| Abstract
| - Phosphino alkylsilanes in which Si is connected to Pthrough a benzylic framework have been synthesized and used asprecursors to chelate ligand systems which attach to transition metalcenters through a silicon−metal bond supported by one, two, or threeintramolecular phosphorus−metal bonds. The resultingstereochemistry around Ir(III) in IrH(mctriPSi)Cl(7), in which quadridentate coordination of the mctriPSiligand cage leads to occupation of four adjacent octahedral sites withH trans to P and Cl trans to Si, is assigned using multinuclear NMRspectroscopy.
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