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Dodecamethylcyclohexasilane, also known as D6-Me12, is a chemical compound belonging to the silane family with the molecular formula Si6H18 or C12H54Si6. It features a cyclohexasilane ring with twelve methyl substituents attached to the silicon atoms, making it a versatile precursor for the synthesis of silicon-based materials.

4098-30-0

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4098-30-0 Usage

Uses

Used in Semiconductor Industry:
Dodecamethylcyclohexasilane is used as a precursor for the synthesis of silicon carbide and silicon nitride, which are crucial compounds in the semiconductor industry. These materials are valued for their exceptional properties, such as high thermal conductivity, electrical insulation, and mechanical strength, making them ideal for various applications in semiconductor devices and components.
Used in Electronics Industry:
D6-Me12 is utilized as a reagent in the production of specialty silicon wafers and thin films for electronic devices. The high purity and uniformity of these materials contribute to the performance and reliability of electronic components, such as transistors, diodes, and integrated circuits.
Used in Advanced Ceramics Development:
Dodecamethylcyclohexasilane has potential applications in the development of advanced ceramics, which are known for their unique properties, such as high temperature resistance, wear resistance, and chemical stability. These ceramics find use in various industries, including aerospace, automotive, and electronics, for components that require high-performance characteristics.
Used as a Surface Modification Agent:
D6-Me12 can also serve as a surface modification agent, improving the performance of various materials by altering their surface properties. This can enhance characteristics such as adhesion, wettability, and chemical resistance, making the materials more suitable for specific applications in industries like coatings, adhesives, and composites.

Check Digit Verification of cas no

The CAS Registry Mumber 4098-30-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,0,9 and 8 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 4098-30:
(6*4)+(5*0)+(4*9)+(3*8)+(2*3)+(1*0)=90
90 % 10 = 0
So 4098-30-0 is a valid CAS Registry Number.
InChI:InChI=1/C12H36Si6/c1-13(2)14(3,4)16(7,8)18(11,12)17(9,10)15(13,5)6/h1-12H3

4098-30-0 Well-known Company Product Price

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  • Aldrich

  • (437492)  Dodecamethylcyclohexasilane  ≥97% (GC)

  • 4098-30-0

  • 437492-1G

  • 3,696.03CNY

  • Detail

4098-30-0SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017

1.Identification

1.1 GHS Product identifier

Product name 1,1,2,2,3,3,4,4,5,5,6,6-dodecamethylhexasilinane

1.2 Other means of identification

Product number -
Other names dodecamethylcyclohexasilane

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:4098-30-0 SDS

4098-30-0Synthetic route

dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
Stage #1: dimethylsilicon dichloride With sodium In tetrahydrofuran at 0 - 20℃;
Stage #2: With naphthalene In tetrahydrofuran at 20℃; for 4h; Reagent/catalyst; Temperature; Reflux;
87.3%
With lithium In tetrahydrofuran at 20℃; for 0.25h; reaction in a US (ultrasonic field);78.4%
With lithium In tetrahydrofuran at 20℃; for 0.25h; Product distribution; Kinetics; reaction in a US (ultrasonic) field; yield dependence on Li-surface;78.4%
methylmagnesium bromide
75-16-1

methylmagnesium bromide

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With [pedeta*H2SiCl(+)]2*[Si6Cl14]2(-) In tetrahydrofuran at 20℃; for 24h;85%
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

B

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With lithium; 1,1,1-trimethyl-2,2,2-triphenyldisilane In tetrahydrofuran Yields of byproduct given;A n/a
B 80%
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

octamethylcyclotetrasiloxane
556-67-2

octamethylcyclotetrasiloxane

B

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

C

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

D

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With tetrahydrofuran; lithium 0 deg C, 1 h, then 20-25 deg C, 2 h; Further byproducts given. Yields of byproduct given;A n/a
B n/a
C 60%
D n/a
With tetrahydrofuran; lithium 0 deg C, 1 h, then 20-25 deg C, 2 h; Further byproducts given. Yields of byproduct given;A n/a
B n/a
C n/a
D 60%
With tetrahydrofuran; lithium at -5 - 0℃; for 1h; Yield given. Further byproducts given. Yields of byproduct given;
Methyltrichlorosilane
75-79-6

