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Bader F, Riedel S, Beckers H, Müller C, Tremblay JC, Paulus B. The Peculiar Interaction of Trifluoride Anions with Cryogenic Rare Gas Matrices. J Phys Chem A 2021; 125:6221-6227. [PMID: 34251823 DOI: 10.1021/acs.jpca.1c04711] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this contribution, we present theoretical modeling of the interaction between rare gas matrices and a trifluoride guest anion, as well as its quantitative effect on measured vibrational spectra. Using a combination of coupled-cluster electronic structure calculations and a many-body potential expansion coupled with permutation invariant polynomial fitting and anharmonic vibrational spectrum simulations, we shed light on the origin of the trifluoride matrix effects observed experimentally. The theoretical spectra are found to reproduce accurately the measured data while providing deeper insights into the effects of the guest-host interaction. The investigations reveal that neon can only stabilize trifluoride in hexagonal cavities formed by double vacancies, while argon can host the anion in a variety of cavities ranging from zero to two defects in the matrix. The origin of this structural variability can be traced back to the disparate strengths of the host-host interactions in neon and argon. The present work demonstrates the importance of theoretical modeling to complement matrix isolation experiments, which alone do not provide direct information about the structure of the matrices or about the physical origin of their interaction and of their spectroscopic signature.
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Affiliation(s)
- Frederik Bader
- Institut für Chemie und Biochemie, Freie Universität Berlin, D-14195 Berlin, Germany
| | - Sebastian Riedel
- Institut für Chemie und Biochemie, Freie Universität Berlin, D-14195 Berlin, Germany
| | - Helmut Beckers
- Institut für Chemie und Biochemie, Freie Universität Berlin, D-14195 Berlin, Germany
| | - Carsten Müller
- Institut für Chemie und Biochemie, Freie Universität Berlin, D-14195 Berlin, Germany
| | - Jean Christophe Tremblay
- Laboratoire de Physique et Chimie Théoriques, CNRS-Université de Lorraine, UMR 7019, ICPM, 1Bd Arago, 57070 Metz, France
| | - Beate Paulus
- Institut für Chemie und Biochemie, Freie Universität Berlin, D-14195 Berlin, Germany
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Tsuge M, Räsänen M, Khriachtchev L. Thermal decomposition of the HXeCl···H2O complex in solid xenon: Experimental characterization of the two-body decomposition channel. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2019.136987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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An ab initio study on noble gas inserted halogenated acetylene: HNgCCX (Ng = Kr and Xe; X = halogen). Sci Rep 2017; 7:10278. [PMID: 28860526 PMCID: PMC5579194 DOI: 10.1038/s41598-017-10786-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 08/14/2017] [Indexed: 11/09/2022] Open
Abstract
Although HNgCCX (Ng = Kr and Xe; X = F and Cl) have been identified in cryogenic matrices, similar Br and I analogues have not been prepared so far. In this paper, the nature of HNgCCX (Ng = Kr and Xe; X = F, Cl, Br and I) have been investigated by ab initio methods. The main characteristic absorption peak of HNgCCX is the vH-Ng, which decreases as X varies from F to I. Moreover, the H-Xe bond is stronger than the H-Kr bond. The vC≡C and vC-X exhibit red- and blue-shift characters, respectively, especially the C-X bond is abnormal blue-shift halogen bond. AIM results show that the H-Ng bond is essentially covalent bond and the covalent character of H-Xe bond is underestimated, and the trend of the covalent character is C-Cl > C-Br > C-F > C-I. Although HNgCCX is instable thermodynamically with respect to Ng + HCCX, it is kinetically stable with respect to the two-/three-body channels due to the relatively larger energy barriers. The three-body channels of HNgCCX is the main decomposition channel, and the kinetically stability of HXeCCX is more than its Kr analogues. This study is helpful for the preparation of new HNgCCX in cryogenic matrices.
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Kovács A, Rode JE. Modelling the matrix shift on the vibrational frequency of ThO by DFT-D3 calculations. J Chem Phys 2017; 146:124301. [PMID: 28388137 DOI: 10.1063/1.4978064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Benchmark calculations with a goal to find dispersion-corrected DFT-D3 methods suitable for a reliable estimation of matrix shifts on the vibrational frequency were carried out on the ThO molecule in three rare gas (Rg = Ne, Ar, and Kr) matrices. The matrices were modelled by the explicit approach, in which a single and a double shell of Rg atoms around ThO was considered. The selection of exchange-correlation functionals was based on test calculations on triatomic ThO⋯Rg models. The B3LYP, PBE0, CAM-B3LYP, and LC-ωPBE functionals were found to be the best suited for the estimation of matrix shifts. The single shell of Rg's around ThO accounted for a major part of the shifts; the addition of a second Rg shell resulted only in a minor improvement. Continuum solvation models considerably overestimated the effect of Rg matrices both when the whole matrix was treated by the model and when the first shell was treated explicitly and the rest with a continuum solvation model.
