Abstract

Carbon monoxide is a key C1 feedstock for the industrial production of hydrocarbons, where it is used to make millions of tonnes of chemicals, fuels, and solvents per annum. Many transition metal complexes can coordinate CO, but the formation of new C−C bonds in well-defined compounds from the scission and subsequent coupling of two or more CO moieties at a transition metal centre remains a challenge. Herein, we report the use of low-coordinate iron(II) complexes for the selective scission and homologation of CO affording unusual squaraines and iron carboxylates at ambient temperature and pressure. A modification of the ligand framework allows for the isolation and structural characterisation of a proposed metallacyclic Fe(II) carbene intermediate. These results indicate that, with the appropriate choice of supporting ligands, it is possible to cleave and homologate carbon monoxide under mild conditions using an abundant and environmentally benign low-coordinate, first row transition metal.

Details

Title
Selective reduction and homologation of carbon monoxide by organometallic iron complexes
Author
Sharpe, Helen R 1   VIAFID ORCID Logo  ; Geer, Ana M 2 ; Taylor, Laurence J 2   VIAFID ORCID Logo  ; Gridley, Benjamin M 3 ; Blundell, Toby J 2 ; Blake, Alexander J 2   VIAFID ORCID Logo  ; Davies, E Stephen 2 ; Lewis, William 2   VIAFID ORCID Logo  ; McMaster, Jonathan 2   VIAFID ORCID Logo  ; Robinson, David 4   VIAFID ORCID Logo  ; Kays, Deborah L 2   VIAFID ORCID Logo 

 School of Chemistry, University of Nottingham, Nottingham, UK; School of Chemistry, The University of Manchester, Manchester, UK 
 School of Chemistry, University of Nottingham, Nottingham, UK 
 School of Chemistry, University of Nottingham, Nottingham, UK; Department of Geography, Strand Building, King’s College London, Strand Campus, London, UK 
 Department of Chemistry and Forensics, School of Science and Technology, Nottingham Trent University, Nottingham, UK 
Pages
1-8
Publication year
2018
Publication date
Sep 2018
Publisher
Nature Publishing Group
e-ISSN
20411723
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2104155979
Copyright
© 2018. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.