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Boukar O, Fifen JJ, Conradie J, Conradie MM. Solvation energies of the ferrous ion in water and in ammonia at various temperatures. J Mol Model 2024; 30:52. [PMID: 38285315 DOI: 10.1007/s00894-024-05839-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 01/09/2024] [Indexed: 01/30/2024]
Abstract
CONTEXT The solvation of metal ions is crucial to understanding relevant properties in physics, chemistry, or biology. Therefore, we present solvation enthalpies and solvation free energies of the ferrous ion in water and ammonia. Our results agree well with the experimental reports for the hydration free energy and hydration enthalpy. We obtained [Formula: see text] kJ mol[Formula: see text] for the hydration free energy and [Formula: see text] kJ mol[Formula: see text] for the hydration enthalpy of ferrous ion in water at room temperature. At ambient temperature, we obtained [Formula: see text] kJ mol[Formula: see text] as the [Formula: see text] ammoniation free energy and [Formula: see text] kJ mol[Formula: see text] for the ammoniation enthalpy. In addition, the free energy of solvation is deeply affected when the temperature increases. This pattern can be attributed to the rise of entropy when the temperature rises. Besides, the temperature does not affect the ammoniation enthalpies and the hydration enthalpy of the [Formula: see text] ion. METHOD All the geometry optimizations are performed at the MP2 methods associated with the 6-31++g(d,p) basis set of Pople. solvated phase structures of [Formula: see text] ion in water or in ammonia are performed using the PCM model. The [Formula: see text] program suite was used to perform all the calculations. The program TEMPO was also used to evaluate the temperature sensitivity of the different obtained geometries.
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Affiliation(s)
- Ousman Boukar
- Department of Physics, Faculty of Science, University of Maroua, P.O. Box 46, Maroua, Cameroon.
| | - Jean Jules Fifen
- Quantum Theory and Aplications Unit, Department of Physics, Faculty of Science, The University of Ngaoundere, P.O. Box 454, Ngaoundere, Cameroon.
| | - Jeanet Conradie
- Department of Chemistry, University of the Free State, PO Box 339, Bloemfontein, 9300, South Africa
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2
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Peng M, Duignan TT, Nguyen AV. Quantifying the Counterion-Specific Effect on Surfactant Adsorption Using Modeling, Simulation, and Experiments. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:13012-13022. [PMID: 33084333 DOI: 10.1021/acs.langmuir.0c02403] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Ionic surfactants behave differently in the presence of various counterions, which plays an important role in many scientific and engineering processes. Previous work has shown that the counterion-specific surface tension can be reproduced with classical adsorption models, but the underlying origin of this effect has not been explained. In this paper, we extend our previously developed adsorption model to account for the specific counterion adsorption. This model can accurately predict the surface tension of surfactant solutions like sodium dodecyl sulfate (SDS) in the presence of the monovalent salts LiCl, NaCl, KCl, and CsCl. The predicted surface excess and surface potential are validated by corresponding sum-frequency generation (SFG) spectroscopy experiments. We also used molecular dynamic (MD) simulation to explain the origin of the counterion-specific effect for surfactant behavior. Our study shows that for SDS, binding of the counterion to both the headgroup and a few CH2 fragments close to the surfactant head contributes to the counterion-specific effect. In general, SDS behaves like a large ion, and it prefers to bind with large counterions such as Cs+, which is consistent with Collins's law of matching water affinity. Therefore, large counterions enhance the surface adsorption and lower the surface tension the most.
