1
|
Wang Z, Ju S, Wang Y, Zhang R, Ma L, Song J, Lin K. The isosbestic point in the Raman spectra of the hydration shell. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 317:124413. [PMID: 38728849 DOI: 10.1016/j.saa.2024.124413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 04/16/2024] [Accepted: 05/05/2024] [Indexed: 05/12/2024]
Abstract
Isosbestic point is often observed in a series of spectra, but their interpretation is still controversial, such as whether the continuum model can produce an isosbestic point. In order to answer this question, the Raman spectra of hydration shell with continuous distribution structure in different ionic aqueous solutions were separated by Raman ratio spectra, and an isosbestic point was successfully observed. Our experimental results show that the continuum model can indeed produce the isosbestic point. In order to deepen the understanding of the isosbestic point, we calculate the first moment of the Raman spectra and conduct molecular dynamics (MD) simulations. Both experimental and theoretical findings indicate that elevated temperatures lead to increased disorder among water molecules within the hydration shell.
Collapse
Affiliation(s)
- Zhiqiang Wang
- School of Physics, Xidian University, Xi'an, 710071, P. R. China
| | - Siwen Ju
- School of Physics, Xidian University, Xi'an, 710071, P. R. China
| | - Yuxi Wang
- School of Flexible Electronics (SOFE) & State Key Laboratory of Optoelectronic Materials and Technologies (OEMT), Sun Yat-sen University, Shenzhen, 5181071, P. R. China
| | - Ruiting Zhang
- School of Physics, Xidian University, Xi'an, 710071, P. R. China.
| | - Lin Ma
- School of Physics, Xidian University, Xi'an, 710071, P. R. China
| | - Jiangluqi Song
- School of Physics, Xidian University, Xi'an, 710071, P. R. China
| | - Ke Lin
- School of Physics, Xidian University, Xi'an, 710071, P. R. China; Interdisciplinary Research Center of Smart Sensor, Xidian University, Xi'an, 710071, P. R. China.
| |
Collapse
|
2
|
Tang F, Shi K, Wu X. Exploring the impact of ions on oxygen K-edge X-ray absorption spectroscopy in NaCl solution using the GW-Bethe-Salpeter-equation approach. J Chem Phys 2023; 159:174501. [PMID: 37909453 DOI: 10.1063/5.0167999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 10/13/2023] [Indexed: 11/03/2023] Open
Abstract
X-ray absorption spectroscopy (XAS) is a powerful experimental tool to probe the local structure in materials with the core hole excitations. Here, the oxygen K-edge XAS spectra of the NaCl solution and pure water are computed by using a recently developed GW-Bethe-Salpeter equation approach, based on configurations modeled by path-integral molecular dynamics with the deep-learning technique. The neural network is trained on ab initio data obtained with strongly constrained and appropriately normed density functional theory. The observed changes in the XAS features of the NaCl solution, compared to those of pure water, are in good agreement between experimental and theoretical results. We provided detailed explanations for these spectral changes that occur when NaCl is solvated in pure water. Specifically, the presence of solvating ion pairs leads to localization of electron-hole excitons. Our theoretical XAS results support the theory that the effects of the solvating ions on the H-bond network are mainly confined within the first hydration shell of ions, however beyond the shell the arrangement of water molecules remains to be comparable to that observed in pure water.
Collapse
Affiliation(s)
- Fujie Tang
- Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - Kefeng Shi
- Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - Xifan Wu
- Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA
| |
Collapse
|
3
|
Bhat B, Pahari S, Kwon JSI, Akbulut MES. Stimuli-responsive viscosity modifiers. Adv Colloid Interface Sci 2023; 321:103025. [PMID: 37871381 DOI: 10.1016/j.cis.2023.103025] [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: 04/18/2023] [Revised: 09/01/2023] [Accepted: 10/10/2023] [Indexed: 10/25/2023]
Abstract
Stimuli responsive viscosity modifiers entail an important class of materials which allow for smart material formation utilizing various stimuli for switching such as pH, temperature, light and salinity. They have seen applications in the biomedical space including tissue engineering and drug delivery, wherein stimuli responsive hydrogels and polymeric vessels have been extensively applied. Applications have also been seen in other domains like the energy sector and automobile industry, in technologies such as enhanced oil recovery. The chemistry and microstructural arrangements of the aqueous morphologies of dissolved materials are usually sensitive to the aforementioned stimuli which subsequently results in rheological sensitivity as well. Herein, we overview different structures capable of viscosity modification as well as go over the rheological theory associated with classical systems studied in literature. A detailed analysis allows us to explore correlations between commonly discussed models such as molecular packing parameter, tube reptation and stress relaxation with structural and rheological changes. We then present five primary mechanisms corresponding to stimuli responsive viscosity modification: (i) packing parameter modification via functional group conditioning and (ii) via dynamic bond formation, (iii) mesh formation by interlinking of network nodes, (iv) viscosity modification by chain conformation changes and (v) viscosity modification by particle jamming. We also overview several recent examples from literature that employ the concepts discussed to create novel classes of intriguing stimuli responsive structures and their corresponding rheological properties. Furthermore, we also explore systems that are responsive to multiple stimuli which can provide enhanced functionality and versatility by providing multi-level and precise actuation. Such systems have been used for programmed site-specific drug delivery.
Collapse
Affiliation(s)
- Bhargavi Bhat
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Silabrata Pahari
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Joseph Sang-Il Kwon
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA; Texas A&M Energy Institute, College Station, TX 77843, USA
| | - Mustafa E S Akbulut
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA; Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843, USA; Texas A&M Energy Institute, College Station, TX 77843, USA.
| |
Collapse
|
4
|
Reidelbach M, Bai M, Schneeberger M, Zöllner MS, Kubicek K, Kirchberg H, Bressler C, Thorwart M, Herrmann C. Solvent Dynamics of Aqueous Halides before and after Photoionization. J Phys Chem B 2023; 127:1399-1413. [PMID: 36728132 DOI: 10.1021/acs.jpcb.2c07992] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Electron transfer reactions can be strongly influenced by solvent dynamics. We study the photoionization of halides in water as a model system for such reactions. There are no internal nuclear degrees of freedom in the solute, allowing the dynamics of the solvent to be uniquely identified. We simulate the equilibrium solvent dynamics for Cl-, Br-, I-, and their respective neutral atoms in water, comparing quantum mechanical/molecular mechanical (QM/MM) and classical molecular dynamics (MD) methods. On the basis of the obtained configurations, we calculate the extended X-ray absorption fine structure (EXAFS) spectra rigorously based on the MD snapshots and compare them in detail with other theoretical and experimental results available in the literature. We find our EXAFS spectra based on QM/MM MD simulations in good agreement with their experimental counterparts for the ions. Classical MD simulations for the ions lead to EXAFS spectra that agree equally well with the experiment when it comes to the oscillatory period of the signal, even though they differ from the QM/MM radial distribution functions extracted from the MD. The amplitude is, however, considerably overestimated. This suggests that to judge the reliability of theoretical simulation methods or to elucidate fine details of the atomistic dynamics of the solvent based on EXAFS spectra, the amplitude as well as the oscillatory period need to be considered. If simulations fail qualitatively, as does the classical MD for the aqueous neutral halogen atoms, the resulting EXAFS will also be strongly affected in both oscillatory period and amplitude. The good reliability of QM/MM-based EXAFS simulations, together with clear qualitative differences in the EXAFS spectra found between halides and their atomic counterparts, suggests that a combined theory and experimental EXAFS approach is suitable for elucidating the nonequilibrium solvent dynamics in the photoionization of halides and possibly also for electron transfer reactions in more complex systems.
