In situ time-resolved FTIR spectroelectrochemistry: study of the reduction of TCNQ

V. Bellec (1) , M. de Backer (1) , E. Levillain (2) , F.X. Sauvage (1) , B. Sombret (1) , C. Wartelle (1)

1 LASIRE - Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516
2 IMMO - Ingénierie Moléculaire et Matériaux Organiques

The efficiency and versatility of time-resolved FTIR spectroscopy has been used to follow concentration profiles of species produced during a cyclic voltammetric scan. It has been tested in situ and in resolved time, by probing the reduction of tetracyanoquinodimethane (TCNQ) on its first and second electrochemical wave. Besides the establishment of the method, the individual concentrations of TCNQ, of the monoanion and of the dianion were monitored at distinct infrared frequencies and the time derivatives of the concentration profiles were compared to the voltammograms.

V. Bellec, M. de Backer, E. Levillain, F.X. Sauvage, B. Sombret, et al.. In situ time-resolved FTIR spectroelectrochemistry: study of the reduction of TCNQ. Electrochemistry Communications, 2001, 3, pp.483-488. ⟨10.1016/S1388-2481(01)00158-8⟩. ⟨hal-00280592⟩