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Analysis of intermolecular interactions involving halogens in substituted benzanilides

Chopra, D and Row, Guru TN (2005) Analysis of intermolecular interactions involving halogens in substituted benzanilides. In: Journal of Molecular Structure., 733 (1-3). pp. 133-141.

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Crystal structures of halogen-substituted benzanilides have been analyzed in terms of weak interactions involving halogens. The fourc compounds namely 3-fluoro-N-(3-hydroxyphenyl)benzamide, 3-chloro-N-(3-hydroxyphenyl)benzamide, 3-fluoro-N-(4-methylphenyl)benzamide and 3-chloro-N-(4-methylphenyl)benzamide crystallize in monoclinic symmetry. The packing modes in the crystalline lattice generate motifs via N–H· · ·O and O–H· · ·O hydrogen bonds in structures 1 and 2 and via N–H· · ·O hydrogen bond, weak C–H· · ·F and Cl· · ·Cl interactions in structures 3 and 4. These structures when compared with the polymorphs of benzanilide show no orientational disorder and depict subtle conformational changes, which are directed by both strong hydrogen bonds and weak interactions involving halogens.

Item Type: Journal Article
Publication: Journal of Molecular Structure.
Publisher: Elsevier.
Additional Information: The copyright of this article belongs to Elsevier.
Keywords: Weak interactions;Hydrogen bonds;Polymorphism;Molecular conformation
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 03 Apr 2006
Last Modified: 19 Sep 2010 04:24
URI: http://eprints.iisc.ac.in/id/eprint/6107

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