S. Ramaprabhu et al., CU-63 NQR AND STRUCTURAL STUDIES OF COMPLEXES FORMED BETWEEN CU(I) HALIDES AND TRIS(O-METHOXYPHENYL)PHOSPHINE OR TRIS(P-TOLYL)PHOSPHINE LIGANDS, Zeitschrift fur Naturforschung. A, A journal of physical sciences, 53(6-7), 1998, pp. 625-629
The crystal structure of [tri(o-methoxyphenyl)phosphine](2)Cu2Br2 show
s it to be a halogen-bridged dimer with three-coordinated Cu(I) sites.
The Cu-63 NQR frequency of the corresponding chloride indicates that
it has a similar structure. The Cu-63 NQR frequencies of the complexes
of tri(p-tolyl)phosphine, L3Cu2X2, with cuprous chloride and bromide
are consistent with their having halogen-bridged structures with both
three- and four-coordinated Cu(I) sites analogous to those formed by t
riphenylphosphine and tri(m-tolyl)phosphine. Cu(I) sites. [CuBr(P(C7H7
O)(3)](2); Triclinic, P (1) over bar, Z=2, a=8.969(1), b=10.510(2), c=
11.428(2) Angstrom, alpha=99.46(1), beta=97.95(1), gamma= 104.17(1)de
grees, R=3.5%, R-omega=2.2%.