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7721-01-9

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7721-01-9 Usage

General Description

Tantalum(V) chloride, also known as tantalum pentachloride, is a chemical compound with the formula TaCl5. It appears as a white to light yellow crystalline powder or lumps and has a molar mass of 358.213 g/mol. It is moisture-sensitive, noncombustible, and decomposes when heated to produce toxic and corrosive fumes. Tantalum(V) chloride is used as a catalyst in various chemical reactions, in the manufacture of other chemicals, and in the field of materials science for the production of special glass or ceramics. Tantalum(V) chloride is harmful if swallowed, inhaled, or gets in contact with skin and eyes, so proper protective measures should be taken when handling it.

Check Digit Verification of cas no

The CAS Registry Mumber 7721-01-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,7,2 and 1 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 7721-01:
(6*7)+(5*7)+(4*2)+(3*1)+(2*0)+(1*1)=89
89 % 10 = 9
So 7721-01-9 is a valid CAS Registry Number.
InChI:InChI=1/5ClH.Ta/h5*1H;/q;;;;;+2/p-5

7721-01-9 Well-known Company Product Price

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  • Alfa Aesar

  • (43731)  Tantalum(V) chloride, anhydrous, Puratronic?, 99.995% (metals basis)   

  • 7721-01-9

  • 5g

  • 890.0CNY

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  • Alfa Aesar

  • (43731)  Tantalum(V) chloride, anhydrous, Puratronic?, 99.995% (metals basis)   

  • 7721-01-9

  • 25g

  • 1733.0CNY

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  • Alfa Aesar

  • (43731)  Tantalum(V) chloride, anhydrous, Puratronic?, 99.995% (metals basis)   

  • 7721-01-9

  • 100g

  • 4992.0CNY

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  • Alfa Aesar

  • (10880)  Tantalum(V) chloride, Puratronic?, 99.99% (metals basis)   

  • 7721-01-9

  • 5g

  • 382.0CNY

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  • Alfa Aesar

  • (10880)  Tantalum(V) chloride, Puratronic?, 99.99% (metals basis)   

  • 7721-01-9

  • 25g

  • 1433.0CNY

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  • (10880)  Tantalum(V) chloride, Puratronic?, 99.99% (metals basis)   

  • 7721-01-9

  • 100g

  • 4332.0CNY

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  • Alfa Aesar

  • (14708)  Tantalum(V) chloride, Puratronic?, 99.99% (metals basis)   

  • 7721-01-9

  • 5g

  • 366.0CNY

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  • Alfa Aesar

  • (14708)  Tantalum(V) chloride, Puratronic?, 99.99% (metals basis)   

  • 7721-01-9

  • 25g

  • 1409.0CNY

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  • Alfa Aesar

  • (14708)  Tantalum(V) chloride, Puratronic?, 99.99% (metals basis)   

  • 7721-01-9

  • 100g

  • 2534.0CNY

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  • Alfa Aesar

  • (14164)  Tantalum(V) chloride, 99.8% (metals basis)   

  • 7721-01-9

  • 5g

  • 313.0CNY

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  • Alfa Aesar

  • (14164)  Tantalum(V) chloride, 99.8% (metals basis)   

  • 7721-01-9

  • 25g

  • 1032.0CNY

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  • Alfa Aesar

  • (14164)  Tantalum(V) chloride, 99.8% (metals basis)   

  • 7721-01-9

  • 100g

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7721-01-9SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name TANTALUM(V) CHLORIDE

1.2 Other means of identification

Product number -
Other names Pentachlorotantalum(V)

