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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 [phenazine^F ]^.+ as the [Al(OR^F )₄ ]^- and [F-{Al(OR^F )₃ }₂ ]^- salt (R^F =C(CF₃ )₃ ; phenazine^F =perfluoro-5,10-bis(perfluorophenyl)-5,10-dihydrophenazine). [Fe(CO)₅ ]^.+ [Al(OR^F )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.

SUBMITTER: Rall JM

PROVIDER: S-EPMC9401057 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature

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Synthesis and Characterization of Stable Iron Pentacarbonyl Radical Cation Salts.

Rall Jan M JM Schorpp Marcel M Keilwerth Martin M Mayländer Maximilian M Friedmann Christian C Daub Michael M Richert Sabine S Meyer Karsten K Krossing Ingo I

Angewandte Chemie (International ed. in English) 20220607 32

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)<sub ...[more]

PMID: 35543697

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