Acta Cryst. (2013). E69, m62
[ doi:10.1107/S1600536812050738 ]

Poly[(₄-3-carboxypyrazine-2-carboxylato)(₄-nitrato)dilithium]

W. Starosta and J. Leciejewicz

Abstract: In the title compound, [Li₂(C₆H₃N₂O₄)₂(NO₃)]_n, the two symmetry-independent Li^I ions are each in a trigonal-bipyramidal coordination and are bridged by N,O-bonding ligands, forming molecular ribbons propagating in [010]. Each Li^I ion is also coordinated by two O atoms from nitrate ions, connecting the ribbons into a three-dimensional network. Very strong intramolecular O-HO hydrogen bonds occur between the carboxyl and the carboxylate group.

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