1
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Kacenauskaite L, Moncada Cohen M, Van Wyck SJ, Fayer MD. Fast Structural Dynamics in Concentrated HCl Solutions: From Proton Hopping to the Bulk Viscosity. J Am Chem Soc 2024; 146:12355-12364. [PMID: 38682723 DOI: 10.1021/jacs.3c11620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
Concentrated acid solutions, particularly HCl, have been studied extensively to examine the proton hopping and infrared spectral signatures of hydronium ions. Much less attention has been given to the structural dynamics of concentrated HCl solutions. Here, we apply optical heterodyne detected-optical Kerr effect (OHD-OKE) measurements to examine HCl concentration-dependent dynamics from moderate (0.8 m) to very high (15.5 m) concentrations and compare the results to the dynamics of NaCl solutions, as Na+ is similar in size to the hydronium cation. Both HCl and NaCl OHD-OKE signals decay as triexponentials at all concentrations, in contrast to pure water, which decays as a biexponential. Two remarkable features of the HCl dynamics are the following: (1) the bulk viscosity is linearly related to the slowest decay constant, t3, and (2) the concentration-dependent proton hopping times, determined by ab initio MD simulations and 2D IR chemical exchange experiments, both obtained from the literature, fall on the same line as the slowest structural dynamics relaxation time, t3, within experimental error. The structural dynamics of hydronium/chloride/water clusters, with relaxation times t3, are responsible for the concentration dependence of microscopic property of proton hopping and the macroscopic bulk viscosity. The slowest time constant (t3), which does not have a counterpart in pure water, is 3 ps at 0.8 m and increases by a factor of ∼2 by 15.5 m. The two fastest HCl decay constants, t1 and t2, are similar to those of pure water and increase mildly with the concentration.
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Affiliation(s)
- Laura Kacenauskaite
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Copenhagen 2100, Denmark
| | - Max Moncada Cohen
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Stephen J Van Wyck
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Michael D Fayer
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
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2
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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.
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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
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3
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Konermann L, Haidar Y. Mechanism of Magic Number NaCl Cluster Formation from Electrosprayed Water Nanodroplets. Anal Chem 2022; 94:16491-16501. [DOI: 10.1021/acs.analchem.2c04141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Lars Konermann
- Department of Chemistry, The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Yousef Haidar
- Department of Chemistry, The University of Western Ontario, London, Ontario N6A 5B7, Canada
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4
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Rashid MH, Borca CN, Xto JM, Huthwelker T. X-Ray absorption spectroscopy on airborne aerosols. ENVIRONMENTAL SCIENCE: ATMOSPHERES 2022; 2:1338-1350. [PMID: 36561554 PMCID: PMC9648630 DOI: 10.1039/d2ea00016d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 09/26/2022] [Indexed: 11/07/2022]
Abstract
Here we demonstrate a method for performing X-ray absorption spectroscopy (XAS) on airborne aerosols. XAS provides unique insight into elemental composition, chemical and phase state, local coordination and electronic structure of both crystalline and amorphous matter. The aerosol is generated from different salt solutions using a commercial atomizer and dried using a diffusion drier. Embedded in a carrier gas, the aerosol is guided into the experimental chamber for XAS analysis. Typical particle sizes range from some 10 to a few 100 nm. Inside the chamber the aerosol bearing gas is then confined into a region of about 1-2 cm3 in size, by a pure flow of helium, generating a stable free-flowing stream of aerosol. It is hit by a monochromatic X-ray beam, and the emitted fluorescent light is used for spectroscopic analysis. Using an aerosol generated from CaCl2, KCl, and (NH4)2SO4 salt solutions, we demonstrate the functionality of the system in studying environmentally relevant systems. In addition, we show that the detection limits are sufficient to also observe subtle spectroscopic signatures in XAS spectra with integration times of about 1-2 hours using a bright undulator beamline. This novel setup opens new research opportunities for studying the nucleation of new phases in multicomponent aerosol systems in situ, and for investigating (photo-) chemical reactions on airborne matter, as relevant to both atmospheric science and also for general chemical application.
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Affiliation(s)
- Muhammad H. Rashid
- Paul Scherrer Institute, Swiss Light Source, Laboratory for FemtochemistryForschungsstrasse 111Villigen PSISwitzerland
| | - Camelia N. Borca
- Paul Scherrer Institute, Swiss Light Source, Laboratory for FemtochemistryForschungsstrasse 111Villigen PSISwitzerland
| | - Jacinta M. Xto
- Paul Scherrer Institute, Swiss Light Source, Laboratory for FemtochemistryForschungsstrasse 111Villigen PSISwitzerland
| | - Thomas Huthwelker
- Paul Scherrer Institute, Swiss Light Source, Laboratory for FemtochemistryForschungsstrasse 111Villigen PSISwitzerland
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5
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Driscoll DM, Shiery RC, D'Annunzio N, Boglaienko D, Balasubramanian M, Levitskaia TG, Pearce CI, Govind N, Cantu DC, Fulton JL. Water Defect Stabilizes the Bi 3+ Lone-Pair Electronic State Leading to an Unusual Aqueous Hydration Structure. Inorg Chem 2022; 61:14987-14996. [PMID: 36099562 DOI: 10.1021/acs.inorgchem.2c01693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The aqueous hydration structure of the Bi3+ ion is probed using a combination of extended X-ray absorption fine structure (EXAFS) spectroscopy and density functional theory (DFT) simulations of ion-water clusters and condensed-phase solutions. Anomalous features in the EXAFS spectra are found to be associated with a highly asymmetric first-solvent water shell. The aqueous chemistry and structure of the Bi3+ ion are dramatically controlled by the water stabilization of a lone-pair electronic state involving the mixed 6s and 6p orbitals. This leads to a distinct multimodal distribution of water molecules in the first shell that are separated by about 0.2 Å. The lone-pair structure is stabilized by a collective response of multiple waters that are localized near the lone-pair anti-bonding site. The findings indicate that the lone-pair stereochemistry of aqueous Bi3+ ions plays a major role in the binding of water and ligands in aqueous solutions.
