Acta Cryst. (2009). E65, m32-m33  [ doi:10.1107/S160053680804110X ]

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

P. Lian, Q.-S. Hu, Y.-R. Xie and H.-X. Guo

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-HO and N-HO and intermolecular O-HO, N-HO, O-HCl and C-HCl hydrogen bonds are observed.

Online 10 December 2008

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