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Affiliation(s)
- Mengsu Peng
- School of Chemical Engineering, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Timothy T Duignan
- School of Chemical Engineering, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Anh V Nguyen
- School of Chemical Engineering, University of Queensland, Brisbane, Queensland 4072, Australia
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3
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Li X, Pramhaas V, Rameshan C, Blaha P, Rupprechter G. Coverage-Induced Orientation Change: CO on Ir(111) Monitored by Polarization-Dependent Sum Frequency Generation Spectroscopy and Density Functional Theory. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2020; 124:18102-18111. [PMID: 32855760 PMCID: PMC7444014 DOI: 10.1021/acs.jpcc.0c04986] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 07/21/2020] [Indexed: 05/16/2023]
Abstract
Polarization-dependent sum frequency generation (SFG) spectroscopy was applied to study the adsorption of carbon monoxide (CO) on the well-ordered (annealed) Ir(111) single-crystal surface at various CO coverages. Coverage was adjusted by varying the substrate temperature (300-575 K) and/or gas pressure (10-7 to 1.0 mbar). Under all conditions investigated, only a single absorption band at 2038-2094 cm-1 was observed, characteristic of linearly bonded (on-top) CO. Using different polarizations, PPP and SSP spectra were acquired with a high signal-to-noise ratio, whereby tilt angles of CO on Ir(111) could be determined for the first time by SFG. It was found that not only the vibrational frequency of on-top CO but also the tilt angle was strongly coverage-dependent. The higher the coverage was, the larger the vibrational frequency and the tilt angle were. At about 0.7 ML coverage, a CO tilt angle of at least 20° was observed, which is in good agreement with density functional theory (DFT) calculations. In addition, the molecular hyperpolarizability ratio (R) of CO (at 0.13 ML in UHV) was determined to be 0.08. Based on the combined SFG/DFT results, it may change to 0.29 at 0.77 ML coverage.
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4
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Peng M, Nguyen AV. Adsorption of ionic surfactants at the air-water interface: The gap between theory and experiment. Adv Colloid Interface Sci 2020; 275:102052. [PMID: 31753297 DOI: 10.1016/j.cis.2019.102052] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Accepted: 10/21/2019] [Indexed: 10/25/2022]
Abstract
We review the experimental and theoretical results for the adsorption and structure of ionic surfactants at the air-liquid interface. The results show that ionic surfactants form thick adsorption layers at the interfacial region. We also review several adsorption models for ionic surfactants, which become increasingly complex as they capture the many features of adsorption layers. However, the adsorption layer structures determined by experiments and the structures predicted by models do not match because most models assume very thin adsorption layers. We show the discrepancies between measured and predicted surface properties and provide several explanations. We conclude that the mismatch in the adsorption layer structure provided by experiments and the structure provided by adsorption models is the main reason for the discrepancies in the surface excess and the surface potential.
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5
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Gan W, Feng RR, Wang HF. Comment on "Orientational Distribution of Free O-H Groups of Interfacial Water is Exponential". PHYSICAL REVIEW LETTERS 2019; 123:099601. [PMID: 31524495 DOI: 10.1103/physrevlett.123.099601] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Indexed: 06/10/2023]
Affiliation(s)
- Wei Gan
- State Key Laboratory of Advanced Welding and Joining, and School of Science, Harbin Institute of Technology (Shenzhen), University Town, Shenzhen, Guangdong, 518055, China
| | - Ran-Ran Feng
- Key Laboratory of Microgravity, Beijing Key Laboratory of Engineered Construction and Mechanobiology, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
| | - Hong-Fei Wang
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 220 Handan Road, Shanghai 200433, China
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6
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Qian Y, Deng GH, Lapp J, Rao Y. Interfaces of Gas-Aerosol Particles: Relative Humidity and Salt Concentration Effects. J Phys Chem A 2019; 123:6304-6312. [PMID: 31253043 DOI: 10.1021/acs.jpca.9b03896] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The growth of aerosol particles is intimately related to chemical reactions in the gas phase and particle phase and at gas-aerosol particle interfaces. While chemical reactions in gas and particle phases are well documented, there is very little information regarding interface-related reactions. The interface of gas-aerosol particles not only facilitates a physical channel for organic species to enter and exit but also provides a necessary lane for culturing chemical reactions. The physical and chemical properties of gas-particle interfaces have not been studied extensively, nor have the reactions occurring at the interfaces been well researched. This is mainly due to the fact that there is a lack of suitable in situ interface-sensitive analytical techniques for direct measurements of interfacial properties. The motivation behind this research is to understand how interfaces play a role in the growth of aerosol particles. We have developed in situ interface-specific second harmonic scattering to examine interfacial behaviors of molecules of aerosol particles under different relative humidity (RH) and salt concentrations. Both the relative humidity and salt concentration can change the particle size and the phase of the aerosol. RH not only varies the concentration of solutes inside aerosol particles but also changes interfacial hydration in local regions. Organic molecules were found to exhibit distinct behaviors at the interfaces and bulk on NaCl particles under different RH levels. Our quantitative analyses showed that the interfacial adsorption free energies remain unchanged while interfacial areas increase as the relative humidity increases. Furthermore, the surface tension of NaCl particles decreases as the RH increases. Our experimental findings from the novel nonlinear optical scattering technique stress the importance of interfacial water behaviors on aerosol particles in the atmosphere.
