Group 4 complexes of amine bis(phenolate)s and their application for the ring opening polymerisation of cyclic estersThis paper is dedicated to the memory of Professor Ian Rothwell whose outstanding contributions to the chemical community will be sadly missed.Electronic supplementary information (ESI) available: Full details of experimental procedures, analytical data and X-ray structural determinations. See DOI: 10.1039/b513345a

A series of amine bis(phenolate) ligand precursors and their group 4 metal complexes have been prepared, characterised by single-crystal X-ray diffraction, and tested for ring opening polymerisation of -caprolactone.