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Bis-(10-ethylphenothiazinyl)-phenylmethane was obtained by the condensation of 10-ethyl-phenothiazine with benzaldehyde in the presence of acid catalysts. The electrochemical behavior of bis-(10-ethylphenothiazinyl)-phenylmethane adsorbed on spectrographic graphite has been investigated. Cyclic voltammetric measurements performed in aqueous buffer solutions at different potential scan rates pointed out to a quasi-reversible, surface-confined redox process, with a negative formal standard potential of -55 mV vs. SCE (10 mV s^-1). The voltammetric response involves the transfer of 1e^-, with a heterogeneous rate constant of 18.9 s^-1 (pH 7). The modified electrodes showed a good electrochemical stability.

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	STUDIA CHEMIA - Ediţia nr.1 din 2008

	Articol:	SYNTHESIS AND ELECTROCHEMICAL BEHAVIOUR OF BIS-(10-ETHYLPHENOTHIAZINYL)-PHENYLMETHANE. Autori: DELIA M. GLIGOR, LIANA MUREŞAN, IONEL CĂTĂLIN POPESCU, CASTELIA CRISTEA, GABRIELA CORMOS.


	Rezumat: Bis-(10-ethylphenothiazinyl)-phenylmethane was obtained by the condensation of 10-ethyl-phenothiazine with benzaldehyde in the presence of acid catalysts. The electrochemical behavior of bis-(10-ethylphenothiazinyl)-phenylmethane adsorbed on spectrographic graphite has been investigated. Cyclic voltammetric measurements performed in aqueous buffer solutions at different potential scan rates pointed out to a quasi-reversible, surface-confined redox process, with a negative formal standard potential of -55 mV vs. SCE (10 mV s^-1). The voltammetric response involves the transfer of 1e^-, with a heterogeneous rate constant of 18.9 s^-1 (pH 7). The modified electrodes showed a good electrochemical stability.




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