TY - JOUR
T1 - Photoswitchable sensitization of porphyrin excited states
AU - Straight, Stephen D.
AU - Terazono, Yuichi
AU - Kodis, Gerdenis
AU - Moore, Thomas
AU - Moore, Ana
AU - Gust, Devens
N1 - Funding Information:
This work was supported by the US National Science Foundation (CHE-0352599). This is publication 649 from the ASU Center for the Study of Early Events in Photosynthesis.
PY - 2006
Y1 - 2006
N2 - Light-driven molecular switches consisting of a porphyrin covalently linked to a fulgimide photochrome antenna have been prepared. Light absorbed by the cyclic form of the fulgimide is transferred to the porphyrin with ? 95% efficiency, generating the porphyrin first excited singlet state. Irradiation with visible light photoisomerizes the fulgimide to the open form, which does not absorb above 450 nm, and antenna function is abolished. UV irradiation converts the fulgimide back into the cyclic form, re-establishing efficient energy transfer. Photoisomerization of the fulgimide thus controls generation of the porphyrin excited state, which may then be used to carry out a variety of useful photochemical processes.
AB - Light-driven molecular switches consisting of a porphyrin covalently linked to a fulgimide photochrome antenna have been prepared. Light absorbed by the cyclic form of the fulgimide is transferred to the porphyrin with ? 95% efficiency, generating the porphyrin first excited singlet state. Irradiation with visible light photoisomerizes the fulgimide to the open form, which does not absorb above 450 nm, and antenna function is abolished. UV irradiation converts the fulgimide back into the cyclic form, re-establishing efficient energy transfer. Photoisomerization of the fulgimide thus controls generation of the porphyrin excited state, which may then be used to carry out a variety of useful photochemical processes.
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U2 - 10.1071/CH05310
DO - 10.1071/CH05310
M3 - Article
AN - SCOPUS:33645219474
VL - 59
SP - 170
EP - 174
JO - Australian Journal of Chemistry
JF - Australian Journal of Chemistry
SN - 0004-9425
IS - 3
ER -