In Situ Observation of Adsorbed Heptylviologen Cation Radicals by Slab Optical Waveguide Spectroscopy Utilizing Indium-tin-oxide Electrode
In situ observation of absorption spectra of heptylviologen cation radical (HV+·) was performed by slab optical waveguide (SOWG) spectroscopy utilizing indium-tin-oxide (ITO) electrodes. It was found that HV+· existed as both monomer and dimer on ITO with a monolayer deposition. With Nafion coated I...
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| Veröffentlicht in: | Chemistry letters 1998-01, Vol.27 (2), p.125-126 |
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| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | In situ observation of absorption spectra of heptylviologen cation radical (HV+·) was performed by slab optical waveguide (SOWG) spectroscopy utilizing indium-tin-oxide (ITO) electrodes. It was found that HV+· existed as both monomer and dimer on ITO with a monolayer deposition. With Nafion coated ITO, a band at about 555 nm disappeared, which indicated that this band was assigned to the adsorbed species consisting of HV+· and the counter anion (Br−). |
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| ISSN: | 0366-7022 1348-0715 |
| DOI: | 10.1246/cl.1998.125 |