Spectral features of electrochemiluminescence accompanying reduction of aryldiazonium salts on a copper cathode |
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| Affiliation: | 1. Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam;2. Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Vietnam;3. Department of Biochemistry, Chulalongkorn University, Bangkok, Thailand;4. Department of Genetics, Faculty of Agriculture, Damietta University, Damietta, Egypt;5. School of Biotechnology, Jawaharlal Nehru University, New Delhi, India;6. School of Chemical Sciences, Central University of Haryana, Mahendragarh, Haryana, India;1. Leibniz-Institut für Analytische Wissenschaften – ISAS – e.V., Department Berlin, Schwarzschildstraße 8, 12489 Berlin, Germany;2. School of Analytical Sciences Adlershof (SALSA), Humboldt University of Berlin, IRIS-Building, Adlershof, Unter den Linden 6, 10099 Berlin, Germany;3. Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Institut für Si-Photovoltaik, Kekuléstr. 5, 12489 Berlin, Germany;4. Department of Materials Science, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia;5. Federal Institute for Materials Research and Testing, Unter den Eichen 87, 12205 Berlin, Germany;1. Graduate School of Science and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan;2. Faculty of Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan;3. National Institute of Technology, Kagawa College, 551 Koda, Takuma-cho, Mitoyo, Kagawa 769-1192, Japan;4. Materials Design Center, Research Institute, Kochi University of Technology, 185 Miyanokuchi, Tosayamada-cho, Kami, Kochi 782-8502, Japan |
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| Abstract: | Spectra of electrochemiluminescence (ecl) accompanying reduction of selected aryldiazonium cations (ADAC), originating from tetrafluoroborate salts, on a copper electrode were measured and compared with known fluorescence spectra of some expected products. In addition, changes of integral ecl intensity in time and its dependence on cathodic current density were investigated to shed more light on the nature of this phenomenon. With the aid of PM3 CI method it was possible to interpret ecl spectra and state that ecl occurs as a result of the recombination of two primarily formed azophenyl radicals or azophenyl and phenyl radicals – created upon N2 elimination from the former entities. |
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