Methyltrichlorosilane

1,2-dichlorotetramethylsilane
4342-61-4

1,2-dichlorotetramethylsilane

A

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

B

1,1,2,2,3,3,3a,4,4,5,5,6,6,6a-Tetradecamethyl-octahydro-1,2,3,3a,4,5,6,6a-octasila-pentalene

1,1,2,2,3,3,3a,4,4,5,5,6,6,6a-Tetradecamethyl-octahydro-1,2,3,3a,4,5,6,6a-octasila-pentalene

C

1,1,2,2,3,3,3a,4,4,5,5,6,6,7,7,7a-Hexadecamethyl-octahydro-1,2,3,3a,4,5,6,7,7a-nonasila-indene

1,1,2,2,3,3,3a,4,4,5,5,6,6,7,7,7a-Hexadecamethyl-octahydro-1,2,3,3a,4,5,6,7,7a-nonasila-indene

D

octadecamethylbicyclo<4.4.0>decasilane

octadecamethylbicyclo<4.4.0>decasilane

Conditions
ConditionsYield
With lithium In tetrahydrofuran for 3h;A 48%
B 16%
C 6%
D 24%
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

dichloromethylphenylsilane
149-74-6

dichloromethylphenylsilane

A

monophenylundecamethylcyclohexasilane
37943-96-7

monophenylundecamethylcyclohexasilane

B

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

C

trans-1,4-diphenyldecamethylcyclohexasilane
112080-34-9

trans-1,4-diphenyldecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran Heating;A 24%
B 8%
C 1.2 g
1,2-dichlorotetramethylsilane
4342-61-4

1,2-dichlorotetramethylsilane

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran
tetradecamethylbicyclo[2.2.2]octasilane
30314-60-4

tetradecamethylbicyclo[2.2.2]octasilane

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
In cyclohexane Irradiation;
Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran at 30 - 58℃; Equilibrium constant; Thermodynamic data; ΔH, ΔS;
1,2-dimethoxy-1,1,2,2-tetramethyldisilane
10124-62-6

1,2-dimethoxy-1,1,2,2-tetramethyldisilane

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

C

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With sodium In tetrahydrofuran for 22h; Ambient temperature;A n/a
B n/a
C 48 % Chromat.
decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran at 30 - 58℃; Equilibrium constant; Thermodynamic data; ΔH, ΔS;
tert-butyldichloromethylsilane
18147-18-7

tert-butyldichloromethylsilane

dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

B

1-tert-Butyl-1,2,2,3,3,4,4,5,5,6,6-undecamethyl-hexasilinane

1-tert-Butyl-1,2,2,3,3,4,4,5,5,6,6-undecamethyl-hexasilinane

Conditions
ConditionsYield
With lithium In tetrahydrofuran at 0℃; Yield given;
Di-tert-butyldichlorosilane
18395-90-9

Di-tert-butyldichlorosilane

dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

B

1,1-Di-tert-butyl-2,2,3,3,4,4,5,5-octamethyl-pentasilolane

1,1-Di-tert-butyl-2,2,3,3,4,4,5,5-octamethyl-pentasilolane

C

1,1-Di-tert-butyl-2,2,3,3,4,4,5,5,6,6-decamethyl-hexasilinane

1,1-Di-tert-butyl-2,2,3,3,4,4,5,5,6,6-decamethyl-hexasilinane

Conditions
ConditionsYield
With lithium In tetrahydrofuran at 0℃;
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

diphenylsilyl dichloride
80-10-4

diphenylsilyl dichloride

A

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

B

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

C

1,1,2,2,3,3,4,4-Octamethyl-5,5-diphenyl-pentasilolane

1,1,2,2,3,3,4,4-Octamethyl-5,5-diphenyl-pentasilolane

D

1,1,2,2,3,3,4,4,5,5-Decamethyl-6,6-diphenyl-hexasilinane

1,1,2,2,3,3,4,4,5,5-Decamethyl-6,6-diphenyl-hexasilinane

Conditions
ConditionsYield
With lithium In tetrahydrofuran at 0℃; Yield given. Yields of byproduct given;
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Hexamethylcyclotrisiloxane
541-05-9

