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organic compounds
In C12H18N2O2.H2O, the oximic OH group is anti (trans) to the quinoid carbonyl group, thus there are no intramolecular hydrogen bonds in the molecule. Extensive intermolecular interactions between neighbouring quinone oxime molecules and associated water molecules are observed. Bond distances are intermediate between those predicted for the 1,2-quinoneoxime and 2,5-oxime imino forms.