Triphenylarsane

Structural formula
General
Surname	Triphenylarsane
other names	Arsine triphenyl; Triphenylarsine;
Molecular formula	C 18 H 15 As
Brief description	colorless solid
External identifiers / databases
EC number	210-032-9
ECHA InfoCard	100.009.121
PubChem	11773
Wikidata	Q414102
properties
Molar mass	306.24 g mol −1
Physical state	firmly
density	1.22 g cm −3
Melting point	59-61 ° C
boiling point	360 ° C (decomposition)
solubility	almost insoluble in water; soluble in cyclohexane;
safety instructions
H and P phrases	H: 301-331-410
	P: 273-304 + 340
Toxicological data	> 500 mg kg −1 ( LD 50 , mouse , ip )
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Triphenylarsane is a chemical compound from the group of organic arsenic compounds .

Extraction and presentation

Triphenylarsane can be obtained by reacting arsenic (III) chloride with chlorobenzene and sodium as reducing agents .

{\ displaystyle \ mathrm {AsCl_ {3} +3 \ PhCl + 6 \ Na \ longrightarrow}}

{\ displaystyle \ mathrm {AsPh_ {3} +6 \ NaCl}}

It is also produced as a by-product in the manufacture of diphenylarsine chloride .

properties

Triphenylarsane is a colorless solid that is insoluble in water. It is the arsenic analogue of triphenylphosphine . It decomposes from a temperature of 360 ° C. The compound has a pyramidal crystal structure with As – C distances from 194.2 to 195.6 pm and C – As – C angles from 99.6 to 100.5 °.

use

Triphenylarsane is used as a ligand in the production of metal complexes and as an intermediate in the production of organic compounds such as tetraphenylarsonium chloride , a popular precipitation reagent. It is part of the chemical warfare agent arsine oil .

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h data sheet triphenylarsane (PDF) from Merck , accessed on January 12, 2011.
↑ ^a ^b Entry on triphenylarsane at TCI Europe, accessed on June 27, 2011.
↑ ^a ^b Shriner, RL; Wolf, CN: Tetraphenylarsonium Chloride Hydrochloride In: Organic Syntheses . 30, 1950, p. 95, doi : 10.15227 / orgsyn.030.0095 ; Coll. Vol. 4, 1963, p. 910 ( PDF ).
↑ Mazhar-ul-Haque, Hasan A. Tayim, Jamil Ahmed, and William Horne: Crystal and molecular structure of triphenylarsine , in: Journal of Chemical Crystallography , 1985 , 15 (6), pp. 561-571; doi : 10.1007 / BF01164771 .

[Merck-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h data sheet triphenylarsane (PDF) from Merck , accessed on January 12, 2011.

[tci-2] Entry on triphenylarsane at TCI Europe, accessed on June 27, 2011.

[Shriner-3] Shriner, RL; Wolf, CN: Tetraphenylarsonium Chloride Hydrochloride In: Organic Syntheses . 30, 1950, p. 95, doi : 10.15227 / orgsyn.030.0095 ; Coll. Vol. 4, 1963, p. 910 ( PDF ).

[4] Mazhar-ul-Haque, Hasan A. Tayim, Jamil Ahmed, and William Horne: Crystal and molecular structure of triphenylarsine , in: Journal of Chemical Crystallography , 1985 , 15 (6), pp. 561-571; doi : 10.1007 / BF01164771 .