Spectrochim Acta A Mol Biomol Spectrosc. 2010 Feb 23. [Epub ahead of print]
Panicker CY, Varghese HT, Pillai KM, Mary YS, Raju K, Manojkumar TK, Bielenica A, Van Alsenoy C.
Department of Physics, TKM College of Arts and Science, Kollam, Kerala 691005, India.
Fourier-transform-Raman and infrared spectrum of 4-azatricyclo [5.2.2.0(2,6)] undecane-3,5,8-trione were recorded and analyzed. The vibrational wavenumbers were examined theoretically using the Gaussian03 set of quantum chemistry codes, and the normal modes were assigned by potential energy distribution (PED) calculations. The first hyperpolarizability, predicted infrared intensities and Raman activities are reported. The calculated first hyperpolarizability is comparable with reported values of similar structures which makes this compound an attractive object for future studies of nonlinear optics. Optimized geometrical parameters of the compound are in agreement with similar reported structures. The red shift of the NH stretching wavenumber in the infrared spectrum from the computational wavenumber indicates the weakening of NH bond. Copyright © 2010 Elsevier B.V. All rights reserved.
PMID: 20226726 [PubMed - as supplied by publisher]
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