catena-Poly[[bis­(μ-3-amino­pyrazine-2-carboxyl­ato)-κ3 N 1,O:O;κ3 O:N 1,O)dilithium]-di-μ-aqua]

Abstract

The title compound, [Li(C5H4N3O2)(H2O)]n, is composed of centrosymmetric dinuclear units, in which the LiI ions are bridged by two carboxyl­ate O atoms donated by two ligands. The dinuclear unit is nearly planar [r.m.s. deviation = 0.0125 (2) Å]. The LiI ion is coordinated by an N,O-chelating ligand, a bridging carboxyl­ate O atom from another ligand and two bridging water O atoms in a distorted trigonal-bipyra­midal geometry. The water O atoms bridge the dinuclear units into a polymeric mol­ecular column along [010]. The columns are held together by O—H⋯O and N—H⋯N hydrogen bonds. An intra­molecular N—H⋯O inter­action also occurs