NQR STUDIES OF POLYHALOCUPRATE(I) ANIONS

Attempts to prepare the tricyclohexylphosphine or triphenylstibine ana logues of the recently reported (triphenylphosphine)CuX(2)(-) anions w ere unsuccessful and instead resulted in the formation of a variety of polyhalocuprate anions. The structure of one of these, [CH3P(C6H5)(3) ]2Cu2I4, has been determined; monoclinic, P2(1)/c; a = 16.715(3), b = 10.787(2), c = 23.196(3) Angstrom, beta = 98.59(1)degrees, Z = 4; R = 6.3%, R(W) =3.1%. The Cu-63 NQR spectra of twelve such polyhalocuprate anions were observed and the results compared with those of previousl y reported polyhalocuprates.