Hexamethylcyclotrisiloxane

B

octamethylcyclotetrasiloxane
556-67-2

octamethylcyclotetrasiloxane

C

decamethylcyclopentasiloxane
541-02-6

decamethylcyclopentasiloxane

D

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

E

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

F

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With tetrahydrofuran; lithium at 40 - 45℃; Product distribution; Mechanism; various temperature, various reactant ratios;
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

hexadecamethylcyclooctasilane
23657-43-4

hexadecamethylcyclooctasilane

C

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

D

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 2.6 % Chromat.
B 1.3 % Chromat.
C 17 % Chromat.
D 52 % Chromat.
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3 % Chromat.
B 1.8 % Chromat.
C 12 % Chromat.
D 54 % Chromat.
With lithium In tetrahydrofuran 1) 0 deg C, 6 h; 2) 20 deg C, 1 h; further conditions; Yield given. Further byproducts given;
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3.0 % Chromat.
B 1.8 % Chromat.
C 12 % Chromat.
D 54 % Chromat.
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9-Octadecamethyl-nonasilonane
69804-11-1

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9-Octadecamethyl-nonasilonane

C

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

D

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3.0 % Chromat.
B 1.0 % Chromat.
C 12 % Chromat.
D 54 % Chromat.
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10-Icosamethyl-decasilecane
72059-93-9

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10-Icosamethyl-decasilecane

C

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

D

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3.0 % Chromat.
B 0.23 % Chromat.
C 12 % Chromat.
D 54 % Chromat.
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11-Docosamethyl-1,2,3,4,5,6,7,8,9,10,11-undecasila-cycloundecane
72059-94-0

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11-Docosamethyl-1,2,3,4,5,6,7,8,9,10,11-undecasila-cycloundecane

C

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

D

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3.0 % Chromat.
B 0.26 % Chromat.
C 12 % Chromat.
D 54 % Chromat.
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12-Tetracosamethyl-1,2,3,4,5,6,7,8,9,10,11,12-dodecasila-cyclododecane
72059-95-1

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12-Tetracosamethyl-1,2,3,4,5,6,7,8,9,10,11,12-dodecasila-cyclododecane

C

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

D

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3.0 % Chromat.
B 0.23 % Chromat.
C 12 % Chromat.
D 54 % Chromat.
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

hexacosamethylcyclotridecasilane
72059-96-2

hexacosamethylcyclotridecasilane

C

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

D

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3.0 % Chromat.
B 0.21 % Chromat.
C 12 % Chromat.
D 54 % Chromat.
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14-Octacosamethyl-1,2,3,4,5,6,7,8,9,10,11,12,13,14-tetradecasila-cyclotetradecane
72059-97-3

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14-Octacosamethyl-1,2,3,4,5,6,7,8,9,10,11,12,13,14-tetradecasila-cyclotetradecane

C

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

D

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3.0 % Chromat.
B 0.21 % Chromat.
C 12 % Chromat.
D 54 % Chromat.
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15-Triacontamethyl-1,2,3,4,5,6,7,8,9,10,11,12,13,14,15-pentadecasila-cyclopentadecane
72059-98-4

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15-Triacontamethyl-1,2,3,4,5,6,7,8,9,10,11,12,13,14,15-pentadecasila-cyclopentadecane

C

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

D

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3.0 % Chromat.
B 0.21 % Chromat.
C 12 % Chromat.
D 54 % Chromat.
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

dotriacontamethylcyclohexadecasilane
72059-99-5

dotriacontamethylcyclohexadecasilane

C

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

D

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3.0 % Chromat.
B 0.18 % Chromat.
C 12 % Chromat.
D 54 % Chromat.
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,17-Tetratriacontamethyl-1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17-heptadecasila-cycloheptadecane
72060-00-5

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,17-Tetratriacontamethyl-1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17-heptadecasila-cycloheptadecane

C

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

D

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3.0 % Chromat.
B 0.13 % Chromat.
C 12 % Chromat.
D 54 % Chromat.
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18-Hexatriacontamethyl-1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18-octadecasila-cyclooctadecane
72060-01-6

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18-Hexatriacontamethyl-1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18-octadecasila-cyclooctadecane

C

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

D

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3.0 % Chromat.
B 0.09 % Chromat.
C 12 % Chromat.
D 54 % Chromat.
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18,19,19-Octatriacontamethyl-1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19-nonadecasila-cyclononadecane
72060-02-7

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18,19,19-Octatriacontamethyl-1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19-nonadecasila-cyclononadecane

C

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

D

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3.0 % Chromat.
B 0.05 % Chromat.
C 12 % Chromat.
D 54 % Chromat.
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

