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Sekhar P, Ghosh A, Ghanty TK. Noble Gas Inserted Protonated Silicon Monoxide Cations: HNgOSi+ (Ng = He, Ne, Ar, Kr, and Xe). J Phys Chem A 2015; 119:11601-13. [DOI: 10.1021/acs.jpca.5b09018] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pooja Sekhar
- Theoretical
Chemistry Section, Chemistry Group, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Ayan Ghosh
- Laser
and Plasma Technology Division, Beam Technology Development Group, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Tapan K. Ghanty
- Theoretical
Chemistry Section, Chemistry Group, Bhabha Atomic Research Centre, Mumbai 400 085, India
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Gao K, Sheng L. Theoretical investigation of HNgNH3(+) ions (Ng = He, Ne, Ar, Kr, and Xe). J Chem Phys 2015; 142:144301. [PMID: 25877572 DOI: 10.1063/1.4916648] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The equilibrium geometries, harmonic frequencies, and dissociation energies of HNgNH3(+) ions (Ng = He, Ne, Ar, Kr, and Xe) were investigated using the following method: Becke-3-parameter-Lee-Yang-Parr (B3LYP), Boese-Matrin for Kinetics (BMK), second-order Møller-Plesset perturbation theory (MP2), and coupled-cluster with single and double excitations as well as perturbative inclusion of triples (CCSD(T)). The results indicate that HHeNH3(+), HArNH3(+), HKrNH3(+), and HXeNH3(+) ions are metastable species that are protected from decomposition by high energy barriers, whereas the HNeNH3(+) ion is unstable because of its relatively small energy barrier for decomposition. The bonding nature of noble-gas atoms in HNgNH3(+) was also analyzed using the atoms in molecules approach, natural energy decomposition analysis, and natural bond orbital analysis.
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Affiliation(s)
- Kunqi Gao
- Department of Chemistry, Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin 150080, People's Republic of China
| | - Li Sheng
- Department of Chemistry, Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin 150080, People's Republic of China
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Borocci S, Cecchi P, Giordani M, Grandinetti F. Complexes of the noble gases with H3O+: a theoretical investigation on Ng(H3O+) (Ng = He-Xe). EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2015; 21:171-181. [PMID: 26307697 DOI: 10.1255/ejms.1354] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The geometries, harmonic vibrational frequencies, and binding energies (Bes) of the Ng(H(3)O(+)) complexes (Ng = He-Xe) were investigated at the coupled cluster level of theory, and their bonding situation was assayed by various methods of bonding analysis. The effects of Ng on H(3)O(+) progressively increase from He to Xe, and only He can be regarded as an essentially "innocent" ligand. The binding energies also increase in the same periodic order, and are by far dominated by the "noncovalent" ion-induced dipole interaction arising from the H(3)O(+)-induced polarization of Ng. For Ne, Ar, Kr, and Xe, this term has a larger contribution from the p orbital lying on the bond axis, and two smaller contributions from the p orbitals perpendicular to the bond axis. For the heaviest Ar(H(3)O(+)), Kr(H(3)O(+)), and Xe(H(3)O(+)), BE also has a "covalent" component, which is ascribed to the relatively-appreciable charge transfer from Ng to H(3)O(+).
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Affiliation(s)
- Stefano Borocci
- Dipartimento per la Innovazione nei sistemi Biologici, Agroalimentari e Forestali (DIBAF), Università della Tuscia, L.go dell'Università, s.n.c., 01100 Viterbo, Italy. Istituto per le Metodologie Chimiche del CNR, Via Salaria, Km 29.500, 00015, Monterotondo, RM, Italy.
| | - Patrizio Cecchi
- Dipartimento per la Innovazione nei sistemi Biologici, Agroalimentari e Forestali (DIBAF), Università della Tuscia, L.go dell'Università, s.n.c., 01100 Viterbo, Italy.
| | - Maria Giordani
- Dipartimento per la Innovazione nei sistemi Biologici, Agroalimentari e Forestali (DIBAF), Università della Tuscia, L.go dell'Università, s.n.c., 01100 Viterbo, Italy. Istituto per le Metodologie Chimiche del CNR, Via Salaria, Km 29.500, 00015, Monterotondo, RM, Italy.
| | - Felice Grandinetti
- Dipartimento per la Innovazione nei sistemi Biologici, Agroalimentari e Forestali (DIBAF), Università della Tuscia, L.go dell'Università, s.n.c., 01100 Viterbo, Italy. Istituto per le Metodologie Chimiche del CNR, Via Salaria, Km 29.500, 00015, Monterotondo, RM, Italy.
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Pan S, Moreno D, Cabellos JL, Romero J, Reyes A, Merino G, Chattaraj PK. In quest of strong Be-Ng bonds among the neutral Ng-Be complexes. J Phys Chem A 2013; 118:487-94. [PMID: 24199587 DOI: 10.1021/jp409941v] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The global minimum geometries of BeCN2 and BeNBO are linear BeN-CN and BeN-BO, respectively. The Be center of BeCN2 binds He with the highest Be-He dissociation energy among the studied neutral He-Be complexes. In addition, BeCN2 can be further tuned as a better noble gas trapper by attaching it with any electron-withdrawing group. Taking BeO, BeS, BeNH, BeNBO, and BeCN2 systems, the study at the CCSD(T)/def2-TZVP level of theory also shows that both BeCN2 and BeNBO systems have higher noble gas binding ability than those related reported systems. ΔG values for the formation of NgBeCN2/NgBeNBO (Ng = Ar-Rn) are negative at room temperature (298 K), whereas the same becomes negative at low temperature for Ng = He and Ne. The polarization plus the charge transfer is the dominating term in the interaction energy.
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Affiliation(s)
- Sudip Pan
- Department of Chemistry and Center for Theoretical Studies, Indian Institute of Technology , Kharagpur 721302, India
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