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- W2040493822 abstract "Disproportionation of lutetium diphthalocyanine, Pc2Lu, is shown to occur inside the film when a Pc2Lu electrode is cycled in contact with an acidic aqueous electrolyte. The voltammetric peak around 0.4 V (vs. SCE) is a two-electron peak and corresponds to the blue/orange transition HPc2Lu - 2 ρ− = Pc2Lu+ + H+. Charge compensation is obtained by a flow of protons between the film and the solution. However, green Pc2Lu is observed by spectroscopy during the translation, which means that the disproportionation reaction 2 Pc2Lu + H+ = HPc2Lu + Pc2Lu+ is not total. The conditional disproportionation constant is estimated independently by spectroscopy and voltammetry. On a virgin electrode, disproportionation does not occur by a simple contact with the acidic solution: the first voltammetric scan, necessarily positive, is a one-electron step, Pc2Lu - e− → Pc2Lu+. Penetration of the anion of the electrolyte into the film produces charge compensation." @default.
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- W2040493822 date "1987-09-01" @default.
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- W2040493822 title "Electrochemistry of a lutetium diphthalocyanine film in contact with an acidic aqueous medium" @default.
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- W2040493822 doi "https://doi.org/10.1016/0022-0728(87)85007-6" @default.
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