72087-86-6Relevant academic research and scientific papers
Spectroscopic and electrical characterization of α,γ-bisdiphenylene-β-phenylallyl radical as an organic semiconductor
Matsui, Yasunori,Shigemori, Minoru,Endo, Toshiyuki,Ogaki, Takuya,Ohta, Eisuke,Mizuno, Kazuhiko,Naito, Hiroyoshi,Ikeda, Hiroshi
, p. 4765 - 4774 (2018)
The semiconductor properties of the earliest known stable radical, α,γ-bisdiphenylene-β-phenylallyl radical (Koelsch radical, 1?) were assessed using spectroscopic and electrical techniques. This radical undergoes reversible redox processes, an
Characterization of the Excited-State Reactivity of a Persistent Aryl-Substituted Allyl Free Radical
Breslin, David T.,Fox, Marye Anne
, p. 13341 - 13347 (2007/10/02)
A family of stable aryl-substituted allyl radicals 1 (9H-fluoren-9-yl-9--9-ylidenephenylmethyls) has been characterized by electronic absorption spectroscopy, semiempirical (AM1) molecular orbital calculations, and cyclic voltammetry.Photolysis of 1a in aerated solvents that are poorer hydrogen atom sources than toluene resulted in oxygenation (ΦOX ca. 5 * 10-4) and cleavage products.A thermally reversible photocyclization mechanism is proposed to explain the oxygenation of 1a in inert solvents.Enhanced excited-state reactivity toward hydrogen and halogen atom donors was observed during the steady-state photolysis of 1a.Electron transfer from naphthalene to an excited state of 1a produces an extremely short lived (30 ps) 1a anion/naphthalene radical cation geminate pair.
