Results 41 to 50 of about 73,946 (166)

Key Mechanistic Features in Palladium-Catalyzed Methylcyclopropanation of Norbornenes With Vinyl Bromides: Insights From DFT Calculations

Frontiers in Chemistry, 2019
DFT calculations were performed to elucidate mechanistic details of an unusual palladium-catalyzed methylcyclopropanation from [2 + 1] cycloadditions of (Z)-2-bromovinylbenzene and endo-N-(p-tolyl)-norbornenesuccinimide.
Fang Ying, Fang Ying, Yutong Zhang, Chuyue Xiang, Zhijun Song, Hujun Xie, Weiliang Bao   +6 more
doaj   +1 more source

Molecular properties of a viral heliorhodopsin, V2HeR2

Biophysics and Physicobiology
Heliorhodopsin (HeR) is a family of microbial rhodopsin discovered in 2018, whose genes are found from archaea, bacteria, unicellular eukaryotes, and giant viruses.
Ritsu Mizutori, Kota Katayama, Masae Konno, Keiichi Inoue, Oded Béjà, Hideki Kandori   +5 more
doaj   +1 more source

Crystal structure of bis[bis(4-azaniumylphenyl) sulfone] tetranitrate monohydrate

Acta Crystallographica Section E: Crystallographic Communications, 2017
In the title compound, the hydrated tetra(nitrate) salt of dapsone (4,4′-diaminodiphenylsulfone), 2C12H14N2O2S2+·4NO3−·H2O {alternative name: bis[bis(4,4′-diazaniumylphenyl) sulfone] tetranitrate monohydrate}, the cations are conformationally similar ...
Amani Hind Benahsene, Lamia Bendjeddou, Hocine Merazig   +2 more
doaj   +1 more source

Protonation Equilibria of L-Aspartic, Citric and Succinic Acids in Anionic Micellar Media

E-Journal of Chemistry, 2009
The impact of sodium lauryl sulphate (SLS) on the protonation equilibria of L-aspartic acid, citric acid and succinic acid has been studied in various concentrations (0.5-2.5% w/v) of SLS solution maintaining an ionic strength of 0.16 mol dm-3 at 303 K ...
P. Srinivasa Rao, B. Srikanth, V. Samba Siva Rao, C. Kamala Sastry, G. Nageswara Rao   +4 more
doaj   +1 more source

Thioacetyl-Terminated Ferrocene-Anthraquinone Conjugates: Synthesis, Photo- and Electrochemical Properties Triggered by Protonation-Induced Intramolecular Electron Transfer

Molecules, 2010
Two thioacetyl-terminated ferrocene-anthraquinone donor-acceptor molecules with different π-electron conjugative units have been synthesized via a series of Stille and Sonagashira reactions.
Masaki Murata, Hiroshi Nishihara, Kosuke Namiki, Takako Fujita, Mio Kondo, Wen-Wei Zhang   +5 more
doaj   +1 more source

Proton-air and proton-proton cross sections [PDF]

EPJ Web of Conferences, 2013
Different attempts to measure hadronic cross sections with cosmic ray data are reviewed. The major results are compared to each other and the differences in the corresponding analyses are discussed. Besides some important differences, it is crucial to see that all analyses are based on the same fundamental relation of longitudinal air shower ...
openaire   +3 more sources

5-Fluorouracil—Complete Insight into Its Neutral and Ionised Forms

Molecules, 2019
5-Fluorouracil (5FU), a common anti-cancer drug, occurs in four tautomeric forms and possesses two potential sites of both protonation and deprotonation.
Justyna Wielińska, Andrzej Nowacki, Beata Liberek   +2 more
doaj   +1 more source

KCNE1 tunes the sensitivity of KV7.1 to polyunsaturated fatty acids by moving turret residues close to the binding site

eLife, 2018
The voltage-gated potassium channel KV7.1 and the auxiliary subunit KCNE1 together form the cardiac IKs channel, which is a proposed target for future anti-arrhythmic drugs. We previously showed that polyunsaturated fatty acids (PUFAs) activate KV7.1 via
Johan E Larsson, H Peter Larsson, Sara I Liin   +2 more
doaj   +1 more source

Synthesis and Photocatalytic Properties of Manganese-Substituted Layered Perovskite-like Titanates A′₂La₂Mn_xTi_3−xO₁₀ (A′ = Na, H)

Solids
The search for effective and reliable methods of photosensitization of oxide-based semiconductor materials is of great significance for their use in photocatalytic reactions of hydrogen production and environmental remediation under natural sunlight. The
Sergei A. Kurnosenko, Anastasiya I. Ustinova, Iana A. Minich, Vladimir V. Voytovich, Oleg I. Silyukov, Dmitrii V. Pankin, Olga V. Volina, Alina V. Kulagina, Irina A. Zvereva   +8 more
doaj   +1 more source

The mechanism of mammalian proton-coupled peptide transporters

eLife
Proton-coupled oligopeptide transporters (POTs) are of great pharmaceutical interest owing to their promiscuous substrate binding site that has been linked to improved oral bioavailability of several classes of drugs.
Simon M Lichtinger, Joanne L Parker, Simon Newstead, Philip C Biggin   +3 more
doaj   +1 more source