Synthesis and X-ray crystal structure of chloro[2(1H)-pyridinethione-S]-bis(triphenylphosphine)copper(I)

Abstract

The preparation and single-crystal structure analysis of [CuCl(C₅H₅NS)(PPh₃)₂] is reported. The geometry about the copper atom is distorted tetrahedral with one co-ordination site being occupied by the thione S atom of the neutral C₅H₅NS ligand; Cu–S 2.374(2)Å. The complex features a strong intramolecular hydrogen-bonding interaction between the nitrogen-bound hydrogen atom and the Cl atom; N–H ⋯ Cl of 2.219(8)Å. Crystals are monoclinic, space group P2₁/c with unit-cell dimensions a= 14.456(4), b= 10.152(3), c= 24.517(5)Å, β= 93.40(2)°, and Z= 4. The structure was refined by a full-matrix least-squares procedure to R= 0.067 for 3 413 reflections for which I 2.5σ(I).