Electrochemical Behavior and Electron-Transfer Chain (ETC) Reactions of H4Ru4(CO)12

Domenico Osella; Carlo Nervi; Mauro Ravera; Jan Fiedler; Vladimir V. Strelets

doi:10.1021/om00005a055

Electrochemical Behavior and Electron-Transfer Chain (ETC) Reactions of H₄Ru₄(CO)₁₂

Domenico Osella, Carlo Nervi, Mauro Ravera, Jan Fiedler, Vladimir V. Strelets

Research output: Contribution to journal › Article › peer-review

Abstract

The electrochemical reduction of H₄Ru₄(CO)₁₂ in tetrahydrofuran (THF) is studied by means of dc and ac polarography, cyclic voltammetry, and FT-IR spectroscopy following electrolysis in a optically transparent thin-layer electrochemical (OTTLE) cell. The reduction of the title complex generates a transient radical anion, [H₄Ru₄(CO)₁₂]^-, which produces the stable anion [H₃Ru₄(CO)₁₂]^- on a longer time scale. In the presence of triphenylphosphine, nucleophilic substitutions readily take place by electrochemical initiation and produce mono and bisubstituted derivatives in yields depending on PPh₃ concentration. The termination side chain reaction is the loss of a hydrido ligand, to give the above mentioned anion, which is inert to substitution even in the presence of a large excess of Lewis base.

Original language	English
Pages (from-to)	2501-2505
Number of pages	5
Journal	Organometallics
Volume	14
Issue number	5
DOIs	https://doi.org/10.1021/om00005a055
Publication status	Published - May 1995
Externally published	Yes

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title = "Electrochemical Behavior and Electron-Transfer Chain (ETC) Reactions of H4Ru4(CO)12",

abstract = "The electrochemical reduction of H4Ru4(CO)12 in tetrahydrofuran (THF) is studied by means of dc and ac polarography, cyclic voltammetry, and FT-IR spectroscopy following electrolysis in a optically transparent thin-layer electrochemical (OTTLE) cell. The reduction of the title complex generates a transient radical anion, [H4Ru4(CO)12]-, which produces the stable anion [H3Ru4(CO)12]- on a longer time scale. In the presence of triphenylphosphine, nucleophilic substitutions readily take place by electrochemical initiation and produce mono and bisubstituted derivatives in yields depending on PPh3 concentration. The termination side chain reaction is the loss of a hydrido ligand, to give the above mentioned anion, which is inert to substitution even in the presence of a large excess of Lewis base.",

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T1 - Electrochemical Behavior and Electron-Transfer Chain (ETC) Reactions of H4Ru4(CO)12

AU - Osella, Domenico

AU - Nervi, Carlo

AU - Ravera, Mauro

AU - Fiedler, Jan

AU - Strelets, Vladimir V.

PY - 1995/5

Y1 - 1995/5

N2 - The electrochemical reduction of H4Ru4(CO)12 in tetrahydrofuran (THF) is studied by means of dc and ac polarography, cyclic voltammetry, and FT-IR spectroscopy following electrolysis in a optically transparent thin-layer electrochemical (OTTLE) cell. The reduction of the title complex generates a transient radical anion, [H4Ru4(CO)12]-, which produces the stable anion [H3Ru4(CO)12]- on a longer time scale. In the presence of triphenylphosphine, nucleophilic substitutions readily take place by electrochemical initiation and produce mono and bisubstituted derivatives in yields depending on PPh3 concentration. The termination side chain reaction is the loss of a hydrido ligand, to give the above mentioned anion, which is inert to substitution even in the presence of a large excess of Lewis base.

AB - The electrochemical reduction of H4Ru4(CO)12 in tetrahydrofuran (THF) is studied by means of dc and ac polarography, cyclic voltammetry, and FT-IR spectroscopy following electrolysis in a optically transparent thin-layer electrochemical (OTTLE) cell. The reduction of the title complex generates a transient radical anion, [H4Ru4(CO)12]-, which produces the stable anion [H3Ru4(CO)12]- on a longer time scale. In the presence of triphenylphosphine, nucleophilic substitutions readily take place by electrochemical initiation and produce mono and bisubstituted derivatives in yields depending on PPh3 concentration. The termination side chain reaction is the loss of a hydrido ligand, to give the above mentioned anion, which is inert to substitution even in the presence of a large excess of Lewis base.

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JO - Organometallics

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Electrochemical Behavior and Electron-Transfer Chain (ETC) Reactions of H₄Ru₄(CO)₁₂

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