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Zhuang L, Wang J, Wan J, Huang C. Why do dipole moments of HCl-water clusters fail to determine acid dissociation? Phys Chem Chem Phys 2024; 26:17910-17917. [PMID: 38888219 DOI: 10.1039/d4cp01316f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
This paper quantitatively examines why dipole moments of HCl(H2O)n=1-8 cannot serve as the dissociation criterion for acid molecules using the Hirshfeld-I approach. Also, we propose the possible experimental parameter 〈P(HCl)〉, whose statistical average enables the assessment of acid dissociation in mixed clusters. Furthermore, our calculations reveal that a minimum of four water molecules are necessary to dissociate an HCl molecule.
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Affiliation(s)
- Lei Zhuang
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China.
| | - Jing Wang
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China.
| | - Jianguo Wan
- School of Physics, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Chuanfu Huang
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China.
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2
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Sun CQ, Yao C, Sun Y, Liu X, Fang H, Huang Y. (H, Li)Cl and LiOH hydration: Surface tension, solution conductivity and viscosity, and exothermic dynamics. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.03.077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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3
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Sun CQ. Unprecedented O:⇔:O compression and H↔H fragilization in Lewis solutions. Phys Chem Chem Phys 2019; 21:2234-2250. [DOI: 10.1039/c8cp06910g] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Charge injection in terms of protons, lone pairs, cations and anions by acid and base solvation mediates the HB network and properties of Lewis solutions through H↔H fragilization, O:⇔:O compression and polarization, ionic polarization and hydrating H2O dipolar screen shielding, anion–anion repulsion, compressed solvent H–O bond elongation and undercoordinated solute H–O bond contraction.
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Affiliation(s)
- Chang Q. Sun
- EBEAM
- Yangtze Normal University
- Chongqing 408100
- China
- NOVITUS
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4
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Ranković M, Chalabala J, Zawadzki M, Kočišek J, Slavíček P, Fedor J. Dissociative ionization dynamics of dielectric gas C3F7CN. Phys Chem Chem Phys 2019; 21:16451-16458. [PMID: 31312828 DOI: 10.1039/c9cp02188d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fluoronitrile C3F7CN is a promising candidate for the replacement of SF6 dielectric gas in high-voltage insulation.
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Affiliation(s)
- M. Ranković
- J. Heyrovský Institute of Physical Chemistry
- Czech Academy of Sciences
- 18223 Prague
- Czech Republic
| | - J. Chalabala
- Department of Physical Chemistry
- University of Chemistry and Technology
- 16628 Prague
- Czech Republic
| | - M. Zawadzki
- J. Heyrovský Institute of Physical Chemistry
- Czech Academy of Sciences
- 18223 Prague
- Czech Republic
- Department of Atomic, Molecular, and Optical Physics
| | - J. Kočišek
- J. Heyrovský Institute of Physical Chemistry
- Czech Academy of Sciences
- 18223 Prague
- Czech Republic
| | - P. Slavíček
- J. Heyrovský Institute of Physical Chemistry
- Czech Academy of Sciences
- 18223 Prague
- Czech Republic
- Department of Physical Chemistry
| | - J. Fedor
- J. Heyrovský Institute of Physical Chemistry
- Czech Academy of Sciences
- 18223 Prague
- Czech Republic
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5
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Sun CQ. Aqueous charge injection: solvation bonding dynamics, molecular nonbond interactions, and extraordinary solute capabilities. INT REV PHYS CHEM 2018. [DOI: 10.1080/0144235x.2018.1544446] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Chang Q. Sun
- EBEAM, Yangtze Normal University, Chongqing, People's Republic of China
- NOVITAS, EEE, Nanyang Technological University, Singapore, Singapore
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6
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Fárník M, Pysanenko A, Moriová K, Ballauf L, Scheier P, Chalabala J, Slavíček P. Ionization of Ammonia Nanoices with Adsorbed Methanol Molecules. J Phys Chem A 2018; 122:8458-8468. [PMID: 30296830 DOI: 10.1021/acs.jpca.8b07974] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Large ammonia clusters represent a model system of ices that are omnipresent throughout the space. The interaction of ammonia ices with other hydrogen-boding molecules such as methanol or water and their behavior upon an ionization are thus relevant in the astrochemical context. In this study, ammonia clusters (NH3) N with the mean size N̅ ≈ 230 were prepared in molecular beams and passed through a pickup cell in which methanol molecules were adsorbed. At the highest exploited pickup pressures, the average composition of (NH3) N(CH3OH) M clusters was estimated to be N: M ≈ 210:10. On the other hand, the electron ionization of these clusters yielded about 75% of methanol-containing fragments (NH3) n(CH3OH) mH+ compared to 25% contribution of pure ammonia (NH3) nH+ ions. On the basis of this substantial disproportion, we propose the following ionization mechanism: The prevailing ammonia is ionized in most cases, resulting in NH4+ core solvated most likely with four ammonia molecules, yielding the well-known "magic number" structure (NH3)4NH4+. The methanol molecules exhibit a strong propensity for sticking to the fragment ion. We have also considered mechanisms of intracluster reactions. In most cases, proton transfer between ammonia units take place. The theoretical calculations suggested the proton transfer either from the methyl group or from the hydroxyl group of the ionized methanol molecule to ammonia to be the energetically open channels. However, the experiments with selectively deuterated methanols did not show any evidence for the D+ transfer from the CD3 group. The proton transfer from the hydroxyl group could not be excluded entirely or confirmed unambiguously by the experiment.
