Multiple C-H bond activation.: Threefold-deprotonated 6-phenyl-2,2′-bipyridine as a bridging ligand in dinuclear platinum(II) derivatives

Unusual platinum(II) trimetalated derivatives have been synthesized and characterized by reaction of cis-[Pt(R)(2)(DMSO)(2)] (R = Me, Ph) and 6-phenyl-2,2'-bipyridine. The behavior of the substituted 2,2'-bipyridine as a threefold-deprotonated ligand is unprecedented.