Organometallic cluster compounds

Use the Wade-Mingos-Lauhrer rules to determine the probable structure type of each of the following organometallic cluster compounds ... 

Stripping of the ligands of organometallic cluster compounds by thermolysis [1] or (laser) photolysis [2, 3] may produce the respective monosized (naked) metal clusters, if these highly reactive species can be prevented from aggregation by, e.g., attachment to isolated... 

Decomposition of Organometallic Cluster Compounds Ion Exchange of Zeolites. 

Synthesis, structure and properties of some organometallic sulfur cluster compounds. P. J. Verga-mini and G. J. Kubas, Prog. Inorg. Chem., 1976, 21, 261-282 (40). 

A review28 describes compounds of the Pt-group metals including halide, oxide, sulfide, coordination compounds, organometallic compounds, and metal cluster compounds. 

Properties of Some Organometallic Sulfur Cluster Compounds Vermeulen, Lori A., Layered Metal Phosphonates as Potential Materials for the 21 261... 

Pierce-Smith converter, 16 145 Piezochromic materials, 6 606-614 22 708t coordination compounds and metal cluster compounds, 6 610-611 organic molecules in crystals and polymer films, 6 607-610 organometallic complexes of Cu(II),... 

Perrhenate and related building blocks are constituents of several cluster compounds where they act as terminal groups in organometallic rhenium oxides such as in [(cp Re)3(//2-0)3(/U3-0)3Re03]+ (49)21 Qj. jjj heterometallic clusters such as the structurally related [(Re)3(//f dppm)3(/u -0)3Re03]+ (dppm = bis(diphenylphosphino)methane) and Pt4 P(C6H 11)3)4 (//-C0)2(Re04)2]. A series of platinum-rhenium and platinum-rhenium-mercury clusters with Pt-Re multiple bonds has been isolated from reactions of Pt3 precursors with Rc207 or perrhenate. " ... 

A nonstandard synthesis of the first uranium cluster containing an isopolyoxo-metalate core was reported recently [310b], Reduction of [Cp UCl2] (Cp7 — 1,2,4-/-Bu3C5H2) with two equivalents of KC8 in THF, followed by an addition of two equivalents of pyridine N-oxide, was conducted in an attempt to produce the organometallic dioxo species [Cp7U02]. However, the cluster compound [Cp (bipy)2][U6013] was isolated instead as the main product (54% yield) from this reaction. 

Mass spectrometry has been an extremely useful tool for the characterization of neutral organometallic clusters, except for those few cases which have extremely high molecular weights or possess such ligands as PPh3 that reduce the volatility of the compound. Mass spectrometry has not been a useful characterization technique for ionic clusters because these compounds are insufficiently volatile to permit study by conventional electron-impact techniques. However, there is some hope that with the development of field-desorption techniques ionic clusters as well as neutrals will be capable of being analyzed by mass spectrometry (146). 

---