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Li J, Guo H, Li J. Energy- and Angle-Resolved Scattering of Ne from Dodecane Liquid Surfaces: Theory Corroborating Experiment. J Phys Chem Lett 2024; 15:5824-5830. [PMID: 38787404 DOI: 10.1021/acs.jpclett.4c00994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Motivated by recent experimental work by the Neumark group, we present here an all-atom molecular dynamics study of Ne scattering from a dodecane liquid surface with the objective of elucidating the fundamental aspects of gas-liquid dynamics. Using a fine-tuned force field, the GPU-accelerated simulations reproduced semiquantitatively the energy- and angle-resolved experimental results. The branching ratio between the impulsive scattering (IS) and thermal desorption (TD) channels exhibits a clear correlation with the incidence energy (Ei) and angle. Ne atoms with lower Ei values are more likely to be trapped, yielding an increased TD ratio. For a given Ei, a large incidence angle led to a higher IS ratio. The energy transfer between Ne atoms and liquid dodecane was found to be more sensitive to the deflection angle than to the incidence or reflection angle. With an increasing deflection angle, the fractional energy loss increases, suggesting that more kinetic energy is transferred to the liquid.
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Affiliation(s)
- Junhong Li
- School of Chemistry and Chemical Engineering and Chongqing Key Laboratory of Chemical Theory and Mechanism, Chongqing University, Chongqing 401331, China
| | - Hua Guo
- Department of Chemistry and Chemical Biology, Center for Computational Chemistry, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Jun Li
- School of Chemistry and Chemical Engineering and Chongqing Key Laboratory of Chemical Theory and Mechanism, Chongqing University, Chongqing 401331, China
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2
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Kumar A, Craig VS, Page AJ, Webber GB, Wanless EJ, Andersson G. Ion Specificity in the Measured Concentration Depth Profile of Ions at the Vapor-Glycerol Interface. J Colloid Interface Sci 2022; 626:687-699. [DOI: 10.1016/j.jcis.2022.06.104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 06/04/2022] [Accepted: 06/21/2022] [Indexed: 10/31/2022]
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3
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Zhao X, Nathanson GM, Andersson GG. Competing Segregation of Br - and Cl - to a Surface Coated with a Cationic Surfactant: Direct Measurements of Ion and Solvent Depth Profiles. J Phys Chem A 2020; 124:11102-11110. [PMID: 33325710 DOI: 10.1021/acs.jpca.0c08859] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ion-surface scattering experiments can be used to measure elemental depth profiles on the angstrom scale in complex liquid mixtures. We employ NICISS (neutral impact collision ion scattering spectroscopy) to measure depth profiles of dissolved ions and solvent in liquid glycerol containing the cationic surfactant tetrahexylammonium bromide (THA+/Br-) at 0.013 M and mixtures of NaBr + NaCl at 0.4 M total concentration. The experiments reveal that Br- outcompetes Cl- in its attraction to surface THA+, and that THA+ segregates more extensively when more Br- ions are present. Intriguingly, the depths spanned by THA+, Br-, and Cl- ions generally increase with Br- bulk concentration, expanding from ∼10 to ∼25 Å for both Br- and Cl- depth profiles. This broadening likely occurs because of an increasing pileup of THA+ ions in a multilayer region that spreads the halide ions over a wider depth. The experiments indicate that cationic surfactants enhance Br- and Cl- concentrations in the surface region far beyond their bulk-phase values, making solutions coated with these surfactants potentially more reactive toward gases that can oxidize the halide ions.
