Photoinduced Electron and Energy Transfer Processes in a Bichromophoric Pyrene−Perylene Bisimide System
作者:Başak Kükrer Kaletaş、Rainer Dobrawa、Armin Sautter、Frank Würthner、Mikhail Zimine、Luisa De Cola、René M. Williams
DOI:10.1021/jp0372688
日期:2004.3.1
processes. A high yield (>90%) and fast photoinduced energy transfer (ken ≈ 6.2 × 109 s-1) is followed by efficient electron transfer (70%, ket ≈ 6.6 × 109 s-1) from the pyrene units to the perylenebisimide moiety. The energy donor−acceptor distance, R = 8.6 A, is calculated from the experimental energy transfer rate using Forster theory. Temperature-dependent time-resolved emission spectroscopy showed