Gated intramolecular electron transfer

The intramolecular electron transfer in the closed-ring isomer of the dyad was attributed to a transfer from the perylenebisimide chromo-phore to the dithienylethene unit. The dyad (100) is useful for ultra-high-density optimal memories and super-high-resolution fluorescence imaging. The triad (101) showed the key functionalities of an optical transistor. Gating and amplification could be operated with photons instead of electrons. 

Oike T, Kurata T, Takimiya K et al (2005) Polyether-bridged sexithiophene as a complexa-tion-gated molecular wire for intramolecular photoinduced electron transfer. J Am Chem Soc 127 15372-15373... 

T. Oike, T. Kurata, K. Takimiya, T. Otsubo, Y. Aso, H. Zhang, Y. Araki and O. Ito, Polyether-bridged sexithio-phene as a complexation-gated molecular wire for intramolecular photoinduced electron transfer, J. Am. Chem. Soc., 127, 15372-15373 (2005). 

Dorfman et al have used theoretical models to examine the probabilities of photoinduced charge separation in solid matrices which are relatively concentrated in acceptors ([donor) [acceptor]). " Hoffman et al have presented a readable discussion of the coupling between slow nuclear motions of environmental species, such as might be the case for some conformational changes, and electron transfer processes.Such coupling has been labeled gated electron transfer. Simon and Su have used the fluorescence Stokes shift, band shape, and decay kinetics of 6w-(dimethylaminophenyl)-sulfone, which has a twisted intramolecular charge transfer excited state, to examine... 

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