Quantum Chemical Studies on the Prototropic and Acid/Base Equilibria for 2-Aminopyrrole in Vacuo—Role of CH Tautomers in the Design of Strong Brønsted Imino N-Bases [PDF]
MoleculesIn the quest of the pivotal origin of the very strong gas-phase proton basicity for some iminopyrrole derivatives, proposed in the literature on the basis of quantum chemical calculations, the full tautomeric and acid/base equilibria were investigated in
Ewa Daniela Raczyńska +2 more
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Acid Yellow 9 Azo Dye Gets the Blues: An Optical Spectroscopy and DFT Study of Unusual Photochemistry in Multilayer Films with PAH and Chitosan [PDF]
MoleculesMultilayer and free-standing films self-assembled from water-soluble anionic azo dye acid yellow 9 (AY9) and both poly(allylamine hydrochloride) (PAH) and chitosan (CS) cationic polyelectrolytes were fabricated from water solution using a layer-by-layer (
Mikhail Kim +3 more
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Physicochemical Characterization of Kynurenine Pathway Metabolites [PDF]
AntioxidantsThe kynurenine pathway is a significant metabolic route involved in the catabolism of tryptophan, producing various bioactive metabolites with crucial roles as antioxidants in immune regulation and neurobiology.
Luca Buzásy +7 more
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Teaching Acid-Base Equilibria by Using Log-log Diagrams
CHIMIA, 2022 The purpose of this column consists in illustrating the utility of log-log diagrams for the graphical determination of the pH value of acid-base systems in dilute aqueous solution.
Antonio Togni
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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.
MARIJA LAZAREVIC +2 more
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IJCER (International Journal of Chemistry Education Research), 2022 Chemical equilibria, including acid-base equilibria, play a significant role in the learning of general chemistry. Acid-base reactions as well as acidity and basicity concepts and their relationship to titrations are an important part of any general ...
Issa I. Salame +2 more
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Acid-base equilibria of 2,4-diiodo-6-methylphenylcarbamoylmethyl iminodiacetic acid and its labeling with technetium-99m [PDF]
Journal of the Serbian Chemical Society, 2006 The acid-base equilibria of a novel hepatobiliary imaging agent, 2,4-diiodo-6-methylphenylcarbamoylmethyl iminodiacetic acid (DIIODIDA) were studied.
S. VLADIMIROV +4 more
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Species-Specific, pH-Independent, Standard Redox Potential of Selenocysteine and Selenocysteamine
Antioxidants, 2020 Microscopic redox equilibrium constants and standard redox potential values were determined to quantify selenolate-diselenide equilibria of biological significance.
Tamás Pálla +2 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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Protonation of maleic and fumaric acid in aqueous sulfuric acid solutions [PDF]
Journal of the Serbian Chemical Society, 2000 The protonations of maleic and fumaric acid in an acidic medium (aqueous solutions of sulfuric acid) were followed spectrophotometrically at room temperature. The acid-base equilibria were characterised qualitatively and quantitatively. The pKBH+
Jankovska Katica +2 more
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