Dalton communications. Exchange of organoimido groups at a mononuclear titanium centre and a crystallographic evaluation of the relative structural influences of the NBut, NC6H4Me-4 and NC6H4NO2-4 ligands
Abstract
The tert-butylimido complex [Ti(NBut)Cl2(py)3]1a(py = pyridine) undergoes exchange reactions of the NBut ligand with arylamines RNH2 to form the arylimido derivatives [Ti(NR)Cl2(py)3](R = C6H4Me-4 1b, C6H4NO2-4 1c or C6H3Me2-2,6 1d); comparison of the crystal structures of 1a–1c gave a direct evaluation of N-substituent effects in d0, six-co-ordinated organoimido complexes.