Collapse
Affiliation(s)
- Marco Reidelbach
- Department of Chemistry, Universität Hamburg, Harbor Bldg. 610, Luruper Chaussee 149, 22761Hamburg, Germany.,The Hamburg Centre of Ultrafast Imaging, Luruper Chaussee 149, 22761Hamburg, Germany
| | - Mei Bai
- The Hamburg Centre of Ultrafast Imaging, Luruper Chaussee 149, 22761Hamburg, Germany.,I. Institut für Theoretische Physik, Universität Hamburg, Notkestr. 9, 22607Hamburg, Germany
| | - Michaela Schneeberger
- Department of Chemistry, Universität Hamburg, Harbor Bldg. 610, Luruper Chaussee 149, 22761Hamburg, Germany.,The Hamburg Centre of Ultrafast Imaging, Luruper Chaussee 149, 22761Hamburg, Germany
| | - Martin Sebastian Zöllner
- Department of Chemistry, Universität Hamburg, Harbor Bldg. 610, Luruper Chaussee 149, 22761Hamburg, Germany.,The Hamburg Centre of Ultrafast Imaging, Luruper Chaussee 149, 22761Hamburg, Germany
| | - Katharina Kubicek
- The Hamburg Centre of Ultrafast Imaging, Luruper Chaussee 149, 22761Hamburg, Germany.,Department of Physics, Universität Hamburg, Notkestr. 85, 22607Hamburg, Germany.,European XFEL, Holzkoppel 4, 22869Schenefeld, Germany
| | - Henning Kirchberg
- The Hamburg Centre of Ultrafast Imaging, Luruper Chaussee 149, 22761Hamburg, Germany.,I. Institut für Theoretische Physik, Universität Hamburg, Notkestr. 9, 22607Hamburg, Germany
| | - Christian Bressler
- The Hamburg Centre of Ultrafast Imaging, Luruper Chaussee 149, 22761Hamburg, Germany.,Department of Physics, Universität Hamburg, Notkestr. 85, 22607Hamburg, Germany.,European XFEL, Holzkoppel 4, 22869Schenefeld, Germany
| | - Michael Thorwart
- The Hamburg Centre of Ultrafast Imaging, Luruper Chaussee 149, 22761Hamburg, Germany.,I. Institut für Theoretische Physik, Universität Hamburg, Notkestr. 9, 22607Hamburg, Germany
| | - Carmen Herrmann
- Department of Chemistry, Universität Hamburg, Harbor Bldg. 610, Luruper Chaussee 149, 22761Hamburg, Germany.,The Hamburg Centre of Ultrafast Imaging, Luruper Chaussee 149, 22761Hamburg, Germany
| |
Collapse
|
5
|
Yang H, Gladich I, Boucly A, Artiglia L, Ammann M. Orcinol and resorcinol induce local ordering of water molecules near the liquid-vapor interface. ENVIRONMENTAL SCIENCE: ATMOSPHERES 2022; 2:1277-1291. [PMID: 36561553 PMCID: PMC9648629 DOI: 10.1039/d2ea00015f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 08/17/2022] [Indexed: 12/25/2022]
Abstract
Resorcinol and orcinol are simple members of the family of phenolic compounds present in particulate matter in the atmosphere; they are amphiphilic in nature and thus surface active in aqueous solution. Here, we used X-ray photoelectron spectroscopy to probe the concentration of resorcinol (benzene-1,3-diol) and orcinol (5-methylbenzene-1,3-diol) at the liquid-vapor interface of aqueous solutions. Qualitatively consistent surface propensity and preferential orientation was obtained by molecular dynamics simulations. Auger electron yield near-edge X-ray absorption fine structure (NEXAFS) spectroscopy was used to probe the hydrogen bonding (HB) structure, indicating that the local structure of water molecules near the surface of the resorcinol and orcinol solutions tends towards a larger fraction of tetrahedrally coordinated molecules than observed at the liquid-vapor interface of pure water. The order parameter obtained from the molecular dynamics simulations confirm these observations. This effect is being discussed in terms of the formation of an ordered structure of these molecules at the surface leading to patterns of hydrated OH groups with distances among them that are relatively close to those in ice. These results suggest that the self-assembly of phenolic species at the aqueous solution-air interface could induce freezing similar to the case of fatty alcohol monolayers and, thus, be of relevance for ice nucleation in the atmosphere. We also attempted at looking at the changes of the O 1b1, 3a2 and 1b2 molecular orbitals of liquid water, which are known to be sensitive to the HB structure as well, in response to the presence of resorcinol and orcinol. However, these changes remained negligible within uncertainty for both experimentally obtained valence spectra and theoretically calculated density of states.
Collapse
Affiliation(s)
- Huanyu Yang
- Laboratory of Environmental Chemistry, Paul Scherrer Institut5232 VilligenSwitzerland,Institute of Atmospheric and Climate Science, ETH Zürich8092 ZürichSwitzerland
| | - Ivan Gladich
- Qatar Environment & Energy Research Institute, Hamad Bin Khalifa UniversityP.O. Box 34110DohaQatar
| | - Anthony Boucly
- Laboratory of Environmental Chemistry, Paul Scherrer Institut5232 VilligenSwitzerland,Electrochemistry Laboratory, Paul Scherrer Institut5232 VilligenSwitzerland
| | - Luca Artiglia
- Laboratory of Environmental Chemistry, Paul Scherrer Institut5232 VilligenSwitzerland,Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institut5232 VilligenSwitzerland
| | - Markus Ammann
- Laboratory of Environmental Chemistry, Paul Scherrer Institut5232 VilligenSwitzerland
| |
Collapse
|
6
|
Caruso A, Zhu X, Fulton JL, Paesani F. Accurate Modeling of Bromide and Iodide Hydration with Data-Driven Many-Body Potentials. J Phys Chem B 2022; 126:8266-8278. [PMID: 36214512 DOI: 10.1021/acs.jpcb.2c04698] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Ion-water interactions play a central role in determining the properties of aqueous systems in a wide range of environments. However, a quantitative understanding of how the hydration properties of ions evolve from small aqueous clusters to bulk solutions and interfaces remains elusive. Here, we introduce the second generation of data-driven many-body energy (MB-nrg) potential energy functions (PEFs) representing bromide-water and iodide-water interactions. The MB-nrg PEFs use permutationally invariant polynomials to reproduce two-body and three-body energies calculated at the coupled cluster level of theory, and implicitly represent all higher-body energies using classical many-body polarization. A systematic analysis of the hydration structure of small Br-(H2O)n and I-(H2O)n clusters demonstrates that the MB-nrg PEFs predict interaction energies in quantitative agreement with "gold standard" coupled cluster reference values. Importantly, when used in molecular dynamics simulations carried out in the isothermal-isobaric ensemble for single bromide and iodide ions in liquid water, the MB-nrg PEFs predict extended X-ray absorption fine structure (EXAFS) spectra that accurately reproduce the experimental spectra, which thus allows for characterizing the hydration structure of the two ions with a high level of confidence.
Collapse
Affiliation(s)
- Alessandro Caruso
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California92093, United States
| | - Xuanyu Zhu
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California92093, United States
| | - John L Fulton
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington99352, United States
| | - Francesco Paesani
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California92093, United States.,Materials Science and Engineering, University of California San Diego, La Jolla, California92093, United States.,San Diego Supercomputer Center, University of California San Diego, La Jolla, California92093, United States
| |
Collapse
|
7
|
Sahle CJ, de Clermont Gallerande E, Niskanen J, Longo A, Elbers M, Schroer MA, Sternemann C, Jahn S. Hydration in aqueous NaCl. Phys Chem Chem Phys 2022; 24:16075-16084. [PMID: 35735165 DOI: 10.1039/d2cp00162d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Atomistic details about the hydration of ions in aqueous solutions are still debated due to the disordered and statistical nature of the hydration process. However, many processes from biology, physical chemistry to materials sciences rely on the complex interplay between solute and solvent. Oxygen K-edge X-ray excitation spectra provide a sensitive probe of the local atomic and electronic surrounding of the excited sites. We used ab initio molecular dynamics simulations together with extensive spectrum calculations to relate the features found in experimental oxygen K-edge spectra of a concentration series of aqueous NaCl with the induced structural changes upon solvation of the salt and distill the spectral fingerprints of the first hydration shells around the Na+- and Cl--ions. By this combined experimental and theoretical approach, we find the strongest spectral changes to indeed result from the first hydration shells of both ions and relate the observed shift of spectral weight from the post- to the main-edge to the origin of the post-edge as a shape resonance.
