A Time-Resolved Spectroscopic Investigation of a Novel BODIPY Copolymer and Its Potential Use as a Photosensitiser for Hydrogen Evolution

A novel 4,4-difuoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) copolymer with diethynylbenzene has been synthesised, and its ability to act as a photosensitiser for the photocatalytic generation of hydrogen was investigated by time-resolved spectroscopic techniques spanning the ps- to ns-timescales. Bot...

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Autores principales: Cullen, Aoibhín A., Heintz, Katharina, O'Reilly, Laura, Long, Conor, Heise, Andreas, Murphy, Robert, Karlsson, Joshua, Gibson, Elizabeth, Greetham, Gregory M., Towrie, Michael, Pryce, Mary T.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2020
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7604388/
https://www.ncbi.nlm.nih.gov/pubmed/33195076
http://dx.doi.org/10.3389/fchem.2020.584060
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author Cullen, Aoibhín A.
Heintz, Katharina
O'Reilly, Laura
Long, Conor
Heise, Andreas
Murphy, Robert
Karlsson, Joshua
Gibson, Elizabeth
Greetham, Gregory M.
Towrie, Michael
Pryce, Mary T.
author_facet Cullen, Aoibhín A.
Heintz, Katharina
O'Reilly, Laura
Long, Conor
Heise, Andreas
Murphy, Robert
Karlsson, Joshua
Gibson, Elizabeth
Greetham, Gregory M.
Towrie, Michael
Pryce, Mary T.
author_sort Cullen, Aoibhín A.
collection PubMed
description A novel 4,4-difuoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) copolymer with diethynylbenzene has been synthesised, and its ability to act as a photosensitiser for the photocatalytic generation of hydrogen was investigated by time-resolved spectroscopic techniques spanning the ps- to ns-timescales. Both transient absorption and time-resolved infrared spectroscopy were used to probe the excited state dynamics of this photosensitising unit in a variety of solvents. These studies indicated how environmental factors can influence the photophysics of the BODIPY polymer. A homogeneous photocatalytic hydrogen evolution system has been developed using the BODIPY copolymer and cobaloxime which provides hydrogen evolution rates of 319 μmol h(−1) g(−1) after 24 h of visible irradiation.
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spelling pubmed-76043882020-11-13 A Time-Resolved Spectroscopic Investigation of a Novel BODIPY Copolymer and Its Potential Use as a Photosensitiser for Hydrogen Evolution Cullen, Aoibhín A. Heintz, Katharina O'Reilly, Laura Long, Conor Heise, Andreas Murphy, Robert Karlsson, Joshua Gibson, Elizabeth Greetham, Gregory M. Towrie, Michael Pryce, Mary T. Front Chem Chemistry A novel 4,4-difuoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) copolymer with diethynylbenzene has been synthesised, and its ability to act as a photosensitiser for the photocatalytic generation of hydrogen was investigated by time-resolved spectroscopic techniques spanning the ps- to ns-timescales. Both transient absorption and time-resolved infrared spectroscopy were used to probe the excited state dynamics of this photosensitising unit in a variety of solvents. These studies indicated how environmental factors can influence the photophysics of the BODIPY polymer. A homogeneous photocatalytic hydrogen evolution system has been developed using the BODIPY copolymer and cobaloxime which provides hydrogen evolution rates of 319 μmol h(−1) g(−1) after 24 h of visible irradiation. Frontiers Media S.A. 2020-10-19 /pmc/articles/PMC7604388/ /pubmed/33195076 http://dx.doi.org/10.3389/fchem.2020.584060 Text en Copyright © 2020 Cullen, Heintz, O'Reilly, Long, Heise, Murphy, Karlsson, Gibson, Greetham, Towrie and Pryce. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Chemistry
Cullen, Aoibhín A.
Heintz, Katharina
O'Reilly, Laura
Long, Conor
Heise, Andreas
Murphy, Robert
Karlsson, Joshua
Gibson, Elizabeth
Greetham, Gregory M.
Towrie, Michael
Pryce, Mary T.
A Time-Resolved Spectroscopic Investigation of a Novel BODIPY Copolymer and Its Potential Use as a Photosensitiser for Hydrogen Evolution
title A Time-Resolved Spectroscopic Investigation of a Novel BODIPY Copolymer and Its Potential Use as a Photosensitiser for Hydrogen Evolution
title_full A Time-Resolved Spectroscopic Investigation of a Novel BODIPY Copolymer and Its Potential Use as a Photosensitiser for Hydrogen Evolution
title_fullStr A Time-Resolved Spectroscopic Investigation of a Novel BODIPY Copolymer and Its Potential Use as a Photosensitiser for Hydrogen Evolution
title_full_unstemmed A Time-Resolved Spectroscopic Investigation of a Novel BODIPY Copolymer and Its Potential Use as a Photosensitiser for Hydrogen Evolution
title_short A Time-Resolved Spectroscopic Investigation of a Novel BODIPY Copolymer and Its Potential Use as a Photosensitiser for Hydrogen Evolution
title_sort time-resolved spectroscopic investigation of a novel bodipy copolymer and its potential use as a photosensitiser for hydrogen evolution
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7604388/
https://www.ncbi.nlm.nih.gov/pubmed/33195076
http://dx.doi.org/10.3389/fchem.2020.584060
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