Vanadium(III) complexes incorporating the silylamino(disilylamido) ligand [(Me3Si)N{CH2CH2N(SiMe3)}2]2– [N{N″}2]2–. Synthesis and crystal structure of the dimeric, non-metallocene vanadium(III) hydride [{V(N{N″}2)}2(µ-H)2]

Abstract

Three vanadium(III) complexes incorporating the chelating silylamino(disilylamido) ligand [(Me₃Si)N{CH₂CH₂N(SiMe₃)}₂]^2– ([N{N″}₂]^2–) have been reported. Addition of Li₂[N{N″}₂] to VCl₃·3THF cleanly yielded the vanadium(III) chloride [{V(N{N″}₂)Cl}₂] 1, from which the vanadium(III) hydrocarbyl [V(N{N″}₂){CH(SiMe₃)₂}] 2 could be generated by means of salt metathesis. Hydrogenolysis of 2 under dihydrogen produced the thermally stable, dimeric vanadium(III) hydride [{V(N{N″}₂)}₂(µ-H)₂] 3. The solid state structure of 3 was determined.