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Nitrobenzene

About: Nitrobenzene is a research topic. Over the lifetime, 5285 publications have been published within this topic receiving 83368 citations. The topic is also known as: essence of mirbane & nitrobenzol.


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Journal ArticleDOI
TL;DR: It was found that in MnO(x)/GAC catalytic ozonation, the degradation efficiency of nitrobenzene was higher under low pH conditions than under high pH conditions, and higher pH condition favored ozone decomposition.

228 citations

Journal ArticleDOI
TL;DR: In this paper, the nitrobenzene anion radical (C6H5NO2) was prepared by constant potential electrolysis of nitro benzene solutions at a mercury pool electrode placed directly inside the microwave cavity of an electron spin resonance spectrometer.
Abstract: : The nitrobenzene anion radical, (.C6H5NO2)(-), was prepared by constant potential electrolysis of nitrobenzene solutions at a mercury pool electrode placed directly inside the microwave cavity of an electron spin resonance spectrometer. Acetonitrile was used as a solvent with tetra-n-propylammonium perchlorate as supporting electrolyte. Well-resolved electron spin resonance spectra of the radical reduction product exhibit a hyperfine structure consisting of fifty-four components. Hyperfine coupling constants were assigned for the interaction of the unpaired electron with the various ring protons and the nitrogen nucleus. The odd electron distribution in the molecule is seen to be at least qualitatively in agreement with that predicted by conventional valence bond theory. The large hyperfine interaction with the nitrogen nuclear moment is presumed to arise from a sigma-pi exchange interaction on the nitrogen atom. Electrochemical generation in acetonitrile offers advantages over conventional alkali metal reductions in solvents such as tetrahydrofuran and 1,2-dimethoxyethane. (Author)

225 citations

Journal ArticleDOI
01 Feb 2006-Carbon
TL;DR: In this article, the effect of zinc oxide loading to granular activated carbon on Pb(II) adsorption from aqueous solution was studied in comparison with zinc oxide particles and oxidized activated carbon.

210 citations

Journal ArticleDOI
TL;DR: In this paper, a single-step catalytic hydrogenation of nitrobenzene in acid medium is described, which achieves selectivity to p-aminophenol as high as 75% under the best set of conditions.

208 citations

Journal ArticleDOI
TL;DR: Benzene and a variety of substituted benzenes inhibited ammonia oxidation by intact cells of Nitrosomonas europaea and was also oxidized to produce phenolic compounds from benzene, ethylbenzene, halobenzenes, phenol, and nitrobenzenes.
Abstract: Benzene and a variety of substituted benzenes inhibited ammonia oxidation by intact cells of Nitrosomonas europaea. In most cases, the inhibition was accompanied by transformation of the aromatic compound to a more oxidized product or products. All products detected were aromatic, and substituents were often oxidized but were not separated from the benzene ring. Most transformations were enhanced by (NH4)2SO4 (12.5 mM) and were prevented by C2H2, a mechanism-based inactivator of ammonia monooxygenase (AMO). AMO catalyzed alkyl substituent hydroxylations, styrene epoxidation, ethylbenzene desaturation to styrene, and aniline oxidation to nitrobenzene (and unidentified products). Alkyl substituents were preferred oxidation sites, but the ring was also oxidized to produce phenolic compounds from benzene, ethylbenzene, halobenzenes, phenol, and nitrobenzene. No carboxylic acids were identified. Ethylbenzene was oxidized via styrene to two products common also to oxidation of styrene; production of styrene is suggestive of an electron transfer mechanism for AMO. Iodobenzene and 1,2-dichlorobenzene were oxidized slowly to halophenols; 1,4-dichlorobenzene was not transformed. No 2-halophenols were detected as products. Several hydroxymethyl (-CH2OH)-substituted aromatics and p-cresol were oxidized by C2H2-treated cells to the corresponding aldehydes, benzaldehyde was reduced to benzyl alcohol, and o-cresol and 2,5-dimethylphenol were not depleted.

204 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023171
2022342
2021123
2020129
2019123
2018146