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:7721-01-9 SDS

7721-01-9Synthetic route

tantalum(V) oxide

tantalum(V) oxide

chlorine
7782-50-5

chlorine

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
With tetrachloromethane; pyrographite heating Ta2O5 and powdered charcoal in Cl2 stream saturated with CCl4 at 650 °C for 4 h;94%
With CCl4; C heating Ta2O5 and powdered charcoal in Cl2 stream saturated with CCl4 at 650 °C for 4 h;94%
1000 °C in H2S/CS2 stream, 300 °C 1 h in N2 stream, then reacting with Cl2; distn. and sublimation;
potassium heptafluorotantalate

potassium heptafluorotantalate

lithium chloride

lithium chloride

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
750 °C for 1 h in inert gas, molar ratio of K2TaF4:chloride = 1:2;90%
700-1000 °C inert gas, molar ratio of K2TaF7:chloride = 1:2;
potassium heptafluorotantalate

potassium heptafluorotantalate

calcium chloride

calcium chloride

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
750 °C for 1 h in inert gas, molar ratio of K2TaF4:chloride = 1:2;90%
700-1000 °C in inert gas, molar ratio of K2TaF7:chloride = 1:2;
aluminium trichloride
7446-70-0

aluminium trichloride

potassium heptafluorotantalate

potassium heptafluorotantalate

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
240 °C; sublimation;90%
240 °C; sublimation;90%
In neat (no solvent) at 240 °C;;
potassium heptafluorotantalate

potassium heptafluorotantalate

magnesium chloride
7786-30-3

magnesium chloride

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
750 °C for 1 h in inert gas, molar ratio of K2TaF4:chloride = 1:2;90%
700-1000 °C in inert gas, molar ratio of K2TaF7:chloride = 1:2;
tantalum

tantalum

chlorine
7782-50-5

chlorine

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
In neat (no solvent) glass tube (170-250°C); purifn. by sublimation in a stream of Cl2;87%
at 200 °C;
Ta powder having particle size (0.1 mm from 170) to 250 °C in some hours in absence of air and moisture; sublimation;
tantalum(V) oxide

tantalum(V) oxide

thionyl chloride
7719-09-7

thionyl chloride

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
ambient temp.;60%
ambient temp.;60%
230-240 °C in bomb tube; by sublimation;
tantalum tetrachloride
13569-72-7

tantalum tetrachloride

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
1000 °C in high vac.;21%
1000 °C in high vac.;21%
500-600 °C in evacuated tube;
500-600 °C in evacuated tube;
tantalum

tantalum

silver(I) chloride

silver(I) chloride

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
In melt reaction at 600 °C;;
tantalum(V) oxide

tantalum(V) oxide

sulfur dichloride
10545-99-0

sulfur dichloride

chlorine
7782-50-5

chlorine

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
300 °C in Cl2 stream saturated with SCl2;
300 °C in Cl2 stream saturated with SCl2;
phosgene
75-44-5

phosgene

tantalum

tantalum

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
In neat (no solvent) reaction on heating of Ta in a phosgene stream at higher temperatures;;
In neat (no solvent) reaction on heating of Ta in a phosgene stream at higher temperatures;;
disulfur dichloride
10025-67-9

disulfur dichloride

tantalum

tantalum

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
In neat (no solvent) reaction by heating of the mixture in a sealed tube at 400 °C for a period of 8 hours;;
400 °C for 8 h;
In neat (no solvent) reaction by heating of the mixture in a sealed tube at 400 °C for a period of 8 hours;;
400 °C for 8 h;
potassium hexachloropalatinate(IV)

potassium hexachloropalatinate(IV)

tantalum

tantalum

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
In melt reaction at 600 °C;;
tantalum

tantalum

mercury(I) chloride

mercury(I) chloride

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
In melt
hydrogenchloride
7647-01-0

hydrogenchloride

tantalum

tantalum

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
with dry HCl gas at 410 °C;
with dry HCl gas at 700 °C;
In neat (no solvent) reaction by passing of HCl over Ta at temperatures above 410 °C;;
tantalum

tantalum

copper dichloride

copper dichloride

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
In melt reaction at 600 °C;;
tantalum

tantalum

mercury dichloride

mercury dichloride

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
heating in evacuated tube;
In neat (no solvent)
heating in evacuated tube;
tantalum

