trans-N,N,N′,N′-Tetrakis(carboxymethyl)cyclohexane-1,2-diammonium tetrachloridocadmium(II) tetrahydrate

Abstract

In the title compound, (C14H24N2O8)[CdCl4]·4H2O, the Cd atom in the tetrahedral [CdCl4]2− anion lies on a twofold rotation axis, and the diprotonated organic molecule, trans-N,N,N′,N′-tetrakis(carboxymethyl)cyclohexane-1,2-diammonium, has 2 symmetry with the twofold rotation axis running through the mid-point of two C—C bonds in the cyclohexane unit. In the crystal structure, classical intramolecular O—H...O and N—H...O and intermolecular O—H...O, N—H...O, O—H...Cl and C—H...Cl hydrogen bonds are observed.