کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10557398 968891 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigation of H-bonds in 1,1-diphenylethanol by IR spectra measurements
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Investigation of H-bonds in 1,1-diphenylethanol by IR spectra measurements
چکیده انگلیسی
The parameters of stretching vibrations νOH (frequencies and integral intensities) have been calculated from IR spectra of a large number of H-complexes of 1,1-diphenylethanol [(C6H5)2C(CH3)OH] with solvents of various proton accepting strength which were not regularly reported. The data has been used to estimate the formation enthalpies of H-complexes and the proton-donor action of the mentioned alcohol. Also, correlations between those spectral characteristics have been investigated. The H-bonds in 1,1-diphenylethanol (DPE) have been investigated depending on concentrations in CCl4 and temperature by means of infrared (IR) absorption spectra measurments. It has been found that the hydrogen bonds of the crystalline DPE are formed in the manner of cyclic tetramer, while in solutions with the concentration 0.5 mol/l, cyclic dimers are formed, which in higher concentrations change into cyclic tetramers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 61, Issue 6, April 2005, Pages 1121-1126
نویسندگان
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