tantalum

palladium dichloride

palladium dichloride

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
In melt reaction at 600 °C;;
phosgene
75-44-5

phosgene

A

tantalum(V) oxide

tantalum(V) oxide

B

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
673-873°C;
673-873°C;
phosgene
75-44-5

phosgene

tantalum(V) oxide

tantalum(V) oxide

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
In neat (no solvent) passing stream of COCl2 over Ta2O5 at 400 °C;;
400 °C;
400°C;
400 °C;
400°C;
tantalum(V) oxide

tantalum(V) oxide

perchloropropene
1888-71-7

perchloropropene

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
boiling 4 h;>99
boiling 4 h;>99
tantalum(V) oxide

tantalum(V) oxide

octachloropropane
594-90-1

octachloropropane

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
under atmospheric pressure, reflux;
under atmospheric pressure, reflux;
tantalum(V) oxide

tantalum(V) oxide

aluminium trichloride
7446-70-0

aluminium trichloride

A

aluminum oxide
1333-84-2, 1344-28-1

aluminum oxide

B

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
250 °C with AlCl3 excess;
400 °C for 48 h at stoichiometric ratio; sublimation;A n/a
B >99
250 °C with AlCl3 excess;
400 °C for 48 h at stoichiometric ratio; sublimation;A n/a
B >99
disulfur dichloride
10025-67-9

disulfur dichloride

tantalum(V) oxide

tantalum(V) oxide

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
200°C;
300°C;
in closed tube at 200 °C in soln. or with streaming S2Cl2 vapor;
hydrogenchloride
7647-01-0

hydrogenchloride

tantalum(IV) oxide

tantalum(IV) oxide

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
byproducts: Ta2O5, H2; 850-1100 °C;
byproducts: Ta2O5, H2; 850-1100 °C;
tetrachloromethane
56-23-5

tetrachloromethane

tantalum(V) oxide

tantalum(V) oxide

niobium(V) oxide

niobium(V) oxide

A

NbO(3+)*3Cl(1-)=NbOCl3

NbO(3+)*3Cl(1-)=NbOCl3

B

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
start temp. of react. 225°C;;
start temp. of react. 225°C;;
start temp. of react. 225°C;;
tantalum(V) oxide

tantalum(V) oxide

A

TaO(3+)*3Cl(1-)=TaOCl3

TaO(3+)*3Cl(1-)=TaOCl3

B

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
With chlorine; pyrographite redn.; >370°C; excess of C; Cl2 stream-speed < 50 ml/min;
With charcoal; Cl2 redn.; >370°C; excess of C; Cl2 stream-speed < 50 ml/min;
tantalum(V) oxide

tantalum(V) oxide

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
With chlorine; pyrographite redn.; >370°C; 5 mol excess of C; Cl2 stream-speed > 100 ml/min;
With charcoal; Cl2 redn.; >370°C; 5 mol excess of C; Cl2 stream-speed > 100 ml/min;
tetrachloromethane
56-23-5

tetrachloromethane

tantalum(V) oxide

tantalum(V) oxide

A

phosgene
75-44-5

phosgene

B

1,1,2,2-tetrachloroethylene
127-18-4

1,1,2,2-tetrachloroethylene

C

carbon dioxide
124-38-9

carbon dioxide

D

chlorine
7782-50-5

chlorine

E

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
In neat (no solvent) byproducts: O2; reaction at 540-700°C;;
In neat (no solvent) byproducts: O2; reaction at 540-700°C;;
tetrachloromethane
56-23-5

tetrachloromethane

tantalum(V) oxide

tantalum(V) oxide

tantalum pentachloride
7721-01-9

tantalum pentachloride

Conditions
ConditionsYield
300-400 °C;
215°C;
280-300 °C with liquid CCl4 in bomb tube;
tantalum pentachloride
7721-01-9

tantalum pentachloride

sodium 3,4-dimethylphenolate
37622-15-4

sodium 3,4-dimethylphenolate

(3,4-dimethylphenoxo)4TaCl(tetrahydrofuran)
129915-97-5

(3,4-dimethylphenoxo)4TaCl(tetrahydrofuran)

