کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9770089 | 1501939 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigation of 4â²-n-alkyl-4-cyanobiphenyls structure features by IR spectroscopy methods
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Investigation of 4â²-n-alkyl-4-cyanobiphenyls structure features by IR spectroscopy methods Investigation of 4â²-n-alkyl-4-cyanobiphenyls structure features by IR spectroscopy methods](/preview/png/9770089.png)
چکیده انگلیسی
With the use of IR spectroscopy methods (experiment and theory), we investigated the features of structure and intermolecular interaction in the homological rows of 4â²-n-alkyl-4-cyanobiphenyls (hereafter nCB, where n is the number of carbon atoms in alkyl group (AG)). We measured the IR absorbance spectra of the samples of nCB (n=2, 4, 5, 8, 9) in the 400-4000 cmâ1 frequency region in the 26-100 °C temperature range for solid crystal (SC), liquid crystal (LC), and isotropic liquid (IL). We performed theoretical simulation of the IR spectra of the nCB molecules (n=1-9) with taking into account their conformational mobility. We performed the analysis of the measured spectra with taking into account available X-ray data concerning intermolecular interaction in these substances. On the basis of theoretical modeling, we presented the interpretation of the existing data. We found conformational inhomogeneity of the samples in various phase states and estimated the influence of intermolecular interaction as a structure-forming factor.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volumes 744â747, 3 June 2005, Pages 425-432
Journal: Journal of Molecular Structure - Volumes 744â747, 3 June 2005, Pages 425-432
نویسندگان
L.M. Babkov, I.I. Gnatyuk, S.V. Trukhachev,