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Affiliation(s)
- Yuqin Qian
- Department of Chemistry and Biochemistry , Utah State University , Logan , Utah 84322 , United States
| | - Gang-Hua Deng
- Department of Chemistry and Biochemistry , Utah State University , Logan , Utah 84322 , United States
| | - Jordan Lapp
- Department of Chemistry and Biochemistry , Utah State University , Logan , Utah 84322 , United States
| | - Yi Rao
- Department of Chemistry and Biochemistry , Utah State University , Logan , Utah 84322 , United States
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7
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Wei Q, Zhou D, Bian H. Molecular structure and adsorption of dimethyl sulfoxide at the air/aqueous solution interface probed by non-resonant second harmonic generation. Phys Chem Chem Phys 2018; 20:11758-11767. [DOI: 10.1039/c8cp00099a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, non-resonant second harmonic generation (SHG) was used to investigate the molecular structure and adsorption of DMSO at the air/neat DMSO liquid and air/DMSO aqueous solution interfaces.
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Affiliation(s)
- Qianshun Wei
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an
- China
| | - Dexia Zhou
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an
- China
| | - Hongtao Bian
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an
- China
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8
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Wang L, Shen Y, Yang Y, Lu W, Li W, Wei F, Zheng G, Zhou Y, Zheng W, Cao Y. Stern-Layer Adsorption of Oligonucleotides on Lamellar Cationic Lipid Bilayer Investigated by Polarization-Resolved SFG-VS. ACS OMEGA 2017; 2:9241-9249. [PMID: 30023605 PMCID: PMC6045418 DOI: 10.1021/acsomega.7b01214] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2017] [Accepted: 11/29/2017] [Indexed: 06/08/2023]
Abstract
The molecular interaction between the oligonucleotides and lipid membranes is the key to the functions of virus, aptamer, and various oligonucleotide-based materials. In this study, the conformational changes of oligonucleotides (dT25) on lamellar cationic 1,2-dimyristoyl-3-trimethylammonium-propane (DMTAP) bilayer were investigated by polarization-resolved sum frequency generation vibrational spectroscopy (SFG-VS) in situ. The SFG-VS spectra within different wavenumber ranges were analyzed to give conformation details of thymine groups, phosphate groups, and OD/OH groups and to provide a comprehensive and fundamental understanding of the oligonucleotide adsorption on a model bilayer. It is shown that the adsorption of dT25 on DMTAP bilayer reaches maximum at CdT ≈ 500 nM. And the conformation of dT25 molecules change significantly when surface charge of DMTAP bilayer reaches the point of zero charge (PZC) at CdT ≈ 100 nM. Combined spectroscopic evidences also indicate that the formation of electric double layer at the DMTAP/dT25 surface follows the Gouy-Chapman-Stern model. The analysis results also show that the symmetric PO2- stretching mode of oligonucleotide molecules can serve as a sensitive vibration molecular probe for quantifying the oligonucleotide/lipid charge ratio and determine the point of zero charge (PZC) of lipid bilayer surface, which may help researchers to control the layer-by-layer assembly of oligonucleotide-lipid complexes and to improve the efficiency genetic therapy against cancer and viral infections.
