In situ UV-vis and Raman spectroscopic studies of the electrochemical behavior of N,N '-diphenyl-1,4-phenylenediamine

H. de Santana , Sophie Quillard (1) , E. Fayad (1) , G. Louarn (1)

1 IMN - Institut des Matériaux Jean Rouxel

The electrochemical behavior of the N,N'-diphenyl-1,4-phenylenediamine (B3) in acid solution has been investigated by in situ UV–vis and Raman spectroscopies. The electrogenerated species semiquinone form (B3•+) and monoprotonated structure of B3 (B3+) have been characterized as the main products of B3 oxidation. The N,N'-diphenyl-1,4-benzoquinonediimine (B2Q1) species has also been characterized in B3 neutral solution and the B3•+ proton loss was attributed to proton absence in solution. Finally, a mechanism has been proposed concerning the electron and proton transfer that occurs during the oxidation process.

Domaines: Matériaux; Science des matériaux [cond-mat.mtrl-sci]

H. de Santana, Sophie Quillard, E. Fayad, G. Louarn. In situ UV-vis and Raman spectroscopic studies of the electrochemical behavior of N,N '-diphenyl-1,4-phenylenediamine. Synthetic Metals, 2006, 156, pp.81. ⟨10.1016/j.synthmet.2005.10.013⟩. ⟨hal-00379519⟩