Formation of triphenylmethyl radicals in the thermolysis of polydiphenylenesulfophthalide and polytriphenylcarbinol

Triphenylmethyl radicals are formed in the thermolysis of polytriphenylcarbinol and polydiphenylenesulfophthalide, which give rise to ESR singlets with poorly resolved hyperfine structure and two bands in the electronic absorption spectra.Institute of Organic Chemistry, Urals Branch, Russian Academy of Sciences, 450054 Ufa. Translated from Izvestiya Akademii Nauk, Seriya Khimicheskaya, No. 7, pp. 1682–1685, July, 1992.