Novel 1,4-naphthoquinone N-aroylthioureas: Syntheses, crystal structure, anion recognition properties, DFT studies and determination of acid dissociation constants
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Molecular Liquids"
DOI: 10.1016/j.molliq.2018.08.054
Abstract: Abstract In this paper, five novel 1,4-naphthoquinone N-aroylthiourea derivatives were synthesized, by the reaction of 2,3-diaminonaphthalene-1,4-dione and aroylisothiocyanates, in excellent yield (88–96%) and characterized by using FT-IR, 1H/13C NMR and HRMS. In addition, the molecular… read more here.
Keywords: novel naphthoquinone; acid dissociation; structure; dissociation constants ... See more keywords
Acid Dissociation Constant (pKa) of Common Monoethylene Glycol (MEG) Regeneration Organic Acids and Methyldiethanolamine at Varying MEG Concentration, Temperature, and Ionic Strength
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Chemical & Engineering Data"
DOI: 10.1021/acs.jced.8b00221
Abstract: The acid dissociation constants (pKa) of four organic acids (formic, acetic, propanoic, and butanoic) commonly found in monoethylene glycol (MEG) regeneration systems and methyldiethanolamine (MDEA) were measured via potentiometric titration. Dissociation constants were measured within… read more here.
Keywords: temperature; dissociation; acid dissociation; meg ... See more keywords
Potentiometric Determination of Acid Dissociation Constants (pK a) for an Anticancer Pyrrole-Imidazole Polyamide.
Sign Up to like & getrecommendations! Published in 2022 at "ACS medicinal chemistry letters"
DOI: 10.1021/acsmedchemlett.2c00348
Abstract: To optimize the pharmacological properties of an anticancer pyrrole-imidazole (Py-Im) polyamide (PIP-1), we characterized the acid dissociation constants of PIP-1, three other structurally related hairpin-shaped polyamides, and a cyclic polyamide bearing the same core sequence… read more here.
Keywords: dissociation constants; pyrrole imidazole; dissociation; acid dissociation ... See more keywords
Determination of acid dissociation constants of Alizarin Red S, Methyl Orange, Bromothymol Blue and Bromophenol Blue using a digital camera
Sign Up to like & getrecommendations! Published in 2020 at "RSC Advances"
DOI: 10.1039/c9ra10568a
Abstract: Acid dissociation constants (pKa) are important parameters for the characterization of organic and inorganic compounds. They play a crucial role in different physical, chemical, and biological studies. Herein, we introduce a new approach for the… read more here.
Keywords: blue; dissociation; acid dissociation; alizarin red ... See more keywords
Simultaneous Determination of the Acid Dissociation Constants of Phenolics by Multivariate Analysis of pH and Ultraviolet-Visible Spectrophotometric Measurements
Sign Up to like & getrecommendations! Published in 2021 at "Analytical Letters"
DOI: 10.1080/00032719.2021.1880424
Abstract: Abstract In the development of new commercial products in the pharmaceutical and food industries, acid dissociation constant (Ka) values of active and inactive ingredients are important factors for the estimation of the biological activity. In… read more here.
Keywords: simultaneous determination; dissociation; acid dissociation; mcr als ... See more keywords
Determination of the microscopic acid dissociation constant of piperacillin and identification of dissociated molecular forms
Sign Up to like & getrecommendations! Published in 2023 at "Frontiers in Chemistry"
DOI: 10.3389/fchem.2023.1177128
Abstract: For amphoteric ß-lactam antibiotics, the acid dissociation constant (pK a) is a fundamental parameter to characterize physicochemical and biochemical properties of antibiotics and to predict persistence and removal of drugs. pK a of piperacillin (PIP)… read more here.
Keywords: acid dissociation; dissociation; determination; lactam antibiotics ... See more keywords