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Affiliation(s)
- Michal Fárník
- J. Heyrovský Institute of Physical Chemistry, The Czech Academy of Sciences, Dolejškova 3, 182 23 Prague, Czech Republic
| | - Andriy Pysanenko
- J. Heyrovský Institute of Physical Chemistry, The Czech Academy of Sciences, Dolejškova 3, 182 23 Prague, Czech Republic
| | - Kamila Moriová
- J. Heyrovský Institute of Physical Chemistry, The Czech Academy of Sciences, Dolejškova 3, 182 23 Prague, Czech Republic
| | - Lorenz Ballauf
- Institut fur Ionenphysik und Angewandte Physik, Universitat Innsbruck, Technikerstr. 25, A-6020 Innsbruck, Austria
| | - Paul Scheier
- Institut fur Ionenphysik und Angewandte Physik, Universitat Innsbruck, Technikerstr. 25, A-6020 Innsbruck, Austria
| | - Jan Chalabala
- Department of Physical Chemistry, University of Chemistry and Technology, Technicka 5, 166 28 Prague, Czech Republic
| | - Petr Slavíček
- J. Heyrovský Institute of Physical Chemistry, The Czech Academy of Sciences, Dolejškova 3, 182 23 Prague, Czech Republic
- Department of Physical Chemistry, University of Chemistry and Technology, Technicka 5, 166 28 Prague, Czech Republic
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7
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Sun CQ, Chen J, Gong Y, Zhang X, Huang Y. (H, Li)Br and LiOH Solvation Bonding Dynamics: Molecular Nonbond Interactions and Solute Extraordinary Capabilities. J Phys Chem B 2018; 122:1228-1238. [DOI: 10.1021/acs.jpcb.7b09269] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Chang Q. Sun
- Chongqing
Key Laboratory of Extraordinary Coordination Bond and Advanced Materials
Technologies (EBEAM), Yangtze Normal University, Chongqing 408100, China
- School
EEE, Nanyang Technological University, Singapore 639798
| | - Jiasheng Chen
- Key
Laboratory of Low-Dimensional Materials and Application Technologies
(Ministry of Education) and School of Materials, Science and Engineering, Xiangtan University, Hunan 411105, China
| | - Yinyan Gong
- Institute
of Coordination Bond Metrology and Engineering (CBME), China Jiliang University, Hangzou 310018, China
| | - Xi Zhang
- Institute
of Nanosurface Science and Engineering, Shenzhen University, Shenzhen 518060, China
| | - Yongli Huang
- Key
Laboratory of Low-Dimensional Materials and Application Technologies
(Ministry of Education) and School of Materials, Science and Engineering, Xiangtan University, Hunan 411105, China
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8
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Suchan J, Hollas D, Curchod BFE, Slavíček P. On the importance of initial conditions for excited-state dynamics. Faraday Discuss 2018; 212:307-330. [DOI: 10.1039/c8fd00088c] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The vast majority of ab initio excited-state simulations are performed within semiclassical, trajectory-based approaches. Apart from the underlying electronic-structure theory, the reliability of the simulations is controlled by a selection of initial conditions for the classical trajectories. We discuss appropriate choices of initial conditions for simulations of different experimental arrangements: dynamics initiated by continuum-wave (CW) laser fields or triggered by ultrashort laser pulses.
