Kitchin Andrew D, Velate Suresh, Chen Ming, Ghiggino Kenneth P, Smith Trevor A, Steer Ronald P
Department of Chemistry, University of Saskatchewan, Saskatoon, SK, Canada S7N 5C9.
Photochem Photobiol Sci. 2007 Aug;6(8):853-6. doi: 10.1039/b702811c. Epub 2007 Jun 6.
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 Förster resonant electronic energy transfer from the S1 state of acenaphthene to the S2 state of the dithioester, which subsequently fragments.
研究了典型的二硫代苯甲酸酯可逆加成-断裂链转移（RAFT）聚合剂在溶液中的光谱和光物理性质，其作为溶液中电子激发苊的猝灭剂，以及在苊供体-二硫代苯甲酸酯受体双色团中的相关性质。该RAFT试剂是光激发苊的有效猝灭剂。双色团中的能量损耗通过Förster共振电子能量转移发生，从苊的S1态转移到二硫代酯的S2态，随后二硫代酯发生断裂。
