Aryl-imido niobium complexes with chloro-silyl and aryl-η-amidosilyl cyclopentadienyl ligands: X-ray structure of the constrained-geometry compound [Nb(η5-C5H4SiMe2-η1-NAr)(NAr)Cl] (Ar = 2,6-Me2C6H3)

Aryl imido niobium compounds with chloro-silyl cyclopentadienyl ligands react with H2O and LiNHAr giving dinuclear compounds with Si-O-Si bridges and mononuclear constrained geometry compounds, respectively.