ENERGY TRANSFER FROM CAROTENOID POLYENES TO PORPHYRINS: A LIGHT‐HARVESTING ANTENNA

Ana Moore; Gary Dirks; Devens Gust; Thomas Moore

doi:10.1111/j.1751-1097.1980.tb04041.x

ENERGY TRANSFER FROM CAROTENOID POLYENES TO PORPHYRINS: A LIGHT‐HARVESTING ANTENNA

Ana Moore, Gary Dirks, Devens Gust, Thomas Moore

Research output: Contribution to journal › Article › peer-review

86 Scopus citations

Abstract

Carotenoid to porphyrin singlet‐singlet energy transfer has been observed in a new covalently linked carotenoid‐porphyrin ester. Nuclear magnetic resonance studies reveal that the relatively high energy transfer efficiency (˜ 25%) is a result of a stacked conformation in which the 26 π electron carotenoid chromophore resides ˜4–5 Å above the mean porphyrin plane. Substantial quenching of porphyrin fluorescence was also observed. Implications for the mechanism of energy transfer and possible applications to synthetic solar energy conversions systems are discussed.

Original language	English (US)
Pages (from-to)	691-695
Number of pages	5
Journal	Photochemistry and photobiology
Volume	32
Issue number	5
DOIs	https://doi.org/10.1111/j.1751-1097.1980.tb04041.x
State	Published - Nov 1980

ASJC Scopus subject areas

Biochemistry
Physical and Theoretical Chemistry

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10.1111/j.1751-1097.1980.tb04041.x

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AU - Dirks, Gary

AU - Gust, Devens

AU - Moore, Thomas

PY - 1980/11

Y1 - 1980/11

N2 - Carotenoid to porphyrin singlet‐singlet energy transfer has been observed in a new covalently linked carotenoid‐porphyrin ester. Nuclear magnetic resonance studies reveal that the relatively high energy transfer efficiency (˜ 25%) is a result of a stacked conformation in which the 26 π electron carotenoid chromophore resides ˜4–5 Å above the mean porphyrin plane. Substantial quenching of porphyrin fluorescence was also observed. Implications for the mechanism of energy transfer and possible applications to synthetic solar energy conversions systems are discussed.

AB - Carotenoid to porphyrin singlet‐singlet energy transfer has been observed in a new covalently linked carotenoid‐porphyrin ester. Nuclear magnetic resonance studies reveal that the relatively high energy transfer efficiency (˜ 25%) is a result of a stacked conformation in which the 26 π electron carotenoid chromophore resides ˜4–5 Å above the mean porphyrin plane. Substantial quenching of porphyrin fluorescence was also observed. Implications for the mechanism of energy transfer and possible applications to synthetic solar energy conversions systems are discussed.

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JO - Photochemistry and photobiology

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ER -

ENERGY TRANSFER FROM CAROTENOID POLYENES TO PORPHYRINS: A LIGHT‐HARVESTING ANTENNA

Abstract

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