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Affiliation(s)
- Darren M Driscoll
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Richard C Shiery
- Chemical and Materials Engineering, University of Nevada, Reno, Reno, Nevada 89557, United States
| | - Nicolas D'Annunzio
- Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Daria Boglaienko
- Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | | | - Tatiana G Levitskaia
- Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Carolyn I Pearce
- Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Niranjan Govind
- Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - David C Cantu
- Chemical and Materials Engineering, University of Nevada, Reno, Reno, Nevada 89557, United States
| | - John L Fulton
- Pacific Northwest National Laboratory, Richland, Washington 99354, United States
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6
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Brünig FN, Rammler M, Adams EM, Havenith M, Netz RR. Spectral signatures of excess-proton waiting and transfer-path dynamics in aqueous hydrochloric acid solutions. Nat Commun 2022; 13:4210. [PMID: 35864099 PMCID: PMC9304333 DOI: 10.1038/s41467-022-31700-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 06/22/2022] [Indexed: 11/23/2022] Open
Abstract
The theoretical basis for linking spectral signatures of hydrated excess protons with microscopic proton-transfer mechanisms has so far relied on normal-mode analysis. We introduce trajectory-decomposition techniques to analyze the excess-proton dynamics in ab initio molecular-dynamics simulations of aqueous hydrochloric-acid solutions beyond the normal-mode scenario. We show that the actual proton transfer between two water molecules involves for relatively large water-water separations crossing of a free-energy barrier and thus is not a normal mode, rather it is characterized by two non-vibrational time scales: Firstly, the broadly distributed waiting time for transfer to occur with a mean value of 200-300 fs, which leads to a broad and weak shoulder in the absorption spectrum around 100 cm-1, consistent with our experimental THz spectra. Secondly, the mean duration of a transfer event of about 14 fs, which produces a rather well-defined spectral contribution around 1200 cm-1 and agrees in location and width with previous experimental mid-infrared spectra.
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Affiliation(s)
- Florian N Brünig
- Freie Universität Berlin, Department of Physics, 14195, Berlin, Germany
| | - Manuel Rammler
- Freie Universität Berlin, Department of Physics, 14195, Berlin, Germany
| | - Ellen M Adams
- Ruhr-Universität Bochum, Department of Physical Chemistry II, 44780, Bochum, Germany
| | - Martina Havenith
- Ruhr-Universität Bochum, Department of Physical Chemistry II, 44780, Bochum, Germany
| | - Roland R Netz
- Freie Universität Berlin, Department of Physics, 14195, Berlin, Germany.
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7
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Kazmierczak L, Janik I, Wolszczak M, Swiatla-Wojcik D. Dynamics of Ion Pairing in Dilute Aqueous HCl Solutions by Spectroscopic Measurements of Hydroxyl Radical Conversion into Dichloride Radical Anions. J Phys Chem B 2021; 125:9564-9571. [PMID: 34383496 PMCID: PMC8404193 DOI: 10.1021/acs.jpcb.1c05642] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
The rate of formation
of dichloride anions (Cl2•–) in
dilute aqueous solutions of HCl (2–100
mmol·kg–1) was measured by the technique of
pulse radiolysis over the temperature range of 288–373 K. The
obtained Arrhenius dependence shows a concentration averaged activation
energy of 7.3 ± 1.8 kJ·mol–1, being half
of that expected from the mechanism assuming the •OHCl– intermediate and supporting the ionic equilibrium-based
mechanism, i.e., the formation of Cl2•– in the reaction of •OH with a hydronium–chloride
(Cl–·H3O+) contact ion
pair. Assuming diffusion-controlled encounter of the hydronium and
chloride ions and including the effect of the ionic atmosphere, we
showed that the reciprocal of τ, the lifetime of (Cl–·H3O+), follows an Arrhenius dependence
with an activation energy of 23 ± 4 kJ·mol–1, independent of the acid concentration. This result indicates that
the contact pair is stabilized by hydrogen bonding interaction of
the solvent molecules. We also found that at a fixed temperature,
τ is noticeably increased in less-concentrated solutions (mHCl < 0.01 m). Since this concentration effect
is particularly pronounced at near ambient temperatures, the increasing
pair lifetime may result from the solvent cage effect enhanced by
the presence of large supramolecular structures (patches) formed by
continuously connected four-bonded water molecules.
