TERTIARY PHOSPHINE AND ARSINECOMPLEXES OF Cu(1)
Inorganic Chemistry, Vol. 11, No. 4,1972 753 CONTRIBUTION FROM THE DEPARTMENT OF CHEMISTRY, COLUMBIA UNIVERSITY, NEW YORK,NEW YORK 10027
The Behavior of Tertiary Phosphine and Arsine Complexes of Copper(1) in Chloroform Solution BY STEPHEN J . LIPPARD*
AND
JAMES J. MAYERLE
Received July 20, 1971 The equilibria occurring in chloroform solutions containing phosphine and arsine complexes of the type [(CEH~)~-,(CH~),Y] mCuX ( n = 0, 1, 2; m = 3 , 2 , 1.5; Y = P, As; X = C1, Br, I ) have been investigated using vapor pressure osmometry. The effects of the substituents on the group V donor atom, the group V donor atom itself, and the choice of halide on the extent of ligand dissociation of the 3 : 1 compounds L3CuX are presented and discussed. The most striking influence is
