Measurements, Thermodynamic Modeling, and a Hydrogen Bonding Study on the Solubilities of Metoprolol Succinate in Organic Solvents

The solubilities of metoprolol succinate (a cardioselective β1 adrenergic receptor) in methanol, ethanol, n-propanol, isopropanol, n-butanol, ethyl acetate, and acetone were measured at temperatures ranging from (278.2 to 318.2) K using a solid–liquid equilibrium method. The solub...

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Main Authors: Jian Shen, Xianrui Liang, Hao Lei
Format: Article
Language:English
Published: MDPI AG 2018-09-01
Series:Molecules
Subjects:
Online Access:http://www.mdpi.com/1420-3049/23/10/2469
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author Jian Shen
Xianrui Liang
Hao Lei
author_facet Jian Shen
Xianrui Liang
Hao Lei
author_sort Jian Shen
collection DOAJ
description The solubilities of metoprolol succinate (a cardioselective β1 adrenergic receptor) in methanol, ethanol, n-propanol, isopropanol, n-butanol, ethyl acetate, and acetone were measured at temperatures ranging from (278.2 to 318.2) K using a solid–liquid equilibrium method. The solubility of metoprolol succinate increases with increasing temperature. At a fixed temperature, the solubility decreases in the order methanol > ethanol > n-butanol > n-propanol > isopropanol > acetone > ethyl acetate. The enthalpy of fusion and the melting point of metoprolol succinate were determined by differential scanning calorimetry. The thermodynamic properties of the dissolution process, determined by a van’t Hoff analysis, have been obtained and are discussed. The modified Apelblat equation, Wilson model, and non-random two-liquid (NRTL) model were employed to correlate the solubilities of metoprolol succinate in different solvents. Finally, a quantitative structure–property relationship (QSPR) study of physical properties of solvents and density functional theory simulations of hydrogen-bonding structure were carried out to give the explanation for the sequence of solubility in alcohols. The density functional theory (DFT) calculations well illustrated that the solubility of metoprolol succinate in various alcohols can be mainly attributed to the intra- and intermolecular hydrogen bonds in metoprolol succinate-solvent complexes.
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spelling doaj.art-c9374a25acaa40279bf1e2df5f0baffb2022-12-22T02:20:34ZengMDPI AGMolecules1420-30492018-09-012310246910.3390/molecules23102469molecules23102469Measurements, Thermodynamic Modeling, and a Hydrogen Bonding Study on the Solubilities of Metoprolol Succinate in Organic SolventsJian Shen0Xianrui Liang1Hao Lei2School of Materials and Chemical Engineering, Ningbo University of Technology, Ningbo 315016, ChinaCollege of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, ChinaSchool of Materials and Chemical Engineering, Ningbo University of Technology, Ningbo 315016, ChinaThe solubilities of metoprolol succinate (a cardioselective β1 adrenergic receptor) in methanol, ethanol, n-propanol, isopropanol, n-butanol, ethyl acetate, and acetone were measured at temperatures ranging from (278.2 to 318.2) K using a solid–liquid equilibrium method. The solubility of metoprolol succinate increases with increasing temperature. At a fixed temperature, the solubility decreases in the order methanol > ethanol > n-butanol > n-propanol > isopropanol > acetone > ethyl acetate. The enthalpy of fusion and the melting point of metoprolol succinate were determined by differential scanning calorimetry. The thermodynamic properties of the dissolution process, determined by a van’t Hoff analysis, have been obtained and are discussed. The modified Apelblat equation, Wilson model, and non-random two-liquid (NRTL) model were employed to correlate the solubilities of metoprolol succinate in different solvents. Finally, a quantitative structure–property relationship (QSPR) study of physical properties of solvents and density functional theory simulations of hydrogen-bonding structure were carried out to give the explanation for the sequence of solubility in alcohols. The density functional theory (DFT) calculations well illustrated that the solubility of metoprolol succinate in various alcohols can be mainly attributed to the intra- and intermolecular hydrogen bonds in metoprolol succinate-solvent complexes.http://www.mdpi.com/1420-3049/23/10/2469metoprolol succinatesolubilitydissolution enthalpyhydrogen bondingthermodynamic model
spellingShingle Jian Shen
Xianrui Liang
Hao Lei
Measurements, Thermodynamic Modeling, and a Hydrogen Bonding Study on the Solubilities of Metoprolol Succinate in Organic Solvents
Molecules
metoprolol succinate
solubility
dissolution enthalpy
hydrogen bonding
thermodynamic model
title Measurements, Thermodynamic Modeling, and a Hydrogen Bonding Study on the Solubilities of Metoprolol Succinate in Organic Solvents
title_full Measurements, Thermodynamic Modeling, and a Hydrogen Bonding Study on the Solubilities of Metoprolol Succinate in Organic Solvents
title_fullStr Measurements, Thermodynamic Modeling, and a Hydrogen Bonding Study on the Solubilities of Metoprolol Succinate in Organic Solvents
title_full_unstemmed Measurements, Thermodynamic Modeling, and a Hydrogen Bonding Study on the Solubilities of Metoprolol Succinate in Organic Solvents
title_short Measurements, Thermodynamic Modeling, and a Hydrogen Bonding Study on the Solubilities of Metoprolol Succinate in Organic Solvents
title_sort measurements thermodynamic modeling and a hydrogen bonding study on the solubilities of metoprolol succinate in organic solvents
topic metoprolol succinate
solubility
dissolution enthalpy
hydrogen bonding
thermodynamic model
url http://www.mdpi.com/1420-3049/23/10/2469
work_keys_str_mv AT jianshen measurementsthermodynamicmodelingandahydrogenbondingstudyonthesolubilitiesofmetoprololsuccinateinorganicsolvents
AT xianruiliang measurementsthermodynamicmodelingandahydrogenbondingstudyonthesolubilitiesofmetoprololsuccinateinorganicsolvents
AT haolei measurementsthermodynamicmodelingandahydrogenbondingstudyonthesolubilitiesofmetoprololsuccinateinorganicsolvents