Uranium complex, binuclear

Diorgano ditellurium compounds react with transition metal salts and carbonyl complexes to form coordination compounds (Table 5, p. 283). Complexes with the following transition metals have been reported Ti, Cr, Mo, W, Mn, Re, Fe, Ir, Ni, Pd, Pt, Cu, Ag, Cd, Hg, Yb, and U. In many of these complexes, the organyltelluro group bridges the metal atoms in binuclear complexes. The Te —Te bond seems to remain intact upon complexation to mercury halides, rhenium carbonyls, and uranium pentachloride. For details on tellurolatO bridged complexes see p. 212. Complexes with SnCl are also known. Diphenyl ditellurium and bis[4-ethoxyphenyl] ditellurium formed charge-transfer complexes when equimolar amounts of the ditellurium compound and tetracyano-p-quinodime-thane were refluxed in acetonitrile. ... 

Joining cyclopentadiei l ligands to form chelating ligands ((76), (77)) offers a potential means to open an actinide co-ordination sphere and to prevent ligand redistribution processes. In the case of ligands (76), a variety of binuclear uranium halo complexes have been prepared [12, 116, 117] ... 

Dicyciopentadienyl uranium bis(diethylamide) reacts with metal carbonyl hydrides to give isocarbonyl-bridged binuclear complexes (Marks and Ernst 1982) such as for example Cp2U[(H-OC)MoCp(CO)2]2. 

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