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Affiliation(s)
- Xianyuan Zhao
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Gilbert M Nathanson
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Gunther G Andersson
- Centre for Nanoscale Science and Technology, Flinders University, Adelaide, South Australia 5001, Australia
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4
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Zhao X, Nathanson GM, Andersson GG. Experimental Depth Profiles of Surfactants, Ions, and Solvent at the Angstrom Scale: Studies of Cationic and Anionic Surfactants and Their Salting Out. J Phys Chem B 2020; 124:2218-2229. [PMID: 32075369 DOI: 10.1021/acs.jpcb.9b11686] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Neutral impact ion scattering spectroscopy (NICISS) is used to measure the depth profiles of ionic surfactants, counterions, and solvent molecules on the angstrom scale. The chosen surfactants are 0.010 m tetrahexylammonium bromide (THA+/Br-) and 0.0050 m sodium dodecyl sulfate (Na+/DS-) in the absence and presence of 0.30 m NaBr in liquid glycerol. NICISS determines the depth profiles of the elements C, O, Na, S, and Br through the loss in energy of 5 keV He atoms that travel into and out of the liquid, which is then converted into depth. In the absence of NaBr, we find that THA+ and its Br- counterion segregate together because of charge attraction, forming a narrow double layer that is 10 Å wide and 150 times more concentrated than in the bulk. With the addition of NaBr, THA+ is "salted out" to the surface, increasing the interfacial Br- concentration by 3-fold and spreading the anions over a ∼30 Å depth. Added NaBr similarly increases the interfacial concentration of DS- ions and broadens their positions. Conversely, the dissolved Br- ions are significantly depleted over a depth of 0-40 Å from the surface because of charge repulsion from DS- ions within the interfacial region. These different interfacial Br- propensities correlate with previously measured gas-liquid reactivities: gaseous Cl2 readily reacts with Br- ions in the presence of THA+ but drops 70-fold in the presence of DS-, demonstrating that surfactant headgroup charge controls the reactivity of Br- through changes in its depth profile.
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Affiliation(s)
- Xianyuan Zhao
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Gilbert M Nathanson
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Gunther G Andersson
- Institute for Nanoscale Science and Technology, Flinders University, Adelaide, SA 5001, Australia
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Dong R, Zhang T, Feng X. Interface-Assisted Synthesis of 2D Materials: Trend and Challenges. Chem Rev 2018; 118:6189-6235. [DOI: 10.1021/acs.chemrev.8b00056] [Citation(s) in RCA: 378] [Impact Index Per Article: 63.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Renhao Dong
- Department of Chemistry and Food Chemistry & Center for Advancing Electronics Dresden, Technische Universität Dresden, 01062 Dresden, Germany
| | - Tao Zhang
- Department of Chemistry and Food Chemistry & Center for Advancing Electronics Dresden, Technische Universität Dresden, 01062 Dresden, Germany
| | - Xinliang Feng
- Department of Chemistry and Food Chemistry & Center for Advancing Electronics Dresden, Technische Universität Dresden, 01062 Dresden, Germany
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6
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Shaloski MA, Gord JR, Staudt S, Quinn SL, Bertram TH, Nathanson GM. Reactions of N2O5 with Salty and Surfactant-Coated Glycerol: Interfacial Conversion of Br– to Br2 Mediated by Alkylammonium Cations. J Phys Chem A 2017; 121:3708-3719. [DOI: 10.1021/acs.jpca.7b02040] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michael A. Shaloski
- Department of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Joseph R. Gord
- Department of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Sean Staudt
- Department of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Sarah L. Quinn
- Department of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Timothy H. Bertram
- Department of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Gilbert M. Nathanson
- Department of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
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7
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Kann ZR, Skinner JL. Sub- and super-Maxwellian evaporation of simple gases from liquid water. J Chem Phys 2016; 144:154701. [DOI: 10.1063/1.4945625] [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)
- Z. R. Kann
- Theoretical Chemistry Institute and Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - J. L. Skinner
- Theoretical Chemistry Institute and Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, USA
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8
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Wiens JP, Nathanson GM, Alexander WA, Minton TK, Lakshmi S, Schatz GC. Collisions of Sodium Atoms with Liquid Glycerol: Insights into Solvation and Ionization. J Am Chem Soc 2014; 136:3065-74. [DOI: 10.1021/ja4106144] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Justin P. Wiens
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Gilbert M. Nathanson
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - William A. Alexander
- Department of Chemistry, The University of Memphis, Memphis, Tennessee 38152, United States
| | - Timothy K. Minton
- Department of Chemistry and
Biochemistry, Montana State University, Bozeman, Montana 59717, United States
| | - Sankaran Lakshmi
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - George C. Schatz
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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Huang Z, Hua W, Verreault D, Allen HC. Salty glycerol versus salty water surface organization: bromide and iodide surface propensities. J Phys Chem A 2013; 117:6346-53. [PMID: 23663033 DOI: 10.1021/jp4020228] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Salty NaBr and NaI glycerol solution interfaces are examined in the OH stretching region using broadband vibrational sum frequency generation (VSFG) spectroscopy. Raman and infrared (IR) spectroscopy are used to further understand the VSFG spectroscopic signature. The VSFG spectra of salty glycerol solutions reveal that bromide and iodide anions perturb the interfacial glycerol organization in a manner similar as that found in aqueous halide salt solutions, thus confirming the presence of bromide and iodide anions at the glycerol surface. Surface tension measurements are consistent with the surface propensity suggested by the VSFG data and also show that the surface excess increases with increasing salt concentration, similar to that of water. In addition, iodide is shown to have more surface prevalence than bromide, as has also been determined from aqueous solutions. These results suggest that glycerol behaves similarly to water with respect to surface activity and solvation of halide anions at its air/liquid interface.
