Preparation of an enantiomerically pure helical nickel(II) complex using anew chiral tetradentate ligand derived from an industrial waste material

A new tetradentate ligand (all-R)-1,2-bis(2-aza-3-carboxybicyclo[3.3.0]octa n-2-yl)ethane (H(2)baboc) derived from an industrial waste material has bee n used as an asymmetric complexing agent for the transition metal nickel(II ). The enantiomerically pure complex [Ni(baboc)(H2O)]. H2O has been prepare d and its crystal structure has been determined by X-ray diffraction. Accor ding to the tau criterion the pentagonal co-ordination sphere for Ni-II is identified as square pyramidal.