Cis Di-oxomolybdenum(VI) Complexes with a Tridentate ONO Donor Ligand; Synthesis, X-ray Crystal Structure, Spectroscopic Properties and Oxotransfer Chemistry
The molybdenum complexes of Schiff base ligands viz. [MoO2LH2O] where L1 = tris(hydroxymethyl)(salicylide-neamino)methane, L2 = tris(hydroxymethyl)(2,3-dihydroxybenzylideneamino)methane and L3 = tris(hydroxymethyl)(2,3,4-trihydroxybenzylideneamino)methane have been synthesized and characterized by spectroscopic and electrochemical techniques. The X-ray crystal structure of the complex [MoO2L1H2O] reveals a distorted octahedral geometry with one ligand and a water molecule coordinated to the MoO2 center. No previous complex of this type contains a coordinated water molecule. The complex undergoes an oxotransfer in the presence of Bu3P to form a -oxobridged molybdenum(V,V) dimer. This rules out Mo—S coordination as a prerequisite for oxotransfer in such molybdenum(VI) complexes.
U. Sandbhor et al., "Cis Di-oxomolybdenum(VI) Complexes with a Tridentate ONO Donor Ligand; Synthesis, X-ray Crystal Structure, Spectroscopic Properties and Oxotransfer Chemistry," Transition Metal Chemistry, Springer Verlag, Sep 2002.
The definitive version is available at http://dx.doi.org/10.1023/A:1019839308548
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