کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9757005 | 1495290 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Infrared and laser Raman spectral studies of bis(dl-aspartic acid) sulfate
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Infrared and laser Raman spectral studies of bis(dl-aspartic acid) sulfate Infrared and laser Raman spectral studies of bis(dl-aspartic acid) sulfate](/preview/png/9757005.png)
چکیده انگلیسی
The infrared and Raman spectra of bis(dl-aspartic acid) sulfate in the crystalline state are recorded at room temperature and the vibrational assignments of the observed wavenumbers are made. The presence of two carbonyl (CO) groups has been identified in the title complex and the two carbonyl groups are in different environment. The extensive intermolecular hydrogen bonding in the crystal has been identified by the shifting of bands due to the stretching and bending modes of the various functional groups. The sulfate group forms the anion. Its fundamentals continue to be degenerate except for the asymmetric bending mode and it suggests that the Td symmetry of SO42â group has not been affected in the crystal.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 62, Issues 1â3, November 2005, Pages 164-170
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 62, Issues 1â3, November 2005, Pages 164-170
نویسندگان
M. Briget Mary, V. Ramakrishnan,