Conditions
ConditionsYield
With tetrahydrofuran In tetrahydrofuran; benzene byproducts: NaCl; a clear solution of Na-3,4-dimethylphenole in THF was slowly added to a suspension of TaCl5 in C6H6; was refluxed for 6 h; stoichiometric ratio of TaCl5:Na-3,4-dimethylphenolate=1:4; was filtered; was concentrated under reduced pressure; elem. anal.;100%
3,4-Dimethylphenol
95-65-8

3,4-Dimethylphenol

tantalum pentachloride
7721-01-9

tantalum pentachloride

(3,4-dimethylphenoxo)TaCl4
130136-96-8

(3,4-dimethylphenoxo)TaCl4

Conditions
ConditionsYield
In dichloromethane to a suspension of TaCl5 in CH2Cl2 was added 3,4-dimethylphenole; was stirred by refluxing for 4 h; stoichiometric ratio of TaCl5:3,4-dimethylphenole=1:1; excess of the solvent was removed under reduced pressure; elem. anal.;100%
tantalum pentachloride
7721-01-9

tantalum pentachloride

potassium 3,5-dimethylphenolate
90441-39-7

potassium 3,5-dimethylphenolate

copper dichloride

copper dichloride

Cu{Ta(3,5-dimethylphenoxo)6}2

Cu{Ta(3,5-dimethylphenoxo)6}2

Conditions
ConditionsYield
In tetrahydrofuran; benzene byproducts: KCl; refluxing of KOC6H3Me2 with TaCl5 (16 h), addn. to CuCl2 suspn. in THF, refluxing (16 h); filtration off of KCl, evapn. (60°C, 0.3 torr); elem. anal.;100%
hydrogen fluoride
7664-39-3

hydrogen fluoride

tantalum pentachloride
7721-01-9

tantalum pentachloride

lithium fluoride

lithium fluoride

LiTaF6

LiTaF6

Conditions
ConditionsYield
In neat (no solvent) heating (HF atm., 200°C, 2 h); elem. anal.;100%
2,6-diisopropylbenzenamine
24544-04-5

2,6-diisopropylbenzenamine

tantalum pentachloride
7721-01-9

tantalum pentachloride

[NH3(2,6-(i-Pr)2C6H3)]2[TaCl5(2,6-(i-Pr)2C6H3)]

[NH3(2,6-(i-Pr)2C6H3)]2[TaCl5(2,6-(i-Pr)2C6H3)]

Conditions
ConditionsYield
In dichloromethane inert atmosphere; stirring TaCl5 with excess amine (room temp., 10 h); solvent removal (vac.) drying (vac.); elem. anal.;100%
diethyl ether
60-29-7

diethyl ether

bis(3,5-di-tert-butyl-2-phenol)amine trilithium salt

bis(3,5-di-tert-butyl-2-phenol)amine trilithium salt

tantalum pentachloride
7721-01-9

tantalum pentachloride

(bis(3,5-di-tert-butyl-2-phenol)amine-3H)TaCl2(Et2O)

(bis(3,5-di-tert-butyl-2-phenol)amine-3H)TaCl2(Et2O)

Conditions
ConditionsYield
In toluene Inert atmosphere; Glovebox;100%
tantalum pentachloride
7721-01-9

tantalum pentachloride

bis(3,5-di-tert-butyl-2-hydroxyphenyl)phenylphosphine

bis(3,5-di-tert-butyl-2-hydroxyphenyl)phenylphosphine

TaCl(2,2'-phenylphosphino-bis(4,6-di-tert-butylphenolate))2

TaCl(2,2'-phenylphosphino-bis(4,6-di-tert-butylphenolate))2

Conditions
ConditionsYield
With CH3CH2CH2CH2Li In diethyl ether; hexane (N2); addn. of hexane soln. of butyllithium to ethereal soln. of phenol deriv. at -35°C. stirring at room temp. for 1 h, cooling to -35°C, addn. to suspn. of TaCl5 in ether, stirring at room temp. for 7d; filtraton through celite, evapn., elem. anal.;99.7%
In not given (N2); reatment of tantalum compd. with phenol deriv.;
allyltributylstanane
24850-33-7