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Affiliation(s)
- Zishuai Huang
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, USA
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10
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Dempsey LP, Faust JA, Nathanson GM. Near-Interfacial Halogen Atom Exchange in Collisions of Cl2 with 2.7 M NaBr–Glycerol. J Phys Chem B 2012; 116:12306-18. [DOI: 10.1021/jp308202k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Logan P. Dempsey
- Department of Chemistry, University of Wisconsin—Madison, 1101 University
Avenue, Madison, Wisconsin 53706-1322, United States
| | - Jennifer A. Faust
- Department of Chemistry, University of Wisconsin—Madison, 1101 University
Avenue, Madison, Wisconsin 53706-1322, United States
| | - Gilbert M. Nathanson
- Department of Chemistry, University of Wisconsin—Madison, 1101 University
Avenue, Madison, Wisconsin 53706-1322, United States
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11
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Egorov AV, Lyubartsev AP, Laaksonen A. Molecular dynamics simulation study of glycerol-water liquid mixtures. J Phys Chem B 2011; 115:14572-81. [PMID: 22004353 DOI: 10.1021/jp208758r] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
To study the effects of water on conformational dynamics of polyalcohols, Molecular Dynamics simulations of glycerol-water liquid mixtures have been carried out at different concentrations: 42.9 and 60.0 wt % of glycerol, respectively. On the basis of the analysis of backbone conformer distributions, it is found that the surrounding water molecules have a large impact on the populations of the glycerol conformers. While the local structure of water in the liquid mixture is surprisingly close to that in pure liquid water, the behavior of glycerols can be divided into three different categories where roughly 25% of them occur in a structure similar to that in pure liquid of glycerol, ca. 25% of them exist as monomers, solvated by water, and the remaining 50% of glycerols in the mixture form H-bonded strings as remains of the glycerol H-bond network. The typical glycerol H-bond network still exists even at the lower concentration of 40 wt % of glycerol. The microheterogeneity of water-glycerol mixtures is analyzed using time-averaged distributions of the sizes of the water aggregates. At 40 wt % of glycerol, the cluster sizes from 3 to 10 water molecules are observed. The increase of glycerol content causes a depletion of clusters leading to smaller 3-5 molecule clusters domination. Translational diffusion coefficients have been calculated to study the dynamical behavior of both glycerol and water molecules. Rotational-reorientational motion is studied both in overall and in selected substructures on the basis of time correlation functions. Characteristic time scales for different motional modes are deduced on the basis of the calculated correlation times. The general conclusion is that the presence of water increases the overall mobility of glycerol, while glycerol slows the mobility of water.
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Affiliation(s)
- Andrei V Egorov
- Faculty of Physics, St. Petersburg University, St. Petersburg, Russia
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12
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13
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Packwood DM, Phillips LF. A stochastic, local mode study of neon-liquid surface collision dynamics. Phys Chem Chem Phys 2011; 13:762-78. [PMID: 21042647 DOI: 10.1039/c0cp00787k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Equations of motion for a fast, light rare gas atom passing over a liquid surface are derived and used to infer the dynamics of neon collisions with squalane and perfluorinated polyether surfaces from experimental data. The equations incorporate the local mode model of a liquid surface via a stochastic process and explicitly account for impulsive collisional energy loss to the surface. The equations predict angular distributions for scattering of neon that are in good quantitative agreement with experimental data. Our key dynamical conclusions are that experimental angular distributions derive mainly from local mode surface topography rather than from structural features of individual surface molecules, and that the available data for these systems can be accounted for almost exclusively by single collisions between neon atoms and the liquid surface.
