Acta Crystallographica Section C

Crystal Structure Communications

Volume 60, Part 5 (May 2004)

fr1474 scheme

Acta Cryst. (2004). C60, o318-o320 [doi:10.1107/S0108270104006122]

5-(2-Chlorophenyldiazenyl)salicylaldehyde and 4-(2-chlorophenyldiazenyl)-2-{[tris(hydroxymethyl)methyl]aminomethylene}cyclohexa-3,5-dien-1(2H)-one

Ç. Albayrak, M. Odabasoglu, O. Büyükgüngör and P. Lönnecke

Abstract: The molecule of the former title compound, C₁₃H₉ClN₂O₂, (I), is nearly planar, with an intramolecular OO hydrogen bond of 2.692 (2) Å. The latter title compound, C₁₇H₁₈ClN₃O₄, (II), exists in the keto-amine tautomeric form, with a strong intramolecular hydrogen bond of 2.640 (2) Å between the O and N atoms, the H atom being bonded to the N atom. The azobenzene moieties of both molecules have trans configurations, and the dihedral angle between the planes of the two aromatic rings is 4.1 (1)° in (I) and 9.9 (1)° in (II). The N-HO hydrogen-bonded rings are almost planar and coupled with the cyclohexadiene rings in (II).

Formula: C₁₃H₉ClN₂O₂ and C₁₇H₁₈ClN₃O₄

Online 9 April 2004


	Structure factor file (CIF format) (109.6 kbytes) Contains datablock I

	Structure factor file (CIF format) (160.1 kbytes) Contains datablock II

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