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Abstract
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The title compound, 2C4H12N2 2+C10H2O8 46H2O 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— H O, N—H O and C—H O 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.
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