Collapse
Affiliation(s)
- Christoph J Sahle
- ESRF, The European Synchrotron, 71 Avenue des Martyrs, CS40220, FR-38043 Grenoble Cedex 9, France.
| | | | - Johannes Niskanen
- Department of Physics and Astronomy, University of Turku, FI-20014 Turun Yliopisto, Finland
| | - Alessandro Longo
- ESRF, The European Synchrotron, 71 Avenue des Martyrs, CS40220, FR-38043 Grenoble Cedex 9, France.
| | - Mirko Elbers
- Fakultät Physik/DELTA, Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - Martin A Schroer
- Nanoparticle Process Technology, University of Duisburg-Essen, D-47057 Duisburg, Germany
| | - Christian Sternemann
- Fakultät Physik/DELTA, Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - Sandro Jahn
- Institute of Geology and Mineralogy, University of Cologne, D-50674 Köln, Germany
| |
Collapse
|
8
|
Xiao Y, Liu J, Lin J, Yu H, Pang R, Wu D, Tian Z. Adsorption and Co‐adsorption of Chlorine and Water‐Chlorine Complexes on Au(111) Surfaces: First‐Principles DFT Study. ChemElectroChem 2021. [DOI: 10.1002/celc.202100583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yuan‐Hui Xiao
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry College of Chemistry and Chemical Engineering Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) Xiamen University Xiamen 361005 Fujian China
| | - Jia Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry College of Chemistry and Chemical Engineering Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) Xiamen University Xiamen 361005 Fujian China
| | - Jian‐De Lin
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry College of Chemistry and Chemical Engineering Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) Xiamen University Xiamen 361005 Fujian China
| | - Huan‐Huan Yu
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry College of Chemistry and Chemical Engineering Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) Xiamen University Xiamen 361005 Fujian China
| | - Ran Pang
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry College of Chemistry and Chemical Engineering Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) Xiamen University Xiamen 361005 Fujian China
| | - De‐Yin Wu
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry College of Chemistry and Chemical Engineering Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) Xiamen University Xiamen 361005 Fujian China
| | - Zhong‐Qun Tian
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry College of Chemistry and Chemical Engineering Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) Xiamen University Xiamen 361005 Fujian China
| |
Collapse
|
9
|
Caruso A, Paesani F. Data-driven many-body models enable a quantitative description of chloride hydration from clusters to bulk. J Chem Phys 2021; 155:064502. [PMID: 34391363 DOI: 10.1063/5.0059445] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
We present a new data-driven potential energy function (PEF) describing chloride-water interactions, which is developed within the many-body-energy (MB-nrg) theoretical framework. Besides quantitatively reproducing low-order many-body energy contributions, the new MB-nrg PEF is able to correctly predict the interaction energies of small chloride-water clusters calculated at the coupled cluster level of theory. Importantly, classical and quantum molecular dynamics simulations of a single chloride ion in water demonstrate that the new MB-nrg PEF predicts x-ray spectra in close agreement with the experimental results. Comparisons with an popular empirical model and a polarizable PEF emphasize the importance of an accurate representation of short-range many-body effect while demonstrating that pairwise additive representations of chloride-water and water-water interactions are inadequate for correctly representing the hydration structure of chloride in both gas-phase clusters and solution. We believe that the analyses presented in this study provide additional evidence for the accuracy and predictive ability of the MB-nrg PEFs, which can then enable more realistic simulations of ionic aqueous systems in different environments.
Collapse
Affiliation(s)
- Alessandro Caruso
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California 92093, USA
| | - Francesco Paesani
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California 92093, USA
| |
Collapse
|
10
|
Han B, Isborn CM, Shi L. Determining Partial Atomic Charges for Liquid Water: Assessing Electronic Structure and Charge Models. J Chem Theory Comput 2021; 17:889-901. [PMID: 33405925 DOI: 10.1021/acs.jctc.0c01102] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Partial atomic charges provide an intuitive and efficient way to describe the charge distribution and the resulting intermolecular electrostatic interactions in liquid water. Many charge models exist and it is unclear which model provides the best assignment of partial atomic charges in response to the local molecular environment. In this work, we systematically scrutinize various electronic structure methods and charge models (Mulliken, natural population analysis, CHelpG, RESP, Hirshfeld, Iterative Hirshfeld, and Bader) by evaluating their performance in predicting the dipole moments of isolated water, water clusters, and liquid water as well as charge transfer in the water dimer and liquid water. Although none of the seven charge models is capable of fully capturing the dipole moment increase from isolated water (1.85 D) to liquid water (about 2.9 D), the Iterative Hirshfeld method performs best for liquid water, reproducing its experimental average molecular dipole moment, yielding a reasonable amount of intermolecular charge transfer, and showing modest sensitivity to the local water environment. The performance of the charge model is dependent on the choice of the density functional and the quantum treatment of the environment. The computed molecular dipole moment of water generally increases with the percentage of the exact Hartree-Fock exchange in the functional, whereas the amount of charge transfer between molecules decreases. For liquid water, including two full solvation shells of surrounding water molecules (within about 5.5 Å of the central water) in the quantum chemical calculation converges the charges of the central water molecule. Our final pragmatic quantum chemical charge-assigning protocol for liquid water is the Iterative Hirshfeld method with M06-HF/aug-cc-pVDZ and a quantum region cutoff radius of 5.5 Å.
Collapse
Affiliation(s)
- Bowen Han
- Chemistry and Chemical Biology, University of California Merced, Merced, California 95343, United States
| | - Christine M Isborn
- Chemistry and Chemical Biology, University of California Merced, Merced, California 95343, United States
| | - Liang Shi
- Chemistry and Chemical Biology, University of California Merced, Merced, California 95343, United States
| |
Collapse
|
11
|
Ding Y. First principles molecular dynamics investigation on the water-ion interaction: A case of diluted CsI solution. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137996] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
12
|
|
13
|
Varade SR, Ghosh P. Foaming in aqueous solutions of zwitterionic surfactant in presence of monovalent salts: The specific ion effect. CHEM ENG COMMUN 2019. [DOI: 10.1080/00986445.2019.1647178] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Shailesh R. Varade
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Pallab Ghosh
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| |
Collapse
|
14
|
Ren J, Achilleos DS, Golnak R, Yuzawa H, Xiao J, Nagasaka M, Reisner E, Petit T. Uncovering the Charge Transfer between Carbon Dots and Water by In Situ Soft X-ray Absorption Spectroscopy. J Phys Chem Lett 2019; 10:3843-3848. [PMID: 31246468 DOI: 10.1021/acs.jpclett.9b01800] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Carbon dots (CDs) exhibit outstanding physicochemical properties that render them excellent materials for various applications, often occurring in an aqueous environment, such as light harvesting and fluorescence bioimaging. Here we characterize the electronic structures of CDs and water molecules in aqueous dispersions using in situ X-ray absorption spectroscopy. Three types of CDs with different core structures (amorphous vs graphitic) and compositions (undoped vs nitrogen-doped) were investigated. Depending on the CD core structure, different ionic currents generated upon X-ray irradiation of the CD dispersions at the carbon K-edge were detected, which are interpreted in terms of different charge transfer to the surrounding solvent molecules. The hydrogen bonding networks of water molecules upon interaction with the different CDs were also probed at the oxygen K-edge. Both core graphitization and nitrogen doping were found to endow the CDs with enhanced electron transfer and hydrogen bonding capabilities with the surrounding water molecules.
