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Zwitterionic, Ring-Borylated Vanadium(III) Complexes from [Cp 2VCO] and B(C6F5)3
Choukroun, Robert,Lorber, Christian,Donnadieu, Bruno
, p. 1434 - 1437 (2008/10/09)
The reaction of the vanadium(II) carbonyl [Cp2V(CO)] and B(C6F5)3 resulted in formation of zwitterionic, ring-borylated vanadium(III) complexes [(Cp)(C5H4B)C 6F5)3V] (3) and [(Cp)(C5H 4B(C6F5)3)V(CO)2] (4) and of the salt [Cp2V(CO)2] [HB(C6F 5)3] (5). All were characterized by crystallography. Formation of a hydride vanadium(IV) [(Cp)C5H4B(C 6F5)3VH(CO)] obtained by the electrophilic addition of the borane at the Cp-ring followed by redox and disproportionation reaction is suggested to account for these results.