allyltributylstanane

tantalum pentachloride
7721-01-9

tantalum pentachloride

tributyltin chloride
1461-22-9

tributyltin chloride

Conditions
ConditionsYield
In acetonitrile N2; equimol., or 2, or 3 equiv. of Sn compd., stirred at -40°C for 5-30 min; NMR, chromy.;99%
In tetrahydrofuran equimol., stirred at -40°C for 5-30 min; NMR, chromy.;16%
dihydrogen peroxide
7722-84-1

dihydrogen peroxide

tantalum pentachloride
7721-01-9

tantalum pentachloride

potassium hydroxide

potassium hydroxide

3K(1+)*[Ta(O2)4](3-)=K3[Ta(O2)4]

3K(1+)*[Ta(O2)4](3-)=K3[Ta(O2)4]

Conditions
ConditionsYield
In methanol TaCl5 and H2O2 stirred in ice-water bath, KOH added, MeOH added, cooled to 5-8°C, MeOH added; filtered, washed with MeOH, dried in air for 45 min to 1 h;99%
1,2-dimethoxyethane
110-71-4

1,2-dimethoxyethane

2,6-diisopropylbenzenamine
24544-04-5

2,6-diisopropylbenzenamine

tantalum pentachloride
7721-01-9

tantalum pentachloride

cis,mer-Ta(NC6H3-2,6-(i)Pr2)Cl3(1,2-dimethoxyethane)

cis,mer-Ta(NC6H3-2,6-(i)Pr2)Cl3(1,2-dimethoxyethane)

Conditions
ConditionsYield
With ZnCl2; pyridine In dichloromethane; toluene N2-atmosphere; addn. of 1 equiv. aniline and pyridine (in CH2Cl2) to mixt. of TaCl5 and DME with excess ZnCl2 (-40°C), stirring for 17 h; filtration, concn. (vac.), recrystn. (CH2Cl2/pentane);99%
With pyridine; zinc(II) chloride Inert atmosphere;
tantalum pentachloride
7721-01-9

tantalum pentachloride

bisneophylzinc

bisneophylzinc

TaCl3(CH2C(CH3)2C6H5)2
192765-18-7

TaCl3(CH2C(CH3)2C6H5)2

Conditions
ConditionsYield
In toluene (N2); reacting TaCl5 with zinc compd. in toluene at 0°C;99%
N,N,N',N'-tetrakis(trimethylsilyl)-1,4-phenylenediamine
25811-68-1

N,N,N',N'-tetrakis(trimethylsilyl)-1,4-phenylenediamine

tantalum pentachloride
7721-01-9

tantalum pentachloride

acetonitrile
75-05-8

acetonitrile

[(Ta(CH3CN)2Cl3)2(μ-1,4-NC6H4N)]
574741-99-4

[(Ta(CH3CN)2Cl3)2(μ-1,4-NC6H4N)]

Conditions
ConditionsYield
In dichloromethane; acetonitrile under Ar atm. to soln. TaCl5 in MeCN at room temp. dropwise over 45 min soln. N,N,N',N'-tetrakis(trimethylsilyl)phenylenediamine in CH2Cl2 (2:1)was added and stirred overnight at room temp.; solvent was removed in vacuo, residue was washed with hexane; elem. anal.;99%
N,N,N',N'-tetrakis(trimethylsilyl)-1,3-phenylenediamine

N,N,N',N'-tetrakis(trimethylsilyl)-1,3-phenylenediamine

tantalum pentachloride
7721-01-9

tantalum pentachloride

acetonitrile
75-05-8

acetonitrile

[(Ta(CH3CN)2Cl3)2(μ-1,3-NC6H4N)]
574742-00-0

[(Ta(CH3CN)2Cl3)2(μ-1,3-NC6H4N)]

