Xu Hai-Jun, Bonnot Antoine, Karsenti Paul-Ludovic, Langlois Adam, Abdelhameed Mohammed, Barbe Jean-Michel, Gros Claude P, Harvey Pierre D
Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB, UMR 6302), Université de Bourgogne, Dijon, France.
Dalton Trans. 2014 Jun 14;43(22):8219-29. doi: 10.1039/c3dt53630k.
The antenna process from an energy donor (BODIPY; 4',4'-difluoro-1',3',5',7'-tetramethyl-4'-bora-3a',4a'-diaza-s-indacene) in its singlet state to two acceptors (two zinc(II) 5,15-p-tolyl-10-phenylporphyrin) bridged by a central truxene residue (5',5'',10',10'',15',15''-hexabutyltruxene), 5, has been analysed by means of comparison of the energy transfer rates with those of a structurally similar β-substituted BODIPY-(zinc(II) 5,10,15-p-tolyl-porphyrin), 6, where no conjugation is present between the donor and the two acceptors using the Förster resonance energy transfer (FRET) approximation. It is estimated that the energy transfer in operates mostly via a Dexter mechanism (>99%), and the remaining proceeds via a Förster mechanism (<1%). This information is useful for the design of future molecular devices aimed at harvesting light.
通过将能量转移速率与结构相似的β-取代硼二吡咯-（锌（II）5,10,15-对甲苯基卟啉）（6）的能量转移速率进行比较，利用Förster共振能量转移（FRET）近似方法，分析了处于单重态的能量供体（BODIPY；4',4'-二氟-1',3',5',7'-四甲基-4'-硼-3a',4a'-二氮杂-s-茚）的天线过程向由中心连苯三酚残基（5',5'',10',10'',15',15''-六丁基连苯三酚）桥接的两个受体（两个锌（II）5,15-对甲苯基-10-苯基卟啉）的能量转移。据估计，能量转移主要通过Dexter机制进行（>99%），其余部分通过Förster机制进行（<1%）。该信息对于设计未来旨在收集光的分子器件很有用。
