Photophysics of a dithioester RAFT polymerization agent and the acenaphthenyl model light-harvesting chromophore
Photophysics of a dithioester RAFT polymerization agent and the acenaphthenyl model light-harvesting chromophore
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DOI：
10.1039/b702811c
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发表时间：
2007-01-01
影响因子：
3.1
通讯作者：
Steer, Ronald P.
中科院分区：
文献类型：
--
作者：
Kitchin, Andrew D.;Velate, Suresh;Steer, Ronald P.
研究了典型的二硫代苯甲酸酯可逆加成-断裂链转移（RAFT）聚合试剂单独在溶液中、作为电子激发态苊的猝灭剂在溶液中以及在苊给体-二硫代苯甲酸酯受体二色团中的光谱和物理性质。RAFT试剂是光激发苊的有效猝灭剂。二色团中的能量浪费通过从苊的S-1态到二硫酯的S-2态的福斯特共振电子能量转移而发生，二硫酯随后碎裂。
The spectroscopic and photophysical properties of a typical dithiobenzoate reversible addition-fragmentation chain transfer (RAFT) polymerization agent alone in solution, as a quencher of electronically excited acenaphthene in solution, and in an acenaphthene donor-dithiobenzoate acceptor dichromophore have been investigated. The RAFT agent is an effective quencher of photo-excited acenaphthene. Energy wastage in the dichromophore occurs by Forster resonant electronic energy transfer from the S-1 state of acenaphthene to the S-2 state of the dithioester, which subsequently fragments.