Electrochemical Behaviour of Cobalt Complexes with 2,4-Bis(Trimethylsilylethynyl) Thiophene

 

Comportamiento Electroquímico de Complejos de Cobalto con 2,4 Bis (Trimetilsililetinil) Tiofeno

 

M.L. Marcos,^a M.C. Moreno,^b A.Arnanz,^b S. Delgado,^b J. González Velasco^a,*

 

^a)Departamento de Química, ^b)Departamento de Química Inorgánica. Universidad Autónoma de Madrid. 28049 Madrid. España

 

Received 2 April 2004; accepted in revised form 8 July 2004

Abstract

The electrochemical behaviour of five different complexes of cobalt with 2,4-bis(trimethylsilylethynyl)thiophene was studied, concluding that the presence of aromatic ligands gives rise to electronic communication effects that allow to define them as molecular wires. The stability of the compounds and of the products of oxidative and reductive charge transfers increases at a temperature of -30 °C.

 

Keywords: cobalt complexes, electronic communication, molecular wires.

 

 

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* Corresponding author. E-mail address: jaime.gonzalez@uam.es