C

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

D

C48H144Si24
78142-45-7

C48H144Si24

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3.0 % Chromat.
B 12 % Chromat.
C 54 % Chromat.
D n/a
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

B

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

C

1,1,2,2,3,3,4,4-Octamethyl-5,5-diphenyl-pentasilolane

1,1,2,2,3,3,4,4-Octamethyl-5,5-diphenyl-pentasilolane

D

1,1,2,2,3,3,4,4,5,5-Decamethyl-6,6-diphenyl-hexasilinane

1,1,2,2,3,3,4,4,5,5-Decamethyl-6,6-diphenyl-hexasilinane

Conditions
ConditionsYield
With lithium; diphenylsilyl dichloride In tetrahydrofuran at 0℃; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
octadecamethylbicyclo<4.4.0>decasilane

octadecamethylbicyclo<4.4.0>decasilane

A

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

B

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
Irradiation;
ethanol
64-17-5

ethanol

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

diethoxy dimethylsilane
78-62-6

diethoxy dimethylsilane

Conditions
ConditionsYield
Stage #1: dodecamethylcyclohexasilane With potassium tert-butylate In tetrahydrofuran at 20℃; for 0.5h; Inert atmosphere; Schlenk technique;
Stage #2: With hydrogen; C62H51N2Ni2(1-)*K(1+)*2C4H10O2 In tetrahydrofuran at 45℃; under 1500.15 Torr; for 24h; Schlenk technique;
Stage #3: ethanol In tetrahydrofuran at -40 - 20℃; for 4h; Schlenk technique;
92%
methanol
67-56-1

methanol

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

dimethylmethoxysilane
18033-75-5

dimethylmethoxysilane

Conditions
ConditionsYield
In diethyl ether at 5℃; for 1.5h; Irradiation;89%
ethanol
64-17-5

ethanol

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

dimethyl(ethoxy)silane
14857-34-2

dimethyl(ethoxy)silane

Conditions
ConditionsYield
In diethyl ether at 5℃; for 1.5h; Irradiation;87%
2,2-dimethyl-propanol-1
75-84-3

2,2-dimethyl-propanol-1

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

dimethylneopentoxysilane

dimethylneopentoxysilane

Conditions
ConditionsYield
In diethyl ether at 5℃; for 1.5h; Irradiation;87%
dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

isopropyl alcohol
67-63-0

isopropyl alcohol

dimethylisopropoxysilane
1000-91-5

dimethylisopropoxysilane

Conditions
ConditionsYield
In diethyl ether at 5℃; for 1.5h; Irradiation;86%
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
Stage #1: dimethylsilicon dichloride With sodium In tetrahydrofuran at 0 - 20℃;
Stage #2: With naphthalene In tetrahydrofuran at 20℃; for 4h; Reagent/catalyst; Temperature; Reflux;
87.3%
With lithium In tetrahydrofuran at 20℃; for 0.25h; reaction in a US (ultrasonic field);78.4%
With lithium In tetrahydrofuran at 20℃; for 0.25h; Product distribution; Kinetics; reaction in a US (ultrasonic) field; yield dependence on Li-surface;78.4%
methylmagnesium bromide
75-16-1

methylmagnesium bromide

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With [pedeta*H2SiCl(+)]2*[Si6Cl14]2(-) In tetrahydrofuran at 20℃; for 24h;85%
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

B

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With lithium; 1,1,1-trimethyl-2,2,2-triphenyldisilane In tetrahydrofuran Yields of byproduct given;A n/a
B 80%
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

octamethylcyclotetrasiloxane
556-67-2

octamethylcyclotetrasiloxane

B

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

C

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

D

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With tetrahydrofuran; lithium 0 deg C, 1 h, then 20-25 deg C, 2 h; Further byproducts given. Yields of byproduct given;A n/a
B n/a
C 60%
D n/a
With tetrahydrofuran; lithium 0 deg C, 1 h, then 20-25 deg C, 2 h; Further byproducts given. Yields of byproduct given;A n/a
B n/a
C n/a
D 60%
With tetrahydrofuran; lithium at -5 - 0℃; for 1h; Yield given. Further byproducts given. Yields of byproduct given;
Methyltrichlorosilane
75-79-6

Methyltrichlorosilane

1,2-dichlorotetramethylsilane
4342-61-4

1,2-dichlorotetramethylsilane

A

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

B

1,1,2,2,3,3,3a,4,4,5,5,6,6,6a-Tetradecamethyl-octahydro-1,2,3,3a,4,5,6,6a-octasila-pentalene

