کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9770475 | 1501949 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Analysis of intermolecular interactions involving halogens in substituted benzanilides
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
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-Hâ¯O and O-Hâ¯O hydrogen bonds in structures 1 and 2 and via N-Hâ¯O hydrogen bond, weak C-Hâ¯F and Clâ¯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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 733, Issues 1â3, 3 January 2005, Pages 133-141
Journal: Journal of Molecular Structure - Volume 733, Issues 1â3, 3 January 2005, Pages 133-141
نویسندگان
D. Chopra, T.N. Guru Row,