期刊
INORGANICA CHIMICA ACTA
卷 386, 期 -, 页码 73-82出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.ica.2012.02.023
关键词
Porphyrins; Cr(III) polypyridyl complexes; Spectroelectrochemistry; Flash photolysis
资金
- CONICYT [21070732, AT-24090099]
- Universidad de Chile
- FONDECYT [1100203, ICM-P10-003-F]
- Fondo de Innovacion para la Competitividad, del Ministerio de Economia, Fomento y Turismo, Chile
- Office of Basic Energy Sciences of the US Department of Energy
[FeTPyP(Crphen(2)Cl)(4)][PF6](8) and [NiTPyP(Crphen(2)Cl)(2)][PF6](8), where TPyP = 5,10,15,20- tetra-(4-pyridyl) porphyrin and phen = 1,10-phenanthroline, preparations are communicated. The complexes were characterized by UV-Vis spectroscopy, cyclic voltammetry, UV-Vis spectroelectrochemistry, elemental analysis, FT-IR, and MALDI-TOF mass spectrometry. Their photochemical reactions were investigated with the flash photolysis technique. The complexes exhibit a rich electrochemistry which includes a cathodic quasireversible process, i.e., the Cr(III)/Cr(II) couple, and two cathodic processes consistent in the sequential transfer of two electrons to the metalloporphyrins center. Porphyrin-centered excited states are generated in the flash irradiation (lambda(exc) = 351 nm) of either complex. These states are converted to other excited states or intermediates. The intermediates react with oxidants, Ru(NH3)(6)(3+), and reductants, I, TEOA, and alcohols. Charge separated intermediates or excited states with LMCT character account for the photoreactions. (C) 2012 Elsevier B. V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据