Structural properties of trans-cyclohexane-1,2-diamine complexes of copper(II) and zinc(II) acesulfamates.

The title compounds, trans-bis(trans-cyclohexane-1,2-diamine)bis(6-methyl-2,2,4-trioxo-3,4-dihydro-1,2,3-oxathiazin-3-ido)copper(II), [Cu(C(4)H(4)NO(4)S)(2)(C(6)H(14)N(2))(2)], (I), and trans-diaquabis(cyclohexane-1,2-diamine)zinc(II) 6-methyl-2,2,4-trioxo-3,4-dihydro-1,2,3-oxathiazin-3-ide dihydrate, Zn(C(6)H(14)N(2))(2)(H(2)O)(2)(2)·2H(2)O, (II), are two-dimensional hydrogen-bonded supramolecular complexes. In (I), the Cu(II) ion resides on a centre of symmetry in a neutral complex, in a tetragonally distorted octahedral coordination environment comprising four amine N atoms from cyclohexane-1,2-diamine ligands and two N atoms of two acesulfamate ligands. Intermolecular N-H...O and C-H...O hydrogen bonds produce R(2)(2)(12) motif rings which lead to two-dimensional polymeric networks. In contrast, the Zn(II) ion in (II) resides on a centre of symmetry in a complex dication with a less distorted octahedral coordination environment comprising four amine N atoms from cyclohexane-1,2-diamine ligands and two O atoms from aqua ligands. In (II), an extensive two-dimensional network of N-H...O, O-H...O and C-H...O hydrogen bonds includes R(2)(1)(6) and R(4)(4)(16) motif rings.