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Cas Database |
| Name |
Tris(trimethylsilyl)silane |
EINECS | -0 |
| CAS No. | 1873-77-4 | Density | 0.806 g/mL at 25 °C(lit.) |
| PSA | 0.00000 | LogP | 3.46330 |
| Solubility | Insoluble in water | Melting Point |
N/A |
| Formula | C9H28Si4 | Boiling Point | 213.245 °C at 760 mmHg |
| Molecular Weight | 248.663 | Flash Point | 77.248 °C |
| Transport Information | UN 1993 3/PG 3 | Appearance | clear colorless to pale yellow liquid |
| Safety | 16-26-36 | Risk Codes | 10-36/37/38 |
| Molecular Structure |
|
Hazard Symbols |
 Xi
|
| Synonyms |
1,1,1,3,3,3-Hexamethyl-2-(trimethylsilyl)trisilane;TTMSS; |
Article Data | 16 |
Tris(trimethylsilyl)silane Synthetic route
- 1873-77-4
tris-(trimethylsilyl)silane
| Conditions | Yield |
|---|---|
| With sulfuric acid In tetrahydrofuran; diethyl ether | 93% |
| Conditions | Yield |
|---|---|
| Stage #1: tetrakis(trimethylsilyl)silane With potassium tert-butylate In tetrahydrofuran at 30 - 33℃; for 5h; Stage #2: With acetic acid In water at 5 - 10℃; for 2h; | 90.3% |
| With methyllithium lithium bromide In diethyl ether at 20℃; for 19h; Inert atmosphere; | 77% |
| Multi-step reaction with 2 steps 1: 80 percent / tetrahydrofuran / 1 h 2: 93 percent / H2SO4 / tetrahydrofuran; diethyl ether View Scheme |
| Conditions | Yield |
|---|---|
| With sodium tetrahydroborate |
| Conditions | Yield |
|---|---|
| With sodium tetrahydroborate |
- 26245-35-2
Tris(trimethylsilyl)iodsilan
- 1873-77-4
tris-(trimethylsilyl)silane
| Conditions | Yield |
|---|---|
| With sodium tetrahydroborate |
- 112044-12-9
{(CH3)3Si}3SiCHO
- 1873-77-4
tris-(trimethylsilyl)silane
| Conditions | Yield |
|---|---|
| In benzene-d6 at 100℃; Rate constant; decomposition; |
- 182255-93-2
tris(trimethylsilyl)-2-fluoroethoxysilane
A
- 1873-77-4
tris-(trimethylsilyl)silane
| Conditions | Yield |
|---|---|
| at 350℃; under 1E-06 Torr; for 0.166667h; Product distribution; thermolysis at various pressure and temperature; |
A
- 1873-77-4
tris-(trimethylsilyl)silane
B
- 7428-60-6
1,1,1,3,3,3-hexamethyl-2-(trimethylsilyl)-2-trisilanol
| Conditions | Yield |
|---|---|
| at 180℃; Product distribution; | A 55 % Chromat. B 13 % Chromat. C 10 % Chromat. D n/a |
- 1873-77-4
tris-(trimethylsilyl)silane
| Conditions | Yield |
|---|---|
| In benzene-d6 gradually decompn. in C6D6; |
| Conditions | Yield |
|---|---|
| In not given detected by (1)H-NMR; | A 65-75 B n/a |
Tris(trimethylsilyl)silane Specification
The Trisilane,1,1,1,3,3,3-hexamethyl-2-(trimethylsilyl)-, with the CAS registry number 1873-77-4, is also known as Tris(trimethylsilyl)silane. It belongs to the product categories of Reduction; Si (Classes of Silicon Compounds); Si-H Compounds; Silicon Compounds (for Synthesis); Si-Si Compounds; Synthetic Organic Chemistry. This chemical's molecular formula is C9H28Si4 and molecular weight is 248.66. What's more, its IUPAC name is Bis(trimethylsilyl)silyl-trimethylsilane. Additionally, it should be preserved hermetically and put in a cool, dry place. You should ensure that workplaces have good ventilation or exhaust. It is clear colorless to pale yellow liquid.
Physical properties about Trisilane,1,1,1,3,3,3-hexamethyl-2-(trimethylsilyl)-: (1)ACD/LogP: 5.50; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 5.503; (4)ACD/LogD (pH 7.4): 5.503; (5)ACD/BCF (pH 5.5): 8952.059; (6)ACD/BCF (pH 7.4): 8952.059; (7)ACD/KOC (pH 5.5): 23462.625; (8)ACD/KOC (pH 7.4): 23462.625; (9)#H bond acceptors: 0; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 3; (12)Polar Surface Area: 0 Å2; (13)Flash Point: 77.248 °C; (14)Enthalpy of Vaporization: 43.123 kJ/mol; (15)Boiling Point: 213.245 °C at 760 mmHg; (16)Vapour Pressure: 0.242 mmHg at 25 °C; (17)Density: 0.806 g/cm3.
Uses of Trisilane,1,1,1,3,3,3-hexamethyl-2-(trimethylsilyl)-: it is used to produce other chemicals. For example, it can react with Maleic acid anhydride to get 2-(Tris(trimethylsilyl)silyl)butanedioic anhydride. The reaction occurs with reagent Azoisobutyronitrile and solvent Toluene at temperature of 90 °C. The yield is 89 %.
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When you are dealing with this chemical, you should be very careful. This chemical is inflammation to the skin, eyes and respiratory system or other mucous membranes. What’s more, it’s flammable. So keep it away from sources of ignition. Therefore, you should wear suitable protective clothing in order to avoiding to contact with skin and eyes. Additionally, you can not breathe gas/fumes/vapour/spray. And in case of contacting with eyes, you should rinse immediately with plenty of water and seek medical advice.
You can still convert the following datas into molecular structure:
(1) SMILES: C[Si](C)(C)[SiH]([Si](C)(C)C)[Si](C)(C)C
(2) InChI: InChI=1/C9H28Si4/c1-11(2,3)10(12(4,5)6)13(7,8)9/h10H,1-9H3
(3) InChIKey: SQMFULTZZQBFBM-UHFFFAOYAZ
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