Electron paramagnetic resonance, ENDOR and TRIPLE resonance of some 9, 10-anthraquinol radicals in solution. Part 4.—Anthraquinolsulphonates

Abstract

EPR, ENDOR and TRIPLE resonance spectra are recorded for 9, 10-anthraquinol-1-sodium sulphonate, 9,10-anthraquinol-2-sodium sulphonate, 9,10-anthraquinol-1,5-disodium sulphonate and 9,10-anthraquinol-2,6-disodium sulphonate cation radicals. The splittings of the 9,10-anthraquinol cation radical have been assigned by deuteration. The spectra of the deuterated anthraquinol cation radicals and the assignment of hyperfine coupling constants are discussed.