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Affiliation(s)
- Daniel M Packwood
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
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14
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Brastad SM, Nathanson GM. Molecular beam studies of HCl dissolution and dissociation in cold salty water. Phys Chem Chem Phys 2011; 13:8284-95. [DOI: 10.1039/c0cp02540b] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Packwood DM, Phillips LF. A statistical approach to energy loss during gas–liquid collisions. Chem Phys Lett 2010. [DOI: 10.1016/j.cplett.2010.03.066] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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16
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17
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Ma JY, Wang JB, Li XY, Huang Y, Zhu Q, Fu KX. A study on orientation and absorption spectrum of interfacial molecules by using continuum model. J Comput Chem 2008; 29:198-210. [PMID: 17557282 DOI: 10.1002/jcc.20773] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
In this work, a numerical procedure based on the continuum model is developed and applied to the solvation energy for ground state and the spectral shift against the position and the orientation of the interfacial molecule. The interface is described as a sharp boundary separating two bulk media. The polarizable continuum model (PCM) allows us to account for both electrostatic and nonelectrostatic solute-solvent interactions when we calculate the solvation energy. In this work we extend PCM to the interfacial system and the information about the position and orientation of the interfacial molecule can be obtained. Based on the developed expression of the electrostatic free energy of a nonequilibrium state, the numerical procedure has been implemented and used to deal with a series of test molecules. The time-dependent density functional theory (TDDFT) associated with PCM is used for the electron structure and the spectroscopy calculations of the test molecules in homogeneous solvents. With the charge distribution of the ground and excited states, the position- and orientation-dependencies of the solvation energy and the spectrum have been investigated for the interfacial systems, taking the electrostatic interaction, the cavitation energy, and the dispersion-repulsion interaction into account. The cavitation energy is paid particular attention, since the interface portion cut off by the occupation of the interfacial molecule contributes an extra part to the stabilization for the interfacial system. The embedding depth, the favorable orientational angle, and the spectral shift for the interfacial molecule have been investigated in detail. From the solvation energy calculations, an explanation has been given on why the interfacial molecule, even if symmetrical in structure, tends to take a tilting manner, rather than perpendicular to the interface.
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Affiliation(s)
- Jian-Yi Ma
- College of Chemical Engineering, Sichuan University, Chengdu 610065, People's Republic of China
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18
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Valuev AA, Kaklyugin AS, Norman HE. Molecular modelling of the chemical interaction of atoms and molecules with a surface. RUSSIAN CHEMICAL REVIEWS 2007. [DOI: 10.1070/rc1995v064n07abeh000166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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19
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Muenter AH, DeZwaan JL, Nathanson GM. Collisions of DCl with Pure and Salty Glycerol: Enhancement of Interfacial D → H Exchange by Dissolved NaI. J Phys Chem B 2006; 110:4881-91. [PMID: 16526727 DOI: 10.1021/jp0563235] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The fate of DCl molecules striking pure glycerol and a 2.6 M NaI-glycerol solution is investigated using scattering, uptake, and residence time measurements. We find that dissolved Na+ and I- ions alter every gas-liquid pathway from the moment of contact of DCl with the surface to its eventual emergence as HCl. In particular, the salt enhances both trapping-desorption of DCl and interfacial DCl --> HCl exchange at the expense of DCl entry into the bulk solution. The reduced entry and enhanced desorption of thermalized DCl molecules are interpreted by assuming that Na+ and I- ions bind to interfacial OH groups and tie up surface sites that would otherwise capture incoming DCl molecules. These ion-glycerol interactions may also be responsible for enhancing interfacial D --> H exchange by disrupting the interfacial hydrogen bond network that carries the newly formed H+ ion away from its Cl- pair. This disruption may increase the fraction of interfacial Cl- and H+ that recombine and desorb immediately as HCl before the ions separate and diffuse deeply into the bulk.
