Titanium imido complexes with 1,3,5-triazacyclohexane ligands: syntheses, solution dynamics and solid state structures
Abstract
The multi-gram scale syntheses of the first 1,3,5-triazacyclohexane imido complexes [Ti(NR)(R3′tach)Cl2] (R=But, C6H3Pr2i-2,6; R′=Me, But) are described together with the X-ray structures of [Ti(NBut)(Me3tach)Cl2] and [Ti(NBut)(Bu3ttach)Cl2]; the complexes of Me3tach exhibit dynamic NMR behaviour ia an unusual trigonal twist of the facially coordinated Me3tach ligand (Me3tach and Bu3ttach=1,3,5-trimethyl- and tri-tert-butyl-1,3,5-triazacyclohexane, respectively).