Reaction of Diphenylgermane with (Ph3P)2Pt(η2-C2H4):  Generation of Mono- and Dinuclear Complexes Containing Pt−Ge Bonds. X-ray Crystal Structure Determination of [(Ph3P)Pt(μ-η2-H-GePh2)]2

The reaction of diphenylgermane (Ph 2 GeH 2 ) with (Ph 3 P) 2 Pt(η 2 -C 2 H 4 ) provided both mononuclear (Ph 3 P) 2 Pt(H)(GePh 2 H) and dinuclear [(Ph 3 P)Pt(μ-η 2 -H-GePh 2 )] 2  complexes. The structure of the dinuclear complex was determined by X-ray crystallography. The dinuclear complex could also be obtained from an unusual exchange reaction involving the unsymmetrical dinuclear complex [(Ph 3 P) 2 (H)Pt(μ-SiR 2 )(μ-η 2 -H-SiR 2 )Pt(PPh 3 )] (SiR 2  = SiC 20 H 24 ) with Ph 2 GeH 2 .