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Affiliation(s)
- Attila Kovács
- European Commission, Joint Research Centre, P.O. Box 2340, 76125 Karlsruhe, Germany
| | - Joanna E Rode
- Institute of Nuclear Chemistry and Technology, 16 Dorodna-Street, 03-195 Warsaw, Poland
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Cohen A, Gerber RB. A Noble-Gas Hydride in a Nitrogen Medium: Structure, Spectroscopy, and Intermolecular Vibrations of HXeBr@(N2)22. J Phys Chem A 2016; 120:3372-9. [PMID: 27018537 DOI: 10.1021/acs.jpca.6b01476] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Noble-gas hydrides have been extensively studied in noble gas matrices. However, little is known on their stability and properties in molecular hosts. Here, HXeBr in the N2 environment is modeled at the B3LYP-D level of theory in a complete single shell of 22 N2 molecules. The system is compared to similar models of HXeBr in CO2 and Xe clusters. The optimized structure of (HXeBr)@(N2)22 is of low symmetry and is highly anisotropic. None of the N2 molecules are freely rotating, and the host molecules are not symmetrically positioned with respect to the HXeBr axis. The axes of the N2 molecules are nonuniformly distributed. The computed anharmonic H-Xe stretching frequency of HXeBr in the N2 cluster is in good accord with the experimental value. The soft-mode frequencies of the cluster including both intermolecular vibrations and librations, have a broad distribution that ranges from 8.7 to 107 cm(-1). It is expected that these findings and specifically, the single-shell model, may shed light also on the local structure and vibrations of other impurities in a molecular media.
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Affiliation(s)
- Arik Cohen
- Institute of Chemistry and The Fritz Haber Center for Molecular Dynamics, The Hebrew University , Jerusalem 91904, Israel
| | - Robert Benny Gerber
- Institute of Chemistry and The Fritz Haber Center for Molecular Dynamics, The Hebrew University , Jerusalem 91904, Israel.,Department of Chemistry, University of Helsinki , P.O. Box 55, Helsinki, FIN-00014, Finland.,Department of Chemistry, University of California , Irvine, California 92697, United States
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Zhu C, Tsuge M, Räsänen M, Khriachtchev L. Experimental and theoretical study of the HXeI⋯HCl and HXeI⋯HCCH complexes. J Chem Phys 2015; 142:144306. [DOI: 10.1063/1.4917167] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Cheng Zhu
- Department of Chemistry, University of Helsinki, P.O. Box 55, FI-00014 Helsinki, Finland
| | - Masashi Tsuge
- Department of Chemistry, University of Helsinki, P.O. Box 55, FI-00014 Helsinki, Finland
| | - Markku Räsänen
- Department of Chemistry, University of Helsinki, P.O. Box 55, FI-00014 Helsinki, Finland
| | - Leonid Khriachtchev
- Department of Chemistry, University of Helsinki, P.O. Box 55, FI-00014 Helsinki, Finland
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Niimi K, Taketsugu T, Nakayama A. Matrix site effects on vibrational frequencies of HXeCCH, HXeBr, and HXeI: a hybrid quantum-classical simulation. Phys Chem Chem Phys 2015; 17:7872-80. [PMID: 25716235 DOI: 10.1039/c5cp00568j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The matrix shifts of the H-Xe stretching frequency of noble-gas hydrides, HXeCCH, HXeBr, and HXeI in various noble-gas matrices (in Ne, Ar, Kr, and Xe matrices) are investigated via the hybrid quantum-classical simulations. The order of the H-Xe stretching frequencies is found to be ν(gas) < ν(Ne) < ν(Xe) < ν(Kr) < ν(Ar) for HXeCCH and HXeBr, while it is ν(gas) < ν(Ne) < ν(Xe) < ν(Ar) < ν(Kr) for HXeI. This order is anomalous with respect to the matrix dielectric constants, and the calculated results reproduce the experimentally observed shifts quite successfully. We also find that the matrix shifts from the gas-phase values are Δν(HXeCCH) ≈ Δν(HXeCl) < Δν(HXeBr) < Δν(HXeI) in the same noble-gas matrix environments, which implies that the weakly bound molecules exhibit large matrix shifts. The local trapping site is analyzed in detail, and it is shown that a realistic modeling of the surrounding matrix environments is essential to describe the unusual matrix shifts accurately.
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Affiliation(s)
- Keisuke Niimi
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo 060-0810, Japan
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Zhu C, Niimi K, Taketsugu T, Tsuge M, Nakayama A, Khriachtchev L. HXeI and HXeH in Ar, Kr, and Xe matrices: Experiment and simulation. J Chem Phys 2015; 142:054305. [DOI: 10.1063/1.4906875] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Willmann K, Vent-Schmidt T, Räsänen M, Riedel S, Khriachtchev L. Matrix-isolation and computational study of the HKrCCH⋯HCCH complex. RSC Adv 2015. [DOI: 10.1039/c5ra01880c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The HKrCCH⋯HCCH complex is identified in a Kr matrix with the H–Kr stretching bands at 1316.5 and 1305 cm−1. The assignment is fully supported by extensive quantum chemical calculations.
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Affiliation(s)
- Knut Willmann
- Institut für Anorganische und Analytische Chemie
- Albert-Ludwigs-Universität Freiburg
- 79104 Freiburg
- Germany
| | - Thomas Vent-Schmidt
- Institut für Anorganische und Analytische Chemie
- Albert-Ludwigs-Universität Freiburg
- 79104 Freiburg
- Germany
| | - Markku Räsänen
- Department of Chemistry
- University of Helsinki
- FI-00014 Helsinki
- Finland
| | - Sebastian Riedel
- Institut für Anorganische und Analytische Chemie
- Albert-Ludwigs-Universität Freiburg
- 79104 Freiburg
- Germany
- Institut für Chemie und Biochemie
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Kalinowski J, Gerber RB, Räsänen M, Lignell A, Khriachtchev L. Matrix effect on vibrational frequencies: Experiments and simulations for HCl and HNgCl (Ng = Kr and Xe). J Chem Phys 2014; 140:094303. [DOI: 10.1063/1.4866913] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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