In the title compound, C(21)H(23)NO, obtained via a one-pot synthesis, an intra-molecular O-H⋯N hydrogen bond stabilizes the mol-ecular conformation. The dihedral angle between the fused ring system and the phenyl ring is 78.27 (5)°. The crystal packing is characterized by helical chains of mol-ecules linked by C-H⋯O hydrogen bonds.
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http://dx.doi.org/10.1107/S1600536811000067 | DOI Listing |
Acta Crystallogr E Crystallogr Commun
February 2023
Unité de Recherche de Chimie de l'Environnement et Moléculaire Structurale (CHEMS), Faculté des Sciences Exactes, Université Frères Mentouri Constantine 1, Constantine, 25017, Algeria.
The title compound, CHNO, belongs to the family of azo dyes. In the light of a single-crystal X-ray study, it is evident that of the tautomeric forms (azo-hydrazone), the hydrazone form is the predominant form in the solid state, namely, (1)-1-[2-(3-nitro-phen-yl)hydrazin-1-yl-idene]-1,2-di-hydro-naphthalen-2-one. The naphthol and benzene fragments attached to the -N=N- moiety adopt the conformation.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
October 2020
Peoples Friendship University of Russia, 6 Miklukho-Maklaya Street, Moscow, 117198, Russian Federation.
The bis-(anil) mol-ecule of the title compound, CHNO·CHCl, contains two anil fragments in the enol-enol form, exhibiting intra-molecular O-H⋯N hydrogen bonds. The two hy-droxy-naphthalene ring systems are approximately parallel to each other with a dihedral angle of 4.67 (8)° between them, and each ring system makes a large dihedral angle [55.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
September 2015
Department of Chemistry, University of Sargodha, Sargodha, Punjab, Pakistan.
In the title compound, C17H11Cl2NO, the dihedral angle between the planes of the naphthalene ring system and the benzene ring is 28.88 (11)°. The main twist in the mol-ecule occurs about the N-Cb (b = benzene ring) bond, as indicated by the C=N-Cb-Cb torsion angle of 31.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
September 2015
Institut für Anorganische Chemie, J. W. Goethe-Universität Frankfurt, Max-von Laue-Str. 7, 60438 Frankfurt/Main, Germany.
In the title compound, C23H19NO2, an oxazine Mannich base derivative, the oxazine ring has a half-chair conformation. The 2-hy-droxy-naphthalen-1-yl substituent is placed in an axial position. There is an intra-molecular O-H⋯N hydrogen bond, forming an S(6) graph-set motif.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
July 2015
Department of Physical and Analytical Chemistry, Faculty of Chemistry, Oviedo University-CINN, Oviedo 33006, Spain.
The title compound, C19H17NO, has an E conformation about the N=C bond. The mol-ecule is relatively planar, with the benzene ring and naphthalene ring plane being inclined to one another by 4.28 (10)°.
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