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Affiliation(s)
- Liqun Wang
- Institution
for Interdisciplinary Research, & Key Laboratory
of Optoelectronic Chemical Materials and Devices of Ministry of Education, College of Life
Science, School of Physics and Information Engineering, and School of Chemical and Environmental
Engineering, Jianghan University, 430056 Wuhan, Hubei, P. R. China
| | - Yang Shen
- Institution
for Interdisciplinary Research, & Key Laboratory
of Optoelectronic Chemical Materials and Devices of Ministry of Education, College of Life
Science, School of Physics and Information Engineering, and School of Chemical and Environmental
Engineering, Jianghan University, 430056 Wuhan, Hubei, P. R. China
| | - Yanbo Yang
- Institution
for Interdisciplinary Research, & Key Laboratory
of Optoelectronic Chemical Materials and Devices of Ministry of Education, College of Life
Science, School of Physics and Information Engineering, and School of Chemical and Environmental
Engineering, Jianghan University, 430056 Wuhan, Hubei, P. R. China
| | - Wangting Lu
- Institution
for Interdisciplinary Research, & Key Laboratory
of Optoelectronic Chemical Materials and Devices of Ministry of Education, College of Life
Science, School of Physics and Information Engineering, and School of Chemical and Environmental
Engineering, Jianghan University, 430056 Wuhan, Hubei, P. R. China
| | - Wenhui Li
- Institution
for Interdisciplinary Research, & Key Laboratory
of Optoelectronic Chemical Materials and Devices of Ministry of Education, College of Life
Science, School of Physics and Information Engineering, and School of Chemical and Environmental
Engineering, Jianghan University, 430056 Wuhan, Hubei, P. R. China
| | - Feng Wei
- Institution
for Interdisciplinary Research, & Key Laboratory
of Optoelectronic Chemical Materials and Devices of Ministry of Education, College of Life
Science, School of Physics and Information Engineering, and School of Chemical and Environmental
Engineering, Jianghan University, 430056 Wuhan, Hubei, P. R. China
| | - Guang Zheng
- Institution
for Interdisciplinary Research, & Key Laboratory
of Optoelectronic Chemical Materials and Devices of Ministry of Education, College of Life
Science, School of Physics and Information Engineering, and School of Chemical and Environmental
Engineering, Jianghan University, 430056 Wuhan, Hubei, P. R. China
| | - Youhua Zhou
- Institution
for Interdisciplinary Research, & Key Laboratory
of Optoelectronic Chemical Materials and Devices of Ministry of Education, College of Life
Science, School of Physics and Information Engineering, and School of Chemical and Environmental
Engineering, Jianghan University, 430056 Wuhan, Hubei, P. R. China
| | - Wanquan Zheng
- Institution
for Interdisciplinary Research, & Key Laboratory
of Optoelectronic Chemical Materials and Devices of Ministry of Education, College of Life
Science, School of Physics and Information Engineering, and School of Chemical and Environmental
Engineering, Jianghan University, 430056 Wuhan, Hubei, P. R. China
- Institut
des Sciences Moléculaires d’Orsay, Université Paris-Sud, 91405 Orsay Cedex, France
| | - Yuancheng Cao
- Institution
for Interdisciplinary Research, & Key Laboratory
of Optoelectronic Chemical Materials and Devices of Ministry of Education, College of Life
Science, School of Physics and Information Engineering, and School of Chemical and Environmental
Engineering, Jianghan University, 430056 Wuhan, Hubei, P. R. China
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9
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Dutta C, Svirida A, Mammetkuliyev M, Rukhadze M, Benderskii AV. Insight into Water Structure at the Surfactant Surfaces and in Microemulsion Confinement. J Phys Chem B 2017; 121:7447-7454. [DOI: 10.1021/acs.jpcb.7b04733] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chayan Dutta
- Department
of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Anton Svirida
- Department
of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Muhammet Mammetkuliyev
- Department
of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Marina Rukhadze
- Faculty
of Exact and Natural Sciences, Ivane Javakhishvili Tbilisi State University, 3 I. Chavchavadze Avenue, Tbilisi 0128, Georgia
| | - Alexander V. Benderskii
- Department
of Chemistry, University of Southern California, Los Angeles, California 90089, United States
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10
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Ghadar Y, Parmar P, Samuels AC, Clark AE. Solutes at the liquid:liquid phase boundary—Solubility and solvent conformational response alter interfacial microsolvation. J Chem Phys 2015; 142:104707. [DOI: 10.1063/1.4914142] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Yasaman Ghadar
