Flavosemiquinone model systems. Part 1. 4-Hydro-1-alkylpyrazinium radical cations
- 1 January 1984
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 2
- No. 8,p. 1357-1359
- https://doi.org/10.1039/p29840001357
Abstract
Reduction of 1-alkylpyrazinium iodides in acidic media produces 4-hydro-1-alkylpyrazinium radical cations. These persistent species were identified and characterized by high, resolution e.s.r., and assignments of coupling constants were made on the basis of deuteriation experiments and Hückel MO correlations. The spin distribution in these radicals and in related systems, especially in flavosemiquinone cations, is discussed.Keywords
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