Characterization of the Giant Transient Dipole Generated by Photoinduced Electron Transfer in a Carotene-Porphyrin-Fullerene Molecular Triad

Sergei N. Smirnov; Paul A. Liddell; Ivan V. Vlassiouk; Alexey Teslja; Darius Kuciauskas; Charles L. Braun; Ana L. Moore; Thomas A. Moore; Devens Gust

doi:10.1021/jp034532o

Characterization of the Giant Transient Dipole Generated by Photoinduced Electron Transfer in a Carotene-Porphyrin-Fullerene Molecular Triad

Sergei N. Smirnov, Paul A. Liddell, Ivan V. Vlassiouk, Alexey Teslja, Darius Kuciauskas, Charles L. Braun, Ana L. Moore, Thomas A. Moore, Devens Gust

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

45 Scopus citations

Abstract

Excitation of a carotenoid (C) porphyrin (P) fullerene (C₆₀) molecular triad yields the poiphyrin first excited singlet state, C- ¹P-C⁶⁰, which decays via a sequential two-step photoinduced electron-transfer process into a C^•+-P-C ₆₀^•- charge-separated state with a lifetime of 340 ns in 2-methyltetrahydrofuran solution. The transient dc photocurrent method has been used to investigate the dipole moment of the charge-separated state in tetrahydrofuran and 2-methyltetrahydrofuran. The results show formation of a giant dipole with a moment in excess of 150 D, corresponding to separated charges located on the fullerene and carotene moieties of the triad.

Original language	English
Pages (from-to)	7567-7573
Number of pages	7
Journal	Journal of Physical Chemistry A
Volume	107
Issue number	38
DOIs	https://doi.org/10.1021/jp034532o
State	Published - Sep 25 2003
Externally published	Yes

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@article{e663346cfed144cf8a517331dced6bfc,

title = "Characterization of the Giant Transient Dipole Generated by Photoinduced Electron Transfer in a Carotene-Porphyrin-Fullerene Molecular Triad",

abstract = "Excitation of a carotenoid (C) porphyrin (P) fullerene (C60) molecular triad yields the poiphyrin first excited singlet state, C- 1P-C60, which decays via a sequential two-step photoinduced electron-transfer process into a C•+-P-C 60•- charge-separated state with a lifetime of 340 ns in 2-methyltetrahydrofuran solution. The transient dc photocurrent method has been used to investigate the dipole moment of the charge-separated state in tetrahydrofuran and 2-methyltetrahydrofuran. The results show formation of a giant dipole with a moment in excess of 150 D, corresponding to separated charges located on the fullerene and carotene moieties of the triad.",

author = "Smirnov, \{Sergei N.\} and Liddell, \{Paul A.\} and Vlassiouk, \{Ivan V.\} and Alexey Teslja and Darius Kuciauskas and Braun, \{Charles L.\} and Moore, \{Ana L.\} and Moore, \{Thomas A.\} and Devens Gust",

year = "2003",

month = sep,

day = "25",

doi = "10.1021/jp034532o",

language = "English",

volume = "107",

pages = "7567--7573",

journal = "Journal of Physical Chemistry A",

issn = "1089-5639",

publisher = "American Chemical Society",

number = "38",

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TY - JOUR

T1 - Characterization of the Giant Transient Dipole Generated by Photoinduced Electron Transfer in a Carotene-Porphyrin-Fullerene Molecular Triad

AU - Smirnov, Sergei N.

AU - Liddell, Paul A.

AU - Vlassiouk, Ivan V.

AU - Teslja, Alexey

AU - Kuciauskas, Darius

AU - Braun, Charles L.

AU - Moore, Ana L.

AU - Moore, Thomas A.

AU - Gust, Devens

PY - 2003/9/25

Y1 - 2003/9/25

N2 - Excitation of a carotenoid (C) porphyrin (P) fullerene (C60) molecular triad yields the poiphyrin first excited singlet state, C- 1P-C60, which decays via a sequential two-step photoinduced electron-transfer process into a C•+-P-C 60•- charge-separated state with a lifetime of 340 ns in 2-methyltetrahydrofuran solution. The transient dc photocurrent method has been used to investigate the dipole moment of the charge-separated state in tetrahydrofuran and 2-methyltetrahydrofuran. The results show formation of a giant dipole with a moment in excess of 150 D, corresponding to separated charges located on the fullerene and carotene moieties of the triad.

AB - Excitation of a carotenoid (C) porphyrin (P) fullerene (C60) molecular triad yields the poiphyrin first excited singlet state, C- 1P-C60, which decays via a sequential two-step photoinduced electron-transfer process into a C•+-P-C 60•- charge-separated state with a lifetime of 340 ns in 2-methyltetrahydrofuran solution. The transient dc photocurrent method has been used to investigate the dipole moment of the charge-separated state in tetrahydrofuran and 2-methyltetrahydrofuran. The results show formation of a giant dipole with a moment in excess of 150 D, corresponding to separated charges located on the fullerene and carotene moieties of the triad.

UR - https://www.scopus.com/pages/publications/0141959672

U2 - 10.1021/jp034532o

DO - 10.1021/jp034532o

M3 - Article

AN - SCOPUS:0141959672

SN - 1089-5639

VL - 107

SP - 7567

EP - 7573

JO - Journal of Physical Chemistry A

JF - Journal of Physical Chemistry A

IS - 38

ER -

Characterization of the Giant Transient Dipole Generated by Photoinduced Electron Transfer in a Carotene-Porphyrin-Fullerene Molecular Triad

Abstract

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