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Affiliation(s)
- Lukasz Kazmierczak
- Institute of Applied Radiation Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, Lodz 90-924, Poland
| | - Ireneusz Janik
- Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Marian Wolszczak
- Institute of Applied Radiation Chemistry, Faculty of Chemistry, Lodz University of Technology, Wroblewskiego 15, Lodz 93-590, Poland
| | - Dorota Swiatla-Wojcik
- Institute of Applied Radiation Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, Lodz 90-924, Poland
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8
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Lommelen R, Binnemans K. Thermodynamic Modeling of Salting Effects in Solvent Extraction of Cobalt(II) from Chloride Media by the Basic Extractant Methyltrioctylammonium Chloride. ACS OMEGA 2021; 6:11355-11366. [PMID: 34056291 PMCID: PMC8153924 DOI: 10.1021/acsomega.1c00340] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 03/15/2021] [Indexed: 06/12/2023]
Abstract
The design and optimization of solvent extraction processes for metal separations are challenging tasks due to the large number of adjustable parameters. A quantitative predictive solvent extraction model could help to determine the optimal parameters for solvent extraction flow sheets, but such predictive models are not available yet. The main difficulties for such models are the large deviations from ideal thermodynamic behavior in both the aqueous and organic phases due to high solute concentrations. We constructed a molecular thermodynamic model for the extraction of CoCl2 from different chloride salts by 0.2 mol L-1 trioctylmethylammonium chloride in toluene using the OLI mixed-solvent electrolyte (OLI-MSE) framework. This was accomplished by analyzing the water and hydrochloric acid content of the organic phase, measuring the water activity of the system, and using metal complex speciation and solvent extraction data. The full extractant concentration range cannot be modeled by the OLI-MSE framework as this framework lacks a description for reversed micelle formation. Nevertheless, salting effects and the behavior of hydrochloric acid can be accurately described with the presented extraction model, without determining specific Co(II)-salt cation interaction parameters. The resulting model shows that the salting effects originate from indirect salt cation-solvent interactions that influence the availability of water in the aqueous and organic phases.
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9
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Lommelen R, Onghena B, Binnemans K. Cation Effect of Chloride Salting Agents on Transition Metal Ion Hydration and Solvent Extraction by the Basic Extractant Methyltrioctylammonium Chloride. Inorg Chem 2020; 59:13442-13452. [PMID: 32857504 PMCID: PMC7529323 DOI: 10.1021/acs.inorgchem.0c01821] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
The
addition of a nonextractable salt has an important influence
on the solvent extraction of metal ions, but the underlying principles
are not completely understood yet. However, relating solute hydration
mechanisms to solvent extraction equilibria is key to understanding
the mechanism of solvent extraction of metal ions as a whole. We have
studied the speciation of Co(II), Zn(II), and Cu(II) in aqueous solutions
containing different chloride salts to understand their extraction
to the basic extractant methyltrioctylammonium chloride (TOMAC). This
includes the first speciation profile of Zn(II) in chloride media
with the three Zn(II) species [Zn(H2O)6]2+, [ZnCl3H2O]−, and
[ZnCl4]2–. The observed differences in
extraction efficiency for a given transition metal ion can be explained
by transition metal ion hydration due to ion–solvent interactions,
rather than by ion–solute interactions or by differences in
speciation. Chloride salting agents bearing a cation with a larger
hydration Gibbs free energy reduce the free water content more, resulting
in a lower hydration for the transition metal ion. This destabilizes
the transition metal chloro complex in the aqueous phase and increases
the extraction efficiency. Salting agents with di- and trivalent cations
reduce the transition metal chloro complex hydration less than expected,
resulting in a lower extraction efficiency. The cations of these salting
agents have a very large hydration Gibbs free energy, but the overall
hydration of these salts is reduced due to significant salt ion pair
formation. The general order of salting-out strength for the extraction
of metal ions from chloride salt solutions is Cs+ <
Rb+ < NH4+ ≈ K+ < Al3+ ≈ Mg2+ ≈ Ca2+ ≈ Na+ < Li+. These findings can
help in predicting the optimal conditions for metal separation by
solvent extraction and also contribute to a broader understanding
of the effects of dissolved salts on solutes. Addition of a nonextractable salt influences the stability
and solvent extraction efficiency of metal complexes. Cations of different
chloride salts reduce the solution free water content as a function
of their increasing hydration energy and decreasing tendency for ion
pair formation with chloride anions. These ion−solvent interactions
reduce the hydration of metal complexes, increasing their distribution
ratios. These effects influence aqueous transition metal complexes
more than direct ion−solute interactions and changes in complex
speciation.
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Affiliation(s)
- Rayco Lommelen
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, P.O. Box 2404, B-3001 Leuven, Belgium
| | - Bieke Onghena
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, P.O. Box 2404, B-3001 Leuven, Belgium
| | - Koen Binnemans
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, P.O. Box 2404, B-3001 Leuven, Belgium
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10
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Bresnahan CG, David R, Milet A, Kumar R. Ion Pairing in HCl-Water Clusters: From Electronic Structure Investigations to Multiconfigurational Force-Field Development. J Phys Chem A 2019; 123:9371-9381. [PMID: 31589444 DOI: 10.1021/acs.jpca.9b07775] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In the bulk, condensed-phase HCl exists as a dissociated Cl- ion and a proton that is delocalized over solvating water molecules. However, in the gas phase, HCl is covalent, and even on the introduction of hydrating water molecules, the HCl covalent state dominates small clusters and is relevant at larger clusters including 21 water molecules. Electronic structure calculations (at the MP2 level) and ab initio metadynamics simulations (at the DFT level) have been carried out on HCl-(H2O)n clusters with n = 2-22 to investigate distinct solvation environments in clusters from covalent HCl structure, to contact ion pairs and solvent-separated ion pairs. The data were further used to train and validate a multiconfigurational force-field for HCl-water clusters that incorporates covalent HCl states into the MS-EVB3.2 formalism. Additionally, the many-body interaction of the Cl- ion with water and the excess proton was modeled by the introduction of two geometric three-body terms that incorporates the dominant many-body interaction in an efficient noniterative manner.