Collapse
Affiliation(s)
- Jian Ren
- Institute for Nanospectroscopy , Helmholtz-Zentrum Berlin für Materialien und Energie GmbH (HZB) , Albert-Einstein-Straße 15 , 12489 Berlin , Germany
- Department of Physics , Freie Universität Berlin , Arnimallee 14 , 14195 Berlin , Germany
| | - Demetra S Achilleos
- Christian Doppler Laboratory for Sustainable SynGas Chemistry, Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , United Kingdom
| | - Ronny Golnak
- Department of Highly Sensitive X-ray Spectroscopy , Helmholtz-Zentrum Berlin für Materialien und Energie GmbH (HZB) , Albert-Einstein-Straße 15 , 12489 Berlin , Germany
| | - Hayato Yuzawa
- Institute for Molecular Science, Myodaiji , Okazaki 444-8585 , Japan
| | - Jie Xiao
- Department of Highly Sensitive X-ray Spectroscopy , Helmholtz-Zentrum Berlin für Materialien und Energie GmbH (HZB) , Albert-Einstein-Straße 15 , 12489 Berlin , Germany
| | - Masanari Nagasaka
- Institute for Molecular Science, Myodaiji , Okazaki 444-8585 , Japan
| | - Erwin Reisner
- Christian Doppler Laboratory for Sustainable SynGas Chemistry, Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , United Kingdom
| | - Tristan Petit
- Institute for Nanospectroscopy , Helmholtz-Zentrum Berlin für Materialien und Energie GmbH (HZB) , Albert-Einstein-Straße 15 , 12489 Berlin , Germany
| |
Collapse
|
15
|
Shedge SV, Zuehlsdorff TJ, Servis MJ, Clark AE, Isborn CM. Effect of Ions on the Optical Absorption Spectra of Aqueously Solvated Chromophores. J Phys Chem A 2019; 123:6175-6184. [DOI: 10.1021/acs.jpca.9b03163] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Sapana V. Shedge
- Chemistry and Chemical Biology, University of California Merced, Merced, California 95343, United States
| | - Tim J. Zuehlsdorff
- Chemistry and Chemical Biology, University of California Merced, Merced, California 95343, United States
| | - Michael J. Servis
- Department of Chemistry and the Material Science and Engineering Program, Washington State University, Pullman, Washington 99164, United States
| | - Aurora E. Clark
- Department of Chemistry and the Material Science and Engineering Program, Washington State University, Pullman, Washington 99164, United States
- Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington 99164, United States
| | - Christine M. Isborn
- Chemistry and Chemical Biology, University of California Merced, Merced, California 95343, United States
| |
Collapse
|
16
|
Ding Y. Ab initio molecular dynamics investigation on NaCl solution at diluted concentration. COMPUT THEOR CHEM 2019. [DOI: 10.1016/j.comptc.2019.02.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
17
|
How Does Vibrational Excitation Affect the X-Ray Absorption Spectra of Monohydrated Halide and Alkali Metal Clusters? ADVANCES IN QUANTUM CHEMISTRY 2019. [DOI: 10.1016/bs.aiq.2018.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
18
|
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
| |
Collapse
|
19
|
Correlation between Computed Ion Hydration Properties and Experimental Values of Sugar Transfer through Nanofiltration and Ion Exchange Membranes in Presence of Electrolyte. COMPUTATION 2018. [DOI: 10.3390/computation6030042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The widespread use of nanofiltration and electrodialysis membrane processes is slowed down by the difficulties in predicting the membrane performances for treating streams of variable ionic compositions. Correlations between ion hydration properties and solute transfer can help to overcome this drawback. This research aims to investigate the correlation between theoretically evaluated hydration properties of major ions in solution and experimental values of neutral organic solute fluxes. In particular, ion hydration energies, coordination and hydration number and the average ion-water distance of Na+, Ca2+, Mg2+, Cl− and SO42− were calculated at a high quantum mechanics level and compared with experimental sugar fluxes previously reported. The properties computed by simple and not computationally expensive models were validated with information from the literature. This work discusses the correlation between the hydration energies of ions and fluxes of three saccharides, measured through nanofiltration and ionic-exchange membranes. In nanofiltration, the sugar flux increases with the presence of ions of increasing hydration energy. Instead, inverse linear correlations were found between the hydration energy and the sugar fluxes through ion exchange membranes. Finally, an empirical model is proposed for a rough evaluation of the variation in sugar fluxes as function of hydration energy for the ion exchange membranes in diffusion experiments.
Collapse
|
20
|
Sehnem AL, Niether D, Wiegand S, Figueiredo Neto AM. Thermodiffusion of Monovalent Organic Salts in Water. J Phys Chem B 2018; 122:4093-4100. [DOI: 10.1021/acs.jpcb.8b01152] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Doreen Niether
- ICS-3 Soft Condensed Matter, Forschungszentrum Jülich GmbH, D-52428 Jülich, Germany
| | - Simone Wiegand
- ICS-3 Soft Condensed Matter, Forschungszentrum Jülich GmbH, D-52428 Jülich, Germany
- Department für Chemie - Physikalische Chemie, Universität zu Köln, 50939 Cologne, Germany
| | | |
Collapse
|
21
|
Remsing RC, Duignan TT, Baer MD, Schenter GK, Mundy CJ, Weeks JD. Water Lone Pair Delocalization in Classical and Quantum Descriptions of the Hydration of Model Ions. J Phys Chem B 2018; 122:3519-3527. [DOI: 10.1021/acs.jpcb.7b10722] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Richard C. Remsing
- Institute for Computational Molecular Science, Temple University, Philadelphia, Pennsylvania 19122, United States
| | - Timothy T. Duignan
- Chemical and Materials Science Division, Pacific Northwest National Laboratory, Richland, Washington, United States
| | - Marcel D. Baer
- Chemical and Materials Science Division, Pacific Northwest National Laboratory, Richland, Washington, United States
| | - Gregory K. Schenter
- Chemical and Materials Science Division, Pacific Northwest National Laboratory, Richland, Washington, United States
| | - Christopher J. Mundy
- Chemical and Materials Science Division, Pacific Northwest National Laboratory, Richland, Washington, United States
- Affiliate Professor, Department of Chemical Engineering, University of Washington, Seattle, Washington, United States
| | - John D. Weeks
- Institute for Physical Science and Technology and Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| |
Collapse
|
22
|
Roy S, Galib M, Schenter GK, Mundy CJ. On the relation between Marcus theory and ultrafast spectroscopy of solvation kinetics. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2017.12.041] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
23
|
Smith JW, Saykally RJ. Soft X-ray Absorption Spectroscopy of Liquids and Solutions. Chem Rev 2017; 117:13909-13934. [DOI: 10.1021/acs.chemrev.7b00213] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Jacob W. Smith
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Lab, Berkeley, California 94720, United States
| | - Richard J. Saykally
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Lab, Berkeley, California 94720, United States
| |
Collapse
|
24
|
Yin Z, Inhester L, Thekku Veedu S, Quevedo W, Pietzsch A, Wernet P, Groenhof G, Föhlisch A, Grubmüller H, Techert S. Cationic and Anionic Impact on the Electronic Structure of Liquid Water. J Phys Chem Lett 2017; 8:3759-3764. [PMID: 28742347 DOI: 10.1021/acs.jpclett.7b01392] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Hydration shells around ions are crucial for many fundamental biological and chemical processes. Their local physicochemical properties are quite different from those of bulk water and hard to probe experimentally. We address this problem by combining soft X-ray spectroscopy using a liquid jet and molecular dynamics (MD) simulations together with ab initio electronic structure calculations to elucidate the water-ion interaction in a MgCl2 solution at the molecular level. Our results reveal that salt ions mainly affect the electronic properties of water molecules in close vicinity and that the oxygen K-edge X-ray emission spectrum of water molecules in the first solvation shell differs significantly from that of bulk water. Ion-specific effects are identified by fingerprint features in the water X-ray emission spectra. While Mg2+ ions cause a bathochromic shift of the water lone pair orbital, the 3p orbital of the Cl- ions causes an additional peak in the water emission spectrum at around 528 eV.
