Synthese und Kristallstruktur von [WCl3(N 3S2)(Pyridin)] / Synthesis and Crystal Structure of [WCl3(N3S2)(Pyridine)]

[WCl3(N3S2)(pyridine)] was obtained by the reaction of a mixture of S5N5[WCl4(N3S2)] and S4N3[WCl4(N3S2)] with pyridine in dichloromethane. It forms brown, moisture-sensitive crystal plates and was characterized by its IR spectrum and an X-ray crystal structure determination (1404 ob­served reflexions. R = 0.052). Crystal data: ortho­rhombic, space group Pbca. Z = 8, a = 708.3, b = 1275.4, c = 2628.6 pm. The tungsten atom has a distorted octahedral coordination and is part of a planar WN3S2 ring with WN bond lengths of 176 and 186 pm. The pyridine ligand (W−N 232 pm) is in trans position to the shorter WN bond.