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| 羟基卟啉衍生物LB膜的紫外可见光谱表征 | |
| 引用本文： | 黄涛,王永强,田永驰,梁映秋. 羟基卟啉衍生物LB膜的紫外可见光谱表征[J]. 光谱学与光谱分析, 1999, 19(1): 35-37 |
| 作者姓名： | 黄涛 王永强 田永驰 梁映秋 |
| 作者单位： | 1. 武汉化工学院化工系,430073,武汉 2. 吉林大学理论化学研究所,130023,长春 3. 南京大学化学系,210093,南京 |
| 摘 要： | 研究了两种具有两条脂链的羟基卟啉在气液界面上的成膜性能及其ＬＢ膜。ＵＶ－Ｖｉｓ光谱表明，两种卟啉在ＬＢ膜中的聚集态不同，卟啉环上脂链和羟基呈对称了代时形成Ｊ－聚体，呈同侧取代时形成氢键聚集体。利用偏振ＵＶ－Ｖｉｓ吸收谱测定了ＬＢ膜中卟啉环的取向。结果表明，侧链和羟基的相对位置对环的取向没有影响，但影响膜中平均分子截面积的大小和环间的距离，因而影响膜中分子的聚集态。 |
| 关 键 词： | LB膜 紫外可见光谱 取向 卟啉类化合物 |
UV-Vis Spectroscopic Characterization of LB Films of Hydroxyl-Substituted Porphyrin Derivatives |
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| Tao HUANG,Yongqiang WANG,Yongchi TIAN,Yingqiu LIANG. UV-Vis Spectroscopic Characterization of LB Films of Hydroxyl-Substituted Porphyrin Derivatives[J]. Spectroscopy and Spectral Analysis, 1999, 19(1): 35-37 | |
| Authors: | Tao HUANG Yongqiang WANG Yongchi TIAN Yingqiu LIANG |
| Affiliation: | Department of Chemical Engineering, Wuhan Institute of Chemical Technology, 430073 Wuhan. |
| Abstract: | The LB films forming properties of two hydroxyl substituted porphyrins with double hexadecyl chains have been characterized.UV Vis spectra show that the two porphyrins possess various aggregation behaviors in LB films.The porphyrin with symmetrically attached chains tend to form J aggregate and the other asymmetric porphyrin can form hydrogen bonded aggregate in LB films.The orientation of porphyrin rings was examined by polarized UV Vis spectra.The results indicate that the situation of side chain attached on porphyrin ring has no influence on porphyrin ring orientation,but has great influence on mean molecular areas or the distanses between porphyrin rings,and so as to affect the aggregation behaviors of porphyrin in LB films. |
| Keywords: | LB film Porphyrin UV Vis spectrum Orientation |
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