Bis(dihydrogen phosphato-O)[(1RS,4RS,8SR,11SR)-1,4,8,11-tetraazacyclotetradecane-kappa N-4]nickel(II) monohydrate

The Ni-II ion in the title compound, [Ni(H2PO4)(2)- (C10H24N4)]. H2O, is si x-coordinate in a distorted square-bipyramidal environment. Four N atoms fr om the tetraaza-macrocycle are in a square-planar arrangement [average Ni-N distance = 2.071 (2) Angstrom] and two O atoms, one from each dihydrogen p hosphate ion, are axial [average Ni-O distance = 2.144 (2) Angstrom]. The s tructure of the title complex forms a three-dimensional framework, which de limits intersecting b-axis and c-axis tunnels. Two types of hydrogen bonds, O-H ... O and N-H ... O, ensure the cohesion and stability of the molecula r packing.