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Affiliation(s)
- Annabel H Muenter
- Department of Chemistry, University of Wisconsin--Madison, 1101 University Avenue, Madison, Wisconsin 53706-1322, USA
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20
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Affiliation(s)
- Ilan Benjamin
- Department of Chemistry, University of California, Santa Cruz, California 95064, USA
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21
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Vieceli J, Roeselova M, Potter N, Dang LX, Garrett BC, Tobias DJ. Molecular Dynamics Simulations of Atmospheric Oxidants at the Air−Water Interface: Solvation and Accommodation of OH and O3. J Phys Chem B 2005; 109:15876-92. [PMID: 16853017 DOI: 10.1021/jp051361+] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A comparative study of OH, O3, and H2O equilibrium aqueous solvation and gas-phase accommodation on liquid water at 300 K is performed using a combination of ab initio calculations and molecular dynamics simulations. Polarizable force fields are developed for the interaction potential of OH and O3 with water. The free energy profiles for transfer of OH and O3 from the gas phase to the bulk liquid exhibit a pronounced minimum at the surface, but no barrier to solvation in the bulk liquid. The calculated surface excess of each oxidant is comparable to calculated and experimental values for short chain, aliphatic alcohols. Driving forces for the surface activity are discussed in terms of the radial distribution functions and dipole orientation distributions for each molecule in the bulk liquid and at the surface. Simulations of OH, O3, and H2O impinging on liquid water with a thermal impact velocity are used to calculate thermal accommodation (S) and mass accommodation (alpha) coefficients. The values of S for OH, O3, and H2O are 0.95, 0.90, and 0.99, respectively. The approaching molecules are accelerated toward the liquid surface when they are approximately 5 angstroms above it. The molecules that reach thermal equilibrium with the surface do so within 2 ps of striking the surface, while those that do not scatter into the gas phase with excess translational kinetic energy in the direction perpendicular to the surface. The time constants for absorption and desorption range from approximately 35 to 140 ps, and the values of alpha for OH, O3, and H2O are 0.83, 0.047, and 0.99, respectively. The results are consistent with previous formulations of gas-phase accommodation from simulations, in which the process occurs by rapid thermal and structural equilibration followed by diffusion on the free energy profile. The implications of these results with respect to atmospheric chemistry are discussed.
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Affiliation(s)
- John Vieceli
- Environmental Molecular Science Institute and Department of Chemistry, University of California, Irvine, California 92697-2025, USA
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22
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Scott Day B, Morris JR, Troya D. Classical trajectory study of collisions of Ar with alkanethiolate self-assembled monolayers: Potential-energy surface effects on dynamics. J Chem Phys 2005; 122:214712. [PMID: 15974767 DOI: 10.1063/1.1924543] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We have investigated collisions between Ar and alkanethiolate self-assembled monolayers (SAMs) using classical trajectory calculations with several potential-energy surfaces. The legitimacy of the potential-energy surfaces is established through comparison with molecular-beam data and ab initio calculations. Potential-energy surfaces used in previous work overestimate the binding of Ar to the SAM, leading to larger energy transfer than found in the experiments. New calculations, based on empirical force fields that better reproduce ab initio calculations, exhibit improved agreement with the experiments. In particular, polar-angle-dependent average energies calculated with explicit-atom potential-energy surfaces are in excellent agreement with the experiments. Polar- and azimuthal-angle-dependent product translational energies are examined to gain deeper insight into the dynamics of Ar+SAM collisions.
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Affiliation(s)
- B Scott Day
- Department of Chemistry, Virginia Tech, 107 Davidson Hall, Blacksburg, Virginia 24061-0212, USA
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23
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Aggregation and fast diffusion of dye molecules on air–glycerol interface observed by confocal fluorescence microscopy. J Photochem Photobiol A Chem 2005. [DOI: 10.1016/j.jphotochem.2004.10.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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24
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Morita A, Sugiyama M, Kameda H, Koda S, Hanson DR. Mass Accommodation Coefficient of Water: Molecular Dynamics Simulation and Revised Analysis of Droplet Train/Flow Reactor Experiment. J Phys Chem B 2004. [DOI: 10.1021/jp030479s] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Akihiro Morita
- Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa, Sakyo-ku, Kyoto 606-8502, Japan
| | - Masakazu Sugiyama
- Department of Electronics Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Hirofumi Kameda
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Seiichiro Koda
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - David R. Hanson
- Atmospheric Chemistry Division, National Center for Atmospheric Research, Boulder, Colorado 80303-2000
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25
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Vieceli J, Ma OL, Tobias DJ. Uptake and Collision Dynamics of Gas Phase Ozone at Unsaturated Organic Interfaces. J Phys Chem A 2004. [DOI: 10.1021/jp0494584] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- John Vieceli
- Department of Chemistry, University of California, Irvine, California 92697-2025
| | - Odette L. Ma
- Department of Chemistry, University of California, Irvine, California 92697-2025
| | - Douglas J. Tobias
- Department of Chemistry, University of California, Irvine, California 92697-2025
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Abstract
Molecular beam scattering experiments provide a way to disentangle the elementary steps involved in energy transfer and chemical reactions between gases and liquids. After surveying the history and recent progress in this field, we review studies of the kinematics of gas-liquid collisions and proton exchange of HCl, DCl, and HBr with supercooled sulfuric acid and liquid glycerol. These experiments help to clarify the role of the surface region in controlling trapping and interfacial- and bulk-phase reactions.