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Affiliation(s)
- Caitlin G Bresnahan
- Department of Chemistry , 232 Choppin Hall , Louisiana State University , Baton Rouge , Louisiana 70803 , United States
| | - Rolf David
- Department of Chemistry , 232 Choppin Hall , Louisiana State University , Baton Rouge , Louisiana 70803 , United States.,Univ. Grenoble Alpes, CNRS, DCM , 38000 Grenoble , France
| | - Anne Milet
- Univ. Grenoble Alpes, CNRS, DCM , 38000 Grenoble , France
| | - Revati Kumar
- Department of Chemistry , 232 Choppin Hall , Louisiana State University , Baton Rouge , Louisiana 70803 , United States
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11
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Rodriguez Quiroz N, Padmanathan AMD, Mushrif SH, Vlachos DG. Understanding Acidity of Molten Salt Hydrate Media for Cellulose Hydrolysis by Combining Kinetic Studies, Electrolyte Solution Modeling, Molecular Dynamics Simulations, and 13C NMR Experiments. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03301] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Natalia Rodriguez Quiroz
- Catalysis Center for Energy Innovation and Department of Chemical and Biomolecular Engineering, University of Delaware, 221 Academy Street, Newark, Delaware 19716, United States
| | - Arul M. D. Padmanathan
- Department of Chemical and Materials Engineering, University of Alberta, 9211-116 Street Northwest, Edmonton, Alberta T6G 1H9, Canada
| | - Samir H. Mushrif
- Department of Chemical and Materials Engineering, University of Alberta, 9211-116 Street Northwest, Edmonton, Alberta T6G 1H9, Canada
| | - Dionisios G. Vlachos
- Catalysis Center for Energy Innovation and Department of Chemical and Biomolecular Engineering, University of Delaware, 221 Academy Street, Newark, Delaware 19716, United States
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12
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Varadwaj PR, Varadwaj A, Marques HM. C 70 Fullerene Cage as a Novel Catalyst for Efficient Proton Transfer Reactions between Small Molecules: A Theoretical study. Sci Rep 2019; 9:10650. [PMID: 31337790 PMCID: PMC6650427 DOI: 10.1038/s41598-019-46725-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 07/02/2019] [Indexed: 11/12/2022] Open
Abstract
When acids are supplied with an excess electron (or placed in an Ar or the more polarizable N2 matrix) in the presence of species such as NH3, the formation of ion-pairs is a likely outcome. Using density functional theory and first-principles calculations, however, we show that, without supplying an external electron or an electric field, or introducing photo-excitation and -ionization, a single molecule of HCl or HBr in the presence of a single molecule of water inside a C70 fullerene cage is susceptible to cleavage of the σ-bond of the Brønsted-Lowry acid into X− and H+ ions, with concomitant transfer of the proton along the reaction coordinate. This leads to the formation of an X−···+HOH2 (X = Cl, Br) conjugate acid-base ion-pair, similar to the structure in water of a Zundel ion. This process is unlikely to occur in other fullerene derivatives in the presence of H2O without significantly affecting the geometry of the carbon cage, suggesting that the interior of C70 is an ideal catalytic platform for proton transfer reactions and the design of related novel materials. By contrast, when a single molecule of HF is reacted with a single molecule of H2O inside the C70 cage, partial proton transfers from HF to H2O is an immediate consequence, as recently observed experimentally. The geometrical, energetic, electron density, orbital, optoelectronic and vibrational characteristics supporting these observations are presented. In contrast with the views that have been advanced in several recent studies, we show that the encaged species experiences significant non-covalent interaction with the interior of the cage. We also show that the inability of current experiments to detect many infrared active vibrational bands of the endo species in these systems is likely to be a consequence of the substantial electrostatic screening effect of the cage.
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Affiliation(s)
- Pradeep R Varadwaj
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo 7-3-1, Hongo, Bunkyo-ku, 113-8656, Japan. .,The National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, 305-8560, Japan.
| | - Arpita Varadwaj
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo 7-3-1, Hongo, Bunkyo-ku, 113-8656, Japan. .,The National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, 305-8560, Japan.