Conditions
ConditionsYield
In dichloromethane; acetonitrile under Ar atm. to soln. TaCl5 in MeCN at room temp. dropwise over 45 min soln. N,N,N',N'-tetrakis(trimethylsilyl)phenylenediamine in CH2Cl2 (2:1)was added and stirred overnight at room temp.; solvent was removed in vacuo, residue was washed with hexane; elem. anal.;99%
1-Adamantanamine
768-94-5

1-Adamantanamine

tantalum pentachloride
7721-01-9

tantalum pentachloride

2H3NC10H15(1+)*Ta(NC10H15)Cl5(2-)=[H3NC10H15]2[Ta(NC10H15)Cl5]

2H3NC10H15(1+)*Ta(NC10H15)Cl5(2-)=[H3NC10H15]2[Ta(NC10H15)Cl5]

Conditions
ConditionsYield
In diethyl ether; toluene N2-atmosphere; 3 equiv. amine, stirring for 4 h; evapn. (vac.), washing (pentane), drying (vac.);99%
2-methyl-2-butylamine
594-39-8

2-methyl-2-butylamine

tantalum pentachloride
7721-01-9

tantalum pentachloride

2H3NC(CH3)2C2H5(1+)*Ta(NC(CH3)2C2H5)Cl5(2-)=[H3NC(CH3)2C2H5]2[Ta(NC(CH3)2C2H5)Cl5]

2H3NC(CH3)2C2H5(1+)*Ta(NC(CH3)2C2H5)Cl5(2-)=[H3NC(CH3)2C2H5]2[Ta(NC(CH3)2C2H5)Cl5]

Conditions
ConditionsYield
In diethyl ether; toluene N2-atmosphere; 3 equiv. amine, stirring for 4 h; evapn. (vac.), washing (pentane), drying (vac.); elem. anal.;99%
2,4-dimethylpent-3-ylamine
4083-57-2

2,4-dimethylpent-3-ylamine

tantalum pentachloride
7721-01-9

tantalum pentachloride

2H3NCH(CH(CH3)2)2(1+)*Ta(NCH(CH(CH3)2)2)Cl5(2-)=[H3NCH(CH(CH3)2)2]2[Ta(NCH(CH(CH3)2)2)Cl5]

2H3NCH(CH(CH3)2)2(1+)*Ta(NCH(CH(CH3)2)2)Cl5(2-)=[H3NCH(CH(CH3)2)2]2[Ta(NCH(CH(CH3)2)2)Cl5]

Conditions
ConditionsYield
In diethyl ether; toluene N2-atmosphere; 3 equiv. amine, stirring for 4 h; evapn. (vac.), washing (pentane), drying (vac.); elem. anal.;99%
tantalum pentachloride
7721-01-9

tantalum pentachloride

N-butylamine
109-73-9

N-butylamine

2H3N(CH2)3CH3(1+)*Ta(N(CH2)3CH3)Cl5(2-)=[H3N(CH2)3CH3]2[Ta(N(CH2)3CH3)Cl5]

2H3N(CH2)3CH3(1+)*Ta(N(CH2)3CH3)Cl5(2-)=[H3N(CH2)3CH3]2[Ta(N(CH2)3CH3)Cl5]

Conditions
ConditionsYield
In diethyl ether; toluene N2-atmosphere; 3 equiv. amine, stirring for 4 h; evapn. (vac.), washing (pentane), drying (vac.);99%
dihydrogen peroxide
7722-84-1

dihydrogen peroxide

tantalum pentachloride
7721-01-9

tantalum pentachloride

potassium hydroxide

potassium hydroxide

4O2(2-)*Ta(5+)*3K(1+)

4O2(2-)*Ta(5+)*3K(1+)

