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metal-organic compounds
The crystal structure of the title compound, (C6H8N5)[ZnCl3(C6H7N5)].H2O, contains 7-methyladeninium cations protonated at N3 and trichloro(7-methyladenine)zinc(II) anions with the Zn atom tetrahedrally coordinated by N9 and three chloro ligands. Both species are present as hydrogen-bonded centrosymmetric dimers stacked alternately in columns in the crystal.