Application of Photoinduced Electron Transfer Reaction Across the Water-Organic Interface

光致电子转移反应在水-有机界面上的应用

基本信息

批准号：
01550628
负责人：
NAKAMURA Hiroshi
金额：
$ 1.22万
依托单位：
Kyushu University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1989
资助国家：
日本
起止时间：
1989 至 1990
项目状态：
已结题

项目摘要

1. Photoinduced electron transfers from porphyrin (at the interface) to various type of viologen (as an acceptor) were investigated by the use of molecular assemblies such as a synthetic bilayer which provided a water-organic interface. In case of reactions at a positively charged bilayer, the yield of photoreduced viologen increased in the application of External Magnetic Field, when negatively charged viologen was used as an electron acceptor. This suggested that the radical pair kept a certain distance in the reaction time, and an electron spin-spin interaction remained. On the other hand, the positively charged viologen rapidly left away from the surface of the bilayer after the electron transfer, and a magnetic field effect was not observed.2. The photoinduced electron transfer from the amphiphilic porphyrin to the water soluble viologen in the AOT reversed micelles was investigated with External Magnetic Field Effect. The result clearly showed that the AOT micro-water pool gave a special microenvironment such as a "Cage" in the radical reactions and that the pseudo-linked system was observed.3. The biphotonic ionization of amphiphilic donor compound on the surface of AOT reversed micelles was also studied. The ionization efficiency was controlled by the size of the water pool. The Electron Spin Echo study also showed that the geometry of the donor position on the water-organic interface was controlled by the microenvironment of the micelles such as water pool size.

1。通过使用分子组件（例如合成双层），研究了从卟啉（在界面上）到各种类型的Viologen（作为受体）的光诱导的电子传输。如果在带正电荷双层的反应时，当使用带负电荷的Viologen用作电子受体时，光培养的VIologen的产量增加了。这表明自由基对在反应时间内保持了一定的距离，并且电子自旋旋转相互作用保持不变。另一方面，电子传递后，带正电荷的Viologen迅速远离双层表面，并且未观察到磁场效应。2。对AOT逆转胶束中的水胶质卟啉从两亲性卟啉到水溶性胶质细胞的转移进行了外部磁场效应研究。结果清楚地表明，AOT微水池具有特殊的微环境，例如自由基反应中的“笼”，并且观察到伪连接系统。3。还研究了AOT表面上的两亲性供体化合物的两种两种电离。电离效率受水池的大小控制。电子自旋回声研究还表明，供体位置在水有机界面上的几何形状受到胶束尺寸等胶束的微环境的控制。