کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9770160 | 1501940 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Crystal packing modes of two 1-CH2R-2-methyl-4-nitroimidazoles: Packing with Zâ²=2
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Crystal packing modes of two 1-CH2R-2-methyl-4-nitroimidazoles: Packing with Zâ²=2 Crystal packing modes of two 1-CH2R-2-methyl-4-nitroimidazoles: Packing with Zâ²=2](/preview/png/9770160.png)
چکیده انگلیسی
The crystal structures of two similar 1-R-2-methyl-4-nitroimidazoles, where R is allyl (CH2-CHCH2, 1) and 2-bromoethyl (CH2-CH2Br, 2) have been determined by means of X-ray crystallography at 100(1) K. In both cases the compounds crystallize with two different (symmetry-independent) molecules in the asymmetric part of the unit cell (Zâ²=2). The main motifs of crystal packing-molecular tapes-are created by C-Hâ¯N and strengthened by secondary C-Hâ¯O hydrogen bonds. The tapes form bilayers via Ïâ¯Ï interactions. The creation of these bilayers, the primary building blocks of the crystal structures, is possible because two symmetry-independent molecules have different conformations (1) or take part in different intermolecular interactions (2).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 743, Issues 1â3, 31 May 2005, Pages 209-215
Journal: Journal of Molecular Structure - Volume 743, Issues 1â3, 31 May 2005, Pages 209-215
نویسندگان
Maciej Kubicki,