【作者】 田永驰； 张韫宏； 梁映秋；

【Author】 Tian Yongchi,Zhang Yunhong and Liang Yingqiu (Institute of Theoretical Chemistry,Jilin University,Changchun,130023,China)

【机构】 吉林大学理论化学研究所；

【摘要】 <正>本文以亮黄（BY）为光谱探针,用共振拉曼光谱方法,对由表面活性剂溴化十六烷基三甲胺（CTAB）形成的黑皂膜进行了研究,讨论了黑皂膜内探针分子周围的微环境的酸碱性,并确定了探针分子在黑皂膜内的取向.黑皂膜,水溶液及胶体溶液三种不同微环境下BY的共振拉曼光谱示于图1,中性条件下,BY在水溶液中以酸式结构存在,1441 cm^-1是酸式BY分子的反式-N=N-伸缩振动特征峰.在胶体溶液中,BY以碱式结构更多还原

【Abstract】 The observation of resonance Raman spectra for the black soap films(BSF) drawn from the mixture solution of cetyltrimethylammoumium bromid(CTAB) and brilliant yellow(BY) was fulfilled by the technique developed in this laboratary.The results reveal that the BSF provides a microenvironment where acid form and basic form are in an equilibrium,which differs from its film-forming solution.Polarized Raman measurements were also conducted for the BSF in four polarization geometries.The Polarized Raman intensity ratios indicate that the long axes of BY molecules are oriented with a large angel to the direction of the surface normal.更多还原