Search Results - "Gal, Jean‐François"

Enhanced Basicity of Push–Pull Nitrogen Bases in the Gas Phase by Raczyńska, Ewa D, Gal, Jean-François, Maria, Pierre-Charles

“…Nitrogen bases containing one or more pushing amino-group(s) directly linked to a pulling cyano, imino, or phosphoimino group, as well as those in which the…”
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Dinuclear Copper Intermediates in Copper(I)-Catalyzed Azide-Alkyne Cycloaddition Directly Observed by Electrospray Ionization Mass Spectrometry by Iacobucci, Claudio, Reale, Samantha, Gal, Jean-François, De Angelis, Francesco

“…The mechanism of the CuAAC reaction has been investigated by electrospray ionization mass spectrometry (ESI‐MS) using a combination of the neutral reactant…”
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Noble gas cations as Lewis acids: Adduct formation with Lewis bases with high ionization energies by Valadbeigi, Younes, Gal, Jean-François

“…[Display omitted] Interactions of three simple Lewis bases (LB) of varying strength: H2O, NH3, and CH2O with Noble gas (Ng) cations He+, Ne+, Ar+, Kr+, Xe+…”
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Metal Triflates as Catalysts in Organic Synthesis: Determination of Their Lewis Acidity by Mass Spectrometry by Massi, Lionel, Gal, Jean‐François, Duñach, Elisabet

“…Metal triflates have shown a large variety of possibilities as catalysts in organic reactions. Some selected examples of their catalytic activity, in…”
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Organometallic superacids and hyperacids: Acidity enhancement by internal bonding with a strong electron-pair acceptor group BX2 by Valadbeigi, Younes, Gal, Jean-François

“…[Display omitted] •New organometallic superacids of sulfonic acid derivatives were designed.•Internal bonding with an electron-pair acceptor group BX2 enhanced…”
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Directionality of Cation/Molecule Bonding in Lewis Bases Containing the Carbonyl Group by Valadbeigi, Younes, Gal, Jean-François

“…Relationship between the CO–X+ (X = H, Li, Na, K, Al, Cu) angle and covalent characteristic of the X+–M (M = CH2O, CH3CHO, acetone, imidazol-2-one (C2H2N2O),…”
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Energetics and Structures of Adducts of JohnPhos(Au+), PPh3(Au+), and IPr(Au+) with Organic Substrates: A Mass Spectrometry and DFT Study by Iacobucci, Claudio, Massi, Lionel, Duñach, Elisabet, Burk, Peeter, Gal, Jean-François

“…We report a mass spectrometry study of the interaction between three representative Au­(I) catalysts containing the ligands L = JohnPhos…”
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Insight into the Mechanisms of the Multicomponent Ugi and Ugi-Smiles Reactions by ESI-MS(/MS) by Iacobucci, Claudio, Reale, Samantha, Gal, Jean-François, De Angelis, Francesco

“…The mechanisms of the Ugi and Ugi–Smiles reactions were investigated by using finely selected reaction conditions that allowed all of the intermediates to be…”
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On the Lewis Basicity of Phosphoramides: A Critical Examination of Their Donor Number through Comparison of Enthalpies of Adduct Formation with SbCl5 and BF3 by Gal, Jean‐François, Maria, Pierre‐Charles, Yáñez, Manuel, Mó, Otilia

“…The Lewis basicity of a series of phosphoryl compounds was examined using DFT and ab initio methods, including solvation effects. The enthalpies of adduct…”
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Comment on the article “Cation–π interaction of Ag+ with [6]helicene: An experimental and theoretical study” by E. Makrlík et al. [Chem. Phys. Lett. 633 (2015) 105–108] by Gal, Jean-François

“…[Display omitted] •An error was detected in the article cited in the title.•The bond dissociation energy of the Ag+/[6]helicene adduct was deduced from the…”
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Enthalpies of Adduct Formation between Boron Trifluoride and Selected Organic Bases in Solution: Toward an Accurate Theoretical Entry to Lewis Basicity by Gal, Jean-François, Maria, Pierre-Charles, Yáñez, Manuel, Mó, Otilia

“…The Lewis basicity of selected organic bases, modeled by the enthalpies of adduct formation between gaseous BF3 and bases in dichloromethane (DCM) solution, is…”
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Assessment of the nature of interactions of cations with cycloheptatriene derivatives using change in the aromaticity: Comparison with electron density and NBO results by Valadbeigi, Younes, Gal, Jean-François

“…Interactions of cycloheptatriene derivatives, C 7 H 6 X, (X = NH, PH, AsH, O, S, Se) with the cations H + , CH 3 + , Cu + , Al + , Li + , Na + , and K + are…”
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An Excursion into the History of Chromatography: Mikhail Tswett, From Asti, Italy, to Tartu, Estonia by Gal, Jean-François

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Effect of the Number of Methyl Groups on the Cation Affinity of Oxygen, Nitrogen, and Phosphorus Sites of Lewis Bases by Valadbeigi, Younes, Gal, Jean-François

“…The effect of number of CH3 groups (n) on the cation (H+, Li+, Na+, Al+, CH3 +) affinity, polarizability, and dipole moment of 14 simple molecules was…”
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Quality Control of a Functionalized Polymer Catalyst by Energy Dispersive X‑ray Spectrometry (EDX or EDS) by Hector, Daphné, Olivero, Sandra, Orange, François, Duñach, Elisabet, Gal, Jean-François

“…Energy dispersive X-ray spectrometry (EDX or EDS) is a technique often implemented on scanning electron microscopes and a regularly used method for qualitative…”
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Bond Strength and Reactivity Scales for Lewis Superacid Adducts: A Comparative Study with In(OTf)3 and Al(OTf)3 by Compain, Guillaume, Sikk, Lauri, Massi, Lionel, Gal, Jean‐François, Duñach, Elisabet

“…Metal triflates, often called Lewis superacids, are potent catalysts for organic synthesis. However, the reactivity of a given Lewis superacid toward a given…”
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An Overview of Lewis Basicity and Affinity Scales by Laurence, Christian, Graton, Jérôme, Gal, Jean-François

“…The impossibility of establishing a universal scale of Lewis basicity does not prevent the determination of the quantitative behavior of Lewis bases, thanks to…”
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Exceptionally High Proton and Lithium Cation Gas-Phase Basicity of the Anti-Diabetic Drug Metformin by Raczyńska, Ewa D, Gal, Jean-François, Maria, Pierre-Charles, Michalec, Piotr, Zalewski, Marcin

“…Substituted biguanides are known for their biological effect, and a few of them are used as drugs, the most prominent example being metformin…”
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The New Definitions of the Mole and Kilogram: How and Why These SI Units Took Their New Status by Gal, Jean-Francois

“…Important changes were recently made to the International System of Units. The readers involved in chemistry and physics, either teachers or advanced students,…”
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Comment on the Article "Gutmann Donor and Acceptor Numbers for Ionic Liquids" by M. Schmeisser, P. Illner, R. Puchta, A. Zahl, and R. van Eldik (Chem. Eur. J. 2012, 18, 10969-10982) by Gal, Jean-François, Laurence, Christian

“…The concept of donor number (DN), based on calorimetric measurements of adduct formation between Lewis bases and a reference Lewis acid, proved to be fruitful…”
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