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Photoinduced Charge Transfer and Related Phenomena

光致电荷转移及相关现象

基本信息

批准号：
05044212
负责人：
YOSHIHARA Keitaro
金额：
--
依托单位：
Institute for Molecular Science, Okazaki National Research Institutes
依托单位国家：
日本
项目类别：
Grant-in-Aid for Overseas Scientific Survey.
财政年份：
1993
资助国家：
日本
起止时间：
1993 至无数据
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-05044212/
关键词：
Charge transfer Electron transfer Oxidation Reduction Photochemistry Photosensitization Photoelectro-chemistry Photography

项目摘要

The charge transfer (CT) (or electron transfer) is defined by a movement of a charge (or an electron) from one molecule to the other. The photoinduced CT (PCT) is the process which is induced by photon absorption by a molecule. CT is one of the most general form of oxidation-reduction reactions, and thus is one of the most fundamental processes in nature. Photoinduced CT is still very general, but it has its own merits, because it gives photon energy to the system and gives an external means of control to the system compared to thermal electron transfer.PCT appears in chemistry in many different areas : charge exchange reactions and collisions, charge exchange surface photochemical reactions in gas and in cluster phases, CT reactions in organic and inorganic synthesis and polymer chemistry, photo-electrochemistry, CT interactions in molecular photoconductors and non-linear optical materials and photoimaging processes like photography and xerography, and in nature in forms of photosynthesis. Collaborative studies will be made on specific materials with specific skills from both sides.The mode of collaborations is, i)information exchange seminars in specific area of research attended by a selected number of specialists from both countries, ii)exchange of young investigators (Japanese side : research associates, postdoctral fellows, research technical staffs, and graduate students, U.S. side : assistant professors, postdoctoral fellows, and graduate students.) They stay for several weeks to one year to perform collaborative research., and iii)Short visits by research directors. IMS serves as a "key institution" to promote the collaborative program for all the institutions within the scheme of the Ministry of Education, Science, and Culture.

电荷转移（CT）（或电子转移）由电荷（或电子）从一个分子到另一个分子的移动定义。光诱导CT（Photoinduced CT，PCT）是指分子吸收光子而引起的过程。CT是氧化还原反应的最常见形式之一，因此是自然界中最基本的过程之一。光诱导CT还是很通用的，但是它有自己的优点，因为它给系统以光子能量，和热电子转移相比，给系统一种外部的控制手段。PCT出现在化学的很多不同领域：电荷交换反应和碰撞，气体和团簇相中的电荷交换表面光化学反应，有机和无机合成和聚合物化学中的CT反应，光电化学、分子光电导体和非线性光学材料中的CT相互作用以及像照相术和静电照相术的光成像过程，以及自然界中的光合作用形式。双方将就特定材料和特定技能进行合作研究，合作方式为：i）由两国选定的专家参加特定研究领域的信息交流研讨会，ii）交换年轻研究人员（日方：研究员、博士后、研究技术人员和研究生，美方：助理教授、博士后研究员和研究生。）他们停留几个星期到一年进行合作研究。㈢研究主任的短期访问。IMS作为一个“关键机构”，在教育、科学和文化部的计划范围内促进所有机构的合作方案。