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Capturing photochemical and photophysical transformations in iron complexes with ultrafast X-ray spectroscopy and scattering
Light-driven chemical transformations provide a compelling approach to understanding chemical reactivity with the potential to use this understanding to advance solar energy and catalysis applications. Capturing the non-equilibrium trajectories of electronic excited states with precision, particular...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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The Royal Society of Chemistry
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8208315/ https://www.ncbi.nlm.nih.gov/pubmed/34194691 http://dx.doi.org/10.1039/d1sc01864g |
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author | Gaffney, Kelly J. |
author_facet | Gaffney, Kelly J. |
author_sort | Gaffney, Kelly J. |
collection | PubMed |
description | Light-driven chemical transformations provide a compelling approach to understanding chemical reactivity with the potential to use this understanding to advance solar energy and catalysis applications. Capturing the non-equilibrium trajectories of electronic excited states with precision, particularly for transition metal complexes, would provide a foundation for advancing both of these objectives. Of particular importance for 3d metal compounds is characterizing the population dynamics of charge-transfer (CT) and metal-centered (MC) electronic excited states and understanding how the inner coordination sphere structural dynamics mediate the interaction between these states. Recent advances in ultrafast X-ray laser science has enabled the electronic excited state dynamics in 3d metal complexes to be followed with unprecedented detail. This review will focus on simultaneous X-ray emission spectroscopy (XES) and X-ray solution scattering (XSS) studies of iron coordination and organometallic complexes. These simultaneous XES-XSS studies have provided detailed insight into the mechanism of light-induced spin crossover in iron coordination compounds, the interaction of CT and MC excited states in iron carbene photosensitizers, and the mechanism of Fe–S bond dissociation in cytochrome c. |
format | Online Article Text |
id | pubmed-8208315 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-82083152021-06-29 Capturing photochemical and photophysical transformations in iron complexes with ultrafast X-ray spectroscopy and scattering Gaffney, Kelly J. Chem Sci Chemistry Light-driven chemical transformations provide a compelling approach to understanding chemical reactivity with the potential to use this understanding to advance solar energy and catalysis applications. Capturing the non-equilibrium trajectories of electronic excited states with precision, particularly for transition metal complexes, would provide a foundation for advancing both of these objectives. Of particular importance for 3d metal compounds is characterizing the population dynamics of charge-transfer (CT) and metal-centered (MC) electronic excited states and understanding how the inner coordination sphere structural dynamics mediate the interaction between these states. Recent advances in ultrafast X-ray laser science has enabled the electronic excited state dynamics in 3d metal complexes to be followed with unprecedented detail. This review will focus on simultaneous X-ray emission spectroscopy (XES) and X-ray solution scattering (XSS) studies of iron coordination and organometallic complexes. These simultaneous XES-XSS studies have provided detailed insight into the mechanism of light-induced spin crossover in iron coordination compounds, the interaction of CT and MC excited states in iron carbene photosensitizers, and the mechanism of Fe–S bond dissociation in cytochrome c. The Royal Society of Chemistry 2021-06-01 /pmc/articles/PMC8208315/ /pubmed/34194691 http://dx.doi.org/10.1039/d1sc01864g Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/ |
spellingShingle | Chemistry Gaffney, Kelly J. Capturing photochemical and photophysical transformations in iron complexes with ultrafast X-ray spectroscopy and scattering |
title | Capturing photochemical and photophysical transformations in iron complexes with ultrafast X-ray spectroscopy and scattering |
title_full | Capturing photochemical and photophysical transformations in iron complexes with ultrafast X-ray spectroscopy and scattering |
title_fullStr | Capturing photochemical and photophysical transformations in iron complexes with ultrafast X-ray spectroscopy and scattering |
title_full_unstemmed | Capturing photochemical and photophysical transformations in iron complexes with ultrafast X-ray spectroscopy and scattering |
title_short | Capturing photochemical and photophysical transformations in iron complexes with ultrafast X-ray spectroscopy and scattering |
title_sort | capturing photochemical and photophysical transformations in iron complexes with ultrafast x-ray spectroscopy and scattering |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8208315/ https://www.ncbi.nlm.nih.gov/pubmed/34194691 http://dx.doi.org/10.1039/d1sc01864g |
work_keys_str_mv | AT gaffneykellyj capturingphotochemicalandphotophysicaltransformationsinironcomplexeswithultrafastxrayspectroscopyandscattering |