A Molecular Low‐Coordinate [Fe‐S‐Fe] Unit in Three Oxidation States

A [Fe‐S‐Fe] subunit with a single sulfide bridging two low‐coordinate iron ions is the supposed active site of the iron‐molybdenum co‐factor (FeMoco) of nitrogenase. Here we report a dinuclear monosulfido bridged diiron(II) complex with a similar complex geometry that can be oxidized stepwise to dii...

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Autores principales: Schneider, Christian, Demeshko, Serhiy, Meyer, Franc, Werncke, C. Gunnar
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2021
Materias:
Full Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8048577/
https://www.ncbi.nlm.nih.gov/pubmed/33512018
http://dx.doi.org/10.1002/chem.202100336
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author Schneider, Christian
Demeshko, Serhiy
Meyer, Franc
Werncke, C. Gunnar
author_facet Schneider, Christian
Demeshko, Serhiy
Meyer, Franc
Werncke, C. Gunnar
author_sort Schneider, Christian
collection PubMed
description A [Fe‐S‐Fe] subunit with a single sulfide bridging two low‐coordinate iron ions is the supposed active site of the iron‐molybdenum co‐factor (FeMoco) of nitrogenase. Here we report a dinuclear monosulfido bridged diiron(II) complex with a similar complex geometry that can be oxidized stepwise to diiron(II/III) and diiron(III/III) complexes while retaining the [Fe‐S‐Fe] core. The series of complexes has been characterized crystallographically, and electronic structures have been studied using, inter alia, (57)Fe Mössbauer spectroscopy and SQUID magnetometry. Further, cleavage of the [Fe‐S‐Fe] unit by CS(2) is presented.
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spelling pubmed-80485772021-04-19 A Molecular Low‐Coordinate [Fe‐S‐Fe] Unit in Three Oxidation States Schneider, Christian Demeshko, Serhiy Meyer, Franc Werncke, C. Gunnar Chemistry Full Papers A [Fe‐S‐Fe] subunit with a single sulfide bridging two low‐coordinate iron ions is the supposed active site of the iron‐molybdenum co‐factor (FeMoco) of nitrogenase. Here we report a dinuclear monosulfido bridged diiron(II) complex with a similar complex geometry that can be oxidized stepwise to diiron(II/III) and diiron(III/III) complexes while retaining the [Fe‐S‐Fe] core. The series of complexes has been characterized crystallographically, and electronic structures have been studied using, inter alia, (57)Fe Mössbauer spectroscopy and SQUID magnetometry. Further, cleavage of the [Fe‐S‐Fe] unit by CS(2) is presented. John Wiley and Sons Inc. 2021-03-05 2021-04-07 /pmc/articles/PMC8048577/ /pubmed/33512018 http://dx.doi.org/10.1002/chem.202100336 Text en © 2021 The Authors. Published by Wiley-VCH GmbH https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Full Papers
Schneider, Christian
Demeshko, Serhiy
Meyer, Franc
Werncke, C. Gunnar
A Molecular Low‐Coordinate [Fe‐S‐Fe] Unit in Three Oxidation States
title A Molecular Low‐Coordinate [Fe‐S‐Fe] Unit in Three Oxidation States
title_full A Molecular Low‐Coordinate [Fe‐S‐Fe] Unit in Three Oxidation States
title_fullStr A Molecular Low‐Coordinate [Fe‐S‐Fe] Unit in Three Oxidation States
title_full_unstemmed A Molecular Low‐Coordinate [Fe‐S‐Fe] Unit in Three Oxidation States
title_short A Molecular Low‐Coordinate [Fe‐S‐Fe] Unit in Three Oxidation States
title_sort molecular low‐coordinate [fe‐s‐fe] unit in three oxidation states
topic Full Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8048577/
https://www.ncbi.nlm.nih.gov/pubmed/33512018
http://dx.doi.org/10.1002/chem.202100336
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