1,1,2,2,3,3,3a,4,4,5,5,6,6,6a-Tetradecamethyl-octahydro-1,2,3,3a,4,5,6,6a-octasila-pentalene

C

1,1,2,2,3,3,3a,4,4,5,5,6,6,7,7,7a-Hexadecamethyl-octahydro-1,2,3,3a,4,5,6,7,7a-nonasila-indene

1,1,2,2,3,3,3a,4,4,5,5,6,6,7,7,7a-Hexadecamethyl-octahydro-1,2,3,3a,4,5,6,7,7a-nonasila-indene

D

octadecamethylbicyclo<4.4.0>decasilane

octadecamethylbicyclo<4.4.0>decasilane

Conditions
ConditionsYield
With lithium In tetrahydrofuran for 3h;A 48%
B 16%
C 6%
D 24%
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

dichloromethylphenylsilane
149-74-6

dichloromethylphenylsilane

A

monophenylundecamethylcyclohexasilane
37943-96-7

monophenylundecamethylcyclohexasilane

B

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

C

trans-1,4-diphenyldecamethylcyclohexasilane
112080-34-9

trans-1,4-diphenyldecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran Heating;A 24%
B 8%
C 1.2 g
1,2-dichlorotetramethylsilane
4342-61-4

1,2-dichlorotetramethylsilane

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran
tetradecamethylbicyclo[2.2.2]octasilane
30314-60-4

tetradecamethylbicyclo[2.2.2]octasilane

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
In cyclohexane Irradiation;
Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran at 30 - 58℃; Equilibrium constant; Thermodynamic data; ΔH, ΔS;
1,2-dimethoxy-1,1,2,2-tetramethyldisilane
10124-62-6

1,2-dimethoxy-1,1,2,2-tetramethyldisilane

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

C

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With sodium In tetrahydrofuran for 22h; Ambient temperature;A n/a
B n/a
C 48 % Chromat.
decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran at 30 - 58℃; Equilibrium constant; Thermodynamic data; ΔH, ΔS;
tert-butyldichloromethylsilane
18147-18-7

tert-butyldichloromethylsilane

dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

B

1-tert-Butyl-1,2,2,3,3,4,4,5,5,6,6-undecamethyl-hexasilinane

1-tert-Butyl-1,2,2,3,3,4,4,5,5,6,6-undecamethyl-hexasilinane

Conditions
ConditionsYield
With lithium In tetrahydrofuran at 0℃; Yield given;
Di-tert-butyldichlorosilane
18395-90-9

Di-tert-butyldichlorosilane

dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

B

1,1-Di-tert-butyl-2,2,3,3,4,4,5,5-octamethyl-pentasilolane

1,1-Di-tert-butyl-2,2,3,3,4,4,5,5-octamethyl-pentasilolane

C

1,1-Di-tert-butyl-2,2,3,3,4,4,5,5,6,6-decamethyl-hexasilinane

1,1-Di-tert-butyl-2,2,3,3,4,4,5,5,6,6-decamethyl-hexasilinane

Conditions
ConditionsYield
With lithium In tetrahydrofuran at 0℃;
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

diphenylsilyl dichloride
80-10-4

diphenylsilyl dichloride

A

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

B

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

C

1,1,2,2,3,3,4,4-Octamethyl-5,5-diphenyl-pentasilolane

1,1,2,2,3,3,4,4-Octamethyl-5,5-diphenyl-pentasilolane

D

1,1,2,2,3,3,4,4,5,5-Decamethyl-6,6-diphenyl-hexasilinane

1,1,2,2,3,3,4,4,5,5-Decamethyl-6,6-diphenyl-hexasilinane

Conditions
ConditionsYield
With lithium In tetrahydrofuran at 0℃; Yield given. Yields of byproduct given;
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Hexamethylcyclotrisiloxane
541-05-9

