Rare-earth metal diphthalocyanine complexes with R substituents,R_8Pc_2MH(where Pc=phthalocyanine;R=propoxy,t-butyl;M=Er,Lu),were prepared.Their films on basal plane pyrolytic graphite and on indium-tin oxide Ncsa gla...Rare-earth metal diphthalocyanine complexes with R substituents,R_8Pc_2MH(where Pc=phthalocyanine;R=propoxy,t-butyl;M=Er,Lu),were prepared.Their films on basal plane pyrolytic graphite and on indium-tin oxide Ncsa glass electrodes in several aqueous electrolytes were investigated by voltammetric analysis and in situ electronic absorption spectroscopy at controlled potentials.These modified electrodes showed multi-color electrochromic behavior as a result of multi-step redox reaction.The film color turned from original green through orange to red in an oxidation process,and through dark blue to purplish in a reduction process.展开更多
文摘Rare-earth metal diphthalocyanine complexes with R substituents,R_8Pc_2MH(where Pc=phthalocyanine;R=propoxy,t-butyl;M=Er,Lu),were prepared.Their films on basal plane pyrolytic graphite and on indium-tin oxide Ncsa glass electrodes in several aqueous electrolytes were investigated by voltammetric analysis and in situ electronic absorption spectroscopy at controlled potentials.These modified electrodes showed multi-color electrochromic behavior as a result of multi-step redox reaction.The film color turned from original green through orange to red in an oxidation process,and through dark blue to purplish in a reduction process.
