Acta Cryst. (2008). E64, o740  [ doi:10.1107/S1600536808007332 ]

Bis(piperazinediium) benzene-1,2,4,5-tetracarboxylate hexahydrate

H. Aghabozorg, F. Manteghi and M. Ghadermazi

Abstract: The title compound, 2C₄H₁₂N₂²⁺·C₁₀H₂O₈^4-·6H₂O or (pipzH₂)₂(btc)·6H₂O, was formed from the reaction between benzene-1,2,4,5-tetracarboxylic acid (btcH₄) as a proton donor and piperazine (pipz) as a proton acceptor. A variety of O-HO, N-HO and C-HO hydrogen bonds, as well as C-H interactions, are present in the crystal structure. Two water O atoms are each disordered over two positions; for both the site occupany factors are ca 0.66 and 0.34.

Online 29 March 2008

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