Hexamethylcyclotrisiloxane

B

octamethylcyclotetrasiloxane
556-67-2

octamethylcyclotetrasiloxane

C

decamethylcyclopentasiloxane
541-02-6

decamethylcyclopentasiloxane

D

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

E

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

F

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With tetrahydrofuran; lithium at 40 - 45℃; Product distribution; Mechanism; various temperature, various reactant ratios;
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

hexadecamethylcyclooctasilane
23657-43-4

hexadecamethylcyclooctasilane

C

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

D

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 2.6 % Chromat.
B 1.3 % Chromat.
C 17 % Chromat.
D 52 % Chromat.
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3 % Chromat.
B 1.8 % Chromat.
C 12 % Chromat.
D 54 % Chromat.
With lithium In tetrahydrofuran 1) 0 deg C, 6 h; 2) 20 deg C, 1 h; further conditions; Yield given. Further byproducts given;
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3.0 % Chromat.
B 1.8 % Chromat.
C 12 % Chromat.
D 54 % Chromat.
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9-Octadecamethyl-nonasilonane
69804-11-1

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9-Octadecamethyl-nonasilonane

C

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

D

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3.0 % Chromat.
B 1.0 % Chromat.
C 12 % Chromat.
D 54 % Chromat.
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10-Icosamethyl-decasilecane
72059-93-9

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10-Icosamethyl-decasilecane

C

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

D

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3.0 % Chromat.
B 0.23 % Chromat.
C 12 % Chromat.
D 54 % Chromat.
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11-Docosamethyl-1,2,3,4,5,6,7,8,9,10,11-undecasila-cycloundecane
72059-94-0

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11-Docosamethyl-1,2,3,4,5,6,7,8,9,10,11-undecasila-cycloundecane

C

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

D

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3.0 % Chromat.
B 0.26 % Chromat.
C 12 % Chromat.
D 54 % Chromat.
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12-Tetracosamethyl-1,2,3,4,5,6,7,8,9,10,11,12-dodecasila-cyclododecane
72059-95-1

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12-Tetracosamethyl-1,2,3,4,5,6,7,8,9,10,11,12-dodecasila-cyclododecane

C

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

D

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3.0 % Chromat.
B 0.23 % Chromat.
C 12 % Chromat.
D 54 % Chromat.
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

hexacosamethylcyclotridecasilane
72059-96-2

hexacosamethylcyclotridecasilane

C

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

D

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3.0 % Chromat.
B 0.21 % Chromat.
C 12 % Chromat.
D 54 % Chromat.
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14-Octacosamethyl-1,2,3,4,5,6,7,8,9,10,11,12,13,14-tetradecasila-cyclotetradecane
72059-97-3

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14-Octacosamethyl-1,2,3,4,5,6,7,8,9,10,11,12,13,14-tetradecasila-cyclotetradecane

C

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

D

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3.0 % Chromat.
B 0.21 % Chromat.
C 12 % Chromat.
D 54 % Chromat.
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15-Triacontamethyl-1,2,3,4,5,6,7,8,9,10,11,12,13,14,15-pentadecasila-cyclopentadecane
72059-98-4

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15-Triacontamethyl-1,2,3,4,5,6,7,8,9,10,11,12,13,14,15-pentadecasila-cyclopentadecane

C

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

D

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3.0 % Chromat.
B 0.21 % Chromat.
C 12 % Chromat.
D 54 % Chromat.
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

dotriacontamethylcyclohexadecasilane
72059-99-5

dotriacontamethylcyclohexadecasilane

C

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

D

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3.0 % Chromat.
B 0.18 % Chromat.
C 12 % Chromat.
D 54 % Chromat.
dimethylsilicon dichloride
75-78-5

dimethylsilicon dichloride

A

Tetradecamethylcycloheptasilan
13452-94-3

Tetradecamethylcycloheptasilan

B

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,17-Tetratriacontamethyl-1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17-heptadecasila-cycloheptadecane
72060-00-5

1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,17-Tetratriacontamethyl-1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17-heptadecasila-cycloheptadecane

C

decamethylcyclopentasilane
13452-92-1

decamethylcyclopentasilane

D

dodecamethylcyclohexasilane
4098-30-0

dodecamethylcyclohexasilane

Conditions
ConditionsYield
With potassium Sodium In tetrahydrofuran for 8h; Heating; Further byproducts given;A 3.0 % Chromat.
B 0.13 % Chromat.
C 12 % Chromat.
D 54 % Chromat.

