Gold Thione Complexes

Abstract

The reaction of the ligand Et4todit (4,5,6,7-Tetrathiocino-[1,2-b:3,4-b']- diimidazolyl-1,3,8,10-tetraethyl-2,9-dithione) with gold complexes leads to the dinuclear gold(I) complexes [{Au(C6F5)}2(Et4todit)] and [Au(Et4todit)]2(OTf)2, which do not contain any gold-gold interactions, or to the gold(III) derivative [{Au(C6F5)3}2(Et4todit)]. The crystal structures have been established by X-ray diffraction studies and show that the gold centers coordinate to the sulfur atoms of the imidazoline-2-thione groups

A square-planar hydrated cationic tetrakis(methimazole)gold(III) complex

“…The Au1-S bond distances (Table 2) are similar to those reported previously for the 1-methyl-1,2,3,4-tetrazole-5-thiolate (Abram et al, 1998;Noth et al, 1998;Lang et al, 1999) and pentafluorobenzenethiolate complexes (Watase et al, 2003;Bachman et al, 2008). The distances are very similar to recently reported gold(III) thione complexes with analogous diethylmethimazole ligands (Caddeo et al, 2014). The S-C bond distances of 1.728 (7) and 1.724 (7) Å are slightly shorter than the thiole distances reported by Watase of 1.770 Å and by Lang of 1.736 Å , as well as the thione distances reported by Caddeo of 1.729 Å .…”

Luminescent gold–thallium derivatives with a pyridine-containing 12-membered aza-thioether macrocycle

“…The two gold(I) centres present an almost linear geometry [C1-Au1-S1 = 175.56( 16), C11-Au2-S3 = 177.70( 16)°] with Au-S bond distances [2.3131( 13), 2.3134( 14) Å] in good agreement with those reported in the literature. 45 In the crystal lattice, Au⋯Au intermolecular interactions of 3.393 Å between neighbouring complex units stabilised by π⋯π interactions of 3.613 Å between the corresponding slightly offset pentafluorophenyl rings determine the formation of polymeric chains running along the [101] direction (Fig. 3).…”

Frontiers in Gold Chemistry

“…Vito Lippolis from Università degli Studi di Cagliari, Spain, and M. Concepción Gimeno from Universidad de Zaragoza, Spain, synthesized dinuclear gold(I) complexes which were isolated and characterized using X-ray crystallography from the reaction of a dithione ligand with gold complexes [16]. They studied the coordination properties of thione ligands toward gold(I) and gold(III) complexes.…”