Darstellung und Eigenschaften der tert-Butyliminovanadium(V)-Verbindungen tC4H9N =VX3 (X = Br, OR)

Abstract

Abstract tC4H9N = VBr3 has been prepared by reaction of the trichloride with hydrogen bromide dissolved in benzene. The structure of the 2.2'-dipyridyl complex [tC4H9N = VBr3 · C10H8N2] has been found to be octahedral with meridional arrangement of bromide. Syntheses of iC3H7N = V(OR)3 and iC3H7N = V(OR)3 are described. The properties of these compounds are studied by chemical reactions such as redistribution, transamination and alcoholysis. The 51V NM R spectra of the alkyliminovanadium(V) compounds are discussed; the constants of 51V , 14N coupling have been determined. The oxovanadium (V) complex [VO (OCH3)3-V O(OCH3)2Cl] has been prepared; all attempts to prepare VO(OCH3)2Cl have not been successful.