%0 Journal Article %1 Schulz.1988 %A Schulz, Andreas %A Kaim, Wolfgang %A Hausen, Hans Dieter. %D 1988 %J Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases %K ESR cation cation;heterocyclic pyrazinium quinoxalinium radical salt %N 10 %P 3207--3214 %R 10.1039/f19888403207 %T Crystalline heterocyclic radical cation salts as stable intermediates of new redox-mediating systems %V 84 %X N,N'-Dialkylpyrazinium and -quinoxalinium radical cations have been isolated as stable iodide or tetraphenylborate salts. ESR spectroscopy of these materials reveals delocalization of seven p electrons in the 1,4-diazine ring, but no intermol. spin-pairing in the solid state, results which are supported by structural data for the pyrazinium radical cation salt. The thermodn. stability and chem. persistence of these intermediates suggest their use as electron-transfer mediators by analogy with the Me viologen system. [on SciFinder(R)]

@article{Schulz.1988, abstract = {N,N'-Dialkylpyrazinium and -quinoxalinium radical cations have been isolated as stable iodide or tetraphenylborate salts. ESR spectroscopy of these materials reveals delocalization of seven \textgreek{p} electrons in the 1,4-diazine ring, but no intermol. spin-pairing in the solid state, results which are supported by structural data for the pyrazinium radical cation salt. The thermodn. stability and chem. persistence of these intermediates suggest their use as electron-transfer mediators by analogy with the Me viologen system. [on SciFinder(R)]}, added-at = {2022-06-15T11:26:56.000+0200}, author = {Schulz, Andreas and Kaim, Wolfgang and Hausen, Hans Dieter.}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2fbff517832efd4f12b27b6e7b1017038/huebleriac}, doi = {10.1039/f19888403207}, interhash = {686ce425a0c75f93848c734552aaa26c}, intrahash = {fbff517832efd4f12b27b6e7b1017038}, issn = {0300-9599}, journal = {Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases}, keywords = {ESR cation cation;heterocyclic pyrazinium quinoxalinium radical salt}, number = 10, pages = {3207--3214}, timestamp = {2022-06-15T09:26:56.000+0200}, title = {Crystalline heterocyclic radical cation salts as stable intermediates of new redox-mediating systems}, volume = 84, year = 1988 }