Collapse
Affiliation(s)
- Zhong Yin
- Deutsches Elektronen-Synchrotron DESY , Notkestrasse 85, 22607 Hamburg, Germany
- Max Planck Institute for Biophysical Chemistry , Am Fassberg 11, 37077 Göttingen, Germany
| | - Ludger Inhester
- Deutsches Elektronen-Synchrotron DESY , Notkestrasse 85, 22607 Hamburg, Germany
- Center for Free-Electron Laser Science , Notkestrasse 85, 22607 Hamburg, Germany
| | - Sreevidya Thekku Veedu
- Deutsches Elektronen-Synchrotron DESY , Notkestrasse 85, 22607 Hamburg, Germany
- Max Planck Institute for Biophysical Chemistry , Am Fassberg 11, 37077 Göttingen, Germany
| | - Wilson Quevedo
- Helmholtz-Zentrum Berlin GmbH , Albert-Einstein-Strasse 15, 12489 Berlin, Germany
| | - Annette Pietzsch
- Helmholtz-Zentrum Berlin GmbH , Albert-Einstein-Strasse 15, 12489 Berlin, Germany
| | - Philippe Wernet
- Helmholtz-Zentrum Berlin GmbH , Albert-Einstein-Strasse 15, 12489 Berlin, Germany
| | - Gerrit Groenhof
- University of Jyväskylä , P.O. Box 35, 40014 Jyväskylä, Finland
| | - Alexander Föhlisch
- Helmholtz-Zentrum Berlin GmbH , Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- University of Potsdam , Karl-Liebknecht-Strasse 24-25, 14476 Potsdam, Germany
| | - Helmut Grubmüller
- Max Planck Institute for Biophysical Chemistry , Am Fassberg 11, 37077 Göttingen, Germany
| | - Simone Techert
- Deutsches Elektronen-Synchrotron DESY , Notkestrasse 85, 22607 Hamburg, Germany
- Max Planck Institute for Biophysical Chemistry , Am Fassberg 11, 37077 Göttingen, Germany
- University of Göttingen , Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
| |
Collapse
|
25
|
Kostko O, Xu B, Jacobs MI, Ahmed M. Soft X-ray spectroscopy of nanoparticles by velocity map imaging. J Chem Phys 2017; 147:013931. [DOI: 10.1063/1.4982822] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- O. Kostko
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - B. Xu
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - M. I. Jacobs
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Department of Chemistry, University of California, Berkeley, California 94720, USA
| | - M. Ahmed
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| |
Collapse
|
26
|
Zhang X, Zhou Y, Gong Y, Huang Y, Sun C. Resolving H(Cl, Br, I) capabilities of transforming solution hydrogen-bond and surface-stress. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.04.060] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
27
|
Wei Q, Zhou D, Bian H. Negligible cation effect on the vibrational relaxation dynamics of water molecules in NaClO4 and LiClO4 aqueous electrolyte solutions. RSC Adv 2017. [DOI: 10.1039/c7ra08840j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Negligible cation effects on the vibrational relaxation dynamics of water molecules in NaClO4 and LiClO4 aqueous solutions.
Collapse
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
| |
Collapse
|
28
|
Jeyachandran YL, Meyer F, Benkert A, Bär M, Blum M, Yang W, Reinert F, Heske C, Weinhardt L, Zharnikov M. Investigation of the Ionic Hydration in Aqueous Salt Solutions by Soft X-ray Emission Spectroscopy. J Phys Chem B 2016; 120:7687-95. [PMID: 27442708 DOI: 10.1021/acs.jpcb.6b03952] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Understanding the molecular structure of the hydration shells and their impact on the hydrogen bond (HB) network of water in aqueous salt solutions is a fundamentally important and technically relevant question. In the present work, such hydration effects were studied for a series of representative salt solutions (NaCl, KCl, CaCl2, MgCl2, and KBr) by soft X-ray emission spectroscopy (XES) and resonant inelastic soft X-ray scattering (RIXS). The oxygen K-edge XES spectra could be described with three components, attributed to initial state HB configurations in pure water, water molecules that have undergone an ultrafast dissociation initiated by the X-ray excitation, and water molecules in contact with salt ions. The behavior of the individual components, as well as the spectral shape of the latter component, has been analyzed in detail. In view of the role of ions in such effects as protein denaturation (i.e., the Hofmeister series), we discuss the ion-specific nature of the hydration shells and find that the results point to a predominant role of anions as compared to cations. Furthermore, we observe a concentration-dependent suppression of ultrafast dissociation in all salt solutions, associated with a significant distortion of intact HB configurations of water molecules facilitating such a dissociation.
Collapse
Affiliation(s)
- Y L Jeyachandran
- Angewandte Physikalische Chemie, Universität Heidelberg , Im Neuenheimer Feld 253, 69120 Heidelberg, Germany
| | - F Meyer
- Experimentelle Physik VII, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - A Benkert
- Experimentelle Physik VII, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany.,Institute for Photon Science and Synchrotron Radiation (IPS), Karlsruhe Institute of Technology (KIT) , Hermann-v.-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - M Bär
- Renewable Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Hahn-Meitner-Platz 1, 14109 Berlin, Germany.,Institute für Physik und Chemie, Brandenburgische Technische Universität Cottbus-Senftenberg , Platz der Deutschen Einheit 1, 03046 Cottbus, Germany.,Department of Chemistry and Biochemistry, University of Nevada, Las Vegas (UNLV) , 4505 Maryland Parkway, Las Vegas, Nevada 89154-4003, United States
| | - M Blum
- Department of Chemistry and Biochemistry, University of Nevada, Las Vegas (UNLV) , 4505 Maryland Parkway, Las Vegas, Nevada 89154-4003, United States
| | - W Yang
- Advanced Light Source (ALS), Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, California 94720, United States
| | - F Reinert
- Experimentelle Physik VII, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - C Heske
- Institute for Photon Science and Synchrotron Radiation (IPS), Karlsruhe Institute of Technology (KIT) , Hermann-v.-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.,Department of Chemistry and Biochemistry, University of Nevada, Las Vegas (UNLV) , 4505 Maryland Parkway, Las Vegas, Nevada 89154-4003, United States.,Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT) , Engesserstrasse 18/20, 76028 Karlsruhe, Germany
| | - L Weinhardt
- Institute for Photon Science and Synchrotron Radiation (IPS), Karlsruhe Institute of Technology (KIT) , Hermann-v.-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.,Department of Chemistry and Biochemistry, University of Nevada, Las Vegas (UNLV) , 4505 Maryland Parkway, Las Vegas, Nevada 89154-4003, United States.,Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT) , Engesserstrasse 18/20, 76028 Karlsruhe, Germany
| | - M Zharnikov
- Angewandte Physikalische Chemie, Universität Heidelberg , Im Neuenheimer Feld 253, 69120 Heidelberg, Germany
| |
Collapse
|
29
|
Fransson T, Harada Y, Kosugi N, Besley NA, Winter B, Rehr JJ, Pettersson LGM, Nilsson A. X-ray and Electron Spectroscopy of Water. Chem Rev 2016; 116:7551-69. [PMID: 27244473 DOI: 10.1021/acs.chemrev.5b00672] [Citation(s) in RCA: 113] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Here we present an overview of recent developments of X-ray and electron spectroscopy to probe water at different temperatures. Photon-induced ionization followed by detection of electrons from either the O 1s level or the valence band is the basis of photoelectron spectroscopy. Excitation between the O 1s and the unoccupied states or occupied states is utilized in X-ray absorption and X-ray emission spectroscopies. These techniques probe the electronic structure of the liquid phase and show sensitivity to the local hydrogen-bonding structure. Both experimental aspects related to the measurements and theoretical simulations to assist in the interpretation are discussed in detail. Different model systems are presented such as the different bulk phases of ice and various adsorbed monolayer structures on metal surfaces.