4098-30-0Relevant articles and documents

CYCLIC POLYSILANES. XIX. A TEMPERATURE STUDY OF REDISTRIBUTION EQUILIBRIA BETWEEN PERMETHYLCYCLOPOLYSILANES

Brough, Lawrence F.,West, Robert

, p. 139 - 146 (1980)

Equilibria among the cyclic compounds (Me2Si)n where n=5, 6 and 7 have been studied between 30-58 deg C.Thermodynamic values for the redistribution reactions between pairs of compounds are, for n=5 -> 6, ΔH=-18 kcal/mole, ΔS=-20 cal/deg. mole; for n=7 -> 6, ΔH -3, ΔS +33; for n=7 -> 5, ΔH +18, ΔS +51.The enthalpies indicate that the stabilities of the rings increase in the order (Me2Si)5 (Me2Si)7 (Me2Si)6.The differences are smaller than corresponding differences among the cycloalkanes, probably because the silicon compounds are less affected by steric repulsions and angle strain.

Preparation and characterization of the inclusion complexes of poly(dimethylsilane)s with cyclodextrins

Okumura, Hiromichi,Kawaguchi, Yoshinori,Harada, Akira

, p. 6422 - 6429 (2003)

β-Cyclodextrin (β-CD) and γ-cyclodextrin (γ-CD) formed inclusion complexes with poly-(dimethylsilane)s (PSi) of various molecular weights to give crystalline compounds. However, α-cyclodextrin (α-CD) did not form complexes with PSi of any molecular weight. The yelds of the γ-CD-PSi inclusion complexes decreased with increasing molecular weight of PSi. In contrast, the yields of the γ-CD-PSi inclusion complexes increased with increasing molecular weight, reached a maximum at molecular weight of around 760, and gradually decreased at higher molecular weight. The chain-length selectivities are totally different between β-CD and γ-CD. The γ-CD-PSi inclusion complexes are stoichiometric 1:3 (γ-cyclodextrin:monomer unit of PS) compounds. The complexes were isolated and characterized by 1H NMR, 13C CP/MAS NMR, and X-ray diffraction studies. These results suggest that CDs form channel-type complexes with PSi. The optical properties were studied by ultraviolet absorption and fluorescence spectroscopy. The PSi main chain in the cavities of γ-CD takes an all-trans conformation.

METHOD FOR PRODUCING CYCLIC POLYSILANE COMPOUND

-

Paragraph 0089-0109, (2021/09/10)

Provided is a method for producing a cyclic polysilane compound simply and easily in a higher yield. The method for producing a cyclic polysilane compound according to an embodiment of the present invention comprising a reaction step of adding a silane monomer compound represented by Formula (I) below into a liquid mixture containing metallic sodium and a lithium salt and allowing them to react: where, R1 and R2 each independently represent a hydrogen atom, a hydrocarbon group, an alkoxy group, or a halogen atom, X1 and X2 each independently represent a halogen atom or an alkoxy group, and ni is an integer that is greater than or equal to 1.

METHOD FOR PRODUCING CYCLIC POLYSILANE COMPOUND

-

Paragraph 0073-0080, (2019/10/16)

PROBLEM TO BE SOLVED: To provide a method for producing a cyclic polysilane compound from a silane monomer compound in one pot. SOLUTION: The present invention provides a method for producing a cyclic polysilane compound, including a first step of adding a silane monomer compound to a liquid mixture of a sodium dispersion and a solvent for a reaction, and a second step of adding an aromatic hydrocarbon to the reaction liquid obtained from the first step and heating and refluxing the mixture. SELECTED DRAWING: None COPYRIGHT: (C)2019,JPOandINPIT

METHOD FOR PRODUCING CYCLOHEXASILANE

-

Page/Page column, (2014/02/15)

Provided is a method for efficiently obtaining cyclohexasilane using a cyclic silane dianion salt as a raw material without a by-product such as silane gas by a simple device. The method for producing cyclohexasilane has a feature that a cyclic silane dianion salt represented by the following general formula (i) or general formula (ii) is reacted with an aluminum-based reducing agent or a boron-based reducing agent: wherein X represents a halogen element, a represents an integer of 0 to 6, and R1 to R4 each independently represent a hydrogen atom, an alkyl group, or an aryl group; wherein X represents a halogen element, a represents an integer of 0 to 6, and R5 to R8 each independently represent a hydrogen atom, an alkyl group, or an aryl group.

