Acta Cryst. (2008). E64, m578  [ doi:10.1107/S160053680800737X ]

catena-Poly[[nickel(II)--1,3-dimethyl-2,6-dioxo-7H-purinato-²N⁷:N⁹] hydroxide]

L.-H. Wei

Abstract: The title complex, {[Ni(C₇H₇N₄O₂)]OH}_n, has been prepared through hydrothermal synthesis. The asymmetric unit contains one [Ni(TH)]⁺ cation (TH is the theophylline anion) and one hydroxide anion. The Ni²⁺ ion is coordinated by two N atoms from two neighboring theophylline anions. The alternating linkage of the Ni²⁺ cation and theophylline anion results in a one-dimensional chain along the [010] direction. Intermolecular O-HO hydrogen bonds are present n the crystal structure.

Online 29 March 2008

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