Collapse
Affiliation(s)
- Thomas Fransson
- Department of Physics, Chemistry and Biology, Linköping University , S-581 83 Linköping, Sweden
| | - Yoshihisa Harada
- Institute for Solid State Physics (ISSP), The University of Tokyo , Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
| | - Nobuhiro Kosugi
- Institute for Molecular Science , Myodaiji, Okazaki 444-8585, Japan
| | - Nicholas A Besley
- Department of Physical and Theoretical Chemistry, School of Chemistry, The University of Nottingham , University Park, Nottingham NG7 2RD, United Kingdom
| | - Bernd Winter
- Institute of Methods for Material Development, Helmholtz Center Berlin , Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
| | - John J Rehr
- Department of Physics, University of Washington , Seattle, Washington 98195, United States
| | - Lars G M Pettersson
- Department of Physics, AlbaNova University Center, Stockholm University , S-106 91 Stockholm, Sweden
| | - Anders Nilsson
- Department of Physics, AlbaNova University Center, Stockholm University , S-106 91 Stockholm, Sweden
| |
Collapse
|
30
|
Affiliation(s)
- Roman Shevchuk
- Department
for Mathematics
and Computer Science, Freie Universität Berlin, Arnimallee 6, 14195 Berlin, Germany
- Institute
for Microbiology
and Genetics, Georg-August-University Göttingen, Justus-von-Liebig-Weg 11, 37077 Göttingen, Germany
| |
Collapse
|
31
|
Shahid M, Fan C, Pashley RM. Insight into the bubble column evaporator and its applications. INT REV PHYS CHEM 2016. [DOI: 10.1080/0144235x.2016.1147144] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
32
|
Besemer M, Bloemenkamp R, Ariese F, Manen HJV. Identification of Multiple Water–Iodide Species in Concentrated NaI Solutions Based on the Raman Bending Vibration of Water. J Phys Chem A 2016; 120:709-14. [DOI: 10.1021/acs.jpca.5b10102] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Matthieu Besemer
- LaserLaB VU University, De Boelelaan
1081, 1081 HV Amsterdam, The Netherlands
- Supply Chain, Research & Development, Strategic Research Group Measurement & Analytical Science, AkzoNobel, Zutphenseweg 10, 7418 AJ Deventer, The Netherlands
- TI-COAST, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Rob Bloemenkamp
- Supply Chain, Research & Development, Strategic Research Group Measurement & Analytical Science, AkzoNobel, Zutphenseweg 10, 7418 AJ Deventer, The Netherlands
| | - Freek Ariese
- LaserLaB VU University, De Boelelaan
1081, 1081 HV Amsterdam, The Netherlands
| | - Henk-Jan van Manen
- Supply Chain, Research & Development, Strategic Research Group Measurement & Analytical Science, AkzoNobel, Zutphenseweg 10, 7418 AJ Deventer, The Netherlands
| |
Collapse
|
33
|
Zhao H. Protein Stabilization and Enzyme Activation in Ionic Liquids: Specific Ion Effects. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (OXFORD, OXFORDSHIRE : 1986) 2016; 91:25-50. [PMID: 26949281 PMCID: PMC4777319 DOI: 10.1002/jctb.4837] [Citation(s) in RCA: 186] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 10/12/2015] [Indexed: 05/08/2023]
Abstract
There are still debates on whether the hydration of ions perturbs the water structure, and what is the degree of such disturbance; therefore, the origin of Hofmeister effect on protein stabilization continues being questioned. For this reason, it is suggested to use the 'specific ion effect' instead of other misleading terms such as Hofmeister effect, Hofmeister series, lyotropic effect, and lyotropic series. In this review, we firstly discuss the controversial aspect of inorganic ion effects on water structures, and several possible contributors to the specific ion effect of protein stability. Due to recent overwhelming attraction of ionic liquids (ILs) as benign solvents in many enzymatic reactions, we further evaluate the structural properties and molecular-level interactions in neat ILs and their aqueous solutions. Next, we systematically compare the specific ion effects of ILs on enzyme stability and activity, and conclude that (a) the specificity of many enzymatic systems in diluted aqueous IL solutions is roughly in line with the traditional Hofmeister series albeit some exceptions; (b) however, the specificity follows a different track in concentrated or neat ILs because other factors (such as hydrogen-bond basicity, nucelophilicity, and hydrophobicity, etc) are playing leading roles. In addition, we demonstrate some examples of biocatalytic reactions in IL systems that are guided by the empirical specificity rule.
Collapse
Affiliation(s)
- Hua Zhao
- Department of Chemistry and Forensic Science, Savannah State University, Savannah, GA 31404, USA
| |
Collapse
|
34
|
Vila Verde A, Santer M, Lipowsky R. Solvent-shared pairs of densely charged ions induce intense but short-range supra-additive slowdown of water rotation. Phys Chem Chem Phys 2016; 18:1918-30. [DOI: 10.1039/c5cp05726d] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Magnesium and sulfate ions in solvent-shared (SIP) ion pair configuration supra-additively slowdown the rotation of water molecules between them; water molecules around solvent-separated (2SIP) ion pairs show only additive slowdown.
Collapse
Affiliation(s)
- Ana Vila Verde
- Max Planck Institute of Colloids and Interfaces
- Theory and Bio-Systems Department
- 14424 Potsdam
- Germany
| | - Mark Santer
- Max Planck Institute of Colloids and Interfaces
- Theory and Bio-Systems Department
- 14424 Potsdam
- Germany
| | - Reinhard Lipowsky
- Max Planck Institute of Colloids and Interfaces
- Theory and Bio-Systems Department
- 14424 Potsdam
- Germany
| |
Collapse
|
35
|
Zhu H, Li Y, Vdović S, Long S, He G, Guo Q. Femtosecond coherent anti-Stokes Raman scattering spectroscopy of hydrogen bonded structure in water and aqueous solutions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 151:262-273. [PMID: 26142659 DOI: 10.1016/j.saa.2015.06.115] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Revised: 06/26/2015] [Accepted: 06/27/2015] [Indexed: 06/04/2023]
Abstract
Femtosecond coherent anti-Stokes Raman scattering (fsCARS) spectroscopy, together with perturbation theory based numerical calculation, is employed to study OH stretching (υOH) of pure water and aqueous lithium chloride solutions. Vibrational OH stretching (υOH) modes of aqueous solutions are Raman-excited by a pair of ultrashort, femtosecond laser pulses, and then probed through inelastic scattering of a third, time-delayed laser field. In order to overcome limited spectral resolution of fsCARS, numerical evaluation of the CARS signal through vibrational wave packet propagation was employed in order to confirm the position of distinctive OH stretching mode that is complicated by intramolecular and intermolecular vibrational coupling. Moreover, in order to come to a microscopic description of the observed CARS spectra for aqueous solutions, we have performed molecular dynamics simulations of aqueous lithium chloride solutions with varying concentrations at ambient conditions. To this end we have analyzed the equilibrium distributions of hydrogen bonds in the first solvation shells of the ions as well as in bulk water and also computed the average number of hydrogen bonds per water molecule. According to our experimental and theoretical results on time evolution of Raman OH stretching band of water, it can be inferred that the dissolved ions mainly influence hydrogen bond strength and structure of water molecules in the first hydration shell, the addition of lithium chloride primarily breaks the tetrahedral hydrogen bonding, promotes formation of the donor hydrogen bonding in water, and slightly increases the amount of free OH bonds.
