Acta Cryst. (2009). E65, m671  [ doi:10.1107/S1600536809018649 ]

catena-Poly[potassium-di--aqua--4-(5-tetrazolio)pyridine]

L.-J. Cui

Abstract: The title compound, [K(C₆H₄N₅)(H₂O)₂]_n, was synthesized by hydrothermal reaction of KOH with 4-(5-tetrazolio)pyridine. The K atom has a distorted octahedral coordination environment and is coordinated by two axial N atoms from the organic ligand and by four water molecules in the equatorial plane. The molecules as a whole are located on crystallographic mirror planes; the K atom is also located on an inversion center. Both the water molecules and the organic ligands act as bridges to link symmetrically the adjacent K atoms into polymeric chains parallel to the c axis. O-HN hydrogen bonds involving the water O atoms and aromatic - interactions [centroid-centroid distance 3.80 (2) Å] between the pyridine and tetrazole rings build up an infinite three-dimensional network.

Online 23 May 2009

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