Analysis of intermolecular interactions involving halogens in substituted benzanilides

被引：13

作者：

Chopra, D ^{[1
]}

Row, TNG ^{[1
]}

机构：

[1] Indian Inst Sci, Solid State & Struct Chem Unit, Bangalore 560012, Karnataka, India

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2005年 / 733卷 / 1-3期

关键词：

weak interactions; hydrogen bonds; polymorphism; molecular conformation;

D O I：

10.1016/j.molstruc.2004.03.011

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Crystal structures of halogen-substituted benzanilides have been analyzed in terms of weak interactions involving halogens. The four 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-(HO)-O-... and O-(HO)-O-... hydrogen bonds in structures 1 and 2 and via N-(HO)-O-... hydrogen bond, weak C-H... F and (ClCl)-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. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：133 / 141

页数：9

共 39 条

[1] Crystal engineering: Strategies and architectures [J].