Multi‐Electron‐Acceptor Dyad and Triad Systems Based on Perylene Bisimides and Fullerenes
作者:Thomas W. Chamberlain、E. Stephen Davies、Andrei N. Khlobystov、Neil R. Champness
DOI:10.1002/chem.201003092
日期:2011.3.21
Fullerene (C60) and 3,4,9,10‐perylenetetracarboxylicdiimide (PTDCI) were used as building blocks for an electron acceptor dyad (C60–PTCDI) and triad (C60–PTCDI–C60). As the first reduction potentials for C60 and PTCDI are very close, simultaneous introduction of two or three electrons is possible into the dyad and triad, respectively. Further stepwise electrochemical reduction leads to formation
Perylene bisimide derivatives substituted with one and two tetraphenylethene moieties at 1 and 1,7-postions show distinct optical properties. The former displays characteristic emission features of perylene bisimides in solution and red emission in the aggregate state, while the latter is nonemissive in solution but highly red-emissive in the aggregate state.