摘要
从分子水平上理解电子传递中电活性基团的结构变化能够直接促进我们对电化学、分子/纳米电子学、生命过程中电子传递的认识。表面电化学是经典的宏观实验方法,从宏观的实验数据中也可以了解分子结构和电活性基团所处微环境的信息。对此,本文从表面电化学的转移系数、表观转移电子数和重组能三个方面进行了介绍。表面电化学的转移系数的变化规律可以用来指示分子间的相互作用,表观转移电子数能够给出生物大分子基团间的连接信息,重组能可以反应出电活性中心溶剂化环境的变化。本文旨在充分发挥宏观实验方法在分子电化学方面的研究价值。
Understanding structure changes of the electrochemically active species from molecular level can directly promote our knowledge of electrochemistry, molecular/nano electronics, electron transfer in life processes. Surface electrochemistry is a classical experimental method, and from these macroscopic results one can know some information about the molecular structure and the microscopic environment of the electrochemically active species. Hence, the transfer coefficient, the apparent number of electron transferred and the reorganization energy are surveyed in this review. The transfer coefficient is directly correlated to the interaction between molecules. The apparent number of electron transferred gives insight into the different connection modes of the subunits in the biomacromolecule. In addition, the reorganization energy can provide information about how the microscopic environment around the electro-active group changes. This paper aims at bridging the value of macroscopic experiment method to molecular electrochmeistry.
出处
《化学进展》
SCIE
CAS
CSCD
北大核心
2009年第6期1149-1153,共5页
Progress in Chemistry
基金
国家自然科学基金项目(No.20821063
20873063)资助
关键词
电化学
电子传递
转移系数
转移电子数
重组能
electrochemistry
electron transfer
transfer coefficient
number of electron transferred
reorganization energy
