A synthetic system mimicking the energy transfer and charge separation of natural photosynthesis

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

A synthetic molecular triad consisting of a porphyrin P linked to both a quinone Q and a carotenoid polyene C has been prepared as a mimic of natural photosynthesis for solar energy conversion purposes. Laser flash excitation of the porphyrin moiety yields a charge-separated state C-P-Q within 100 ps with a quantum yield of more than 0.25. This charge-separated state has a lifetime on the microsecond time scale in suitable solvents. The triad also models photosynthetic antenna function and photo-protection from singlet oxygen damage. The successful biomimicry of photo-synthetic charge separation is in part the result of multistep electron transfers which rapidly separate the charges and leave the system at high potential, but with a considerable barrier to recombination.

Original languageEnglish
Pages (from-to)173-184
Number of pages12
JournalJournal of Photochemistry
Volume29
Issue number1-2
DOIs
Publication statusPublished - 1985

Fingerprint

Photosynthesis
Porphyrins
Energy transfer
Polyenes
Singlet Oxygen
Quantum yield
Carotenoids
Energy conversion
Solar energy
Antennas
Electrons
Lasers
benzoquinone

Cite this

@article{2840ea36af3b429385dadebe64627d8a,
title = "A synthetic system mimicking the energy transfer and charge separation of natural photosynthesis",
abstract = "A synthetic molecular triad consisting of a porphyrin P linked to both a quinone Q and a carotenoid polyene C has been prepared as a mimic of natural photosynthesis for solar energy conversion purposes. Laser flash excitation of the porphyrin moiety yields a charge-separated state C+·-P-Q-· within 100 ps with a quantum yield of more than 0.25. This charge-separated state has a lifetime on the microsecond time scale in suitable solvents. The triad also models photosynthetic antenna function and photo-protection from singlet oxygen damage. The successful biomimicry of photo-synthetic charge separation is in part the result of multistep electron transfers which rapidly separate the charges and leave the system at high potential, but with a considerable barrier to recombination.",
author = "Gust, {John Devens} and Moore, {Thomas A}",
year = "1985",
doi = "10.1016/0047-2670(85)87069-6",
language = "English",
volume = "29",
pages = "173--184",
journal = "Journal of Photochemistry",
issn = "0047-2670",
publisher = "Elsevier Sequoia",
number = "1-2",

}

TY - JOUR

T1 - A synthetic system mimicking the energy transfer and charge separation of natural photosynthesis

AU - Gust, John Devens

AU - Moore, Thomas A

PY - 1985

Y1 - 1985

N2 - A synthetic molecular triad consisting of a porphyrin P linked to both a quinone Q and a carotenoid polyene C has been prepared as a mimic of natural photosynthesis for solar energy conversion purposes. Laser flash excitation of the porphyrin moiety yields a charge-separated state C+·-P-Q-· within 100 ps with a quantum yield of more than 0.25. This charge-separated state has a lifetime on the microsecond time scale in suitable solvents. The triad also models photosynthetic antenna function and photo-protection from singlet oxygen damage. The successful biomimicry of photo-synthetic charge separation is in part the result of multistep electron transfers which rapidly separate the charges and leave the system at high potential, but with a considerable barrier to recombination.

AB - A synthetic molecular triad consisting of a porphyrin P linked to both a quinone Q and a carotenoid polyene C has been prepared as a mimic of natural photosynthesis for solar energy conversion purposes. Laser flash excitation of the porphyrin moiety yields a charge-separated state C+·-P-Q-· within 100 ps with a quantum yield of more than 0.25. This charge-separated state has a lifetime on the microsecond time scale in suitable solvents. The triad also models photosynthetic antenna function and photo-protection from singlet oxygen damage. The successful biomimicry of photo-synthetic charge separation is in part the result of multistep electron transfers which rapidly separate the charges and leave the system at high potential, but with a considerable barrier to recombination.

UR - http://www.scopus.com/inward/record.url?scp=0007939188&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0007939188&partnerID=8YFLogxK

U2 - 10.1016/0047-2670(85)87069-6

DO - 10.1016/0047-2670(85)87069-6

M3 - Article

VL - 29

SP - 173

EP - 184

JO - Journal of Photochemistry

JF - Journal of Photochemistry

SN - 0047-2670

IS - 1-2

ER -