Redox Properties of New Carbonyl β-diketonate Rhodium (I) Complexes Containing 1-adamantyl isocyanide Ligand

The redox properties of new carbonyl β-diketonate rhodium (I) complexes containing 1-adamantyl isocyanide ligand (β-diketonato)Rh(CO)(CNAd) [β-diketonato = acetylacetonate (acac), dibenzoylmethane (dbm), hexafluoroacetylacetonate (hfac), Ad =1-adamantyl)] were studied by electrochemical methods at p...

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Bibliographic Details
Published in:Journal of Siberian Federal University. Chemistry 2022-10, Vol.15 (4), p.571-579
Main Authors: Burmakina, Galina V, Chudin, Oleg S, Verpekin, Victor V, Nedelina, Tatyana S, Patrusheva, Anastasia A, Zimonin, Dmitry V, Rubaylo, Anatoly I
Format: Article
Language:Russian
Subjects:
Acetonitrile
Carbonyls
Electrochemical analysis
Ligands
Oxidation
Reduction
Rhodium compounds
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Summary:The redox properties of new carbonyl β-diketonate rhodium (I) complexes containing 1-adamantyl isocyanide ligand (β-diketonato)Rh(CO)(CNAd) [β-diketonato = acetylacetonate (acac), dibenzoylmethane (dbm), hexafluoroacetylacetonate (hfac), Ad =1-adamantyl)] were studied by electrochemical methods at platinum, glassed carbon and dropping mercury electrodes in acetonitrile. The electrochemical behaviour of the new complexes and related rhodium compounds (ß-diketonato) Rh(CO)(L) [L = CO, PPh3] were compared. The mechanism of two electron oxidation of the studied complexes was shown to depend on the nature of the chelate ligand. One electron reduction of the isocyanide complexes occurs at the E1/2 values, that are found between the reduction potentials of dicarbonyl and carbonylphosphine rhodium (I) complexes. That is consistent with the electron-donating ability of the terminal CO, CNAd and PPh3 ligands at the Rh atom.
ISSN:1998-2836
2313-6049
DOI:10.17516/1998-2836-0319