The radical cations and anions of the four lower oligomers of thiophene have been generated and characterized by means of ESR spectroscopy, with the exception of bi- and quinque-thienyl radical cations. cis-trans isomerism about the interannular bonds, similar to that previously reported for 2,2?-dithienyl radical anion, has been observed for terthienyl cation and anion radicals, while no direct evidence of such isomerism could be obtained for quaterthienyl and quinquethienyl.
Radical cations and anions from some simple polythiophenes: An ESR investigation
Alberti A;Favaretto L;Seconi G;
1990
Abstract
The radical cations and anions of the four lower oligomers of thiophene have been generated and characterized by means of ESR spectroscopy, with the exception of bi- and quinque-thienyl radical cations. cis-trans isomerism about the interannular bonds, similar to that previously reported for 2,2?-dithienyl radical anion, has been observed for terthienyl cation and anion radicals, while no direct evidence of such isomerism could be obtained for quaterthienyl and quinquethienyl.File in questo prodotto:
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