Tetrathiafulvalene-Quinone-Tetrathiafulvalene Triad: Modulation of the Intramolecular Charge Transfer by the Electron-Transfer Process Promoted by Metal Ions

摘要

Electron transfer can occur from the TTF units to the substituted quinone unit in a new TTF-quinone-TTF triad 1 containing the N,N-dialkylaniline-substituted quinone unit flanked by two TTF units, in the presence of metal ions (Pb2+, Zn2+, and Sc3+). Simultaneously, the corresponding charge transfer within the substituted quinone unit becomes weak in the presence of metal ions. Moreover, the metal ionpromoted electron transfer and the intramolecular charge transfer can be tuned by alternating UV and visible light irradiation in the presence of spiropyran.