Photonic Control of Photoinduced Electron Transfer via Switching of Redox Potentials in a Photochromic Moiety

Yuichi Terazono, Gerdenis Kodis, Joakim Andréasson, Goojin Jeong, Alicia Brune, Thomas Hartmann, Heinz Dürr, Ana L Moore, Thomas A Moore, John Devens Gust

Research output: Contribution to journalArticle

72 Citations (Scopus)

Abstract

A porphyrin (P) has been covalently linked to a photochromic dihydroindolizine moiety (DHI) to form a P-DHI dyad. When the dihydroindolizine is in its closed, spirocyclic form (DHIc), the photophysics of the attached porphyrin are unaffected. Irradiation with UV light opens the photochromic moiety to the betaine from (DHIo), which has a significantly higher reduction potential than DHIc. Light absorption by the porphyrin moiety of P-DHIo is followed by rapid (50 ps) photoinduced electron transfer to yield the P .+-DHIo .- charge-separated state This state recombines in 2.9 ps to give the ground state. Irradiation of P-DHIo with light at wavelengths >590 nm induces photoisomerization back to P-DHIc. Thermal closing can also be achieved. Thus, light is used to switch photoinduced electron transfer on or off. These principles may be useful in the design of molecular optoelectronic devices.

Original languageEnglish
Pages (from-to)1812-1814
Number of pages3
JournalJournal of Physical Chemistry B
Volume108
Issue number6
Publication statusPublished - Feb 12 2004

Fingerprint

Porphyrins
porphyrins
Photonics
electron transfer
photonics
Electrons
Irradiation
Betaines
Photoisomerization
Betaine
betaines
irradiation
closing
electromagnetic absorption
optoelectronic devices
Ultraviolet radiation
Optoelectronic devices
Light absorption
Ground state
Switches

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Terazono, Y., Kodis, G., Andréasson, J., Jeong, G., Brune, A., Hartmann, T., ... Gust, J. D. (2004). Photonic Control of Photoinduced Electron Transfer via Switching of Redox Potentials in a Photochromic Moiety. Journal of Physical Chemistry B, 108(6), 1812-1814.

Photonic Control of Photoinduced Electron Transfer via Switching of Redox Potentials in a Photochromic Moiety. / Terazono, Yuichi; Kodis, Gerdenis; Andréasson, Joakim; Jeong, Goojin; Brune, Alicia; Hartmann, Thomas; Dürr, Heinz; Moore, Ana L; Moore, Thomas A; Gust, John Devens.

In: Journal of Physical Chemistry B, Vol. 108, No. 6, 12.02.2004, p. 1812-1814.

Research output: Contribution to journalArticle

Terazono, Y, Kodis, G, Andréasson, J, Jeong, G, Brune, A, Hartmann, T, Dürr, H, Moore, AL, Moore, TA & Gust, JD 2004, 'Photonic Control of Photoinduced Electron Transfer via Switching of Redox Potentials in a Photochromic Moiety', Journal of Physical Chemistry B, vol. 108, no. 6, pp. 1812-1814.
Terazono Y, Kodis G, Andréasson J, Jeong G, Brune A, Hartmann T et al. Photonic Control of Photoinduced Electron Transfer via Switching of Redox Potentials in a Photochromic Moiety. Journal of Physical Chemistry B. 2004 Feb 12;108(6):1812-1814.
Terazono, Yuichi ; Kodis, Gerdenis ; Andréasson, Joakim ; Jeong, Goojin ; Brune, Alicia ; Hartmann, Thomas ; Dürr, Heinz ; Moore, Ana L ; Moore, Thomas A ; Gust, John Devens. / Photonic Control of Photoinduced Electron Transfer via Switching of Redox Potentials in a Photochromic Moiety. In: Journal of Physical Chemistry B. 2004 ; Vol. 108, No. 6. pp. 1812-1814.
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