Crystal structure of chlorido-[diphen-yl(thio-phen-2-yl)phosphine-κ P]gold(I)

Acta Crystallogr E Crystallogr Commun. 2022 Sep 26;78(Pt 10):1044-1047. doi: 10.1107/S2056989022009227. eCollection 2022 Oct 1.

Abstract

The crystal structure of the title compound, [AuCl(C16H13PS)], is reported. The mol-ecular structure features a nearly linear arrangement of the chloride and phosphino ligands around the gold(I) center, with a P-Au-Cl bond angle of 179.42 (9)°. The Au-P and Au-Cl bond lengths are 2.226 (2) and 2.287 (2) Å, respectively. The geometry of the groups bonded to the phospho-rus atom of the ligand is a slightly distorted tetra-hedron. The phenyl and thienyl rings of the ligand are extensively disordered, with the thienyl refined over all three possible positions on the phospho-rus atom. The relative occupancy ratio between these positions was found to be 0.406 (3):0.406 (2):0.188 (2). One of the major thienyl ring positions with the relative occupancy of 0.406 was modeled as two rotational isomers around the C-P bond with a relative occupancy ratio of 0.278 (3):0.128 (3). Inter-molecular C-H⋯π inter-actions present in the crystal lattice link mol-ecules of the title compound together to form a complex three-dimensional network.

Keywords: C—H⋯π inter­action; crystal structure; disorder; gold complex; triaryl phosphine ligand.

Grants and funding

Funding for this research was provided by: GVSU Office of Undergraduate Research (grant No. MS3 to A. LaDuca).