Reorientation of the Alkyne Moiety in Fe3(CO)9(RC2R) Clusters Induced by a Two-Electron Electrochemical Reduction

Domenico Osella; Roberto Gobetto; Paolo Montangero; Piero Zanello; Arnaldo Cinquantini

doi:10.1021/om00137a033

Reorientation of the Alkyne Moiety in Fe₃(CO)₉(RC₂R) Clusters Induced by a Two-Electron Electrochemical Reduction

Domenico Osella
, Roberto Gobetto
, Paolo Montangero
, Piero Zanello
, Arnaldo Cinquantini

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

Abstract

The redox chemistry of alkyne-trimetal clusters has been investigated by electrochemical and spectroscopic techniques. The closo-Fe₃(CO)₉(RC₂R) series undergoes two near reversible one-electron reduction steps. The bulk of spectroscopic data of the electrolytically generated [Fe₃(CO)₉(EtC₂Et)]² dianion strongly suggests that the orientation of the alkyne moiety relative to the metallic triangle is changed from perpendicular to parallel. On the contrary the cathodic reduction of the nido series FeCo₂(CO)₉(EtC₂Et), Os₃(CO)₁₀(EtC₂Et), and H₂M₃(CO)₉(EtC₂Et) (M = Ru, Os) is totally irreversible and is associated to cluster breakdown.

Lingua originale	Inglese
pagine (da-a)	1247-1253
Numero di pagine	7
Rivista	Organometallics
Volume	5
Numero di pubblicazione	6
DOI	https://doi.org/10.1021/om00137a033
Stato di pubblicazione	Pubblicato - 1 giu 1986
Pubblicato esternamente	Sì

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10.1021/om00137a033

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@article{8ecc031ae404466fa1df87fc037a8fb1,

title = "Reorientation of the Alkyne Moiety in Fe3(CO)9(RC2R) Clusters Induced by a Two-Electron Electrochemical Reduction",

abstract = "The redox chemistry of alkyne-trimetal clusters has been investigated by electrochemical and spectroscopic techniques. The closo-Fe3(CO)9(RC2R) series undergoes two near reversible one-electron reduction steps. The bulk of spectroscopic data of the electrolytically generated [Fe3(CO)9(EtC2Et)]2 dianion strongly suggests that the orientation of the alkyne moiety relative to the metallic triangle is changed from perpendicular to parallel. On the contrary the cathodic reduction of the nido series FeCo2(CO)9(EtC2Et), Os3(CO)10(EtC2Et), and H2M3(CO)9(EtC2Et) (M = Ru, Os) is totally irreversible and is associated to cluster breakdown.",

author = "Domenico Osella and Roberto Gobetto and Paolo Montangero and Piero Zanello and Arnaldo Cinquantini",

year = "1986",

month = jun,

day = "1",

doi = "10.1021/om00137a033",

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TY - JOUR

T1 - Reorientation of the Alkyne Moiety in Fe3(CO)9(RC2R) Clusters Induced by a Two-Electron Electrochemical Reduction

AU - Osella, Domenico

AU - Gobetto, Roberto

AU - Montangero, Paolo

AU - Zanello, Piero

AU - Cinquantini, Arnaldo

PY - 1986/6/1

Y1 - 1986/6/1

N2 - The redox chemistry of alkyne-trimetal clusters has been investigated by electrochemical and spectroscopic techniques. The closo-Fe3(CO)9(RC2R) series undergoes two near reversible one-electron reduction steps. The bulk of spectroscopic data of the electrolytically generated [Fe3(CO)9(EtC2Et)]2 dianion strongly suggests that the orientation of the alkyne moiety relative to the metallic triangle is changed from perpendicular to parallel. On the contrary the cathodic reduction of the nido series FeCo2(CO)9(EtC2Et), Os3(CO)10(EtC2Et), and H2M3(CO)9(EtC2Et) (M = Ru, Os) is totally irreversible and is associated to cluster breakdown.

AB - The redox chemistry of alkyne-trimetal clusters has been investigated by electrochemical and spectroscopic techniques. The closo-Fe3(CO)9(RC2R) series undergoes two near reversible one-electron reduction steps. The bulk of spectroscopic data of the electrolytically generated [Fe3(CO)9(EtC2Et)]2 dianion strongly suggests that the orientation of the alkyne moiety relative to the metallic triangle is changed from perpendicular to parallel. On the contrary the cathodic reduction of the nido series FeCo2(CO)9(EtC2Et), Os3(CO)10(EtC2Et), and H2M3(CO)9(EtC2Et) (M = Ru, Os) is totally irreversible and is associated to cluster breakdown.

UR - https://www.scopus.com/pages/publications/0000631512

U2 - 10.1021/om00137a033

DO - 10.1021/om00137a033

M3 - Article

SN - 0276-7333

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JO - Organometallics

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