| | - Helder M Marques
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Johannesburg, 2050, South Africa
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13
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Tsunoji N, Nishida H, Ide Y, Komaguchi K, Hayakawa S, Yagenji Y, Sadakane M, Sano T. Photocatalytic Activation of C–H Bonds by Spatially Controlled Chlorine and Titanium on the Silicate Layer. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01284] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nao Tsunoji
- Graduate School of Engineering, Department of Applied Chemistry, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Hidechika Nishida
- Graduate School of Engineering, Department of Applied Chemistry, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Yusuke Ide
- International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Kenji Komaguchi
- Graduate School of Engineering, Department of Applied Chemistry, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Shinjiro Hayakawa
- Graduate School of Engineering, Department of Applied Chemistry, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Yuya Yagenji
- Graduate School of Engineering, Department of Applied Chemistry, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Masahiro Sadakane
- Graduate School of Engineering, Department of Applied Chemistry, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Tsuneji Sano
- Graduate School of Engineering, Department of Applied Chemistry, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
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14
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Drexler CI, Miller TC, Rogers BA, Li YC, Daly CA, Yang T, Corcelli SA, Cremer PS. Counter Cations Affect Transport in Aqueous Hydroxide Solutions with Ion Specificity. J Am Chem Soc 2019; 141:6930-6936. [DOI: 10.1021/jacs.8b13458] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
| | - Tierney C. Miller
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | | | | | - Clyde A. Daly
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | | | - Steven A. Corcelli
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
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15
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Galib M, Baer MD, Skinner LB, Mundy CJ, Huthwelker T, Schenter GK, Benmore CJ, Govind N, Fulton JL. Revisiting the hydration structure of aqueous Na+. J Chem Phys 2017; 146:084504. [DOI: 10.1063/1.4975608] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Affiliation(s)
- M. Galib
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - M. D. Baer
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - L. B. Skinner
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - C. J. Mundy
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - T. Huthwelker
- Swiss Light Source, Paul Scherrer Institute (PSI), 5232, Villigen, Switzerland
| | - G. K. Schenter
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - C. J. Benmore
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - N. Govind
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - J. L. Fulton
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, USA
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16
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Koga Y, Miki K, Nishikawa K. Effects of H + and OH − on H 2O as probed by the 1-propanol probing methodology: differential thermodynamic approach. Phys Chem Chem Phys 2017; 19:27413-27420. [DOI: 10.1039/c7cp05519f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two-dimensional characterization map of H+ and OH−, together with other ions.
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Affiliation(s)
- Yoshikata Koga
- Department of Chemistry
- The University of British Columbia
- Vancouver, BC
- V6T 1Z1, Canada, and Suitekijuku
- Vancouver
| | - Kumiko Miki
- Department of Liberal Arts and Basic Sciences
- College of Industrial Technology
- Nihon University
- Narashino
- Japan
| | - Keiko Nishikawa
- Graduate School of Advanced Integration Science, Chiba University
- Chiba 263-8522
- Japan
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17
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Prakash M, Subramanian V. Ab initio and density functional theory (DFT) studies on triflic acid with water and protonated water clusters. J Mol Model 2016; 22:293. [PMID: 27888404 DOI: 10.1007/s00894-016-3158-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Accepted: 11/08/2016] [Indexed: 02/04/2023]
Abstract
The structure, stability and infrared spectral signatures of triflic acid (TA) with water clusters (Wn) and protonated water clusters (TAH+Wn, n = 1 - 6) were computed using DFT and MP2 methods. Our calculations show that a minimum of three water molecules are necessary to stabilize the dissociated zwitterionic form of TA. It can be seen from the results that there is no significant movement of protons in smaller (n = 1 and 2) and linear (n = 1 - 6) types of water clusters. Further, the geometries of TAWn clusters first form a neutral pair (NP) to contact ion pair (CIP), then form a solvent separated ion pair (SSIP) in a water hexamer. These findings reveal that proton transfer may take place through NP to CIP and then CIP to SSIP. The calculated binding energies (BEs) of ion pair clusters is always higher than that of NP clusters (i.e., more stable than the NP). Existing excess proton linear chain clusters transfer a proton to adjacent water molecules via a Grotthuss mechanism, whereas the same isomers in the branched motifs do not conduct protons. Examination of geometrical parameters and infrared frequencies reveals hydronium ion (H3O+ also called Eigen cation) formation in both TAWn and protonated TAWn clusters. The stability of Eigen water clusters is three times higher than that of other non-Eigen water clusters. Our study shows clearly that formation of ion pairs in TAWn and TAH+Wn clusters greatly favors proton transfer to neighboring water molecules and also enhances the stability of these complexes.
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Affiliation(s)
- M Prakash
- Department of Chemistry and Research Institute, SRM University, Kattankulathur, 603203, Tamil Nadu, India
- Chemical Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, 600 020, India
| | - V Subramanian
- Chemical Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, 600 020, India.
- Academy of Scientific and Innovative Research (AcSIR), CSIR-CLRI Campus, Chennai, 600 020, India.
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18
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Antalek M, Pace E, Hedman B, Hodgson KO, Chillemi G, Benfatto M, Sarangi R, Frank P. Solvation structure of the halides from x-ray absorption spectroscopy. J Chem Phys 2016; 145:044318. [PMID: 27475372 PMCID: PMC4967075 DOI: 10.1063/1.4959589] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 07/11/2016] [Indexed: 11/14/2022] Open
Abstract
Three-dimensional models for the aqueous solvation structures of chloride, bromide, and iodide are reported. K-edge extended X-ray absorption fine structure (EXAFS) and Minuit X-ray absorption near edge (MXAN) analyses found well-defined single shell solvation spheres for bromide and iodide. However, dissolved chloride proved structurally distinct, with two solvation shells needed to explain its strikingly different X-ray absorption near edge structure (XANES) spectrum. Final solvation models were as follows: iodide, 8 water molecules at 3.60 ± 0.13 Å and bromide, 8 water molecules at 3.40 ± 0.14 Å, while chloride solvation included 7 water molecules at 3.15 ± 0.10 Å, and a second shell of 7 water molecules at 4.14 ± 0.30 Å. Each of the three derived solvation shells is approximately uniformly disposed about the halides, with no global asymmetry. Time-dependent density functional theory calculations simulating the chloride XANES spectra following from alternative solvation spheres revealed surprising sensitivity of the electronic state to 6-, 7-, or 8-coordination, implying a strongly bounded phase space for the correct structure during an MXAN fit. MXAN analysis further showed that the asymmetric solvation predicted from molecular dynamics simulations using halide polarization can play no significant part in bulk solvation. Classical molecular dynamics used to explore chloride solvation found a 7-water solvation shell at 3.12 (-0.04/+0.3) Å, supporting the experimental result. These experiments provide the first fully three-dimensional structures presenting to atomic resolution the aqueous solvation spheres of the larger halide ions.
