Preparative, structural, and electrochemical investigations on peralkylated niobocene dichlorides and difluorides

URN to cite this document:: urn:nbn:de:bvb:355-epub-230179
DOI to cite this document:: 10.5283/epub.23017

Brunner, Henri ; Gehart, G. ; Meier, Walter ; Wachter, Joachim ; Riedel, Astrid ; Elkrami, S. ; Mugnier, Y. ; Nuber, B.

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Date of publication of this fulltext: 03 Jan 2012 08:34

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Abstract

CP(dagger)2NbCl2 (CP(dagger) = 175-C5Me4Et) (1b) was synthesized from NbCl5 and a slight excess of Cp(dagger)Li and NaBH4. Its electrochemical (2 e-, E1/2 = -1.6 V) and chemical reduction (2 equiv of Na/Hg) was studied showing that peralkylation of the Cp ligand facilitates two-electron reduction compared to less substituted CP2NbHal2 derivatives. The reduced solutions of CP*2NbCl2 (CP* = C5Me5) ...