Compounds containing tetradecachlorocyclohexasilane dianion

-

, (2008/06/13)

Compounds containing a tetradecachlorocyclohexasilane dianion are prepared by contacting trichlorosilane with a reagent composition comprising a tertiary polyamine. The compound ?pedeta.SiH2 Cl+1 !2 ?Si6 Cl14-2 ! wherein pedeta is N,N,N',N",N"-pentaethyldiethylenetriamine is prepared by contacting trichlorosilane with pedeta. The compound ?Ph4 P+1 !2 ?Si6 Cl14-2 ! is prepared by contacting trichlorosilane with a mixture of N,N,N',N'-tetraethylethylenediamine and triphenylphosphonium chloride. The tetradecachlorocyclohexasilane dianion can be chemically reduced to cyclohexasilane, a compound useful in the deposition of amorphous silicon films. The tetradecachlorcyclohexasilane dianion can also be contacted with a Grignard reagent to form a dodecaorganocyclohexasilane.

Synthesis of α,ω-dihalopermethyloligosilanes and silane-siloxane copolymers

Chernyavskii,Zavin

, p. 1449 - 1453 (2007/10/03)

α,ω-Dibromopermethyloligosilanes, Br(SiMe2)nBr (n = 2-4, 6), were prepared by the reaction of dodecamethylcyclohexasilane with bromine. The reaction of (Me2Si)6 with MCl4 (M = Sn, Ti) proceeds with the cleavage of Si-Si-and Si-C-bonds with the formation of α,ω-dichloropermethyloligosilanes, Cl(SiMe2)nCI (n = 2-4, 6), and chloro derivatives of cyclohexasilane, ClmSi6Me12-m (m = 1, 2). Silane-siloxane copolymers of regular structure were obtained by heterofunctional copolycondensation of α,ω-dihalopermethyloligosilanes with 1,5-dihydroxyhexamethyltrisiloxane.

Synthesis, properties and characterization of octadecamethylbicyclodecasilane

Jenkner, Peter K.,Hengge, Edwin,Czaputa, Rainer,Kratky, Christoph

, p. 83 - 90 (2007/10/02)

The title compound 1 was obtained by Wurtz-type dehalogenative coupling of sym-dichlorotetramethyldisilane and trichloromethylsilane under appropriate conditions.Spectroscopic data for 1 are compared with those for bi(undecamethylcyclopentasilanyl) (2), a possible structural isomer.An X-ray structural study and 29Si-INEPT-INADEQUATE-NMR spectroscopy confirmed that only the trans-isomer of 1 is formed.Several attempts were made to obtain functional derivatives, but monocyclic and catenated oligosilanes were always obtained owing to breakdown of the bicyclic compound.Chemical and electrolytic reduction towards an anion radical was carried out at various temperatures.The ESR signal at 150 K shows an overlap of two distinct species: along with the spectrum of the well known Si5Me10(radical anion) that of a hitherto unknown species was observed.

Sonochemical synthesis of dodecamethylcyclohexasilane

Los', G. P.,Zinov'ev, O. I.,Bashkirova, S. A.,Ivanov, V. I.,Lysova, G. V.,et al.

, p. 307 - 309 (2007/10/02)

A comparative study of the kinetics of the reaction of dimethyldichlorosilane with metallic lithium under strong stirring or in the presence of ultrasonic vibrations in the cavitation regime has been carried out in order to demonstrate the special features of the reaction in the ultrasonic field and to obtain information on its mechanism.

γ-Induced Generation of Dimethylsilylene from Dodecamethylcyclohexasilane

Oka, Kunio,Nakao, Ren,Nagata, Yoshio,Dohmaru, Takaaki

, p. 337 - 340 (2007/10/02)

γ-Irradiation of dodecamethylcyclohexasilane (I) generates dimethylsilylene in 65percent yield when benzene is used as a solvent.Kinetic studies using anthracene as quencher are consistent with a mechanism proposed for the generation of dimethylsilylene, Benzene is first excited by γ-rays and energy is transferred to (I).Excited (I) decomposes to give dimethylsilylene presumably in a way similar to (I) excited by u.v. light.The ratio of the rate constant for self-deactivation of benzene to that for energy transfer from benzene to (I), k2/k3, is 5.1 x 1E-2 mol l-1 at room temperature.Energy transfer to (I) is hindered by added anthracene.The ratio of the rate constant for energy transfer to anthracene to that for energy transfer to (I), k6/k3, is ca. 6 at room temperature.A similar energy transfer is possible in the case of u.v. irradiation.

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