Results 11 to 20 of about 26,347 (256)
A study of the behaviour of some substituted 1,2,4-triazoline-3-thiones in different media [PDF]
Journal of the Serbian Chemical Society, 2000 The acid-base behaviour of 4-phenyl-5-(4-R-benzyl)-1,2,4-triazoline-3-thione (1(R = OH); 2(R = OC2H5)) was studied in aqueous sulfuric acid and sodium hydroxide solutions.
Arman-Zubić Lučijana +2 more
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Proton number fluctuations in partial chemical equilibrium [PDF]
Physical Review C, 2021 We calculate volume-independent ratios of cumulants of the net-proton number distribution up to sixth order in a fireball that cools down after the chemical freeze-out. A hadron resonance gas model is used together with the assumption of partial chemical equilibrium, which fixes the number of observed stable hadrons after the chemical freeze-out. It is
Boris Tomášik +2 more
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Protonation of apolar species: From Cl2H+ to (E)-NCCHCHCNH+ through computational investigations
Frontiers in Astronomy and Space Sciences, 2023 Radioastronomy is a powerful tool for the discovery of molecules in space but it requires molecular species to be polar. The observation of apolar species can be however enabled by protonation, which occurs from reaction with the abundant H3+ ion ...
Silvia Alessandrini +3 more
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Acid–base equilibria of the Zn(II) and Fe(III) complexes with condensation products of 2-acetylpyridine and the dihydrazide of oxalic and malonic acid [PDF]
Journal of the Serbian Chemical Society, 2009 Acid–base equilibria of Zn(II) and Fe(III) complexes with N',N'2-bis[(1E)-1-(2-pyridyl)ethylidene]ethanedihydrazide (ligand L1) and N',N'2-bis[(1E)-1-(2-pyridyl)ethylidene]propanedihydrazide (ligand L2), i.e., [Fe(L1)Cl2(H2O)], [Fe(L2)Cl(H2O)]2+, [Zn(L1)(
DUŠAN SLADIĆ +6 more
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Kelvin–Helmholtz Instability at Proton Scales with an Exact Kinetic Equilibrium [PDF]
The Astrophysical Journal, 2020 Abstract The Kelvin–Helmholtz instability (KHI) is a ubiquitous physical process in ordinary fluids and plasmas, frequently observed also in space environments. In this paper, kinetic effects at proton scales in the nonlinear and turbulent stage of the KHI have been studied in magnetized collisionless plasmas by means of hybrid Vlasov ...
A. Settino +5 more
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On the mechanism of chloroquine resistance in Plasmodium falciparum. [PDF]
PLoS ONE, 2010 Resistance to chloroquine of malaria strains is known to be associated with a parasite protein named PfCRT, the mutated form of which is able to reduce chloroquine accumulation in the digestive vacuole of the pathogen.
Mauro Chinappi +3 more
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Protonation Equilibria of Biologically Active Ligands in Mixed Aqueous Organic Solvents
Bioinorganic Chemistry and Applications, 2014 The review is mainly concerned with the protonation equilibria of biologically active ligands like amino acids, peptides, DNA constituents, and amino acid esters in nonaqueous media.
Ahmed A. El-Sherif +3 more
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E-Journal of Chemistry, 2007 The protonation constants of diamines such as ethylenediamine, 1,2-diaminopropane, 1,3-diaminopropane, o-phenylenediamine, m-phenylene-diamine, p-phenylenediamine were determined on the basis of Bjerrum and Calvin method in methanol-water mixtures.
Sangita Sharma +4 more
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Molecular Synchronization Enhances Molecular Interactions: An Explanatory Note of Pressure Effects
Crystals, 2018 In this study, we investigated a unique aspect of the supramolecular polymerization of tetrakis (4-sulfonatophenyl) porphyrin (TPPS), a self-assembling porphyrin, under non-equilibrium conditions by subtracting the effects of back-pressure on its ...
Munenori Numata, Chisako Kanzaki
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Scientific Reports, 2021 The stability of two groups of conformationally locked molecules, similar in topology, but differing only by the type of the bridge rigidifying their structure, is studied.
Małgorzata A. Kaczorowska +2 more
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