New tetradentate Schiff bases, their oxovanadium(IV) complexes, and some complexes of bidentate Schiff bases with vanadium(III)
作者:Nosheen Choudhary、David L. Hughes、Uwe Kleinkes、Leslie F. Larkworthy、G.Jeffery Leigh、Michael Maiwald、Celine J. Marmion、J.Roger Sanders、Gallenius W. Smith、Claas Sudbrake
DOI:10.1016/s0277-5387(96)00436-6
日期:1997.1
Abstract New vanadyl(IV) complexes of tetradentate Schiff-base dianions containing one, two or three carbon atoms between the two iminato-nitrogen atoms are described. The compounds are either mononuclear or polymeric, as shown by the value of v(V=O), and depending upon the Schiff-base dianion. There is no evidence for electron delocalization along the polymeric chains. Some vanadium(III) complexes
The application of V(V) catalysts in oxidation of sulfides with peroxides offers an efficient procedure, that is compatible with different functional groups, and leads to good yields and selectivities. However, the understanding of the factorsaffecting the reactivity of different catalysts is still far to be complete. An experimental and theoretical study on a series of V(V) complexes containing variously