کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1237834 | 968909 | 2009 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Analysis of vibrational spectra of 1-chloro-2,4-dinitrobenzene based on density functional theory calculations Analysis of vibrational spectra of 1-chloro-2,4-dinitrobenzene based on density functional theory calculations](/preview/png/1237834.png)
This work deals with the vibrational spectroscopy of 1-chloro-2,4-dinitrobenzene (CDNB) by means of quantum chemical calculations. The FTIR and FT-Raman spectra were measured in the condensed state. The fundamental vibrational frequencies and intensity of vibrational bands were evaluated using density functional theory (DFT) with the standard B3LYP/6-311+G** basis set combinations, and was scaled using various scale factors which yields a good agreement between observed and calculated frequencies. The vibrational spectra were interpreted with the aid of normal coordinate analysis based on scaled quantum mechanical force field. The results of the calculations were applied to simulated infrared and Raman spectra of the title compound, which showed excellent agreement with the observed spectra.
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 72, Issue 4, May 2009, Pages 738–742