Dynamics of Photoinduced Electron Transfer in an Amphiphilic A<sup>2+</sup>-S-D Triad Molecule
作者:Masaru Sakomura、Su Lin、Thomas A. Moore、Ana L. Moore、Devens Gust、Masamichi Fujihira
DOI:10.1021/jp012566v
日期:2002.3.1
An amphiphilic A2+-S-D triad molecule and its reference compounds, S−D, A2+-S, and S type molecules, were synthesized and studied using time-resolved transient absorption spectroscopy. The three moieties in the triad, i.e., an electron acceptor moiety (A2+, viologen), a sensitizer moiety (S, perylene), and an electron donor moiety (D, ferrocene), were linearly combined by sigma-bonded tunneling bridges
使用时间分辨瞬态吸收光谱合成和研究了两亲性 A2+-SD 三元组分子及其参考化合物 S-D、A2+-S 和 S 型分子。三元组中的三个部分,即电子受体部分(A2+,紫罗碱)、敏化剂部分(S,苝)和电子供体部分(D,二茂铁),通过 σ 键隧穿桥进行线性组合。分子内电子转移反应由S 部分光激发为1S* 引发,并形成长寿命的最终电荷分离态A•+-SD•+。虽然初始电荷分离状态 A•+-S•+-D 的产率非常高 (0.93),但最终电荷分离状态的总产率约为 0.93。0.2。