- Department of Chemistry and the Materials Science and Engineering, Washington State University, Pullman, Washington 99164, USA
| | - Payal Parmar
- Department of Chemistry and the Materials Science and Engineering, Washington State University, Pullman, Washington 99164, USA
| | - Alex C. Samuels
- Department of Chemistry and the Materials Science and Engineering, Washington State University, Pullman, Washington 99164, USA
| | - Aurora E. Clark
- Department of Chemistry and the Materials Science and Engineering, Washington State University, Pullman, Washington 99164, USA
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11
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Feng RR, Guo Y, Wang HF. Reorientation of the “free OH” group in the top-most layer of air/water interface of sodium fluoride aqueous solution probed with sum-frequency generation vibrational spectroscopy. J Chem Phys 2014; 141:18C507. [PMID: 25399172 DOI: 10.1063/1.4895561] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Affiliation(s)
- Ran-Ran Feng
- International Center for Quantum Materials, Peking University, Beijing 100871, People's Republic of China
| | - Yuan Guo
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
| | - Hong-Fei Wang
- William R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, 902 Battelle Boulevard, P.O. Box 999, Richland, Washington 99352, USA
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12
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Guidi HS, Henriques VB. Lattice solution model for order-disorder transitions in membranes and Langmuir monolayers. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2014; 90:052705. [PMID: 25493814 DOI: 10.1103/physreve.90.052705] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Indexed: 06/04/2023]
Abstract
Lipid monolayers and bilayers have been used as experimental models for the investigation of membrane thermal transitions. The main transition takes place near ambient temperatures for several lipids and reflects the order-disorder transition of lipid hydrocarbonic chains, which is accompanied by a surface density gap. Equivalence between the transitions in the two systems has been argued by several authors. The two-state statistical model adopted by numerous authors for different properties of the membrane, such as permeability, diffusion, and mixture or insertion of cholesterol or protein, is inadequate for the description of charged membranes, since it lacks a proper description of surface density. We propose a lattice solution model which adds interactions with water molecules to lipid-lipid interactions and obtain its thermal properties under a mean-field approach. Density variations, although concomitant with chain order variations, are independent of the latter. The model presents both chain order and gas-liquid transitions, and extends the range of applicability of previous models, yielding Langmuir isotherms in the full range of pressures and areas.
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Affiliation(s)
- Henrique S Guidi
- Instituto de Física, Universidade de São Paulo, P.O. Box 66318, 05314-970 São Paulo, SP, Brazil and Centro de Ciências Físicas e Matemáticas, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Vera B Henriques
- Instituto de Física, Universidade de São Paulo, P.O. Box 66318, 05314-970 São Paulo, SP, Brazil
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13
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Nguyen KT, Nguyen AV, Evans GM. Interactions between halide anions and interfacial water molecules in relation to the Jones–Ray effect. Phys Chem Chem Phys 2014; 16:24661-5. [DOI: 10.1039/c4cp03629h] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The Jones–Ray effect is not caused by enhanced salt adsorption, but by the weakened average dipole moment of interfacial water molecules interacting with halide anions.
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Affiliation(s)
- Khoi Tan Nguyen
- School of Chemical Engineering
- The University of Queensland
- Brisbane, Australia
- School of Biotechnology
- International University
| | - Anh V. Nguyen
- School of Chemical Engineering
- The University of Queensland
- Brisbane, Australia
| | - Geoffrey M. Evans
- School of Engineering
- The University of Newcastle
- University Drive
- Callaghan, Australia
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14
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Ghadar Y, Clark AE. Intermolecular network analysis of the liquid and vapor interfaces of pentane and water: microsolvation does not trend with interfacial properties. Phys Chem Chem Phys 2014; 16:12475-87. [DOI: 10.1039/c4cp00602j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mesoscopic interfacial properties are not correlated to the distribution of microsolvated species and mechanisms (above) for microsolvation at water:pentane interfaces.
