Acta Cryst. (2004). C60, o740-o743  [ doi:10.1107/S010827010401786X ]

Two N,N-dimethylbiguanidium salts displaying double hydrogen bonds to the counter-ions

L.-P. Lu, H.-M. Zhang, S.-S. Feng and M.-L. Zhu

Formula: C₄H₁₃N₅²⁺·C₂O₄^2-·H₂O and C₄H₁₃N₅²⁺·SO₄^2-·H₂O

Online 18 September 2004

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