Chemistry of the Group-1B Metals. XIX. Crystal and Molecular-Structures of (2-Phenylethynyl)(Triphenylphosphine)Gold(I), Au(C=CPh)(PPh3)

Abstract

The molecular structure of Au(C2Ph)(PPh3) consists a gold atom almost linearly coordinated by a phenylethynyl group [Au-C 1.97(2), 2.02(2)Ǻ] and a PPh3 ligand [Au-P 2.276(5), 2.282(4)Ǻ]; a weak Au…Au interaction [3.379(1)Ǻ] holds the two independent molecules in a nearly orthogonal arrangement. Crystals are monoclinic, space group P21/c, with a 12.431(4), b 21.439(4), c 16.366(5)Ǻ, β 96.36(3)°, Z 8; 1750 independent data with I ≥ 2.5σ(I) were refined to R 0.033, Rw 0.035.