Preparation, X-Ray Crystal-Structure and Properties of Pentacarbonyl-(Pyridinium-2-Thiolate)Tungsten(0)

Abstract

The title complex is prepared either photochemically from pyridine-2-thiol and W(CO)₆ or thermally from WBr₂(CO)₄. The molecular structure of this air-stable, diamagnetic compound shows an octahedral environment for the metal. The ligand is sulfur-bound only and the pyridine nitrogen is protonated. Crystals are monoclinic, space group P2₁/c with a 722.8(1), b 1375.5(4), c 1306.7(2) pm, β 98.815(5)° V 1.2839(5)×10⁹ pm³ and Z 4; 2294 data were refined to R 0.026, R_w 0.032.