Metal Linkage Effects on Ultrafast Energy Transfer

被引：10
作者：
Dekkiche, Herve [1 ]
Buisson, Antoine [2 ]
Langlois, Adam [2 ]
Karsenti, Paul-Ludovic [2 ]
Ruhlmann, Laurent [1 ]
Ruppert, Romain [1 ]
Harvey, Pierre [2 ]
机构：
[1] Univ Strasbourg, Inst Chim, CNRS, UMR 7177, 4 Rue Blaise Pascal, F-67000 Strasbourg, France
[2] Univ Sherbrooke, Dept Chim, Sherbrooke, PQ J1K 2R1, Canada
来源：
CHEMISTRY-A EUROPEAN JOURNAL | 2016年 / 22卷 / 30期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Forster and Dexter mechanisms; platinum; porphyrinoids; singlet energy transfer; PORPHYRIN DIMERS; ELECTROCHEMICAL PROPERTIES; ELECTRONIC COMMUNICATION; EXCITATION-ENERGY; SINGLET; PHTHALOCYANINE; DIPORPHYRINS; DEPENDENCE; NITROGEN; ARRAYS;
D O I：
10.1002/chem.201601322
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We report the preparation of several new porphyrin homodimers bridged by a platinum(II) ion in which very intense electronic communication through the coordination link occurs. Moreover, the synthesis of a new porphyrin dyad and its photophysical properties are reported. This dyad exhibits the fastest singlet energy transfer ever reported for synthetic systems between a zinc(II) porphyrin and a porphyrin free base. This extremely fast transfer (approximate to 100 femtoseconds) is in the same range as the fastest one measured in natural systems. This feature is due to the platinum(II) linker, which allows for strong MO couplings between the two porphyrin units as experimentally supported by electrochemistry and corroborated by DFT computations.
引用
收藏
页码：10484 / 10493
页数：10
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