Results 101 to 110 of about 98,718 (288)

Fluorine-Containing Dibenzoanthracene and Benzoperylene-Type Polycyclic Aromatic Hydrocarbons: Synthesis, Structure, and Basic Chemical Properties

Molecules, 2018
Intramolecular photocyclization of stilbene derivatives (Mallory reaction) is one of the efficient methods for building polycyclic aromatic hydrocarbon (PAH) frameworks, and is also expected to be applicable to synthesis of fluorine-containing PAHs (F ...
Otohiro Gotsu, Tomomi Shiota, Hiroki Fukumoto, Tomoko Kawasaki-Takasuka, Takashi Yamazaki, Tomoko Yajima, Tomohiro Agou, Toshio Kubota   +7 more
doaj   +1 more source

Synthesis of Coal Tar‐Based Hypercrosslinked Polymers via Friedel‐Crafts Alkylation: An Efficient Way to Access Carbon Electrode Material for Supercapacitors

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Liquid coal tar (CT) is synthesized into hypercrosslinked polymers (HCPs) via the Friedel–Crafts alkylation, followed by oxidation‐carbonization to form disordered microporous carbon. The resulting CF2CT exhibits a high three‐electrode specific capacitance of 342 F g−1 at 1 A g−1, and the assembled symmetric supercapacitor illuminates a light sign ...
Zhichao Ren, Yanchun Pei, Xueyan Wu, Yan Lv, Rui Xue, Jixi Guo, Xiaogang Zhang   +6 more
wiley   +1 more source

Exploring the possibility of polycyclic aromatic hydrocarbons and fulleranes as the carrier of the 21 micron emission feature

Frontiers in Astronomy and Space Sciences
IntroductionThe 21 μm emission feature discovered in a small sample of carbon-rich protoplanetary nebulae has remained unidentified for over 30 years. A dozen of different molecular species (both organics and inorganics) have been proposed as the carrier
Xuan-Xiang Liao, Yong Zhang, Yong Zhang, SeyedAbdolreza Sadjadi   +3 more
doaj   +1 more source

Multiphase reactivity of polycyclic aromatic hydrocarbons is driven by phase separation and diffusion limitations

Proceedings of the National Academy of Sciences of the United States of America, 2019
Significance Polycyclic aromatic hydrocarbons (PAHs) are among the most prominent toxic compounds in the air. Heterogeneous reactions involving O3 can change the toxicity of PAHs, but the reaction mechanism and kinetics remain to be elucidated.
Shouming Zhou, Brian C. H. Hwang, P. Lakey, A. Zuend, J. Abbatt, M. Shiraiwa   +5 more
semanticscholar   +1 more source

Epigenotoxicity: Decoding the epigenetic imprints of genotoxic agents and their implications for regulatory genetic toxicology

Environmental and Molecular Mutagenesis, EarlyView.
Abstract Regulatory genetic toxicology focuses on DNA damage and subsequent gene mutations. However, genotoxic agents can also affect epigenetic marks, and incorporation of epigenetic data into the regulatory framework may thus enhance the accuracy of risk assessment.
Roger Godschalk, Christopher Faulk, Jessica LaRocca, Jan van Benthem, Francesco Marchetti   +4 more
wiley   +1 more source

Recent Advances in Conjugated Microporous Polymers for Photocatalysis: Mechanism, Synthesis and Applications

Exploration, EarlyView.
Conjugated microporous polymers (CMPs) have attracted more and more attention as new photocatalysts due to their unique advantages such as high performance, long stability and strong light absorption. This review summarizes the application of CMPs as a photocatalyst in recent years and introduces the catalytic mechanism.
Dun Zhou, Kongqing Zhang, Xiaobai Li, Yongpeng Liu, Liang Yao, Hongwei Ma   +5 more
wiley   +1 more source

Polycyclic Aromatic Hydrocarbons with armchair edges and the 12.7 {\mu}m band

, 2014
In this Letter we report the results of density functional theory calculations on medium-sized neutral Polycyclic Aromatic Hydrocarbon (PAH) molecules with armchair edges.
Candian, A., Sarre, P. J., Tielens, A. G. G. M.   +2 more
core   +1 more source

Potential role of polycyclic aromatic hydrocarbons as mediators of cardiovascular effects from combustion particles

Environmental Health, 2019
Air pollution is the most important environmental risk factor for disease and premature death, and exposure to combustion particles from vehicles is a major contributor.
J. Holme, B. Brinchmann, M. Refsnes, M. Lag, J. Øvrevik   +4 more
semanticscholar   +1 more source

π‐Expanded Fluoranthenes as Chromophores With Tailored Properties

Helvetica Chimica Acta, EarlyView.
A series of π‐expanded fluoranthene scaffolds selectively functionalized with electron donors and acceptors were synthesized. The evolution of the structural, optoelectronic, and redox properties in relation to substitution and cyclization was comprehensively studied both in experiment and in theory. The results identify the compounds as highly tunable
Silas C. Eiden, Erik Misselwitz, John Bergner, Frank Rominger, Milan Kivala   +4 more
wiley   +1 more source

The abundances of hydrocarbon functional groups in the interstellar medium inferred from laboratory spectra of hydrogenated and methylated polycyclic aromatic hydrocarbons

, 2013
Infrared (IR) absorption spectra of individual polycyclic aromatic hydrocarbons (PAHs) containing methyl (-CH3), methylene (>CH2), or diamond-like *CH groups and IR spectra of mixtures of methylated and hydrogenated PAHs prepared by gas phase ...
Friedrich, Manfred, Henning, Thomas, Huisken, Friedrich, Jäger, Cornelia, Müllen, Klaus, Plass, Winfried, Räder, Hans-Joachim, Steglich, Mathias   +7 more
core   +1 more source