Donor energy effects on the triplet-sensitized isomerization of 11-cis-retinal

T. Rosenfeld; O. Kallsky; M. Ottolenghi

doi:10.1021/j100530a015

Donor energy effects on the triplet-sensitized isomerization of 11-cis-retinal

T. Rosenfeld
, O. Kallsky
, M. Ottolenghi^*

^*Corresponding author for this work

School of Pharmacy

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

14 Scopus citations

Abstract

The photosensitized isomerization of 11-cis-retinal was investigated over a range of donors with varying triplet energy (E_T). The photoisomerization yield (φ_iso^T) for each retinal triplet produced by energy transfer was determined using continuous and pulsed-laser excitation methods. The marked dependence of φ_iso^T on ET sets an upper limit of ∼0.1 to the isomerization yield in the thermally relaxed T₁ state. The data are interpreted in terms of an efficient isomerization path involving higher vibronic triplet levels.

Original language	English
Pages (from-to)	1496-1498
Number of pages	3
Journal	Journal of Physical Chemistry
Volume	81
Issue number	15
DOIs	https://doi.org/10.1021/j100530a015
State	Published - 1977

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title = "Donor energy effects on the triplet-sensitized isomerization of 11-cis-retinal",

abstract = "The photosensitized isomerization of 11-cis-retinal was investigated over a range of donors with varying triplet energy (ET). The photoisomerization yield (φisoT) for each retinal triplet produced by energy transfer was determined using continuous and pulsed-laser excitation methods. The marked dependence of φisoT on ET sets an upper limit of ∼0.1 to the isomerization yield in the thermally relaxed T1 state. The data are interpreted in terms of an efficient isomerization path involving higher vibronic triplet levels.",

author = "T. Rosenfeld and O. Kallsky and M. Ottolenghi",

year = "1977",

doi = "10.1021/j100530a015",

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pages = "1496--1498",

journal = "Journal of Physical Chemistry",

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T1 - Donor energy effects on the triplet-sensitized isomerization of 11-cis-retinal

AU - Rosenfeld, T.

AU - Kallsky, O.

AU - Ottolenghi, M.

PY - 1977

Y1 - 1977

N2 - The photosensitized isomerization of 11-cis-retinal was investigated over a range of donors with varying triplet energy (ET). The photoisomerization yield (φisoT) for each retinal triplet produced by energy transfer was determined using continuous and pulsed-laser excitation methods. The marked dependence of φisoT on ET sets an upper limit of ∼0.1 to the isomerization yield in the thermally relaxed T1 state. The data are interpreted in terms of an efficient isomerization path involving higher vibronic triplet levels.

AB - The photosensitized isomerization of 11-cis-retinal was investigated over a range of donors with varying triplet energy (ET). The photoisomerization yield (φisoT) for each retinal triplet produced by energy transfer was determined using continuous and pulsed-laser excitation methods. The marked dependence of φisoT on ET sets an upper limit of ∼0.1 to the isomerization yield in the thermally relaxed T1 state. The data are interpreted in terms of an efficient isomerization path involving higher vibronic triplet levels.

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DO - 10.1021/j100530a015

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AN - SCOPUS:4043129442

SN - 0022-3654

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SP - 1496

EP - 1498

JO - Journal of Physical Chemistry

JF - Journal of Physical Chemistry

IS - 15

ER -

Donor energy effects on the triplet-sensitized isomerization of 11-cis-retinal

Abstract

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