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 rivistaArticolo in rivistapeer 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 originaleInglese
pagine (da-a)1247-1253
Numero di pagine7
RivistaOrganometallics
Volume5
Numero di pubblicazione6
DOI
Stato di pubblicazionePubblicato - 1 giu 1986
Pubblicato esternamente

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