Probing electrochemical properties of pi-conjugated thienylenevinylenes/fullerene C(60) adducts by ESI/MS: evidence for dimerized cation-radicals.
Oligothienylenevinylenes/C(60) dyads n-C and triads n-C(2) are studied by electrospray mass spectrometry. A clear correlation is observed between the nature of the charged species detected by mass spectrometry, i.e. protonated molecule [M + H], (+) cation radical M(+.) and dication M(++), and the oxidation potentials of the molecules. Moreover, under defined solubility conditions, mass spectrometry provides conclusive evidences for the reversible dimerization of cation-radicals of n-C(2) compounds.
Rondeau
David
D
Service Commun d'Analyses Spectroscopiques, Université d'Angers, 2 Boulevard Lavoisier, 49045 Angers, France. david.rondeau@univ-angers.fr
Martineau
Corinne
C
Blanchard
Philippe
P
Roncali
Jean
J