The First Disulfur and Diselenium Complexes of Platinum: Syntheses and Crystal Structures

Rings with platinum: The first platinum disulfur and diselenium complexes have been synthesized by taking advantage of new phosphane ligands bearing an extremely bulky substituent (see structure). The molecular structures of the disulfur and diselenium complexes are very similar, and these complexes, as well as an analogous dioxygen complex [(PPh3)2PtO2], have a square-planar geometry and a three-membered PtE2 (E=S, Se) ring.