The selective reactions of niobium pentachloride with two bulky NHC carbenes afforded NbCl5(NHC) complexes, bearing the highest oxidation state ever found for a metal centre in a transition metal halide–NHC adduct. The X-ray structure of 2a is the first one reported for a monodentate NHC–niobium species, and exhibits an abnormally long Nb–C bond.
A structurally-characterized NbCl5-NHC adduct
MARCHETTI, FABIO;PAMPALONI, GUIDO;
2014-01-01
Abstract
The selective reactions of niobium pentachloride with two bulky NHC carbenes afforded NbCl5(NHC) complexes, bearing the highest oxidation state ever found for a metal centre in a transition metal halide–NHC adduct. The X-ray structure of 2a is the first one reported for a monodentate NHC–niobium species, and exhibits an abnormally long Nb–C bond.File in questo prodotto:
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