Ionization constants of substituted benzoic acids in ethanol-water
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منابع مشابه
Auxin Activity of Substituted Benzoic Acids and Their Effect
Summinary. Six dichloro-, 3 trichloro-, 2 triiodo-, and 3 heterosubstituted benzoic acids (amiben, dinoben, dicamba), and N-1-naphthylphthalamic acid have been tested for effects on growth and on polar auxin transport. Growth activity with and without kinetin was measured by effects on fresh and dry weights of 30-day cultures of fresh tobacco pith. Transport inhibition was measured by following...
متن کاملRelationships between aqueous acidities and computed surface-electrostatic potentials and local ionization energies of substituted phenols and benzoic acids
Electrostatic potentials and average local ionization energies on the molecular surfaces of 19 phenols, 17 benzoic acids and their respective conjugate bases were computed at the HF/STO-5G(d)//B3LYP/6311G(d,p) level. Good correlations were found between pKas and the VS,max values of the neutral acids and the VS,min and IS;min of the conjugate bases for both sets of molecules. VS,max is the most...
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The addition of organic solvents to α-amino acids in aqueous solution could be an effective method in crystallization. We reviewed the available data on the solubility of α-amino acids in water, water-ethanol mixtures, and ethanol at 298.15 K and 0.1 MPa. The solubility of l-alanine, l-proline, l-arginine, l-cysteine, and l-lysine in water and ethanol mixtures and the solubility of l-alanine, l...
متن کاملThe effect of substituted benzoic acids on adaptive enzyme formation in a Mycobacterium.
Certain Mycobacteriu form adaptive enzymes for the oxidation of benzoic acid (1). The oxidation proceeds through catechol and protocatechuic acid (2) and is thus similar to that in PseudomonasJEuorescens (3). Neither cyclohexanecarboxylic acid nor any substituted benzoic acid is oxidized by these Mycobacteria, but certain of these compounds can induce the organism to form adaptive enzymes for b...
متن کاملAcidity of ortho-substituted benzoic acids: an infrared and theoretical study of the intramolecular hydrogen bonds.
The structures of ortho-substituted benzoic acids with substituents bearing hydrogen atoms (OH, NH2, COOH and SO2NH2) were investigated by means of IR spectroscopy and of density functional theory at the B3LYP/6-311 + G(d,p) level. All possible conformations, hydrogen bonds, tautomeric forms and zwitterions were taken into consideration and particular attention was given to intramolecular H-bon...
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ژورنال
عنوان ژورنال: Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry
سال: 1967
ISSN: 0022-4332
DOI: 10.6028/jres.071a.043