The first intramolecularly co-ordinated aryl tantalum compounds with amine donors: synthesis and X-ray crystal structure of [Ta{C6H4CH(R)NMe2-2}(CH2Ph)2Cl2](R = H, Me)

Abstract

[Ta(CH₂Ph)₂Cl₃] reacts with [Zn{C₆H₄CH(R)NMe₂-2}₂](R = H, Me) to afford the new tantalum(V) complexes [Ta{C₆H₄CH(R)NMe₂-2}(CH₂Ph)₂Cl₂] in high yield; these complexes contain a five-membered [graphic omitted] chelate ring, in both the solid state and in solution, through intramolecular co-ordination of a trialkylamine ligand.