Acta Cryst. (2009). E65, m579  [ doi:10.1107/S1600536809015013 ]

(Diethylenetriamine)bis(theophyllinato)zinc(II) dihydrate

B. Mihály, E. Forizs, A.-Z. Kun and I. Silaghi-Dumitrescu

Abstract: In the title compound, [Zn(C₇H₇N₄O₂)₂(C₄H₁₃N₃)]·2H₂O, the Zn^II ion is pentacoordinated by three N atoms of the diethylenetriamine ligand and one N atom of each of the two theophyllinate anions in a distorted trigonal-bipyramidal geometry. The Zn-N distances range from 2.076 (3) to 2.221 (3) Å. The crystal packing is stabilized by O-HO, O-HN and N-HO hydrogen bonds involving the theophylline and diethylenetriamine ligands and uncoordinated water molecules.

Online 30 April 2009

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