Selective oxidants for organometallic compounds containing a stabilising anion of highly reactive cations: (3,5(CF3)(2)C6H3)(4)B-)Cp2Fe+ and (3,5(CF3)(2)C6H3)(4)B-)Cp-2*Fe+

Chavez, I; Alvarez-Carena A.; Molins, E; Roig A.; Maniukiewicz W.; Arancibia A.; Arancibia, V; Brand H.; Manriquez, JM

Abstract

A major interest in ferrocenium compounds arises from their usefulness as selective oxidants to prepare mixed-valence metallocenic stable compounds. In this paper, Cp2FeBAr4' = ((3,5(CF3)(2)C6H3)(4)B-)Cp2Fe+) (a), and Cp-2*FeBAr4' = ((3,5(CF3)(2)C6H3)(4)B-)Cp-2*Fe+) (b) are reported. These compounds have wide applications in the obtention of new organometallic salts with improved stability. The selective oxidation capacity of compounds a and b was investigated by the reaction of [Cp*Co-II(C8H6)Fe-II(C8H7)] with stoichiometric quantities of Cp2FeBAr4' or Cp-2*TFeBAr4' where [Cp*Co-III(C8H6)Fe-II(C8H7)]BAr4' was exclusively obtained. All salts that have BAr4-' as counterion showed an enhanced solubility in low-polarity solvents, especially in diethyl ether. This fact allowed us to perform non-conventional measurements like cyclic voltammetry in diethyl ether as solvent with NaBAr4' as supporting electrolyte. Single-crystal structural determination of a and b was also achieved. (C) 2000 Elsevier Science S.A. All rights reserved.

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Título según WOS: Selective oxidants for organometallic compounds containing a stabilising anion of highly reactive cations: (3,5(CF3)(2)C6H3)(4)B-)Cp2Fe+ and (3,5(CF3)(2)C6H3)(4)B-)Cp-2*Fe+
Título de la Revista: JOURNAL OF ORGANOMETALLIC CHEMISTRY
Volumen: 601
Número: 1
Editorial: ELSEVIER SCIENCE SA
Fecha de publicación: 2000
Página de inicio: 126
Página final: 132
Idioma: English
URL: http://linkinghub.elsevier.com/retrieve/pii/S0022328X00000449
DOI:

10.1016/S0022-328X(00)00044-9

Notas: ISI