Porphyrin and pyropheophorbide phosphorescence in synthetic molecules that mimic photosynthetic triplet energy transfer

A. A. Krasnovsky; M. E. Bashtanov; N. N. Drozdova; P. A. Liddell; Ana Moore; Thomas Moore; D. Gust

doi:10.1016/S1010-6030(96)04467-X

Porphyrin and pyropheophorbide phosphorescence in synthetic molecules that mimic photosynthetic triplet energy transfer

A. A. Krasnovsky, M. E. Bashtanov, N. N. Drozdova, P. A. Liddell, Ana Moore, Thomas Moore, D. Gust

Molecular Sciences, School of (SMS)

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

14 Scopus citations

Abstract

Phosphorescence emission and excitation spectra and triplet lifetimes at 77 K have been obtained for a carotenoid-porphyrin-pyropheophorbide triad model for the photosynthetic triplet energy transfer relay and seven porphyrin and pyropheophorbide model compounds including methyl pyropheophorbide-a. The results confirm that triplet energy from the pyropheophorbide moiety of the triad is transferred to the carotenoid by a triplet energy relay involving endergonic transfer from the pyropheophorbide to the porphyrin, whose triplet is rapidly quenched by the carotenoid polyene.

Original language	English (US)
Pages (from-to)	157-161
Number of pages	5
Journal	Journal of Photochemistry and Photobiology A: Chemistry
Volume	102
Issue number	2-3
DOIs	https://doi.org/10.1016/S1010-6030(96)04467-X
State	Published - Jan 22 1997

Keywords

Phosphorescence
Photosynthesis
Porphyrin
Pyropheophorbide
Triplet energy transfer

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Physics and Astronomy(all)

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10.1016/S1010-6030(96)04467-X

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@article{82bc8f364a444f51b0225244fb8dffa8,

title = "Porphyrin and pyropheophorbide phosphorescence in synthetic molecules that mimic photosynthetic triplet energy transfer",

abstract = "Phosphorescence emission and excitation spectra and triplet lifetimes at 77 K have been obtained for a carotenoid-porphyrin-pyropheophorbide triad model for the photosynthetic triplet energy transfer relay and seven porphyrin and pyropheophorbide model compounds including methyl pyropheophorbide-a. The results confirm that triplet energy from the pyropheophorbide moiety of the triad is transferred to the carotenoid by a triplet energy relay involving endergonic transfer from the pyropheophorbide to the porphyrin, whose triplet is rapidly quenched by the carotenoid polyene.",

keywords = "Phosphorescence, Photosynthesis, Porphyrin, Pyropheophorbide, Triplet energy transfer",

author = "Krasnovsky, {A. A.} and Bashtanov, {M. E.} and Drozdova, {N. N.} and Liddell, {P. A.} and Ana Moore and Thomas Moore and D. Gust",

note = "Funding Information: This work was supported by the National Science Foundation, grant CHE-9413084, and the International Science Foundation, grant SPB 000. This is publication number 317 from the ASU Center for the Study of Early Events in Photosynthesis.",

year = "1997",

month = jan,

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doi = "10.1016/S1010-6030(96)04467-X",

language = "English (US)",

volume = "102",

pages = "157--161",

journal = "Journal of Photochemistry and Photobiology A: Chemistry",

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publisher = "Elsevier",

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TY - JOUR

T1 - Porphyrin and pyropheophorbide phosphorescence in synthetic molecules that mimic photosynthetic triplet energy transfer

AU - Krasnovsky, A. A.

AU - Bashtanov, M. E.

AU - Drozdova, N. N.

AU - Liddell, P. A.

AU - Moore, Ana

AU - Moore, Thomas

AU - Gust, D.

N1 - Funding Information: This work was supported by the National Science Foundation, grant CHE-9413084, and the International Science Foundation, grant SPB 000. This is publication number 317 from the ASU Center for the Study of Early Events in Photosynthesis.

PY - 1997/1/22

Y1 - 1997/1/22

N2 - Phosphorescence emission and excitation spectra and triplet lifetimes at 77 K have been obtained for a carotenoid-porphyrin-pyropheophorbide triad model for the photosynthetic triplet energy transfer relay and seven porphyrin and pyropheophorbide model compounds including methyl pyropheophorbide-a. The results confirm that triplet energy from the pyropheophorbide moiety of the triad is transferred to the carotenoid by a triplet energy relay involving endergonic transfer from the pyropheophorbide to the porphyrin, whose triplet is rapidly quenched by the carotenoid polyene.

AB - Phosphorescence emission and excitation spectra and triplet lifetimes at 77 K have been obtained for a carotenoid-porphyrin-pyropheophorbide triad model for the photosynthetic triplet energy transfer relay and seven porphyrin and pyropheophorbide model compounds including methyl pyropheophorbide-a. The results confirm that triplet energy from the pyropheophorbide moiety of the triad is transferred to the carotenoid by a triplet energy relay involving endergonic transfer from the pyropheophorbide to the porphyrin, whose triplet is rapidly quenched by the carotenoid polyene.

KW - Phosphorescence

KW - Photosynthesis

KW - Porphyrin

KW - Pyropheophorbide

KW - Triplet energy transfer

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U2 - 10.1016/S1010-6030(96)04467-X

DO - 10.1016/S1010-6030(96)04467-X

M3 - Article

AN - SCOPUS:0031583048

SN - 1010-6030

VL - 102

SP - 157

EP - 161

JO - Journal of Photochemistry and Photobiology A: Chemistry

JF - Journal of Photochemistry and Photobiology A: Chemistry

IS - 2-3

ER -

Porphyrin and pyropheophorbide phosphorescence in synthetic molecules that mimic photosynthetic triplet energy transfer

Abstract

Keywords

ASJC Scopus subject areas

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