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Affiliation(s)
- Matthew Antalek
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Stanford University, Menlo Park, California 94025, USA
| | - Elisabetta Pace
- Laboratori Nazionali di Frascati-INFN, P.O. Box 13, 00044 Frascati, Italy
| | - Britt Hedman
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Stanford University, Menlo Park, California 94025, USA
| | - Keith O Hodgson
- Department of Chemistry, Stanford University, Stanford, California 94305, USA
| | - Giovanni Chillemi
- CINECA, SCAI-SuperComputing Applications and Innovation Department, Via dei Tizii 6, 00185 Roma, Italy
| | - Maurizio Benfatto
- Laboratori Nazionali di Frascati-INFN, P.O. Box 13, 00044 Frascati, Italy
| | - Ritimukta Sarangi
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Stanford University, Menlo Park, California 94025, USA
| | - Patrick Frank
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Stanford University, Menlo Park, California 94025, USA
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19
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High-resolution Measurement of Contact Ion-pair Structures in Aqueous RbCl Solutions from the Simultaneous Corefinement of their Rb and Cl K-edge XAFS and XRD Spectra. J SOLUTION CHEM 2016. [DOI: 10.1007/s10953-016-0487-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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Agmon N, Bakker HJ, Campen RK, Henchman RH, Pohl P, Roke S, Thämer M, Hassanali A. Protons and Hydroxide Ions in Aqueous Systems. Chem Rev 2016; 116:7642-72. [PMID: 27314430 DOI: 10.1021/acs.chemrev.5b00736] [Citation(s) in RCA: 294] [Impact Index Per Article: 36.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Understanding the structure and dynamics of water's constituent ions, proton and hydroxide, has been a subject of numerous experimental and theoretical studies over the last century. Besides their obvious importance in acid-base chemistry, these ions play an important role in numerous applications ranging from enzyme catalysis to environmental chemistry. Despite a long history of research, many fundamental issues regarding their properties continue to be an active area of research. Here, we provide a review of the experimental and theoretical advances made in the last several decades in understanding the structure, dynamics, and transport of the proton and hydroxide ions in different aqueous environments, ranging from water clusters to the bulk liquid and its interfaces with hydrophobic surfaces. The propensity of these ions to accumulate at hydrophobic surfaces has been a subject of intense debate, and we highlight the open issues and challenges in this area. Biological applications reviewed include proton transport along the hydration layer of various membranes and through channel proteins, problems that are at the core of cellular bioenergetics.
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Affiliation(s)
- Noam Agmon
- The Fritz Haber Research Center, Institute of Chemistry, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
| | - Huib J Bakker
- FOM Institute AMOLF , Science Park 104, 1098 XG Amsterdam, The Netherlands
| | - R Kramer Campen
- Fritz Haber Institute of the Max Planck Society , Faradayweg 4-6, 14195 Berlin, Germany
| | - Richard H Henchman
- Manchester Institute of Biotechnology, School of Chemistry, The University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
| | - Peter Pohl
- Johannes Kepler University Linz , Institute of Biophysics, Gruberstrasse 40, 4020 Linz, Austria
| | - Sylvie Roke
- Laboratory for Fundamental BioPhotonics (LBP), Institute of Bioengineering (IBI), and Institute of Material Science (IMX), School of Engineering (STI), and Lausanne Centre for Ultrafast Science (LACUS), École Polytechnique Fédérale de Lausanne (EPFL) , CH-1015, Lausanne, Switzerland
| | - Martin Thämer
- Fritz Haber Institute of the Max Planck Society , Faradayweg 4-6, 14195 Berlin, Germany.,Department of Chemistry, Institute for Biophysical Dynamics, and James Franck Institute, The University of Chicago , Chicago, Illinois 60637, United States
| | - Ali Hassanali
- CMSP Section, The Abdus Salaam International Center for Theoretical Physics , I-34151 Trieste, Italy
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21
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Fulton JL, Govind N, Huthwelker T, Bylaska EJ, Vjunov A, Pin S, Smurthwaite TD. Electronic and Chemical State of Aluminum from the Single- (K) and Double-Electron Excitation (KLII&III, KLI) X-ray Absorption Near-Edge Spectra of α-Alumina, Sodium Aluminate, Aqueous Al3+·(H2O)6, and Aqueous Al(OH)4–. J Phys Chem B 2015; 119:8380-8. [DOI: 10.1021/jp511602n] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
| | | | - Thomas Huthwelker
- Swiss Light Source,
Laboratory for Catalysis and Sustainable Chemistry (LSK), Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland
| | | | | | - Sonia Pin
- Swiss Light Source,
Laboratory for Catalysis and Sustainable Chemistry (LSK), Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland
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22
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Ohm PB, Asato C, Wexler AS, Dutcher CS. Isotherm-Based Thermodynamic Model for Electrolyte and Nonelectrolyte Solutions Incorporating Long- and Short-Range Electrostatic Interactions. J Phys Chem A 2015; 119:3244-52. [DOI: 10.1021/jp512646k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Peter B. Ohm
- Department
of Mechanical Engineering, University of Minnesota, Twin Cities, 111 Church Street SE, Minneapolis, Minnesota 55455, United States
| | - Caitlin Asato
- Air
Quality Research Center, University of California at Davis, One Shields
Avenue, Davis, California 95616, United States
| | - Anthony S. Wexler
- Air
Quality Research Center, University of California at Davis, One Shields
Avenue, Davis, California 95616, United States
| | - Cari S. Dutcher
- Department
of Mechanical Engineering, University of Minnesota, Twin Cities, 111 Church Street SE, Minneapolis, Minnesota 55455, United States
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23
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Decka D, Schwaab G, Havenith M. A THz/FTIR fingerprint of the solvated proton: evidence for Eigen structure and Zundel dynamics. Phys Chem Chem Phys 2015; 17:11898-907. [DOI: 10.1039/c5cp01035g] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Zundel (orange), Eigen (red) and hydration water (light blue) contributions to the THz/FIR extinction of the solvated proton.