Conditions
ConditionsYield
In water at 8℃;99%
cesium hydroxide

cesium hydroxide

dihydrogen peroxide
7722-84-1

dihydrogen peroxide

tantalum pentachloride
7721-01-9

tantalum pentachloride

4O2(2-)*Ta(5+)*3Cs(1+)

4O2(2-)*Ta(5+)*3Cs(1+)

Conditions
ConditionsYield
In water at 8℃;99%
3,4-Dimethylphenol
95-65-8

3,4-Dimethylphenol

tantalum pentachloride
7721-01-9

tantalum pentachloride

(3,4-dimethylphenoxo)2TaCl3
130136-97-9

(3,4-dimethylphenoxo)2TaCl3

Conditions
ConditionsYield
In benzene byproducts: HCl; to a suspension of TaCl5 in C6H6 was added 3,4-dimethylphenole; was refluxed for 18 h; stoichiometric ratio of the TaCl5:3,4-dimethylphenole=1:2; excess of the solvent was removed under reduced pressure; elem. anal.;98.8%
Sn(4+)*C5(CH3)5(1-)*3CH2CH2(CF2)5CF3(1-)=Sn(C5(CH3)5)(CH2CH2(CF2)5CF3)3

Sn(4+)*C5(CH3)5(1-)*3CH2CH2(CF2)5CF3(1-)=Sn(C5(CH3)5)(CH2CH2(CF2)5CF3)3

tantalum pentachloride
7721-01-9

tantalum pentachloride

pentamethylcyclopentadienyl tantalum(V) tetrachloride

pentamethylcyclopentadienyl tantalum(V) tetrachloride

Conditions
ConditionsYield
In dichloromethane byproducts: ClSn(CH2CH2(CF2)5CF3)3; equiv. amts., 1 h; extn. with perfluorohexanes, evapn. of CH2Cl2 phase (vac.);98.6%
tantalum pentachloride
7721-01-9

tantalum pentachloride

tantalum

tantalum

Conditions
ConditionsYield
With potassium chloride; magnesium In neat (no solvent) heating of solid TaCl2 with Mg pieces and KCl above 450°C; pptn. of the formed powder in the melt;; sepn. with H2O and HCl; contains 0.1-0.54 % Mg; exctraction with HCl; contains 0.05-0.15 % Mg;;98%
With potassium chloride; magnesium In neat (no solvent) heating of solid TaCl2 with Mg pieces and KCl above 450°C; pptn. of the formed powder in the melt;; sepn. with H2O and HCl; contains 0.1-0.54 % Mg; exctraction with HCl; contains 0.05-0.15 % Mg;;98%
With magnesium hydride In toluene byproducts: H2; (argon); grinding TaCl5 and MgH2 in a mill, addn. of toluene, heating toreflux temp. under further grinding (8.5 h); washing (toluene), trituration with EtOH, filtration, boiling with concd. HCl, filtration, washing (H2O; EtOH), drying;78.8%
(CH3)3SiNC9H10
181864-52-8

(CH3)3SiNC9H10

diethyl ether
60-29-7

diethyl ether

tantalum pentachloride
7721-01-9

tantalum pentachloride

Ta(tetrahydroquinolinyl)Cl4(OEt2)
181864-37-9

Ta(tetrahydroquinolinyl)Cl4(OEt2)

Conditions
ConditionsYield
In diethyl ether; benzene N2-atmosphere; slow addn. of 1 equiv. ligand to TaCl5 (in C6H6/Et2O=7:1 v/v), stirring at room temp. for 20 h; removal of volatiles (reduced pressure), washing (cold pentane), drying (vac.); can be recrystallized (Et2O, -35°C); elem. anal.;97%
tantalum pentachloride
7721-01-9