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Affiliation(s)
- Jiří Suchan
- Department of Physical Chemistry
- University of Chemistry and Technology, Prague
- 16628 Prague
- Czech Republic
| | - Daniel Hollas
- Department of Physical Chemistry
- University of Chemistry and Technology, Prague
- 16628 Prague
- Czech Republic
| | | | - Petr Slavíček
- Department of Physical Chemistry
- University of Chemistry and Technology, Prague
- 16628 Prague
- Czech Republic
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9
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Zhou Y, Gong Y, Huang Y, Ma Z, Zhang X, Sun CQ. Fraction and stiffness transition from the H O vibrational mode of ordinary water to the HI, NaI, and NaOH hydration states. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.09.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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10
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Boda M, Naresh Patwari G. Insights into acid dissociation of HCl and HBr with internal electric fields. Phys Chem Chem Phys 2017; 19:7461-7464. [DOI: 10.1039/c6cp08870h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A critical electric field exerted by the solvent on the ionizable group leads to acid dissociation.
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Affiliation(s)
- Manjusha Boda
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - G. Naresh Patwari
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
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11
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Huang C, Kresin VV, Pysanenko A, Fárník M. Water cluster fragmentation probed by pickup experiments. J Chem Phys 2016; 145:104304. [DOI: 10.1063/1.4962220] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Chuanfu Huang
- Department of Physics and Astronomy, University of Southern California, Los Angeles, California 90089-0484, USA
| | - Vitaly V. Kresin
- Department of Physics and Astronomy, University of Southern California, Los Angeles, California 90089-0484, USA
| | - Andriy Pysanenko
- J. Heyrovský Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 3, 18223 Prague 8, Czech Republic
| | - Michal Fárník
- J. Heyrovský Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 3, 18223 Prague 8, Czech Republic
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12
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Chalabala J, Slavíček P. Nonadiabatic dynamics of floppy hydrogen bonded complexes: the case of the ionized ammonia dimer. Phys Chem Chem Phys 2016; 18:20422-32. [DOI: 10.1039/c6cp02714h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Non-adiabatic dynamics of a floppy hydrogen bonded ammonia dimer was studied by ab initio molecular dynamics simulations.
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Affiliation(s)
- Jan Chalabala
- University of Chemistry and Technology
- Department of Physical Chemistry
- 16628 Prague 6
- Czech Republic
| | - Petr Slavíček
- University of Chemistry and Technology
- Department of Physical Chemistry
- 16628 Prague 6
- Czech Republic
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13
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Guggemos N, Slavíček P, Kresin VV. Electric dipole moments of nanosolvated acid molecules in water clusters. PHYSICAL REVIEW LETTERS 2015; 114:043401. [PMID: 25679889 DOI: 10.1103/physrevlett.114.043401] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Indexed: 06/04/2023]
Abstract
The electric dipole moments of (H2O)nDCl (n=3-9) clusters have been measured by the beam-deflection method. Reflecting the (dynamical) charge distribution within the system, the dipole moment contributes information about the microscopic structure of nanoscale solvation. The addition of a DCl molecule to a water cluster results in a strongly enhanced susceptibility. There is evidence for a noticeable rise in the dipole moment occurring at n≈5-6. This size is consistent with predictions for the onset of ionic dissociation. Additionally, a molecular-dynamics model suggests that even with a nominally bound impurity an enhanced dipole moment can arise due to the thermal and zero-point motion of the proton and the water molecules. The experimental measurements and the calculations draw attention to the importance of fluctuations in defining the polarity of water-based nanoclusters and generally to the essential role played by motional effects in determining the response of fluxional nanoscale systems under realistic conditions.
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Affiliation(s)
- Nicholas Guggemos
- Department of Physics and Astronomy, University of Southern California, Los Angeles, California 90089-0484, USA
| | - Petr Slavíček
- Department of Physical Chemistry, University of Chemistry and Technology, Prague, Technická 5, 16628 Prague, Czech Republic
| | - Vitaly V Kresin
- Department of Physics and Astronomy, University of Southern California, Los Angeles, California 90089-0484, USA
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