Platinum complexes triangular clusters

Heterometallic metallomesogens, liquid crystals, 12, 223—224 Heterometallic polynuclear platinum carbonyl complexes heterodinuclear clusters, 8, 415 triangular clusters, 8, 417... 

Catalytic Activity of Pt4 Clusters towEird the Hydration of Acetonitrile Trinuclear Platinum(II) Cluster Complexes A. Synthesis—Cluster Core Transformation Structures of Triangular Cluster Complexes Mechanism of the Cluster Core Transformation Reaction from Square-Planar to Triangular Type EHMO Study Solution Behavior 195pt NMR Spectra of Pts Clusters IV. Concluding Remarks References... 

Figure 1. Some examples of complexes containing donor-acceptor Pt —> M bonds. In la tlie tliree Pt atoms of each Pt3 triangular cluster aet as a donor atom in lb, only one Pt atom is acting as donor and the Pt-Ag bond is supported by a bridging ligand finally, in Ic and Id, the responsible for the Pt-M bonds seem to be not only the platinum center, but also the Pt-H or Pt-P bonds respectively.

The Pt2Ru4(CO)i8 cluster reacts with H2 to form Pt3Ru6(CO)2i(/i3-H)-(jt-H)3 in which the platinum and ruthenium atoms are arranged in triangular layers of the pure elements.10 This complex can be converted to Pt3Ru6(CO)20(/i3-C2Ph2X/i-H)2 by reaction with diphenylacetylene.10 The latter complex was found to be an active catalyst for the hydrogenation... 

A triangular triosmium-platinum cluster complex [Os3Pt(/r-H)(/r4-f/ -C = CPh)(CO)io(PCy3)] (349) has been synthesised by the treatment of the unsaturated [Os3Pt(/r-H)2(CO)io(PCy3)] (348) with [LiC=CPh] followed by protonation. 

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