Otro
Modelo de Marcus, elementos de matriz de tunelamento, efeitos de solvente e controle nuclear em reações de transferência de elétrons
Registro en:
Revista Brasileira de Ensino de Fisica, v. 35, n. 2, 2013.
0102-4744
10.1590/S1806-11172013000200015
S1806-11172013000200015
WOS:000321562100015
2-s2.0-84880660396.pdf
2-s2.0-84880660396
Autor
de Paula, Luciana Claudia
de Andrade, Paulo Cesar Peres
Leite, Vitor Barbanti Pereira
Resumen
This paper aims to give an initial presentation to physics students of the area of electron transfer, addressing its major aspects. The subject is then presented in an introductory way, highlighting and discussing the key points. Primarily, the problem is approached in a simplified manner through a two-state system, and aspects of calculating the matrix-element are discussed. Then, the electron transfer problem, influenced by nuclear reaction coordinates, is addressed and treated by the Marcus theory. Time scales and the concepts of adiabatic and nonadiabatic phenomena are discussed in the context of electron transfer. The classical, semi-classical and quantum formalisms of for the nuclear reactions coordinates are presented, and aspects of solvents are also discussed. Finally, we conclude by examining some recent examples of problems discussed in the literature.