Electronic spectra ofp-benzosemiquinone ions
- 1 January 1964
- journal article
- research article
- Published by Taylor & Francis in Molecular Physics
- Vol. 8 (3) , 265-271
- https://doi.org/10.1080/00268976400100301
Abstract
The absorption spectra of non-substituted, 2,5-dimethyl-, 2,5-di-tert-butyl-, trimethyl-, tetramethyl-p-benzosemiquinone ions have been measured. In alkaline ethylene glycol fairly stable semiquinone ions were prepared by an oxidation of hydroquinones or by a reduction of quinones at room temperature. It is found that in visible or near ultra-violet region p-benzosemiquinone ions have three intense absorption bands due to π→π* allowed transitions in addition to a weak absorption in the region 450 ∼ 550 mμ presumably due to n → π* transition.Keywords
This publication has 4 references indexed in Scilit:
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- On the Optical Absorption Spectra of Semiquinone IonsBulletin of the Chemical Society of Japan, 1961
- Primary photoprocesses in quinones and dyes I. Spectroscopic detection of intermediatesProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1958
- The formation constant of durosemiquinoneTransactions of the Faraday Society, 1953