Collapse
Affiliation(s)
- Huaning Zhu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Yang Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Silvije Vdović
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China; Institute of Physics, Bijenička cesta 46, 10000 Zagreb, Croatia
| | - Saran Long
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Guiying He
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Qianjin Guo
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China.
| |
Collapse
|
36
|
Fransson T, Zhovtobriukh I, Coriani S, Wikfeldt KT, Norman P, Pettersson LGM. Requirements of first-principles calculations of X-ray absorption spectra of liquid water. Phys Chem Chem Phys 2015; 18:566-83. [PMID: 26619162 DOI: 10.1039/c5cp03919c] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A computational benchmark study on X-ray absorption spectra of water has been performed by means of transition-potential density functional theory (TP-DFT), damped time-dependent density functional theory (TDDFT), and damped coupled cluster (CC) linear response theory. For liquid water, using TDDFT with a tailored CAM-B3LYP functional and a polarizable embedding, we find that an embedding with over 2000 water molecules is required to fully converge spectral features for individual molecules, but a substantially smaller embedding can be used within averaging schemes. TP-DFT and TDDFT calculations on 100 MD structures demonstrate that TDDFT produces a spectrum with spectral features in good agreement with experiment, while it is more difficult to fully resolve the spectral features in the TP-DFT spectrum. Similar trends were also observed for calculations of bulk ice. In order to further establish the performance of these methods, small water clusters have been considered also at the CC2 and CCSD levels of theory. Issues regarding the basis set requirements for spectrum simulations of liquid water and the determination of gas-phase ionization potentials are also discussed.
Collapse
Affiliation(s)
- Thomas Fransson
- Department of Physics, Chemistry and Biology, Linköping University, SE-581 83 Linköping, Sweden
| | | | | | | | | | | |
Collapse
|
37
|
Yuan R, Yan C, Tamimi A, Fayer MD. Molecular Anion Hydrogen Bonding Dynamics in Aqueous Solution. J Phys Chem B 2015; 119:13407-15. [DOI: 10.1021/acs.jpcb.5b08168] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rongfeng Yuan
- Department
of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Chang Yan
- Department
of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Amr Tamimi
- Department
of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Michael D. Fayer
- Department
of Chemistry, Stanford University, Stanford, California 94305, United States
| |
Collapse
|
38
|
Specific ion interactions with aromatic rings in aqueous solutions: Comparison of molecular dynamics simulations with a thermodynamic solute partitioning model and Raman spectroscopy. Chem Phys Lett 2015. [DOI: 10.1016/j.cplett.2015.06.061] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
39
|
Sellberg JA, Kaya S, Segtnan VH, Chen C, Tyliszczak T, Ogasawara H, Nordlund D, Pettersson LGM, Nilsson A. Comparison of x-ray absorption spectra between water and ice: new ice data with low pre-edge absorption cross-section. J Chem Phys 2015; 141:034507. [PMID: 25053326 DOI: 10.1063/1.4890035] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The effect of crystal growth conditions on the O K-edge x-ray absorption spectra of ice is investigated through detailed analysis of the spectral features. The amount of ice defects is found to be minimized on hydrophobic surfaces, such as BaF2(111), with low concentration of nucleation centers. This is manifested through a reduction of the absorption cross-section at 535 eV, which is associated with distorted hydrogen bonds. Furthermore, a connection is made between the observed increase in spectral intensity between 544 and 548 eV and high-symmetry points in the electronic band structure, suggesting a more extended hydrogen-bond network as compared to ices prepared differently. The spectral differences for various ice preparations are compared to the temperature dependence of spectra of liquid water upon supercooling. A double-peak feature in the absorption cross-section between 540 and 543 eV is identified as a characteristic of the crystalline phase. The connection to the interpretation of the liquid phase O K-edge x-ray absorption spectrum is extensively discussed.
Collapse
Affiliation(s)
- Jonas A Sellberg
- Department of Physics, AlbaNova University Center, Stockholm University, S-106 91 Stockholm, Sweden
| | - Sarp Kaya
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - Vegard H Segtnan
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - Chen Chen
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - Tolek Tyliszczak
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Hirohito Ogasawara
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, P.O. Box 20450, Stanford, California 94309, USA
| | - Dennis Nordlund
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, P.O. Box 20450, Stanford, California 94309, USA
| | - Lars G M Pettersson
- Department of Physics, AlbaNova University Center, Stockholm University, S-106 91 Stockholm, Sweden
| | - Anders Nilsson
- Department of Physics, AlbaNova University Center, Stockholm University, S-106 91 Stockholm, Sweden
| |
Collapse
|
40
|
Waluyo I, Nordlund D, Bergmann U, Schlesinger D, Pettersson LGM, Nilsson A. A different view of structure-making and structure-breaking in alkali halide aqueous solutions through x-ray absorption spectroscopy. J Chem Phys 2015; 140:244506. [PMID: 24985653 DOI: 10.1063/1.4881600] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
X-ray absorption spectroscopy measured in transmission mode was used to study the effect of alkali and halide ions on the hydrogen-bonding (H-bonding) network of water. Cl(-) and Br(-) are shown to have insignificant effect on the structure of water while I(-) locally weakens the H-bonding, as indicated by a sharp increase of the main-edge feature in the x-ray absorption spectra. All alkali cations act as structure-breakers in water, weakening the H-bonding network. The spectral changes are similar to spectra of high density ices where the 2nd shell has collapsed due to a break-down of the tetrahedral structures, although here, around the ions, the breakdown of the local tetrahedrality is rather due to non-directional H-bonding to the larger anions. In addition, results from temperature-dependent x-ray Raman scattering measurements of NaCl solution confirm the H-bond breaking effect of Na(+) and the effect on the liquid as similar to an increase in temperature.
Collapse
Affiliation(s)
- Iradwikanari Waluyo
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, P.O. Box 20450, Stanford, California 94309, USA
| | - Dennis Nordlund
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, P.O. Box 20450, Stanford, California 94309, USA
| | - Uwe Bergmann
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, P.O. Box 20450, Stanford, California 94309, USA
| | - Daniel Schlesinger
- Department of Physics, AlbaNova University Center, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Lars G M Pettersson
- Department of Physics, AlbaNova University Center, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Anders Nilsson
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, P.O. Box 20450, Stanford, California 94309, USA
| |
Collapse
|
41
|
Precise Method for Determining the Enthalpy of Vaporization of Concentrated Salt Solutions Using a Bubble Column Evaporator. J SOLUTION CHEM 2015. [DOI: 10.1007/s10953-014-0288-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
42
|
Enslow KR, Bell AT. The Role of Metal Halides in Enhancing the Dehydration of Xylose to Furfural. ChemCatChem 2015. [DOI: 10.1002/cctc.201402842] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
43
|
Weinhardt L, Ertan E, Iannuzzi M, Weigand M, Fuchs O, Bär M, Blum M, Denlinger JD, Yang W, Umbach E, Odelius M, Heske C. Probing hydrogen bonding orbitals: resonant inelastic soft X-ray scattering of aqueous NH3. Phys Chem Chem Phys 2015; 17:27145-53. [DOI: 10.1039/c5cp04898b] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Resonant inelastic soft X-ray scattering was used to probe the hydrogen bonding orbitals in aqueous ammonia.