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Affiliation(s)
- Yasaman Ghadar
- Department of Chemistry
- Washington State University
- Pullman, USA
| | - Aurora E. Clark
- Department of Chemistry
- Washington State University
- Pullman, USA
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15
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Vinaykin M, Benderskii AV. Orientational Dynamics in Sum Frequency Spectroscopic Line Shapes. J Phys Chem B 2013; 117:15833-42. [DOI: 10.1021/jp408048a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mikhail Vinaykin
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Alexander V. Benderskii
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
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16
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Lin CK, Yang L, Hayashi M, Zhu CY, Fujimura Y, Shen YR, Lin SH. Theory and Applications of Sum-Frequency Generations. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.201300416] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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17
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Feng RR, Guo Y, Lü R, Velarde L, Wang HF. Consistency in the Sum Frequency Generation Intensity and Phase Vibrational Spectra of the Air/Neat Water Interface. J Phys Chem A 2011; 115:6015-27. [DOI: 10.1021/jp110404h] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ran-ran Feng
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, the Chinese Academy of Sciences, Beijing 100190, China
| | - Yuan Guo
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, the Chinese Academy of Sciences, Beijing 100190, China
| | - Rong Lü
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Luis Velarde
- William R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, United States
| | - Hong-fei Wang
- William R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, United States
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18
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Niga P, Johnson CM, Frey JG, Rutland MW. Crown ethers at the aqueous solution–air interface. Part 2. Electrolyte effects, ethylene oxide hydration and temperature behaviour. Phys Chem Chem Phys 2011; 13:7939-47. [DOI: 10.1039/c0cp02144j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Malenkov GG. Structure and dynamics of surfaces of thin films and water microdroplets. COLLOID JOURNAL 2010. [DOI: 10.1134/s1061933x1005011x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Bunkin NF, Ninham BW, Babenko VA, Suyazov NV, Sychev AA. Role of dissolved gas in optical breakdown of water: differences between effects due to helium and other gases. J Phys Chem B 2010; 114:7743-52. [PMID: 20496876 DOI: 10.1021/jp101657f] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
It is shown that water contains defects in the form of heterogeneous optical breakdown centers. Long-living complexes composed of gas and liquid molecules may serve as nuclei for such centers. A new technique for removing dissolved gas from water is developed. It is based on a "helium washing" routine. The structure of helium-washed water is very different from that of water containing dissolved atmospheric gas. It is able to withstand higher optical intensities and temperatures of superheating compared with the nonprocessed ones. The characteristics of plasma spark and values of the breakdown thresholds for processed and nonprocessed samples are given.
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Affiliation(s)
- N F Bunkin
- A.M. Prokhorov General Physics Institute, Russian Academy of Sciences, ul. Vavilova, 38, 119991, Moscow, Russia.
