Crystal structure of chlorido[diphenyl(thiophen-2-yl)phosphine-κP]gold(I)

Abstract

The crystal structure of the title compound, [AuCl(C16H13PS)], is reported. The molecular 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 phosphorus atom of the ligand is a slightly distorted tetrahedron. The phenyl and thienyl rings of the ligand are extensively disordered, with the thienyl refined over all three possible positions on the phosphorus 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). Intermolecular C—H...π interactions present in the crystal lattice link molecules of the title compound together to form a complex three-dimensional network.

Keywords

• crystal structure
• gold complex
• triaryl phosphine ligand
• c—h...π interaction
• disorder