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. 2009 Nov 7;65(Pt 12):o3039.
doi: 10.1107/S1600536809045772.

4-(2,3-Dihydroxybenzyl-ideneamino)-3-methyl-1H-1,2,4-triazol-5(4H)-one

Hasan Tanak, Yavuz Köysal, Metin Yavuz, Samil Işık, Gülşah Gül

4-(2,3-Dihydroxybenzyl-ideneamino)-3-methyl-1H-1,2,4-triazol-5(4H)-one

Hasan Tanak et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

All the non-H atoms of the title compound, C(10)H(10)N(4)O(3), are almost coplanar, the maximum deviation from planarity being 0.065 (3) Å. The dihedral angle between the aromatic rings is 1.66 (6)°. The mol-ecule adopts the enol-imine tautomeric form with an intra-molecular hydrogen-bonding inter-action between the Schiff base N atom and the hydr-oxy group. In the crystal, inter-molecular N-H⋯O and O-H⋯O hydrogen bonds link the mol-ecules into a three-dimensional network.

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Figures

Fig. 1.
Fig. 1.
A view of the title compound, with the atom-numbering scheme and 50% probability displacement ellipsoids. The dashed line indicates the intramolecular hydrogen bond.
Fig. 2.
Fig. 2.
A partial packing of the title compound.
See this image and copyright information in PMC

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