Electrochemical Behaviour of (2,4-difluoro-phenyl)-(2-phenyl-1H-quinolin- 4-ylidene)-amine in Aprotic Media
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The electrochemical reduction of (2,4-difluoro-phenyl)-(2-phenyl-1H-quinolin-4-ylidene)-amine was investigated in 0.1 M tetrabutylammoniumbromide in N,N-dimethylformamide at glassy carbon electrode (GCE) using the technique of cyclic voltammetry at the room temperature (290 K). The reduction of imines occurs in two successive steps,involving one electron in each. In this medium the first peak was observed at about -0.793 V (vs Ag/Ag^+) at the glassy carbon electrode surface, which is more stable and well defined as compared to the second peak. The diffusion coefficient (D_0) of imine in the investigated solvent media has been calculated using the modified Randles-Sevcik equation. The electron transfer coefficient (α) of the reactant species has also been calculated.
Abstract
The electrochemical reduction of (2,4-difluoro-phenyl)-(2-phenyl-1H-quinolin-4-ylidene)-amine was investigated in 0.1 M tetrabutylammoniumbromide in N,N-dimethylformamide at glassy carbon electrode (GCE) using the technique of cyclic voltammetry at the room temperature (290 K). The reduction of imines occurs in two successive steps,involving one electron in each. In this medium the first peak was observed at about -0.793 V (vs Ag/Ag^+) at the glassy carbon electrode surface, which is more stable and well defined as compared to the second peak. The diffusion coefficient (D_0) of imine in the investigated solvent media has been calculated using the modified Randles-Sevcik equation. The electron transfer coefficient (α) of the reactant species has also been calculated.
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