A (π-Extended Tetrathiafulvalene)−Fluorene Conjugate. Unusual Electrochemistry and Charge Transfer Properties: The First Observation of a Covalent D<sup>2+</sup>−σ−A<sup>•</sup><sup>-</sup> Redox State<sup>1</sup>
作者:Dmitrii F. Perepichka、Martin R. Bryce、Igor F. Perepichka、Svetlana B. Lyubchik、Christian A. Christensen、Nicolas Godbert、Andrei S. Batsanov、Eric Levillain、Eric J. L. McInnes、Jing P. Zhao
DOI:10.1021/ja012518o
日期:2002.11.1
amphoteric TTFAQ-sigma-A compounds (TTFAQ = 9,10-bis(1,3-dithiol-2-ylidene)-9,10-dihydroanthracene, sigma = saturated spacer, A = polynitrofluorene acceptor) is reported. Their solution redox behavior is characterized by three single-electron reduction and one two-electron oxidation waves. Electrochemical quasireversibility of the TTFAQ(2+) state and a low E(ox) - E(red) gap ( approximately 0.25 V) for
报道了新型电化学两性 TTFAQ-sigma-A 化合物(TTFAQ = 9,10-双(1,3-二硫醇-2-亚基)-9,10-二氢蒽,sigma = 饱和间隔基,A = 聚硝基芴受体)的合成. 它们的溶液氧化还原行为的特点是三个单电子还原波和一个双电子氧化波。3-(9-dicyanomethylene-4,5,7-trinitrofluorene-2-sulfonyl)-propionic 的 TTFAQ(2+) 状态和低 E(ox) - E(red) 间隙(约 0.25 V)的电化学准可逆性酸 2-[10-(4,5-二甲基-[1,3]dithiol-2-ylidene)-9,10-dihydroanthracen-9-ylidene]-5-methyl-[1,3]dithiol-4-ylmethyl酯 (10) 能够电化学生成迄今为止未知的瞬态 D(2+)-sigma-A(.-) 状态,