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Affiliation(s)
- Gilbert M Nathanson
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706-1322, USA.
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27
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Chorny I, Benjamin I, Nathanson GM. Scattering, Trapping, and Ionization of HCl at the Surface of Liquid Glycerol. J Phys Chem B 2003. [DOI: 10.1021/jp035825k] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ilya Chorny
- Department of Chemistry, University of California, Santa Cruz, California 95064
| | - Ilan Benjamin
- Department of Chemistry, University of California, Santa Cruz, California 95064
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28
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Morita A. Molecular dynamics study of mass accommodation of methanol at liquid–vapor interfaces of methanol/water binary solutions of various concentrations. Chem Phys Lett 2003. [DOI: 10.1016/s0009-2614(03)00746-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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29
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Yan T, Hase WL. Comparisons of Models for Simulating Energy Transfer in Ne-Atom Collisions with an Alkyl Thiolate Self-Assembled Monolayer. J Phys Chem B 2002. [DOI: 10.1021/jp025902w] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Tianying Yan
- Institute for Scientific Computing, Department of Chemistry, Wayne State University, Detroit, Michigan 48202
| | - William L. Hase
- Institute for Scientific Computing, Department of Chemistry, Wayne State University, Detroit, Michigan 48202
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30
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Ringeisen BR, Muenter AH, Nathanson GM. Collisions of HCl, DCl, and HBr with Liquid Glycerol: Gas Uptake, D → H Exchange, and Solution Thermodynamics. J Phys Chem B 2002. [DOI: 10.1021/jp013960w] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Bradley R. Ringeisen
- Department of Chemistry, University of WisconsinMadison, 1101 University Avenue, Madison, Wisconsin 53706-1322
| | - Annabel H. Muenter
- Department of Chemistry, University of WisconsinMadison, 1101 University Avenue, Madison, Wisconsin 53706-1322
| | - Gilbert M. Nathanson
- Department of Chemistry, University of WisconsinMadison, 1101 University Avenue, Madison, Wisconsin 53706-1322
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31
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Ringeisen BR, Muenter AH, Nathanson GM. Collisions of DCl with Liquid Glycerol: Evidence for Rapid, Near-Interfacial D → H Exchange and Desorption. J Phys Chem B 2002. [DOI: 10.1021/jp013959x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bradley R. Ringeisen
- Department of Chemistry, University of WisconsinMadison, 1101 University Avenue, Madison, Wisconsin 53706-1322
| | - Annabel H. Muenter
- Department of Chemistry, University of WisconsinMadison, 1101 University Avenue, Madison, Wisconsin 53706-1322
| | - Gilbert M. Nathanson
- Department of Chemistry, University of WisconsinMadison, 1101 University Avenue, Madison, Wisconsin 53706-1322
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32
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Yan T, Hase WL. A Hamiltonian with a Subset of Normal Modes for Studying Mode-Specific Energy Transfer in Intermolecular Collisions. J Phys Chem A 2001. [DOI: 10.1021/jp003554x] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tianying Yan
- Department of Chemistry and Institute for Scientific Computing, Wayne State University, Detroit, Michigan 48202
| | - William L. Hase
- Department of Chemistry and Institute for Scientific Computing, Wayne State University, Detroit, Michigan 48202
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33
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Los J, Gleeson MA, Koppers WR, Weeding TL, Kleyn AW. Inelastic scattering of molecules from a liquid polymer surface. J Chem Phys 1999. [DOI: 10.1063/1.480466] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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34
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Tribe L, Manning M, Morgan JA, Stephens MD, Ronk WR, Treptow E, Nathanson GM, Skinner JL. Argon Scattering off the Surface of Liquid Indium: Exit Angle and Energy Dependence. J Phys Chem B 1998. [DOI: 10.1021/jp972596r] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- L. Tribe
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706
| | - Michelle Manning
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706
| | - Jason A. Morgan
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706
| | - M. D. Stephens
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706
| | - Warren R. Ronk
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706
| | - E. Treptow
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706
| | | | - J. L. Skinner
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706
