ic0511874_si_002.cif (53.37 kB)

Cationic Five-Coordinate PtII Complexes as Donors in the Formation of Pt→Ag Dative Bonds

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posted on 14.11.2005, 00:00 by Daron E. Janzen, Larry F. Mehne, Donald G. VanDerveer, Gregory J. Grant
A unique trinuclear cluster containing two short Pt→Ag dative bonds was prepared and characterized crystallographically. Two monocationic orthometalated PtII complexes containing 2-phenylpyridine and the tridentate ligand 9S3 (1,4,7-trithiacyclononane) exhibit axial sulfur interactions with Pt as well as short dative bonds. The Pt→Ag dative bonding results in a dramatic shortening of the axial Pt−S distance in each Pt complex cation, relative to the mononuclear Pt complex. Evidence for Pt−Ag interactions in solution is also presented.