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(E)-ethyl 4-chloro-3-[2-(2-fluorophenyl)-hydrazono]butanoate
(Int Union Crystallography, 2005)
The title compound, C12H12ClFN2O3, adopts a keto-hydrazo tautomeric form stabilized by an intramolecular N-H (. . .) O hydrogen bond. The whole molecule is roughly planar, the largest deviation from the mean plane being ...
Ethyl 4-chloro-3-oxo-2-(phenylhydrazono)butyrate
(Int Union Crystallography, 2005)
The title compound, C12H13ClN2O3, adopts a keto-hydrazo tautomeric form stabilized by an intramolecular N-(HO)-O-... hydrogen bond. The configuration around the C = N bond is trans. The dihedral angle between the aromatic ...
(2-Hydroxyethy1)hydraziniurn(2+) dichloride
(Blackwell Munksgaard, 2005)
The crystal structure of the title compound, C2H10N2O2+• 2Cl(-), is built up from one 2-hydroxyethylhydrazinium(2+) cation and two Cl- anions. The molecular structure is stabilized by O-H••• Cl and ...
(Z)-4-[(E)-(4-Butylphenyl)diazenyl]-6-{[1,3-dihydroxy-2-(hydroxymethyl) propan-2-ylamino]methylene}-2-methoxycyclohexa-2,4-dienone
(Int Union Crystallography, 2005)
The title compound, C22H29N3O5, is approximately planar with the aromatic rings in a trans configuration with respect to the azo double bond. The eneamine portion of the molecule exists as the keto-amine tautomer, stabilized ...
(Z)-6-{[1,3-dihydroxy-2-(hydroxymethyl)propan-2-ylamino]methylene}-2-methoxy-4-{(E)-[3-(trifluoromethyl)phenyl]diazenyl}cyclohexa-2,4-dienone
(Int Union Crystallography, 2005)
LThe molecule of the title compound, C19H20F3N3O5, at 150 K, is nearly planar and exists in the keto-amine (N-H---O) tautomeric form, with a strong intramolecular hydrogen bond of 2.585 (2) angstrom between the O and N ...
(Z)-ethyl 4-chloro-2-[2-(2-methoxyphenyl)-hydrazono]-3-oxobutanoate
(Int Union Crystallography, 2005)
The title compound, C13H15ClN2O4, adopts a keto-hydrazo tautomeric form stabilized by intramolecular N-H center dot center dot center dot O hydrogen bonds. The phenylhydrazone fragment is planar within +/- 0.028 (2) angstrom. ...
4-Acetylanilinium chloride monohydrate
(Int Union Crystallography, 2004)
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3-methoxy-5-(4-methylphenyldiazenyl)salicylaidehyde and 3-methoxy-5-(2-methylphenyldiazenyl)salicylaldehyde
(Int Union Crystallography, 2004)
The two title molecules, both C15H14N2O3, are roughly planar and display a trans conformation with respect to the -N=N- double bond, as found for other diazene derivatives. In both compounds, there are intramolecular O-H...O ...
2-[2-(hydroxymethyl)phenyliminomethyl]-phenol
(Int Union Crystallography, 2004)
Molecules of the title compound, C14H13NO2, are nearly planar. The molecular structure is stabilized by a strong intramolecular O-H...N hydrogen bond between the imine and hydroxyl groups [O...N = 2.614 (2) Angstrom]. In ...
6-methoxy-5-(phenyldiazenyl)salicylaldehyde
(Int Union Crystallography, 2004)
The structure of the title compound, C14H12N2O3, determined at room temperature, shows that the molecule is approximately planar in the solid state, as found for other diazene (azobenzene) derivatives. The compound exhibits ...
