Synthesis and characterization of a dinuclear platinum complex with silsesquioxanate ligand

The first dinuclear platinum complex with a silsesquioxanate ligand {[Pt(Ph)(PEt3)2]2O11Si7(c-C5H9)7(OH)} was synthesized by reaction of incompletely condensed silsesquioxane, (c-C5H9)7Si7O9(OH)3 with trans-PtI(Ph)(PEt3)2. Multinuclear (1H, 13C, 29Si, and 31P) NMR data clearly show two unequivalent platinum moieties (Pt(Ph)(PEt3)2) bridged by bulky silsesquioxanate ligand. DFT calculations were performed to analyse the molecular structure and NMR properties of the new platinum complex.

Graphical abstractThe first dinuclear platinum complex containing a (μ-O,O)-bridging silsesquioxanate ligand was synthesized. The molecular structure was proposed by DFT calculations and NMR study.Figure optionsDownload full-size imageDownload as PowerPoint slide