Improved Visible Light Absorption of Potent Iridium(III) Photo-oxidants for Excited-State Electron Transfer Chemistry
Sara A M Wehlin
2
,
Eric J Piechota
2
,
Michael Abraham
1
,
Christian Philouze
3
,
Gerald J. Meyer
2
,
Benjamin Elias
1
,
Publication type: Journal Article
Publication date: 2020-01-15
scimago Q1
wos Q1
SJR: 5.554
CiteScore: 22.5
Impact factor: 15.6
ISSN: 00027863, 15205126
PubMed ID:
31939663
General Chemistry
Catalysis
Biochemistry
Colloid and Surface Chemistry
Abstract
Three iridium photosensitizers, [Ir(dCF3ppy)2(N–N)]+, where N–N is 1,4,5,8-tetraazaphenanthrene (TAP), pyrazino[2,3-a]phenazine (pzph), or benzo[a]pyrazino[2,3-h]phenazine (bpph) and dCF3ppy is 2-(3,5-bis(trifluoromethyl-phenyl)pyridine), were found to be remarkably strong photo-oxidants with enhanced light absorption in the visible region. In particular, judicious ligand design provided access to Ir-bpph, with a molar absorption coefficient, e = 9800 M–1 cm–1, at 450 nm and an excited-state reduction potential, E(Ir+*/0) = 1.76 V vs NHE. These complexes were successful in performing light-driven charge separation and energy storage, where all complexes photo-oxidized seven different electron donors with rate constants (0.089−3.06) × 1010 M–1 s–1. A Marcus analysis provided a total reorganization energy of 0.7 ± 0.1 eV for excited-state electron transfer.
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65
Total citations:
65
Citations from 2024:
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(29%)
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GOST
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Bevernaegie R. et al. Improved Visible Light Absorption of Potent Iridium(III) Photo-oxidants for Excited-State Electron Transfer Chemistry // Journal of the American Chemical Society. 2020. Vol. 142. No. 6. pp. 2732-2737.
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Bevernaegie R., Wehlin S. A. M., Piechota E. J., Abraham M., Philouze C., Meyer G. J., Elias B., Troian-Gautier L. Improved Visible Light Absorption of Potent Iridium(III) Photo-oxidants for Excited-State Electron Transfer Chemistry // Journal of the American Chemical Society. 2020. Vol. 142. No. 6. pp. 2732-2737.
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RIS
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TY - JOUR
DO - 10.1021/jacs.9b12108
UR - https://doi.org/10.1021/jacs.9b12108
TI - Improved Visible Light Absorption of Potent Iridium(III) Photo-oxidants for Excited-State Electron Transfer Chemistry
T2 - Journal of the American Chemical Society
AU - Bevernaegie, Robin
AU - Wehlin, Sara A M
AU - Piechota, Eric J
AU - Abraham, Michael
AU - Philouze, Christian
AU - Meyer, Gerald J.
AU - Elias, Benjamin
AU - Troian-Gautier, Ludovic
PY - 2020
DA - 2020/01/15
PB - American Chemical Society (ACS)
SP - 2732-2737
IS - 6
VL - 142
PMID - 31939663
SN - 0002-7863
SN - 1520-5126
ER -
Cite this
BibTex (up to 50 authors)
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@article{2020_Bevernaegie,
author = {Robin Bevernaegie and Sara A M Wehlin and Eric J Piechota and Michael Abraham and Christian Philouze and Gerald J. Meyer and Benjamin Elias and Ludovic Troian-Gautier},
title = {Improved Visible Light Absorption of Potent Iridium(III) Photo-oxidants for Excited-State Electron Transfer Chemistry},
journal = {Journal of the American Chemical Society},
year = {2020},
volume = {142},
publisher = {American Chemical Society (ACS)},
month = {jan},
url = {https://doi.org/10.1021/jacs.9b12108},
number = {6},
pages = {2732--2737},
doi = {10.1021/jacs.9b12108}
}
Cite this
MLA
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Bevernaegie, Robin, et al. “Improved Visible Light Absorption of Potent Iridium(III) Photo-oxidants for Excited-State Electron Transfer Chemistry.” Journal of the American Chemical Society, vol. 142, no. 6, Jan. 2020, pp. 2732-2737. https://doi.org/10.1021/jacs.9b12108.