Journal ArticleDOI
Photoinduced Paramagnetism in Solutions of Nitrobenzene in Tetrahydrofuran
TLDR
In this paper, photo-induced paramagnetism in solutions of nitrobenzene in undeuterated and deuterated tetrahydrofuran (THF) was investigated.Abstract:
ESR studies are reported of photoinduced paramagnetism in solutions of nitrobenzene in undeuterated and deuterated tetrahydrofuran (THF). The ESR spectrum exhibits a widely spaced set of identical triplets, and the extra proton hyperfine interaction (0.38 plus or minus 0.04 Oe) is due to a single alpha proton of the THF molecule. The experiments of Lagercrantz and Yhland with trinitrobenzene were also repeated, and the following mechanism for the production of the paramagnetic species is proposed: Light irradiation causes the nitro group to abstract an alpha hydrogen atom from the THF molecule, and the resulting THF free radicais rapidly dimerize or disproportionate, leaving a neutral nitrobenzene free radical in solution. The radical has a totai decay time of approximates 2 sec and is suspected to reside on an oxygen atom. (D.L.C.)read more
Citations
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Chemistry of organosilicon compounds
TL;DR: In this paper, two 1,2-disilacyclobutenes were prepared by the reaction of tetramethyldisilene with acetylenes, and several reactions of these new 1 2 disilacy clobutenets including oxidation, silylene insertion, iron carbonyl insertion, and addition to acetylene and dienes are reported.
Journal ArticleDOI
Reactions of resonance stabilized anions. XXIX. Electron-transfer processes. 7. Formation of paramagnetic and condensation products from nitrosobenzene in basic solution
Glen A. Russell,Edwin J. Geels,Frank J. Smentowski,Kuo-Yuan Chang,James H. Reynolds,Gerd Kaupp +5 more
Journal ArticleDOI
Hydrogen Atom Adducts to Nitrobenzene: Formation of the Phenylnitronic Radical in the Gas Phase and Energetics of Wheland Intermediates
TL;DR: In this article, it was shown that the major unimolecular dissociation of 1 was loss of OH radical to form nitrosobenzene as determined by variable-time neutralization−reionization mass spectrometry.
References
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Journal ArticleDOI
An Electron Spin Resonance Study of Nitro Group-Alkali Metal Interactions in Aromatic Hydrocarbons1
TL;DR: In this paper, the reaction of potassium and sodium with nitrobenzene, o- dinitrobenzenene, m-dinitronzene and trintromesitylene in 1,2-dimethoxyethane (DME) was carried out, and the resulting paramagnetic solutions studied using electron spin resonance techniques.
Journal ArticleDOI
Photo-Induced Electron Spin Resonance in Solutions of Some Electron-Donor-Acceptor Complexes.
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