Synthesis and Characterization of Stable Iron Pentacarbonyl Radical Cation Salts
- PMID: 35543697
- PMCID: PMC9401057
- DOI: 10.1002/anie.202204080
Synthesis and Characterization of Stable Iron Pentacarbonyl Radical Cation Salts
Abstract
The open-shell iron pentacarbonyl cation [Fe(CO)5 ].+ was isolated by deelectronation, i.e., the single-electron oxidation of the parent neutral Fe(CO)5 using [phenazineF ].+ as the [Al(ORF )4 ]- and [F-{Al(ORF )3 }2 ]- salt (RF =C(CF3 )3 ; phenazineF =perfluoro-5,10-bis(perfluorophenyl)-5,10-dihydrophenazine). [Fe(CO)5 ].+ [Al(ORF )4 ]- was fully characterized (scXRD analysis, IR, NMR, EPR, 57 Fe spectroscopy, CV and SQUID magnetization study) and, apart from being a compound of fundamental interest, may serve as a precursor for low-valent iron coordination chemistry.
Keywords: Carbonyl Ligands; Iron; Radical Ions; Weakly Coordinating Anions.
© 2022 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH.
Conflict of interest statement
The authors declare no conflict of interest.
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