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Electrode processes of selected redox active substances on poly(o-aminophenol) film electrode

100%

Marczewska B., Przegaliński M.

Open Chemistry

2013

vol. 11

issue 2

189-199

Using the method of cyclic voltammetry, the electrode process of Ni2+, Pb2+, Cu2+ and pyrocatechin on a poly(o-aminophenol) (PoAP) modified glassy carbon electrode (GCE) was investigated. The PoAP polymer was found to affect the redox process of copper and pyrocatechin. The use of polymer of different thicknesses showed that the obtained film has a dense, nonporous structure. The redox process of the examined substances may be considered as proceeding on the polymer surface. The PoAP polymer obtained in the described conditions takes part in charge transfer. [...]

IR-spectral study of photoinduced tautomerization in 1,3-diphenyl-pyrazol-5-one

88%

Ivanova B., Tchapkanov A., Arnaudov M., Petkov I.

Open Chemistry

2003

vol. 1

issue 4

356-365

The UV-photoinduced prototropic isomerization of 1,3-diphenyl pyrazol-5-one (DPhP) embedded in polyvinyl chloride (PVC) film is studied by means of difference in IR spectral analysis. The initially existing CH-form in non-irradiated compound is transformed to NH-form, and a hydrochloride salt is stabilized because of the photodegradation of the PVC. An additional comparative IR spectral study of DPhP in different solutions as well as of its hydrochloride salts in solid state is also carried out.

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2 Open Chemistry

1 2013

1 2003

1 Arnaudov M.

1 Ivanova B.

1 Marczewska B.

1 Petkov I.

1 Przegaliński M.

1 Tchapkanov A.

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Electrode processes of selected redox active substances on poly(o-aminophenol) film electrode

IR-spectral study of photoinduced tautomerization in 1,3-diphenyl-pyrazol-5-one