Earlier work has shown that reaction of the primary silanes, ethylsilane, butylsilane, cyclopentylsilane, phenylsilane, n-hexylsilane, and n-octylsilane with [Pt2(�-CO)(CO)2(�-dppm)2] (dppm = Ph2PCH2PPh2) in a 1:1 mole ratio in toluene generated zerovalent silylene bridged platinum complexes of the form [Pt2(�-SiRH)(CO)2(�-dppm)2] (R= ethyl, butyl, cyclopentyl, phenyl, n-hexyl and n-octyl) in high yields. The yellow complexes were characterized by 1H, 31P{1H}, 195Pt{1H}, 29Si {1H} NMR and IR spectroscopy. [Pt2(�-SiRH)(CO)2(�-dppm)2] was formulated as a W-frame complex having an AA'BB'XX' spin system. When the same platinum(0) dimer, [Pt2(�-CO)(CO)2(�-dppm)2], was reacted with disilanes (1,3 disilabutane, 1,4 disilabutane, and 1,10 disiladecane), it is believed that similar W-frame silylene complexes are produced. The solution structures of these complexes were assessed by multinuclear NMR techniques.Reaction of the disilanes with a different platinum dimer, [Pt2(�-dppm)3], was investigated. Spectral data and tentative structures of the resulting complexes will be presented.

Activation of disilanes by platinum dimers

239th National Meeting (2010)

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