INVESTIGATION OF ELECTRIC DICHROISM OF CETYLPYRIDINIUM BROMIDE BY SPECTROELECTROCHEMISTRY WITH A LONG OPTICAL-PATH LENGTH THIN-LAYER CELL | |
DONG SJ ; ZHU YC | |
刊名 | langmuir
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1991 | |
卷号 | 7期号:2页码:394-397 |
关键词 | LIQUID-CRYSTALS |
ISSN号 | 0743-7463 |
通讯作者 | dong sj |
中文摘要 | in this paper, the electric dichroism of cetylpyridinium bromide (cpb) has been found and studied by spectroelectrochemistry with a long optical path length thin-layer cell (loptlc) for the first time. the cpb molecule with a long carbon chain and a polar pyridinium ring is anisotropic in molecular configuration or in polarizability. in the electric field of a thin-layer cell, the cpb molecule reorientates along the direction of the electric field and exhibits electric dichroism, which results in the increase of absorbance of cpb in the uv-vis range. by use of in situ measurement of spectroelectrochemistry, the order parameters of long molecular axis (s = 0.845) and short molecular axis (d = 0.155) and the angle between the long axis direction of the cpb molecule and the direction normal to the electrode surface (theta = 18-degrees 44') have been determined. these data were used to describe the state of arrangement of the molecules in the solution. the reorientation of cpb molecules is the result of the interaction between the anisotropic molecules and electric field. the effects of the concentration of cpb and of the applied electric field on the electric dichroism have been investigated. |
收录类别 | SCI收录期刊论文 |
语种 | 英语 |
公开日期 | 2011-03-03 ; 2011-06-10 |
内容类型 | 期刊论文 |
源URL | [http://ir.ciac.jl.cn/handle/322003/38527] ![]() |
专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
推荐引用方式 GB/T 7714 | DONG SJ,ZHU YC. INVESTIGATION OF ELECTRIC DICHROISM OF CETYLPYRIDINIUM BROMIDE BY SPECTROELECTROCHEMISTRY WITH A LONG OPTICAL-PATH LENGTH THIN-LAYER CELL[J]. langmuir,1991,7(2):394-397. |
APA | DONG SJ,&ZHU YC.(1991).INVESTIGATION OF ELECTRIC DICHROISM OF CETYLPYRIDINIUM BROMIDE BY SPECTROELECTROCHEMISTRY WITH A LONG OPTICAL-PATH LENGTH THIN-LAYER CELL.langmuir,7(2),394-397. |
MLA | DONG SJ,et al."INVESTIGATION OF ELECTRIC DICHROISM OF CETYLPYRIDINIUM BROMIDE BY SPECTROELECTROCHEMISTRY WITH A LONG OPTICAL-PATH LENGTH THIN-LAYER CELL".langmuir 7.2(1991):394-397. |
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