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21
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Wei F, Xu YY, Guo Y, Liu SL, Wang HF. Quantitative Surface Chirality Detection with Sum Frequency Generation Vibrational Spectroscopy: Twin Polarization Angle Approach. CHINESE J CHEM PHYS 2009. [DOI: 10.1088/1674-0068/22/06/592-600] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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22
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Fan Y, Chen X, Yang L, Cremer PS, Gao YQ. On the Structure of Water at the Aqueous/Air Interface. J Phys Chem B 2009; 113:11672-9. [DOI: 10.1021/jp900117t] [Citation(s) in RCA: 119] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yubo Fan
- Department of Chemistry, Texas A&M University, College Station, Texas 77843
| | - Xin Chen
- Department of Chemistry, Texas A&M University, College Station, Texas 77843
| | - Lijiang Yang
- Department of Chemistry, Texas A&M University, College Station, Texas 77843
| | - Paul S. Cremer
- Department of Chemistry, Texas A&M University, College Station, Texas 77843
| | - Yi Qin Gao
- Department of Chemistry, Texas A&M University, College Station, Texas 77843
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Bian HT, Feng RR, Guo Y, Wang HF. Specific Na+ and K+ cation effects on the interfacial water molecules at the air/aqueous salt solution interfaces probed with nonresonant second harmonic generation. J Chem Phys 2009; 130:134709. [DOI: 10.1063/1.3104609] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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24
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Feng RR, Bian HT, Guo Y, Wang HF. Spectroscopic evidence for the specific Na+ and K+ interactions with the hydrogen-bonded water molecules at the electrolyte aqueous solution surfaces. J Chem Phys 2009; 130:134710. [DOI: 10.1063/1.3104610] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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25
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Xu M, Spinney R, Allen HC. Water Structure at the Air−Aqueous Interface of Divalent Cation and Nitrate Solutions. J Phys Chem B 2009; 113:4102-10. [PMID: 19239253 DOI: 10.1021/jp806565a] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Man Xu
- Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210
| | - Rick Spinney
- Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210
| | - Heather C. Allen
- Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210
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Zhang Z, Zheng DS, Guo Y, Wang HF. Water penetration/accommodation and phase behaviour of the neutral langmuir monolayer at the air/water interface probed with sum frequency generation vibrational spectroscopy (SFG-VS). Phys Chem Chem Phys 2009; 11:991-1002. [DOI: 10.1039/b813187b] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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28
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Feng J, Wu D, Wen J, Liu SL, Wang HF. Vibrational Spectra and Adsorption of Trisiloxane Superspreading Surfactant at Air/Water Interface Studied with Sum Frequency Generation Vibrational Spectroscopy. CHINESE J CHEM PHYS 2008. [DOI: 10.1088/1674-0068/21/04/314-323] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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29
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Bian HT, Feng RR, Xu YY, Guo Y, Wang HF. Increased interfacial thickness of the NaF, NaCl and NaBr salt aqueous solutions probed with non-resonant surface second harmonic generation (SHG). Phys Chem Chem Phys 2008; 10:4920-31. [DOI: 10.1039/b806362a] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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30
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Wang Y, Cui ZF, Wang HF. Experimental Observables and Macroscopic Susceptibility/Microscopic Polarizability Tensors for Third and Fourth-Order Nonlinear Spectroscopy of Ordered Molecular System. CHINESE J CHEM PHYS 2007. [DOI: 10.1088/1674-0068/20/04/449-460] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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31
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Wu H, Zhang WK, Gan W, Cui ZF, Wang HF. An empirical approach to the bond additivity model in quantitative interpretation of sum frequency generation vibrational spectra. J Chem Phys 2006; 125:133203. [PMID: 17029450 DOI: 10.1063/1.2352746] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Knowledge of the ratios between different polarizability betai'j'k' tensor elements of a chemical group in a molecule is crucial for quantitative interpretation and polarization analysis of its sum frequency generation vibrational spectroscopy (SFG-VS) spectrum at interface. The bond additivity model (BAM) or the hyperpolarizability derivative model along with experimentally obtained Raman depolarization ratios has been widely used to obtain such tensor ratios for the CH3, CH2, and CH groups. Successfully, such treatment can quantitatively reproduce the intensity polarization dependence in SFG-VS spectra for the symmetric (SS) and asymmetric (AS) stretching modes of CH3 and CH2 groups, respectively. However, the relative intensities between the SS and AS modes usually do not agree with each other within this model even for some of the simplest molecular systems, such as the air/methanol interface. This fact certainly has cast uncertainties on the effectiveness and conclusions based on the BAM. One of such examples is that the AS mode of CH3 group has never been observed in SFG-VS spectra from the air/methanol interface, while this AS mode is usually very strong for SFG-VS spectra from the air/ethanol interface, other short chain alcohol, as well as long chain surfactants. In order to answer these questions, an empirical approach from known Raman and IR spectra is used to make corrections to the BAM. With the corrected ratios between the betai'j'k' tensor elements of the SS and AS modes, all features in the SFG-VS spectra of the air/methanol and air/ethanol interfaces can be quantitatively interpreted. This empirical approach not only provides new understandings of the effectiveness and limitations of the bond additivity model but also provides a practical way for its application in SFG-VS studies of molecular interfaces.
