Solubility measurements and thermodynamic modelling of organoaluminum supported by unsymmetrical β-diketimine ligand

Ni, Congjian; Ma, Xiaoli; Guo, Pingping; Pang, Ziyuan; Yang, Zhi

doi:10.1016/j.molliq.2022.120302

Cited by 5 publications

(1 citation statement)

References 28 publications

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“…In the absence of experimental data, the value of a 12 can usually be specified arbitrarily. In some literature reports, − the fit is better when a 12 is taken to be 0.3. Therefore, in this paper, we take 0.3.…”

Section: Thermodynamic Propertiesmentioning

confidence: 92%

Determination of Solubility and Thermodynamic Analysis of Iron(III) β-Diketonate Compounds in Pure Solvents

Yang,

Ma,

et al. 2024

J. Chem. Eng. Data

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In this work, the solubility of Fe(acac) 3 (acac = acetylacetone) in five organic solvents (n-propanol, diethyl ether, ethyl acetate, tetrahydrofuran, ethanol), Fe(acch) 3 (acch = 2-acetylcyclohexanoate) in five organic solvents (acetonitrile, diethyl ether, ethyl acetate, methyl acetate, ethanol) and Fe(ba) 3 (ba = benzoylacetone) in four organic solvents (acetonitrile, diethyl ether, ethyl acetate, methyl acetate) were determined from 268.15 to 298.15 K by static analysis. The measured results demonstrated that the solubility data increased with increasing temperature. Solubility for the complexes was related using five thermodynamic models. Among them, in terms of empirical models, the Apelblat model was broadly applicable and had an average ARD of less than 3%. The activity coefficient model (NRTL model) had a good fit effect with an average ARD of less than 1.5%. Furthermore, the molecular electrostatic potential (ESP) of iron(III) β-diketonate compounds reflected that O atoms readily formed hydrogen bonds. Hirshfeld surface analysis revealed that the largest contact rate was in the H•••H contact.

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