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Groslambert L, Cornaton Y, Ditte M, Aubert E, Pale P, Tkatchenko A, Djukic JP, Mamane V. Affinity of Telluronium Chalcogen Bond Donors for Lewis Bases in Solution: A Critical Experimental-Theoretical Joint Study. Chemistry 2024; 30:e202302933. [PMID: 37970753 DOI: 10.1002/chem.202302933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 11/15/2023] [Accepted: 11/15/2023] [Indexed: 11/17/2023]
Abstract
Telluronium salts [Ar2 MeTe]X were synthesized, and their Lewis acidic properties towards a number of Lewis bases were addressed in solution by physical and theoretical means. Structural X-ray diffraction analysis of 21 different salts revealed the electrophilicity of the Te centers in their interactions with anions. Telluroniums' propensity to form Lewis pairs was investigated with OPPh3 . Diffusion-ordered NMR spectroscopy suggested that telluroniums can bind up to three OPPh3 molecules. Isotherm titration calorimetry showed that the related heats of association in 1,2-dichloroethane depend on the electronic properties of the substituents of the aryl moiety and on the nature of the counterion. The enthalpies of first association of OPPh3 span -0.5 to -5 kcal mol-1 . Study of the affinity of telluroniums for OPPh3 by state-of-the-art DFT and ab-initio methods revealed the dominant Coulombic and dispersion interactions as well as an entropic effect favoring association in solution. Intermolecular orbital interactions between [Ar2 MeTe]+ cations and OPPh3 are deemed insufficient on their own to ensure the cohesion of [Ar2 MeTe ⋅ Bn ]+ complexes in solution (B=Lewis base). Comparison of Grimme's and Tkatchenko's DFT-D4/MBD-vdW thermodynamics of formation of higher [Ar2 MeTe ⋅ Bn ]+ complexes revealed significant molecular size-dependent divergence of the two methodologies, with MBD yielding better agreement with experiment.
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Affiliation(s)
- Loïc Groslambert
- LASYROC, UMR 7177 CNRS, University of Strasbourg, 1 Rue Blaise Pascal, F-67000, Strasbourg, France
| | - Yann Cornaton
- LCSOM, UMR 7177 CNRS, Université de Strasbourg, 4 rue Blaise Pascal, F-67000, Strasbourg, France
| | - Matej Ditte
- Department of Physics and Materials Science, University of Luxembourg, L-1511, Luxembourg City, Luxembourg
| | | | - Patrick Pale
- LASYROC, UMR 7177 CNRS, University of Strasbourg, 1 Rue Blaise Pascal, F-67000, Strasbourg, France
| | - Alexandre Tkatchenko
- Department of Physics and Materials Science, University of Luxembourg, L-1511, Luxembourg City, Luxembourg
| | - Jean-Pierre Djukic
- LCSOM, UMR 7177 CNRS, Université de Strasbourg, 4 rue Blaise Pascal, F-67000, Strasbourg, France
| | - Victor Mamane
- LASYROC, UMR 7177 CNRS, University of Strasbourg, 1 Rue Blaise Pascal, F-67000, Strasbourg, France
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Milovanović MR, Boucher M, Cornaton Y, Zarić SD, Pfeffer M, Djukic J. The Thermochemistry of Alkyne Insertion into a Palladacycle Outlines the Solvation Conundrum in DFT. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100750] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Milan R. Milovanović
- Laboratoire de Chimie et Systémique Organométalliques UMR 7177 CNRS University of Strasbourg 4 rue Blaise Pascal 67000 Strasbourg Cedex France
- Innovation center of the Faculty of Chemistry Studenski Trg 12–16 SRB-11000 Belgrade Serbia
| | - Mélanie Boucher
- Laboratoire de Chimie et Systémique Organométalliques UMR 7177 CNRS University of Strasbourg 4 rue Blaise Pascal 67000 Strasbourg Cedex France
| | - Yann Cornaton
- Laboratoire de Chimie et Systémique Organométalliques UMR 7177 CNRS University of Strasbourg 4 rue Blaise Pascal 67000 Strasbourg Cedex France
| | - Snežana D. Zarić
- Faculty of Chemistry University of Belgrade Studenski Trg 12–16 SRB-11000 Belgrade Serbia
| | - Michel Pfeffer
- Laboratoire de Chimie et Systémique Organométalliques UMR 7177 CNRS University of Strasbourg 4 rue Blaise Pascal 67000 Strasbourg Cedex France
| | - Jean‐Pierre Djukic
- Laboratoire de Chimie et Systémique Organométalliques UMR 7177 CNRS University of Strasbourg 4 rue Blaise Pascal 67000 Strasbourg Cedex France
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