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35
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Bosio SBM, Hase WL. Energy transfer in rare gas collisions with self-assembled monolayers. J Chem Phys 1997. [DOI: 10.1063/1.475263] [Citation(s) in RCA: 79] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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36
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Klassen JK, Fiehrer KM, Nathanson GM. Collisions of Organic Molecules with Concentrated Sulfuric Acid: Scattering, Trapping, and Desorption. J Phys Chem B 1997. [DOI: 10.1021/jp972329l] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jane K. Klassen
- Department of Chemistry, University of Wisconsin, 1101 University Ave., Madison, Wisconsin 53706-1322
| | - Kathleen M. Fiehrer
- Department of Chemistry, University of Wisconsin, 1101 University Ave., Madison, Wisconsin 53706-1322
| | - Gilbert M. Nathanson
- Department of Chemistry, University of Wisconsin, 1101 University Ave., Madison, Wisconsin 53706-1322
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37
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Root LJ, Berne BJ. Effect of pressure on hydrogen bonding in glycerol: A molecular dynamics investigation. J Chem Phys 1997. [DOI: 10.1063/1.474776] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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38
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Baldelli S, Schnitzer C, Shultz MJ, Campbell DJ. Sum Frequency Generation Investigation of Glycerol/Water Surfaces. J Phys Chem B 1997. [DOI: 10.1021/jp963863g] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Steve Baldelli
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155
| | - Cheryl Schnitzer
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155
| | - Mary Jane Shultz
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155
| | - D. J. Campbell
- Department of Chemistry, College of the Holy Cross, Worcester, Massachusetts 01610
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39
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Wilson MA, Pohorille A. Adsorption and solvation of ethanol at the water liquid-vapor interface: a molecular dynamics study. J Phys Chem B 1997; 101:3130-5. [PMID: 11540504 DOI: 10.1021/jp962629n] [Citation(s) in RCA: 86] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The free energy profiles of methanol and ethanol at the water liquid-vapor interface at 310K were calculated using molecular dynamics computer simulations. Both alcohols exhibit a pronounced free energy minimum at the interface and, therefore, have positive adsorption at this interface. The surface excess was computed from the Gibbs adsorption isotherm and was found to be in good agreement with experimental results. Neither compound exhibits a free energy barrier between the bulk and the surface adsorbed state. Scattering calculations of ethanol molecules from a gas phase thermal distribution indicate that the mass accommodation coefficient is 0.98, and the molecules become thermalized within 10 ps of striking the interface. It was determined that the formation of the solvation structure around the ethanol molecule at the interface is not the rate-determining step in its uptake into water droplets. The motion of an ethanol molecule in a water lamella was followed for 30 ns. The time evolution of the probability distribution of finding an ethanol molecule that was initially located at the interface is very well described by the diffusion equation on the free energy surface.
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Affiliation(s)
- M A Wilson
- Exobiology Branch, NASA-Ames Research Center, Moffett Field, California 94035-1000, USA
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40
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Nathanson GM, Davidovits P, Worsnop DR, Kolb CE. Dynamics and Kinetics at the Gas−Liquid Interface. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp953548e] [Citation(s) in RCA: 246] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gilbert M. Nathanson
- Department of Chemistry, University of Wisconsin, 1101 University Ave., Madison, Wisconsin 53706
| | - Paul Davidovits
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02167
| | - Douglas R. Worsnop
- Center for Chemical and Environmental Physics, Aerodyne Research, Inc., Billerica, Massachusetts 01821
| | - Charles E. Kolb
- Center for Chemical and Environmental Physics, Aerodyne Research, Inc., Billerica, Massachusetts 01821
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41
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Benjamin I. Chemical Reactions and Solvation at Liquid Interfaces: A Microscopic Perspective. Chem Rev 1996; 96:1449-1476. [PMID: 11848798 DOI: 10.1021/cr950230+] [Citation(s) in RCA: 280] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ilan Benjamin
- Department of Chemistry, University of California, Santa Cruz, California 95064
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