Umadevi M, Poornima R Regi
Department of Physics, Mother Teresa Women's University, Kodaikanal 624102, Tamilnadu, India.
Spectrochim Acta A Mol Biomol Spectrosc. 2009 Sep 1;73(5):815-22. doi: 10.1016/j.saa.2009.04.003. Epub 2009 Apr 22.
FTIR spectra of propionic acid (PA), N,N-dimethyl formamide (DMF) and its binary mixtures with varying molefractions of the PA were recorded in the region 500-3500 cm(-1), to investigate the formation of hydrogen bonded complexes in a mixed system. The observed features in nu(C=O), delta(O=C-N) and nu(as)(CN) of DMF, nu(C=O) and nu(CO) of PA have been explained in terms of the hydrogen bonding interactions between DMF and PA and dipole-dipole interaction. The intrinsic bandwidth for the vibrational modes nu(as)(CN) and nu(CO) has been elucidated using Bondarev and Mardaeva model.
记录了丙酸（PA）、N，N-二甲基甲酰胺（DMF）及其与不同摩尔分数PA的二元混合物在500-3500 cm⁻¹区域的傅里叶变换红外光谱（FTIR），以研究混合体系中氢键复合物的形成。根据DMF与PA之间的氢键相互作用和偶极-偶极相互作用，对DMF的ν（C=O）、δ（O=C-N）和ν（as）（CN）、PA的ν（C=O）和ν（CO）中观察到的特征进行了解释。使用邦达列夫和马尔达耶娃模型阐明了振动模式ν（as）（CN）和ν（CO）的本征带宽。
