Results 31 to 40 of about 643,193 (264)
Self-assembly and photoinduced fabrication of conductive nanographene wires on boron nitride
Nature Communications, 2022 The bottom-up fabrication of structures with robust performance in the nm-to-μm scale usable for integrated carbon nanodevices is challenging. Here the authors report micrometer-long, highly conducting nanographene wires following self-assembly, photo ...
Xiaoxi Zhang +13 more
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Melanosis coli as a factor in the development of colorectal cancer
Амбулаторная хирургия, 2021 Melanosis coli is characteristic of patients with a long history of constipation and the use of laxatives – anthraquinone derivatives, which are quite prescribed by doctors and patients independently.
D. A. Mtvralashvili +4 more
doaj +1 more source
, 2021 The chemical structure and location of substituents on anthracene derivatives influence the electron balance of the aromatic system, thus determining the wavelengths at which light is absorbed, which results in the photochemically induced dimerization or
Brancart, Joost +3 more
core +1 more source
Регуляторные исследования и экспертиза лекарственных средств, 2022 Currently experts are actively working on Russian specifications for herbal drugs, herbal drug preparations, and herbal medicinal products, and specifically on analytical procedures to evaluate the quality of these medicines. The aim of this study was to
V. A. Kurkin
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Photochemical Formation of Anthracene Quinone Methide Derivatives [PDF]
The Journal of Organic Chemistry, 2017 Anthrols 2-7 were synthesized and their photochemical reactivity investigated by irradiations in aq CH3OH. Upon excitation with visible light (λ > 400 nm) in methanolic solutions, they undergo photodehydration or photodeamination and deliver methyl ethers, most probably via quinone methides (QMs), with methanolysis quantum efficiencies ΦR = 0.02-0.3 ...
Đani Škalamera +7 more
openaire +3 more sources
Macedonian Journal of Chemistry and Chemical Engineering, 2012 Radical oxidation and addition reactions of anthracene (1), 9-methylanthracene (2) and 9-phenylanthracene (3) were investigated with dimethyl malonate (4) in the presence of ceric ammonium nitrate (CAN) and manganese(III) acetate (Mn(OAc)3).
Mustafa Zengin +3 more
doaj +1 more source
Synthesis and Characterisation of Anthracene Tagged Imidazolium Derivatives [PDF]
, 2016 Six new novel anthracene tagged imidazolium derivatives were successfully synthesized and characterized. [9,10-bis{(Nethoxycarbonylphenylimidazolium)methyl}anthracene] dichloride and [9,10-bis{(N-isopropylimidazolium)methyl}anthracene] dichloride were
Dudeja, Sahil, G, Prabusankar
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Journal of Education, Health and Sport, 2019 The article presents a new method of ethanol extraction of anthracene derivatives from the herb St. John's wort, the total content of which was evaluated using a calibration graph. The drug improved mineral metabolism, showed anti-inflammatory effects in
S. A. Schneider +3 more
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Functionalization of anthracene: A selective route to brominated 1,4-anthraquinones
Beilstein Journal of Organic Chemistry, 2011 Efficient and stereoselective syntheses are described for the preparation of 2,3,9,10-tetrabromo-1,4-dimethoxy-1,2,3,4-tetrahydroanthracenes 7, 8 and the corresponding 1,4-diol 17 by silver ion-assisted solvolysis of hexabromotetrahydroanthracene 6. Base-
Kiymet Berkil Akar +3 more
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Single‐Chromophore Homojunction Organic Solar Cells: A Path to Simplicity and Efficiency
Advanced Materials, EarlyView.This perspective discusses how the intrinsic optoelectronic properties of organic semiconductors, their molecular packing in the solid‐state, and internal energetic gradients within a device can enable free‐charge carrier generation in homojunction organic solar cells.
Shaun McAnally +2 more
wiley +1 more source