Journal of Physical Chemistry Letters, volume 2, issue 3, pages 223-227

Intersystem Crossing in Halogenated Bodipy Chromophores Used for Solar Hydrogen Production

Sabatini Randy P 1
McCormick Theresa M. 1
Wilson Kristina C 1
Eisenberg Richard B. 1
McCamant David W. 1
1
 
Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
Publication typeJournal Article
Publication date2011-01-19
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor5.7
ISSN19487185
Physical and Theoretical Chemistry
General Materials Science
Abstract
A series of halogenated boron-dipyrromethene (Bodipy) chromophores with potential applications in solar energy conversion were synthesized and characterized by steady state and ultrafast laser spectroscopy. The ultrafast dynamics of the chromophores were compared between a series containing H, Br, or I at the 2,6 positions of the Bodipy dye. The parent Bodipy has a fluorescent lifetime (τfl) of 3−5 ns, a fluorescence quantum yield (Φfl) of 0.56, and negligible triplet state yield. Bromination enhances the intersystem crossing (ISC) such that τfl and Φfl decrease to ∼1.2 ns and 0.11, respectively, while iodination further accelerates ISC so that τfl is only ∼130 ps and Φfl is 0.011. Transient absorption experiments lead to the observation of excited state absorption bands from the singlet (S1) and triplet (T1) states at ∼345 and 447 nm, respectively, and characterization of ISC via the dynamics of these bands and the decay of S1 stimulated emission.

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Sabatini R. P. et al. Intersystem Crossing in Halogenated Bodipy Chromophores Used for Solar Hydrogen Production // Journal of Physical Chemistry Letters. 2011. Vol. 2. No. 3. pp. 223-227.
GOST all authors (up to 50) Copy
Sabatini R. P., McCormick T. M., Lazarides T., Wilson K. C., Eisenberg R. B., McCamant D. W. Intersystem Crossing in Halogenated Bodipy Chromophores Used for Solar Hydrogen Production // Journal of Physical Chemistry Letters. 2011. Vol. 2. No. 3. pp. 223-227.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1021/jz101697y
UR - https://doi.org/10.1021%2Fjz101697y
TI - Intersystem Crossing in Halogenated Bodipy Chromophores Used for Solar Hydrogen Production
T2 - Journal of Physical Chemistry Letters
AU - Wilson, Kristina C
AU - Sabatini, Randy P
AU - McCormick, Theresa M.
AU - Lazarides, Theodore
AU - Eisenberg, Richard B.
AU - McCamant, David W.
PY - 2011
DA - 2011/01/19 00:00:00
PB - American Chemical Society (ACS)
SP - 223-227
IS - 3
VL - 2
SN - 1948-7185
ER -
BibTex |
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BibTex Copy
@article{2011_Sabatini,
author = {Kristina C Wilson and Randy P Sabatini and Theresa M. McCormick and Theodore Lazarides and Richard B. Eisenberg and David W. McCamant},
title = {Intersystem Crossing in Halogenated Bodipy Chromophores Used for Solar Hydrogen Production},
journal = {Journal of Physical Chemistry Letters},
year = {2011},
volume = {2},
publisher = {American Chemical Society (ACS)},
month = {jan},
url = {https://doi.org/10.1021%2Fjz101697y},
number = {3},
pages = {223--227},
doi = {10.1021/jz101697y}
}
MLA
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MLA Copy
Sabatini, Randy P., et al. “Intersystem Crossing in Halogenated Bodipy Chromophores Used for Solar Hydrogen Production.” Journal of Physical Chemistry Letters, vol. 2, no. 3, Jan. 2011, pp. 223-227. https://doi.org/10.1021%2Fjz101697y.
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