cis-(nitrato-O,O ')[(1RS,4SR,5SR,8RS,11SR,12SR)-C-rac-1,5,8,12-tetramethyl-1,4,8,11-tetraazacyclotetradecane-kappa N-4]nickel(II) nitrate

The crystal structure of the title compound, [Ni(NO3)(C14H32N4)]NO3, was de termined by X-ray diffraction. The Ni-II ion is six-coordinate in a distort ed octahedral arrangement, with the tetradentate macrocyclic ligand in a fo lded conformation. The two five-membered rings of the macrocyclic ligand ha ve skew conformations, while the two six-membered rings adopt chair conform ations. The four chiral N-atom centers are 1RS, 4SR, 8RS and 11SR, and the chiral C-atom centers are 5SR and 12SR.