tantalum pentachloride

trimethyl-2,4,6 phenate de potassium
79719-34-9

trimethyl-2,4,6 phenate de potassium

Ta(OC6H2(CH3)3)4K(OC6H2(CH3)3)2(C4H8O)2
166761-47-3

Ta(OC6H2(CH3)3)4K(OC6H2(CH3)3)2(C4H8O)2

Conditions
ConditionsYield
In tetrahydrofuran; benzene byproducts: KCl; refluxing (16 h); elem. anal.;97%
tantalum pentachloride
7721-01-9

tantalum pentachloride

lithium 4-chlorophenolate
1121-75-1

lithium 4-chlorophenolate

Ta(OC6H4Cl)4Li(OC6H4Cl)2(C4H8O)2
166761-51-9

Ta(OC6H4Cl)4Li(OC6H4Cl)2(C4H8O)2

Conditions
ConditionsYield
In tetrahydrofuran; benzene byproducts: LiCl; refluxing (16 h); elem. anal.;97%
tantalum pentachloride
7721-01-9

tantalum pentachloride

potassium 3,4-dimethylphenolate
40590-38-3

potassium 3,4-dimethylphenolate

Ta(OC6H3(CH3)2)4K(OC6H3(CH3)2)2(C4H8O)2
166761-43-9

Ta(OC6H3(CH3)2)4K(OC6H3(CH3)2)2(C4H8O)2

Conditions
ConditionsYield
In tetrahydrofuran; benzene byproducts: KCl; room temp., color changes, refluxing (16 h); filtration (pptd. KCl), volatiles removal (reduced pressure); elem. anal.;97%
tantalum pentachloride
7721-01-9

tantalum pentachloride

potassium 3,5-dimethylphenolate
90441-39-7

potassium 3,5-dimethylphenolate

Ta(OC6H3(CH3)2)4K(OC6H3(CH3)2)2(C4H8O)2
166761-45-1

Ta(OC6H3(CH3)2)4K(OC6H3(CH3)2)2(C4H8O)2

Conditions
ConditionsYield
In tetrahydrofuran; benzene byproducts: KCl; refluxing (16 h); elem. anal.;97%
tantalum pentachloride
7721-01-9

tantalum pentachloride

sodium 3,5-dimethylphenolate
37621-81-1

sodium 3,5-dimethylphenolate

Ta(OC6H3(CH3)2)4Na(OC6H3(CH3)2)2(C4H8O)2
166761-48-4

Ta(OC6H3(CH3)2)4Na(OC6H3(CH3)2)2(C4H8O)2

Conditions
ConditionsYield
In tetrahydrofuran; benzene byproducts: NaCl; refluxing (16 h); elem. anal.;97%
tantalum pentachloride
7721-01-9

tantalum pentachloride

sodium 4-chlorophenolate
1193-00-6

sodium 4-chlorophenolate

Ta(OC6H4Cl)4Na(OC6H4Cl)2(C4H8O)2
166761-50-8

Ta(OC6H4Cl)4Na(OC6H4Cl)2(C4H8O)2

Conditions
ConditionsYield
In tetrahydrofuran; benzene byproducts: NaCl; refluxing (16 h); elem. anal.;97%
2,2'-azopyridine
2633-03-6

2,2'-azopyridine

tantalum pentachloride
7721-01-9

tantalum pentachloride

C10H8Cl8N4Ta2

C10H8Cl8N4Ta2

Conditions
ConditionsYield
Stage #1: tantalum pentachloride With 1-methyl-3,6-bis(trimethylsilyl)-1,4-cyclohexadiene In dichloromethane at 20℃;
Stage #2: 2,2'-azopyridine In dichloromethane at 20℃; for 3h;
97%

7721-01-9Relevant articles and documents

Crucial role of halogen atoms in the formation of Ta2S2C

Ziebarth, Robin P.,Vassiliou, John K.,Disalvo, F. J.

, p. 207 - 212 (1989)

The successful preparation of Ta2S2C at 1150°C has been found to be intimately linked to the presence of halogens in the reaction. Adventitious chlorine obtained either through the use of excess carbon or of graphite crucibles was ap

Sears, G. W.,Balke, C. W.

, p. 833 - 844 (1915)

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