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4-(2-Meth­oxy-4-nitro­phenyl­diazen­yl)phenol monohydrate

✍ Scribed by You, Xiu-Li ;Zhang, Yan ;Zhang, De-Chun

Publisher
International Union of Crystallography
Year
2006
Tongue
English
Weight
236 KB
Volume
62
Category
Article
ISSN
1600-5368

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The title compound, C 14 H 12 N 2 O 4 , exists as an enol-imine tautomer, in which a strong intramolecular O-HÁ Á ÁN hydrogen bond is formed. This study verifies the preference of the enol-imine tautomeric form in the solid state.

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The molecule of the title compound, C 14 H 12 N 2 O 2 , is nearly planar and displays a trans configuration with respect to the N N double bond, as found for other diazene derivatives. There is an intramolecular O-HÁ Á ÁO hydrogen bond and the crystal packing is governed bystacking.

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In the molecule of the title compound, C 14 H 14 N 2 O 2 , the two rings display a trans configuration with respect to the N N double bond. The molecules are linked by intermolecular O-HÁ Á ÁN hydrogen bonds, forming a three-dimensional network.

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The principal molecule of the title molecule, C 12 H 8 -ClN 3 O 3 ÁC 3 H 7 NO, is essentially planar. The two benzene rings make a dihedral angle of only 6.9 (1) . The nitro group is slightly twisted with respect to the benzene ring to which it is attached [3.7 ( 1) ]. The dimethylformamide solvent