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High turnover photocatalytic hydrogen formation with an Fe(iii) N-heterocyclic carbene photosensitiser

Schwarz, Jesper LU ; Ilic, Aleksandra LU orcid ; Johnson, Catherine ; Lomoth, Reiner and Wärnmark, Kenneth LU (2022) In Chemical Communications 58(35). p.5351-5354
Abstract

Herein we report the first high turnover photocatalytic hydrogen formation reaction based on an earth-abundant FeIII-NHC photosensitiser. The reaction occurs via reductive quenching of the 2LMCT excited state that can be directly excited with green light and employs either Pt-colloids or [Co(dmgH)2pyCl] as proton reduction catalysts and [HNEt3][BF4] and triethanolamine/triethylamine as proton and electron donors. The outstanding photostability of the FeIII-NHC complex enables turnover numbers >1000 without degradation.

Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Chemical Communications
volume
58
issue
35
pages
4 pages
publisher
Royal Society of Chemistry
external identifiers
  • scopus:85128229165
  • pmid:35373799
ISSN
1359-7345
DOI
10.1039/d2cc01016j
language
English
LU publication?
yes
id
cb59ee5f-3ea1-40ac-83a8-c8c148a6eaf5
date added to LUP
2022-07-01 15:57:24
date last changed
2024-07-11 20:24:48
@article{cb59ee5f-3ea1-40ac-83a8-c8c148a6eaf5,
  abstract     = {{<p>Herein we report the first high turnover photocatalytic hydrogen formation reaction based on an earth-abundant Fe<sup>III</sup>-NHC photosensitiser. The reaction occurs via reductive quenching of the <sup>2</sup>LMCT excited state that can be directly excited with green light and employs either Pt-colloids or [Co(dmgH)<sub>2</sub>pyCl] as proton reduction catalysts and [HNEt<sub>3</sub>][BF<sub>4</sub>] and triethanolamine/triethylamine as proton and electron donors. The outstanding photostability of the Fe<sup>III</sup>-NHC complex enables turnover numbers &gt;1000 without degradation.</p>}},
  author       = {{Schwarz, Jesper and Ilic, Aleksandra and Johnson, Catherine and Lomoth, Reiner and Wärnmark, Kenneth}},
  issn         = {{1359-7345}},
  language     = {{eng}},
  month        = {{04}},
  number       = {{35}},
  pages        = {{5351--5354}},
  publisher    = {{Royal Society of Chemistry}},
  series       = {{Chemical Communications}},
  title        = {{High turnover photocatalytic hydrogen formation with an Fe(iii) N-heterocyclic carbene photosensitiser}},
  url          = {{http://dx.doi.org/10.1039/d2cc01016j}},
  doi          = {{10.1039/d2cc01016j}},
  volume       = {{58}},
  year         = {{2022}},
}