Collapse
|
44
|
Sanchéz-Lozano M, Mandado M, Pérez-Juste I, Hermida-Ramón JM. Theoretical vibrational Raman and surface-enhanced Raman scattering spectra of water interacting with silver clusters. Chemphyschem 2014; 15:4067-76. [PMID: 25263101 DOI: 10.1002/cphc.201402454] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Indexed: 11/11/2022]
Abstract
In this study, we analyzed the Raman spectrum of a water molecule adsorbed on a cluster of 20 silver atoms, and the plasmonic electromagnetic effect of the silver surface was also considered to give a theoretical prediction of the surface-enhanced Raman scattering spectrum. The calculations were performed at the density functional theory (DFT) level by using both frozen and unfrozen silver clusters. Two different models were used to consider the plasmonic enhancement; one of them was a modified classical (dipole) model and the other was the coupled perturbed Hartree-Fock method with excitation frequencies obtained from time-dependent DFT calculations and with proper detuning of these frequencies. The importance of small geometrical distortions of the silver surface in the orientation of the adsorbed water was shown. Moreover, it was shown how the symmetry of the transition dipole moment and the symmetry of the vibrational modes influence the Raman intensities of the SERS spectrum.
Collapse
Affiliation(s)
- Marta Sanchéz-Lozano
- Departamento de Química Física, Facultade de Química, Universidade de Vigo, Campus Lagoas Marcosende s/n, 36310 Vigo (Spain)
| | | | | | | |
Collapse
|
45
|
Jeyachandran YL, Meyer F, Nagarajan S, Benkert A, Bär M, Blum M, Yang W, Reinert F, Heske C, Weinhardt L, Zharnikov M. Ion-Solvation-Induced Molecular Reorganization in Liquid Water Probed by Resonant Inelastic Soft X-ray Scattering. J Phys Chem Lett 2014; 5:4143-4148. [PMID: 26278946 DOI: 10.1021/jz502186a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The molecular structure of liquid water is susceptible to changes upon admixture of salts due to ionic solvation, which provides the basis of many chemical and biochemical processes. Here we demonstrate how the local electronic structure of aqueous potassium chloride (KCl) solutions can be studied by resonant inelastic soft X-ray scattering (RIXS) to monitor the effects of the ion solvation on the hydrogen-bond (HB) network of liquid water. Significant changes in the oxygen K-edge emission spectra are observed with increasing KCl concentration. These changes can be attributed to modifications in the proton dynamics, caused by a specific coordination structure around the salt ions. Analysis of the spectator decay spectra reveals a spectral signature that could be characteristic of this structure.
Collapse
Affiliation(s)
- Yekkoni L Jeyachandran
- †Angewandte Physikalische Chemie, Universität Heidelberg, Im Neuenheimer Feld 253, 69120 Heidelberg, Germany
| | - Frank Meyer
- ‡Experimentelle Physik VII, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Sankaranarayanan Nagarajan
- †Angewandte Physikalische Chemie, Universität Heidelberg, Im Neuenheimer Feld 253, 69120 Heidelberg, Germany
| | - Andreas Benkert
- ‡Experimentelle Physik VII, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
- §Institute for Photon Science and Synchrotron Radiation, Karlsruhe Institute of Technology (KIT), Hermann-v.-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Marcus Bär
- ∥Solar Energy Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
- ⊥Institut für Physik und Chemie, Brandenburgische Technische Universität Cottbus-Senftenberg, Platz der Deutschen Einheit 1, 03046 Cottbus, Germany
- #Department of Chemistry, University of Nevada, Las Vegas (UNLV), 4505 Maryland Parkway, Las Vegas, Nevada 89154-4003, United States
| | - Monika Blum
- #Department of Chemistry, University of Nevada, Las Vegas (UNLV), 4505 Maryland Parkway, Las Vegas, Nevada 89154-4003, United States
| | - Wanli Yang
- ∇Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
| | - Friedrich Reinert
- ‡Experimentelle Physik VII, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Clemens Heske
- §Institute for Photon Science and Synchrotron Radiation, Karlsruhe Institute of Technology (KIT), Hermann-v.-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- #Department of Chemistry, University of Nevada, Las Vegas (UNLV), 4505 Maryland Parkway, Las Vegas, Nevada 89154-4003, United States
- ○ANKA Synchrotron Radiation Facility, Karlsruhe Institute of Technology (KIT), Hermann-v.-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- ◆Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstrasse 18/20, 76128 Karlsruhe, Germany
| | - Lothar Weinhardt
- §Institute for Photon Science and Synchrotron Radiation, Karlsruhe Institute of Technology (KIT), Hermann-v.-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- #Department of Chemistry, University of Nevada, Las Vegas (UNLV), 4505 Maryland Parkway, Las Vegas, Nevada 89154-4003, United States
- ○ANKA Synchrotron Radiation Facility, Karlsruhe Institute of Technology (KIT), Hermann-v.-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- ◆Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstrasse 18/20, 76128 Karlsruhe, Germany
| | - Michael Zharnikov
- †Angewandte Physikalische Chemie, Universität Heidelberg, Im Neuenheimer Feld 253, 69120 Heidelberg, Germany
| |
Collapse
|
46
|
Hartkamp R, Coasne B. Structure and transport of aqueous electrolytes: From simple halides to radionuclide ions. J Chem Phys 2014; 141:124508. [DOI: 10.1063/1.4896380] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
47
|
Morita T, Westh P, Nishikawa K, Koga Y. How Much Weaker Are the Effects of Cations than Those of Anions? The Effects of K+ and Cs+ on the Molecular Organization of Liquid H2O. J Phys Chem B 2014; 118:8744-9. [DOI: 10.1021/jp504245c] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Takeshi Morita
- Graduate
School of Advanced Integration Science, Chiba University, Chiba 263-8522, Japan
| | - Peter Westh
- NSM,
Research Unit for Functional Biomaterials, Roskilde University, Roskilde DK4000, Denmark
| | - Keiko Nishikawa
- Graduate
School of Advanced Integration Science, Chiba University, Chiba 263-8522, Japan
| | - Yoshikata Koga
- Department
of Chemistry, The University of British Columbia, Vancouver V6T 1Z1, Canada
- Suitekijuku, Vancouver V6R 2P5, Canada
| |
Collapse
|
48
|
Lam RK, Shih O, Smith JW, Sheardy AT, Rizzuto AM, Prendergast D, Saykally RJ. Electrokinetic detection for X-ray spectra of weakly interacting liquids: n-decane and n-nonane. J Chem Phys 2014; 140:234202. [DOI: 10.1063/1.4882901] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
|
49
|
Johnson CM, Baldelli S. Vibrational Sum Frequency Spectroscopy Studies of the Influence of Solutes and Phospholipids at Vapor/Water Interfaces Relevant to Biological and Environmental Systems. Chem Rev 2014; 114:8416-46. [DOI: 10.1021/cr4004902] [Citation(s) in RCA: 106] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- C. Magnus Johnson
- Division of Surface and Corrosion
Science, Royal Institute of Technology (KTH), Drottning Kristinas Väg 51, SE-100 44 Stockholm, Sweden
| | - Steven Baldelli
- Department
of Chemistry, University of Houston, Texas 77204-5003, United States
| |
Collapse
|
50
|
Abstract
The dynamics of water exhibits anomalous behavior in the presence of different electrolytes. Recent experiments [Kim JS, Wu Z, Morrow AR, Yethiraj A, Yethiraj A (2012) J Phys Chem B 116(39):12007-12013] have found that the self-diffusion of water (Dw) can either be enhanced or suppressed around CsI and NaCl, respectively, relative to that of neat water. Here we show that unlike classical empirical potentials, ab initio molecular dynamics simulations successfully reproduce the qualitative trends observed experimentally. These types of phenomena have often been rationalized in terms of the "structure-making" or "structure-breaking" effects of different ions on the solvent, although the microscopic origins of these features have remained elusive. Rather than disrupting the network in a significant manner, the electrolytes studied here cause rather subtle changes in both structural and dynamical properties of water. In particular, we show that water in the ab initio molecular dynamics simulations is characterized by dynamic heterogeneity, which turns out to be critical in reproducing the experimental trends.
Collapse
|