Abstract
The title electron donors 1 as well as their conjugate bases 2- undergo reversible two-stage one-electron oxidation. ESR analysis indicated the important contribution of zwitterionic structure for radicals 2·. Bis(zwitterionic) but not quinoid structure was suggested for p-4, generated from the twin-type dianionic donor p-42- with a p-phenylene spacer.
Original language | English |
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Pages (from-to) | 7881-7884 |
Number of pages | 4 |
Journal | Tetrahedron Letters |
Volume | 44 |
Issue number | 43 |
DOIs | |
Publication status | Published - 2003 Oct 20 |
Externally published | Yes |
Keywords
- Electrochromism
- Electron donor
- Phenylenediamine
- Proton transfer
- Radical
- Redox system
- Response system
- Zwitterion
ASJC Scopus subject areas
- Biochemistry
- Drug Discovery
- Organic Chemistry