| Abstract
| - 4,7-Bis(dialkylamino)benzo[c][1,2,5]chalcogenadiazoles are a novel class of organic dyes that undergoreversible two-stage one-electron oxidation as well as one-electron reduction. They exhibit absorptionmaxima in the long-wavelength region, which are assigned as intramolecular charge transfer bandsfrom the phenylenediamine moiety to the electron-accepting heterocycle. Their redox properties aswell as molecular and crystal structures are affected by the alkyl substituents on the amino nitrogenand/or by the chalcogen atom (O, S, Se) in the heterocycle.
|
