<i>catena</i>-Poly[[aqualithium(I)]-μ-3-carboxy-5,6-dimethylpyrazine-2-carboxylato-κ<sup>4</sup><i>O</i><sup>2</sup>,<i>N</i><sup>1</sup>:<i>O</i><sup>3</sup>,<i>N</i><sup>4</sup>]
Acta crystallographica. Section E