Bis(acesulfamato-kappa O-4)diaquabis(3-methylpyridine-kappa N)nickel(II)

Abstract

In the crystal structure of the title compound [ systematic name: diaquabis(6-methyl-2,2-dioxo-1,2,3-oxathiazin-4-olato-kappa O-4)bis(3-methylpyridine-kappa N)nickel(II)], [Ni(C4H4NO4S)(2)(C6H7N)(2)(H2O)(2)], the Ni-II centre resides on a centre of symmetry and has a distorted octahedral geometry. The basal plane is formed by two carbonyl O atoms of two monodentate trans-oriented acesulfamate ligands and two trans aqua ligands. The axial positions in the octahedron are occupied by two N atoms of two trans pyridine ligands. Molecules are stacked in columns running along the a axis. There are pi-pi stacking interactions between the molecules in each column, with a distance of 3.623 (2) angstrom between the centroids of the pyridine rings. There are also O-H center dot center dot center dot O interactions between the columns.