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Affiliation(s)
- Dominique Decka
- Department of Physical Chemistry II
- Ruhr-University Bochum
- Germany
| | - Gerhard Schwaab
- Department of Physical Chemistry II
- Ruhr-University Bochum
- Germany
| | - Martina Havenith
- Department of Physical Chemistry II
- Ruhr-University Bochum
- Germany
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24
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Baer MD, Fulton JL, Balasubramanian M, Schenter GK, Mundy CJ. Persistent Ion Pairing in Aqueous Hydrochloric Acid. J Phys Chem B 2014; 118:7211-20. [DOI: 10.1021/jp501091h] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Marcel D. Baer
- Physical
Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - John L. Fulton
- Physical
Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | | | - Gregory K. Schenter
- Physical
Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Christopher J. Mundy
- Physical
Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
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25
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Vjunov A, Fulton JL, Huthwelker T, Pin S, Mei D, Schenter GK, Govind N, Camaioni DM, Hu JZ, Lercher JA. Quantitatively Probing the Al Distribution in Zeolites. J Am Chem Soc 2014; 136:8296-306. [DOI: 10.1021/ja501361v] [Citation(s) in RCA: 162] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
| | | | - Thomas Huthwelker
- Swiss
Light Source, Laboratory for Catalysis and Sustainable Chemistry (LSK), Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland
| | - Sonia Pin
- Swiss
Light Source, Laboratory for Catalysis and Sustainable Chemistry (LSK), Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland
| | | | | | | | | | | | - Johannes A. Lercher
- Department
of Chemistry and Catalysis Research Institute, TU München, Lichtenbergstrasse
4, 85748 Garching Germany
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26
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Juurinen I, Pylkkänen T, Ruotsalainen KO, Sahle CJ, Monaco G, Hämäläinen K, Huotari S, Hakala M. Saturation Behavior in X-ray Raman Scattering Spectra of Aqueous LiCl. J Phys Chem B 2013; 117:16506-11. [DOI: 10.1021/jp409528r] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Iina Juurinen
- Department
of Physics, University of Helsinki, P.O.B. 64, FI-00014 Helsinki, Finland
| | - Tuomas Pylkkänen
- Department
of Physics, University of Helsinki, P.O.B. 64, FI-00014 Helsinki, Finland
| | - Kari O. Ruotsalainen
- Department
of Physics, University of Helsinki, P.O.B. 64, FI-00014 Helsinki, Finland
| | - Christoph J. Sahle
- Department
of Physics, University of Helsinki, P.O.B. 64, FI-00014 Helsinki, Finland
| | - Giulio Monaco
- European
Synchrotron Radiation Facility, F-38043, Grenoble Cedex 9, France
- Dipartimento
di Fisica, Universitá di Trento, I-38123 Povo, Trento, Italy
| | - Keijo Hämäläinen
- Department
of Physics, University of Helsinki, P.O.B. 64, FI-00014 Helsinki, Finland
| | - Simo Huotari
- Department
of Physics, University of Helsinki, P.O.B. 64, FI-00014 Helsinki, Finland
| | - Mikko Hakala
- Department
of Physics, University of Helsinki, P.O.B. 64, FI-00014 Helsinki, Finland
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27
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Loseva OV, Rodina TA, Ivanov AV. A fixation mode of gold(III) in the [Zn2{S2CN(iso-C3H7)2}4]-[AuCl4]−/2 M HCl chemisorption system: Supramolecular structure and thermal behavior of the heteropolynuclear complex ([H3O][Au3{S2CN(iso-C3H7)2}6][ZnCl4]2 · H2O) n. RUSS J COORD CHEM+ 2013. [DOI: 10.1134/s1070328413050060] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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28
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Lin W, Paesani F. Systematic Study of Structural and Thermodynamic Properties of HCl(H2O)n Clusters from Semiempirical Replica Exchange Simulations. J Phys Chem A 2013; 117:7131-41. [DOI: 10.1021/jp400629t] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wei Lin
- Department of Chemistry
and Biochemistry, University of California, San Diego 9500 Gilman Drive,
La Jolla, California 92093, United States
| | - Francesco Paesani
- Department of Chemistry
and Biochemistry, University of California, San Diego 9500 Gilman Drive,
La Jolla, California 92093, United States
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29
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Pham VT, Fulton JL. Ion-pairing in aqueous CaCl2and RbBr solutions: Simultaneous structural refinement of XAFS and XRD data. J Chem Phys 2013; 138:044201. [DOI: 10.1063/1.4775588] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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30
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Walewski Ł, Forbert H, Marx D. Revealing the Subtle Interplay of Thermal and Quantum Fluctuation Effects on Contact Ion Pairing in Microsolvated HCl. Chemphyschem 2012; 14:817-26. [DOI: 10.1002/cphc.201200695] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Revised: 10/23/2012] [Indexed: 11/07/2022]
Affiliation(s)
- Łukasz Walewski
- Lehrstuhl für Theoretische Chemie, Ruhr‐Universität Bochum, Universitätsstrasse 150, 44801 Bochum (Germany), Fax: (+49) 234‐32‐14045
| | - Harald Forbert
- Lehrstuhl für Theoretische Chemie, Ruhr‐Universität Bochum, Universitätsstrasse 150, 44801 Bochum (Germany), Fax: (+49) 234‐32‐14045
