biostudies-literature00440Unknown67(Pt 12)Starosta WThe asymmetric unit of the title compound, [Li(C(6)H(3)N(2)O(4))(H(2)O)](n), contains an Li(I) ion with a distorted trigonal-bipyramidal coordination environment. It is chelated by a singly protonated ligand mol-ecule via its heterocyclic N atom, by two O aoms, each donated by an adjacent carboxyl-ate group, and is further coordinated by a water O atom which acts as a bridge, forming a mol-ecular ribbon. A proton attached to one of the carboxyl-ate O atoms is situated on an inversion centre and forms a short centrosymmetric hydrogen bond, generating mol-ecular layers parallel to the ac plane. These layers are held together by weak O-H?O hydrogen bonds in which the coordinated water mol-ecules act as donors, whereas carboxyl-ate O atoms are acceptors.Acta crystallographica. Section E, Structure reports onlinem1708-9https://www.ebi.ac.uk/biostudies/studies/S-EPMC3238630biostudies-literaturecatena-Poly[[(6-carb-oxy-pyrazine-2-carboxyl-ato)lithium]-?-aqua].PMC3238630Leciejewicz JStarosta W44falsecatena-Poly[[(6-carb-oxy-pyrazine-2-carboxyl-ato)lithium]-?-aqua].The asymmetric unit of the title compound, [Li(C(6)H(3)N(2)O(4))(H(2)O)](n), contains an Li(I) ion with a distorted trigonal-bipyramidal coordination environment. It is chelated by a singly protonated ligand mol-ecule via its heterocyclic N atom, by two O aoms, each donated by an adjacent carboxyl-ate group, and is further coordinated by a water O atom which acts as a bridge, forming a mol-ecular ribbon. A proton attached to one of the carboxyl-ate O atoms is situated on an inversion centre and forms a short centrosymmetric hydrogen bond, generating mol-ecular layers parallel to the ac plane. These layers are held together by weak O-H?O hydrogen bonds in which the coordinated water mol-ecules act as donors, whereas carboxyl-ate O atoms are acceptors.2011-01-01T00:00:00Z2011 Dec2021-02-28T08:34:26Z2019-03-26T23:59:32ZS-EPMC32386302219952110.1107/S1600536811046198