Arjunan V, Mohan S, Subramanian S, Thimme Gowda B
Department of Chemistry, Tagore Arts College, Pondicherry 605008, India.
Spectrochim Acta A Mol Biomol Spectrosc. 2004 Apr;60(5):1141-59. doi: 10.1016/j.saa.2003.07.003.
N-(phenyl)-2,2-dichloroacetamide (NPA) and N-(chloro substituted phenyl)-2,2-dichloroacetamides of the configuration XyC6H(5-y)-NHCO-CHCl2 (where, X = Cl and y = 1, 2 and 3) were synthesised and the Fourier transform infrared (FTIR) and Fourier transform Raman (FT-Raman) spectra of the compounds were recorded and analysed. The FTIR spectra of all the compounds were recorded in a Bruker IFS 66V spectrometer in the range of 4000-400 cm(-1) and the FT-Raman spectra were also recorded in the same instrument in the region 3500-100 cm(-1). The variation of an amide bond (-NHCO-) parameters with the substitution of the chlorine atom in the phenyl group and the mixing of different normal modes are discussed with the help of potential energy distribution (PED) calculated through normal co-ordinate analysis.
合成了N-(苯基)-2,2-二氯乙酰胺（NPA）以及构型为XyC6H(5-y)-NHCO-CHCl2（其中，X = Cl且y = 1、2和3）的N-(氯代苯基)-2,2-二氯乙酰胺，并记录和分析了这些化合物的傅里叶变换红外（FTIR）光谱和傅里叶变换拉曼（FT-拉曼）光谱。所有化合物的FTIR光谱在布鲁克IFS 66V光谱仪上于4000 - 400 cm⁻¹范围内记录，FT-拉曼光谱也在同一仪器上于3500 - 100 cm⁻¹区域记录。借助通过正则坐标分析计算得到的势能分布（PED），讨论了酰胺键（-NHCO-）参数随苯基中氯原子取代以及不同简正模式混合的变化情况。
