Reactivity of Arsenic Trichloride and Glycolates with O,O′‐bis(ortho‐, meta‐ or para‐tolyl) Dithiophosphates

Abstract

Reactions of arsenic trichloride and 2‐chloro‐1,3,2‐dioxarsolane or ‐dioxarsinane, sC1 (G=-CH₂CH₂- or -CH₂CH₂-CH₂-), with sodium salt of O,O′‐bis(ortho‐, meta‐ or para‐tolyl) dithiophosphate ligands, (o‐, m‐ or p‐ MeC₆H₄O)₂PS₂Na, in different molar ratio in toluene under anhydrous conditions results in the formation of complexes corresponded to [{(o‐, m‐ or p‐MeC₆H₄O)₂PS₂}_nAsCl_3‐n] (n=1 or 2) and [(o-, m- or p- MeC₆H₄O)₂ (n=2 or 3) in 83–93% yield. These yellow complexes were characterized by elemental analysis, molecular weight determinations, IR and NMR (¹H, ¹³C and ³¹P) spectroscopic studies, which revealed monomeric nature of the complexes and anisobidentate mode of bonding of dithio moiety with arsenic atom, leading to a trigonal bipyramidal or octahedral geometry.

Keywords:

• cresyl
• tolyl
• dialkyl
• alkylene
• dithiophosphates

Acknowledgments

Dedicated to Professor Dr. Herbert W. Roesky on his 70th birthday