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Acta Cryst. (2004). E60, o1790-o1792 [ doi:10.1107/S1600536804022482 ]
Abstract: The title compound, (creatH)+(pydcH)-·H2O or C4H8N3O+·C7H4NO4-·H2O, was obtained by the reaction of 2,6-pyridinedicarboxylic acid (dipicolinic acid, pydcH2) with creatinine (creat). A single proton from the dicarboxylic acid is transferred to the endocyclic imine N atom of creatinine. The cations and anions lie on a crystallographic mirror plane, across which the water molecule is disordered. The interactions among cations, anions and water molecules consist of ion-pairing, hydrogen bonding and ![[pi]](/logos/entities/pi_rmgif.gif)
- stacking.
Online 18 September 2004
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