Vibrational analysis of substituted anilines, anisoles and anisidines

The Fourier transform infrared spectra of o-, m- and p-nitroanilines, o-, m- and p-nitroanisoles and 2-nitro- p-, 4-nitro- o- and 5-nitro- o-anisidines along with the Fourier transform far-infrared spectra of the nitroanilines, p-nitroanisole and the nitroanisidines were recorded. The Raman spectra...

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Bibliographic Details
Published in:Vibrational spectroscopy 1992-10, Vol.4 (1), p.39-57
Main Authors: Kumar, D. Vijaya, Babu, V. Ashok, Rao, G. Ramana, Pandey, G.C.
Format: Article
Language:English
Subjects:
Anilines
Anisidines
Anisoles
Infrared spectrometry
Nitro compounds
Normal coordinate analysis
Raman spectrometry
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Summary:The Fourier transform infrared spectra of o-, m- and p-nitroanilines, o-, m- and p-nitroanisoles and 2-nitro- p-, 4-nitro- o- and 5-nitro- o-anisidines along with the Fourier transform far-infrared spectra of the nitroanilines, p-nitroanisole and the nitroanisidines were recorded. The Raman spectra of m- and p-nitroanilines, p-nitroanisole and nitroanisidines were also measured. A normal coordinate analysis was carried out for the in-plane vibrations of these molecules using a 63-parameter modified valence force field. The force constants were refined in an overlay least-squares technique employing 277 frequencies of the molecules. Unambiguously vibrational assignments were made using potential energy distributions and eigenvectors.
ISSN:0924-2031
1873-3697
DOI:10.1016/0924-2031(92)87012-5