Tombul, MustafaGuven, Kutalmis2020-06-252020-06-252009Tombul, M., & Guven, K. (2009). Poly[μ-aqua-diaqua-(μ(2)-pyrazine-2,3-dicarboxyl-ato)dilithium(I)]. Acta crystallographica. Section E, Structure reports online, 65(Pt 12), m1704–m1705.1600-5368https://doi.org/10.1107/S1600536809050570https://hdl.handle.net/20.500.12587/4316The asymmetric unit of the title compound, [Li-2(C6H2N2O4)(H2O)(3)](n), consists of two independent Li+ cations, one pyrazine-2,3-dicarboxylate dianion and three water molecules. One of the Li+ cations has a distorted tetrahedral geometry, coordinated by one of the carboxylate O atoms of the pyrazine-2,3-dicarboxylate ligand and three O atoms from three water molecules, whereas the other Li+ cation has a distorted trigonal-bipyramidal geometry, coordinated by a carboxylate O atom of a symmetry-related pyrazine-2,3-dicarboxylate ligand, two water molecules and a chelating pyrazine-2,3-dicarboxylate ligand (by utilizing both N and O atoms) of an adjacent molecule. The synthesis of a hydrated polymeric dinuclear lithium complex formed with two pyrazine-2,3-dicarboxylic acid ligands has been reported previously [Tombul et al. (2008a). Acta Cryst. E64, m491-m492]. By comparision to the complex reported here, the dinuclear complex formed with two pyrazine-2,3-dicarboxylic acid ligands differs in the coordination geometry of both Li atoms. The crystal structure further features O-H center dot center dot center dot O and O-H center dot center dot center dot N hydrogen-bonding interactions involving the water molecules and carboxylate O atoms.eninfo:eu-repo/semantics/openAccessArticle65M1704U173210.1107/S16005368090505702-s2.0-7204911496521578706N/AWOS:000272244600167Q4