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Acta Cryst. (2014). C70, 338-341  [ doi:10.1107/S2053229614004379 ]

1,1'-Diethyl-4,4'-bi­pyridine-1,1'-di­ium bis­(1,1,3,3-tetra­cyano-2-eth­oxy­pro­penide): multiple C-H...N hydrogen bonds form a complex sheet structure

Z. Setifi, F. Lehchili, F. Setifi, A. Beghidja, S. W. Ng and C. Glidewell

Synopsis: A bipyridinediium propenide salt forms complex hydrogen-bonded sheets in which each cation acts as a sixfold donor of C-H...N hydrogen bonds and each anion acts as a threefold acceptor.

Formula: C14H18N22+·2C9H5N4O-

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