How Do Redox Groups Behave around a Rigid Molecular Platform? Hexa(ferrocenylethynyl)benzenes and Their "Electrostatic" Redox Chemistry

被引:110
作者
Diallo, Abdou K. [1 ]
Daran, Jean-Claude [2 ]
Varret, Francois [3 ]
Ruiz, Jaime [1 ]
Astruc, Didier [1 ]
机构
[1] Univ Bordeaux 1, CNRS, UMR 5255, Inst Mol Sci, F-33405 Talence, France
[2] CNRS, Chim Coordinat Lab, UPR 8241, F-33000 Toulouse, France
[3] CNRS, UMR 8635, Grp Etud Mat Condensee, F-78000 Versailles, France
关键词
dendrimers; electron transfer; ferrocene; ion pairs; redox chemistry; ELECTRONIC INTERACTIONS; DELTA-E-1/2; VALUES; DENDRIMERS; COMPLEXES; ACETONITRILE; FERROCENYL; META; CONSTANT; ENERGIES; POLYMERS;
D O I
10.1002/anie.200900216
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A new family of hexakis(ferrocenylethynyl)benzenes was synthesized by Negishi coupling from ethynylferrocenes and C6Br6 and can be reversibly oxidized to stable hexaferrocenium salts (see picture, Ar F=[3,5-C6H3(CF3)2]). Their cyclic voltammograms show a single six-electron wave, three distinct two-electron waves, or a cascade of six single-electron waves, depending on the electrolyte counterion and number of methyl substituents on the ferrocenyl groups. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.
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页码:3141 / 3145
页数:5
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