Synthesis and Spectroscopic Properties of Dihydrogen Isocyanide Niobocene [Nb(η~5-C_5H_4SiMe_3)_2(η~2-H_2)(CNR)]+ Complexes. Experimental and Theoretical Study of the Blocked Rotation of a Coordinated Dihydrogen

摘要

Synthesis of stable hydride isocyanide derivatives [Nb(η~5-C_5H_4SiMe_3)_2(H)(CNR) has been achieved through the formation of coordinatively unsaturated 16-electron species [Nb(η~5-C_5H_4SiMe_3)_2H by thermolytic loss of H_2 followed by the coordination of an isocyanide ligand.