Topic
Aromatic hydrocarbon
About: Aromatic hydrocarbon is a research topic. Over the lifetime, 5814 publications have been published within this topic receiving 55499 citations. The topic is also known as: arene & arenes.
Papers published on a yearly basis
Papers
More filters
15 Nov 1988
TL;DR: In this article, the possibilities of the formation of a non-fluorescent charge transfer complex in the course of quenching and the participation of excited electronic states of the ion pair at the encounter of fluorescer and quencher are examined for aromatic hydrocarbon-tetracyanoethylene and aromatic hydrocar-pyromellitic dianhydride systems in acetonitrile with the photolysis method.
Abstract: In relation to the fact that there are no clear-cut experimental results indicating the “inverted region” in the strongly exothermic charge separation (CS) in the fluorescence quenching reaction, the possibilities of (a) formation of a nonfluorescent charge transfer complex in the course of quenching and (b) participation of excited electronic states of the ion pair in the course of CS at the encounter of fluorescer and quencher are examined for aromatic hydrocarbon-tetracyanoethylene and aromatic hydrocarbon-pyromellitic dianhydride systems in acetonitrile with the picosecond laser photolysis method. Both (a) and (b) are shown improbable as mechanisms for the lack of an inverted region in the photoinduced CS reaction. Discussions on these results are given on the basis of a new theoretical treatment.
58 citations
TL;DR: To produce quality jet biofuel with high amount of alkanes and low amount of aromatic hydrocarbons, two zeolites of HY and HZSM-5 supporting Ni and Mo were used as catalysts to convert soybean oil into jet fuel.
58 citations
TL;DR: In this paper, a thorough study of toluene's reaction products in simulated atmospheric conditions was conducted and an account of the products found and outline their probable formation and destruction mechanisms were presented.
Abstract: Atmospheric hydrocarbons have an important influence on the chemistry of the polluted lower atmosphere. Aromatic hydrocarbons or benzene derivatives comprise about 25–40% of gasoline in the US1 and they are widely employed as solvents. Toluene is the most commonly used aromatic hydrocarbon and is often the most abundant of all non-methane hydrocarbons in urban atmospheres. Typical urban toluene concentrations range from 1 to 50 p.p.b. (parts per 109)2,3 and clean-air concentrations up to 0.4 p.p.b. have been reported4. The aromatic hydrocarbons are destroyed by reaction with atmospheric hydroxyl radical (HO) and toluene remains in the atmosphere for about 50 daylight hours before reacting. Despite extensive study, toluene's reaction products are poorly understood5. Many reaction products have been identified, but most of these are ring-addition or side-chain oxidation products which retain the aromatic character of toluene. We have conducted a thorough study of toluene's oxidation products in simulated atmospheric conditions and present here an account of the products found and outline their probable formation and destruction mechanisms.
58 citations
TL;DR: Proteomics approaches globally have identified and quantified bacterial enzymes responsible for aromatic hydrocarbon metabolism, which significantly assists in determining strategies for the biodegradation of aromatic hydrocarbons with applications in environmental bioremediation.
58 citations
TL;DR: While there are some interesting clues concerning potentially toxic intermediates, and much important information has been obtained, the metabolic pathway and agent(s) responsible for the hematological toxicity of benzene remains unidentified.
Abstract: The metabolite of benzene that is responsible for its hematological toxicity is unknown. Benzene is of course the parent aromatic hydrocarbon and mush attention has been focussed on classical pathways of aromatic hydrocarbon metabolism in the search for toxic benzene metabolites. Elegant studies by a number of groups, including work presented at this symposium by Snyder, Irons, and Tunek, have evaluated metabolites such as benzene oxide, catechol, phenol, hydroquinone and their derivatives (See reviews by Snyder et al, 1977; Laskin and Goldstein, 1977). While there are some interesting clues concerning potentially toxic intermediates, and much important information has been obtained, the metabolic pathway and agent(s) responsible for the hematological toxicity of benzene remains unidentified.
58 citations