Triphenylarsine



Triphenylarsine
General
Systematic name Triphenylarsine
Other names Triphenylarsane
Molecular formula C18H15As
SMILES  ?
Molar mass 306.23 g/mol
Appearance colorless solid
CAS number [603-32-7]
Properties
Density and phase 1.395 g/cm3
water insoluble
Other solvents benzene, methylene chloride
Melting point 61 °C
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Structure
Coordination
geometry 		 ?
Crystal structure triclinic
Dipole moment  ? D
Hazards
MSDS External MSDS
Main hazards toxic
NFPA 704
Flash point  ? °C
R/S statement S: 20/21-28-45-60-61
RTECS number CH8942500
Supplementary data page
Structure and
properties 		εr, etc.
Thermodynamic
data 		Phase behaviour
Solid, liquid, gas
Spectral data MS
Related compounds
Related compounds Triphenylphosphine
Except where noted otherwise, data are given for
materials in their standard state (at 25 °C, 100 kPa)
Infobox disclaimer and references

Triphenylarsine is the organic synthesis. The molecule is pyramidal with As-C distances of 1.942-1.956 Å and C-As-C angles of 99.6-100.5°.[1]

This compound is prepared by the reaction of arsenic trichloride with sodium as the reducing agent:[2]

AsCl3 + 3 PhCl + 6 Na → AsPh3 + 6 NaCl

Uses

AsPh3 is the precursor to tetraphenylarsonium chloride, [AsPh4]Cl, a popular precipitating agent.[2]

AsPh3 forms complexes with low valent metals that are analogous to the corresponding triphenylphosphine derivatives, such as IrCl(CO)(AsPh3)2 and RhCl(AsPh3)3.

References

  1. ^ Mazhar-ul-Haque, Hasan A. Tayim, Jamil Ahmed, and William Horne "Crystal and molecular structure of triphenylarsine" Journal of Chemical Crystallography Volume 15, Number 6 / 1985. DOI 10.1007/BF01164771
  2. ^ a b Shriner, R. L.; Wolf, C. N. "Tetraphenylarsonium Chloride Hydrochloride” Organic Syntheses, Collected Volume 4, page 910, 1963. http://www.orgsyn.org/orgsyn/pdfs/CV4P0910.pdf
 
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