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Affiliation(s)
- Hui Wu
- Department of Physics, Anhui Normal University, Wuhu, Anhui Province, 241000, China
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32
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Zhang WK, Wang HF, Zheng DS. Quantitative measurement and interpretation of optical second harmonic generation from molecular interfaces. Phys Chem Chem Phys 2006; 8:4041-52. [PMID: 17028693 DOI: 10.1039/b608005g] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Second harmonic generation (SHG) has been proven a uniquely effective technique in the investigation of molecular structure and conformations, as well as dynamics of molecular interfaces. The ability to apply SHG to molecular interface studies depends on the ability to abstract quantitative information from the measurable quantities in the actual SHG experiments. In this review, we try to assess recent developments in the SHG experimental methodologies towards quantitative analysis of the nonlinear optical properties of the achiral molecular interfaces with rotational isotropy along the interface normal. These developments include the methodology for orientational analysis of the SHG experimental data, the experimental approaches for more accurate SHG measurements, and a novel treatment of the symmetry properties of the molecular polarizability tensors in association with the experimentally measurable quantities. In the end, the recent developments on the problem of surface versus bulk contribution in SHG surface studies is discussed. These developments can put SHG on a more solid foundation for molecular interface studies, and to pave the way for better understanding and application of SHG surface studies in general.
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Affiliation(s)
- Wen-kai Zhang
- State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, ZhongGuanCun, Beijing, China100080
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33
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Identification of overlapping features in the sum frequency generation vibrational spectra of air/ethanol interface. Chem Phys Lett 2006. [DOI: 10.1016/j.cplett.2006.03.084] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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34
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Gan W, Wu D, Zhang Z, Feng RR, Wang HF. Polarization and experimental configuration analyses of sum frequency generation vibrational spectra, structure, and orientational motion of the air/water interface. J Chem Phys 2006; 124:114705. [PMID: 16555908 DOI: 10.1063/1.2179794] [Citation(s) in RCA: 171] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Here we report a detailed study on spectroscopy, structure, and orientational distribution, as well as orientational motion, of water molecules at the air/water interface, investigated with sum frequency generation vibrational spectroscopy (SFG-VS). Quantitative polarization and experimental configuration analyses of the SFG data in different polarizations with four sets of experimental configurations can shed new light on our present understanding of the air/water interface. Firstly, we concluded that the orientational motion of the interfacial water molecules can only be in a limited angular range, instead of rapidly varying over a broad angular range in the vibrational relaxation time as suggested previously. Secondly, because different vibrational modes of different molecular species at the interface has different symmetry properties, polarization and symmetry analyses of the SFG-VS spectral features can help the assignment of the SFG-VS spectra peaks to different interfacial species. These analyses concluded that the narrow 3693 cm(-1) and broad 3550 cm(-1) peaks belong to C(infinityv) symmetry, while the broad 3250 and 3450 cm(-1) peaks belong to the symmetric stretching modes with C2v symmetry. Thus, the 3693 cm(-1) peak is assigned to the free OH, the 3550 cm(-1) peak is assigned to the singly hydrogen-bonded OH stretching mode, and the 3250 and 3450 cm(-1) peaks are assigned to interfacial water molecules as two hydrogen donors for hydrogen bonding (with C2v symmetry), respectively. Thirdly, analysis of the SFG-VS spectra concluded that the singly hydrogen-bonded water molecules at the air/water interface have their dipole vector directed almost parallel to the interface and is with a very narrow orientational distribution. The doubly hydrogen-bonded donor water molecules have their dipole vector pointing away from the liquid phase.
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Affiliation(s)
- Wei Gan
- State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100080, China
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