Search Results - "Dhaouadi, Zoubeida"
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Thermodynamic, reactivity and spectroscopic properties of curcumin: solvent effect
Published in Journal of the Iranian Chemical Society (01-04-2022)“…The M06/6-31+G(d) method has been used to study the reactivity of the two forms of curcumin (enol and keto). The energies needed for the three thermodynamic…”
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Structures of protonated methanol clusters and temperature effects
Published in The Journal of chemical physics (14-05-2013)“…The accurate evaluation of pKa's, or solvation energies of the proton in methanol at a given temperature is subject to the determination of the most favored…”
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Structures and relative stabilities of ammonia clusters at different temperatures: DFT vs. ab initio
Published in Physical chemistry chemical physics : PCCP (01-01-2015)“…A hydrogen bond network in ammonia clusters plays a key role in understanding the properties of species embedded in ammonia. This network is dictated by the…”
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Comparative antioxidant potency and solvent polarity effects on HAT mechanisms of tocopherols
Published in Computational and theoretical chemistry (15-05-2015)“…[Display omitted] •Three mechanisms for hydrogen atom transfer are proposed.•The antioxidant descriptors: BDFE, IP, PDFE, PA and ETFE are calculated.•The most…”
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Visible Photodissociation Spectra of the 1- and 2‑Methylnaphthalene Cations: Laser Spectroscopy and Theoretical Simulations
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (19-12-2013)“…The electronic absorption spectra of the two methyl derivatives of the naphthalene cation were measured using an argon tagging technique. In both cases, a band…”
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6
Revision of the Thermodynamics of the Proton in Gas Phase
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (20-11-2014)“…Proton transfer is ubiquitous in various physical/chemical processes, and the accurate determination of the thermodynamic parameters of the proton in the gas…”
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Quantum cluster equilibrium prediction of liquid ethanol
Published in Journal of molecular liquids (01-10-2023)“…Quantum cluster equilibrium theory (QCE) has been widely used to determine the properties of pure and binary mixture of liquids. The main limitation of the…”
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Structures, spectroscopy, binding and clustering energies of the hydrated copper dication clusters
Published in Computational and theoretical chemistry (01-06-2024)“…The hydration-free energy of the Cu2+ cation stands as a crucial parameter for comprehending its reactivity with various molecules. However, the existing…”
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Structures, binding energies, temperature effects, infrared spectroscopy of [Mg(NH3)n = 1−10]+ clusters from DFT and MP2 investigations
Published in Journal of computational chemistry (05-07-2019)“…The possible isomers of [Mg(NH3)n = 1 − 10]+ clusters have been investigated using both M06‐2X/6‐31++G(d,p) and MP2/6‐31++G(d,p) levels of theory. The isomeric…”
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10
Quantum cluster equilibrium theory applied to liquid ammonia
Published in Journal of computational chemistry (05-06-2024)“…Through this paper, the authors propose using the quantum cluster equilibrium (QCE) theory to reinvestigate ammonia clusters in the liquid phase. The ammonia…”
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11
Solvation Energies of the Proton in Methanol
Published in Journal of chemical theory and computation (12-02-2013)“…pK a’s, proton affinities, and proton dissociation free energies characterize numerous properties of drugs and the antioxidant activity of some chemical…”
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12
Beryllium ion coordination in Ammonia, methanol and water solvents
Published in Journal of molecular liquids (15-08-2022)“…•Be is a key component of materials indispensable in today’s industries and its solvation behavior is a topic of interest.•The study highlight the coordination…”
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Hydration of l-glycylvaline and l-glycylvalylglycine zwitterions: Structural and vibrational studies using DFT method
Published in Journal of molecular graphics & modelling (01-05-2019)“…Solvent effects on the structural and vibrational features of l-glycylvaline (L-GV) and l-glycylvalylglycine (L-GVG) in zwitterionic forms have been performed…”
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Structures, binding energies and temperature effects in MgNH3n=1-102+ clusters
Published in Theoretical chemistry accounts (2019)“…Structures and relative stabilities of Mg NH 3 n = 1 - 10 2 + clusters, obtained by using both M06-2X/6-31++G(d,p) and MP2/6-31++G(d,p) levels of theory, are…”
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Structures, binding energies and temperature effects in Mg NH 3 n = 1 - 10 2 + clusters
Published in Theoretical chemistry accounts (01-01-2019)“…Structures and relative stabilities of MgNH3n=1-102+ clusters, obtained by using both M06-2X/6-31++G(d,p) and MP2/6-31++G(d,p) levels of theory, are reported…”
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17
TDDFT prediction of UV–vis absorption and emission spectra of tocopherols in different media
Published in Journal of molecular modeling (01-06-2015)“…We use the TDDFT/PBE0/6-31+G* method to determine the electronic absorption and emission energies, in different media, of the four forms of tocopherol, which…”
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Geometrical and vibrational features of phosphate, phosphorothioate and phosphorodithioate linkages interacting with hydrated cations: A DFT study
Published in Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (01-09-2009)“…The effect of hexahydrated monovalent and divalent cations on the geometrical and vibrational features of dimethyl phosphate, dimethyl phosphorothioate and…”
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