190660-98-1Relevant academic research and scientific papers
Half-sandwich hydrazido(2-) complexes of niobium
Green, Malcolm L. H.,James, J. Thomas,Saunders, John F.,Souter, Joanne
, p. 1281 - 1288 (1997)
The compounds [Nb(η-C5H4R)Cl2(NNMeR′)] (R = H or Me, R′ = Me or Ph), [Nb(η-C5H4R)(OBut)2(NNMe 2)] (R = H or Me), [Nb(η-C5H4Me)Br(OBut)(NNMe2)], [Nb(η-C5H5)(NMe2)2(NNMe 2)], [Nb(η-C5H4R)-(CH2CMe2Ph) 2(NNMe2)] (R = H or Me), [Nb(η-CH5)(CH2SiM3)2(NNMe 2)], cis-[Nb(η-C5H5)Cl2(NNMe2)], cis-[Nb(η-C5H4R)Cl2(NNMe 2)(PMe3)] (R = H or Me), trans-[Nb(η-C5H4R)Cl(NNMe2)(PMe 3)2]Cl (R = H or Me) and trans-[Nb(η-C5H5)Cl(NNMe2)(PMe 3)2][PF6] have been prepared and characterised. A structure determination of [Nb(η-C5H5)Cl2(NNMe2)] showed it to be a dimer with one hydrazide ligand acting as monodentate to one metal centre and a second hydrazide bridging both metal centres in a μ-η2 fashion. The structure of [Nb(η-C5H5)Cl2(NNMe 2){P(OMe)3}] shows a cis disposition of the hydrazide and phosphite ligands.
