苯甲酰苯胺光化学行为的共振拉曼光谱  

RESONANCE RAMAN STUDY ON PHOTODYNAMICS OF BENZANILIDE

作　　者：董晓慧[1,2] 张树东[1] 伍贤方[2] 魏松林[2] 郑旭明[2] 裴克梅[2] 

机构地区：[1]曲阜师范大学物理工程学院,曲阜273165 [2]浙江理工大学理学院,杭州310018

出　　处：《环境化学》2008年第6期814-818,共5页Environmental Chemistry

基　　金：国家自然科学基金(No.20707023);国家基础研究计划(No.2007CB815203)资助项目

摘　　要：采用共振拉曼光谱技术和量子化学计算研究了苯甲酰苯胺在甲醇和乙腈溶液中的短时光化学动力学行为.结果表明,苯甲酰苯胺的非平面反式结构为最稳定结构;在Frank-Condon区域内,苯甲酰苯胺主要由9个活性振动模组成;其中ν24(苯环上CC不对称伸缩振动和CCH的面内弯曲振动,NH面内弯曲振动)振动模在甲醇溶剂中的强度远远大于其在乙腈的强度;与脂肪酰胺类化合物和苯甲酰胺的研究结果比较发现,苯基取代—NH2上的H原子使得CO不再具有明显的溶剂效应.In this paper, the short-time photodissociation dynamics of benzanilide in methanol and acetonitrile solution has been studied by resonance Raman techniqueand quantum chemistry calculations. Computationalresuhs indicate that the no-planar trans-benzanilide is the most stable structure. The spectra indicate that the Franck Condon region photodissociation dynamics have multidimensional character withnine activemodes. The intensity of v24 mode in methanol is much stronger than that in acetonitrile. Compared with fatty amides and benzamide, phenyl substitution for H atom on -NH2 group makes C=O solvent effects disappear.

关 键 词：苯甲酰苯胺 共振拉曼光谱 量子化学 

分 类 号：O625.6[理学—有机化学]