1,4-Dihydro-1-methyl-4-nitriminopyridine Dihydrate

Molecules of the title compound, C₆H₇N₃O₂.2H₂O, are almost planar with the NNO₂ nitrimino group twisted 8 (1) ° degrees out of the plane of the pyridine ring. The nitrimino group and C₅N ring form a conjugated π-electron system. These molecules together with water molecules are arranged in planes. They are connected with each other by O—H...O, O—H...N and weaker C—H...O hydrogen bonds. Four water molecules form a planar square (O—H...O—H)₂ ring with O...O distances equal to 2.741 (2) and 2.778 (2) Å. These rings join pairs of molecular planes into double layers, interacting otherwise by van der Waals forces.

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