Investigations of electrochemical and spectroelectrochemical properties (UV-Vis, EPR) of thiophene trimer derivatives substituted with phenylvinyl groups.

Authors

Pawel W. Wagner, University of WollongongFollow
Agnieszka Stolarczyk
Mariola Bartoszek
Mieczyslaw Lapkowski, Silesian university of Technology
David L. Officer, University of WollongongFollow
Keith C. Gordon, Otago University
M Jadamiec
Wieslaw W. Sulkowski

RIS ID

29959

Abstract

The results of investigations concerning electrochem. properties of two thiophene trimers derivs. substituted with phenylvinyl groups {3'[(E)-2-phenylethenyl]-2,2':5',2"-thiophene (monomer A) and 4,4"-didecyloxy-3'[(E)-2-phenylethenyl]-2,2':5',2"-thiophene (monomer B)} and the products of their oxidn. were discussed. Electropolymns. of A and B monomers were carried out with use of cyclic voltammetry and electrochem. measurements were coupled in-situ with spectroscopic methods (UV-Vis, EPR). It was found that A monomer oxidized to oligomers sol. in dichloromethane while monomer B showed ability to form stable conductive polymer layers showing low-energy forbidden band (1.6 eV).