| | - Dominik Marx
- Lehrstuhl für Theoretische Chemie, Ruhr‐Universität Bochum, Universitätsstrasse 150, 44801 Bochum (Germany), Fax: (+49) 234‐32‐14045
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31
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Fulton JL, Balasubramanian M, Pham VT, Deverman GS. A variable ultra-short-pathlength solution cell for XAFS transmission spectroscopy of light elements. JOURNAL OF SYNCHROTRON RADIATION 2012; 19:949-953. [PMID: 23093754 DOI: 10.1107/s090904951203806x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Accepted: 09/04/2012] [Indexed: 06/01/2023]
Abstract
An X-ray absorption fine-structure spectroscopy (XAFS) cell that is suitable for solution-phase studies of the light elements in the series from Na(+) and Ca(2+) is described. This cell has an ultra-short pathlength that can be remotely adjusted using a miniature stepper-motor drive and thereby readily provides transmission pathlengths in the range from submicrometer to several hundred micrometers. The flexibility to vary the pathlength enables acquisition of high-quality XAFS spectra and also allows one to check for potential distortions in the spectra from thickness effects. The primary components are mostly commercially available optical parts. The performance of this device is demonstrated at the Cl K-edge (2.8 keV) for several different aqueous Cl(-) solutions.
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Affiliation(s)
- John L Fulton
- Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99354, USA.
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32
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Evidence for the Zundel-like Character of Oxoethylidenediphosphonic Acid Hydrate. MENDELEEV COMMUNICATIONS 2012. [DOI: 10.1016/j.mencom.2012.09.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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33
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Hassanali AA, Cuny J, Ceriotti M, Pickard CJ, Parrinello M. The Fuzzy Quantum Proton in the Hydrogen Chloride Hydrates. J Am Chem Soc 2012; 134:8557-69. [DOI: 10.1021/ja3014727] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ali A. Hassanali
- Department of Chemistry and
Applied Biosciences, ETH Zurich and Università della Svizzera Italiana, via G. Buffi 13, CH-6900 Lugano,
Switzerland
| | - Jérôme Cuny
- Department of Chemistry and
Applied Biosciences, ETH Zurich and Università della Svizzera Italiana, via G. Buffi 13, CH-6900 Lugano,
Switzerland
| | - Michele Ceriotti
- Physical and
Theoretical Chemistry
Laboratory, University of Oxford, South
Parks Road, United Kingdom
| | - Chris J. Pickard
- Department of Physics and Astronomy, University College London, Gower Street, United Kingdom
| | - Michele Parrinello
- Department of Chemistry and
Applied Biosciences, ETH Zurich and Università della Svizzera Italiana, via G. Buffi 13, CH-6900 Lugano,
Switzerland
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34
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D’Angelo P, Zitolo A, Migliorati V, Bodo E, Aquilanti G, Hazemann JL, Testemale D, Mancini G, Caminiti R. X-Ray absorption spectroscopy investigation of 1-alkyl-3-methylimidazolium bromide salts. J Chem Phys 2011; 135:074505. [DOI: 10.1063/1.3625920] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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35
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Jeon B, Sankaranarayanan SKRS, van Duin ACT, Ramanathan S. Atomistic insights into aqueous corrosion of copper. J Chem Phys 2011; 134:234706. [DOI: 10.1063/1.3599090] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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36
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Parent P, Lasne J, Marcotte G, Laffon C. HCl adsorption on ice at low temperature: a combined X-ray absorption, photoemission and infrared study. Phys Chem Chem Phys 2011; 13:7142-8. [DOI: 10.1039/c0cp02864a] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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37
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Fulton JL, Schenter GK, Baer MD, Mundy CJ, Dang LX, Balasubramanian M. Probing the Hydration Structure of Polarizable Halides: A Multiedge XAFS and Molecular Dynamics Study of the Iodide Anion. J Phys Chem B 2010; 114:12926-37. [DOI: 10.1021/jp106378p] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- John L. Fulton
- Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, Richland, Washington, 99354, Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, D-44780 Bochum, Germany, and Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439
| | - Gregory K. Schenter
- Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, Richland, Washington, 99354, Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, D-44780 Bochum, Germany, and Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439
| | - Marcel D. Baer
- Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, Richland, Washington, 99354, Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, D-44780 Bochum, Germany, and Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439
| | - Christopher J. Mundy
- Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, Richland, Washington, 99354, Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, D-44780 Bochum, Germany, and Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439
| | - Liem X. Dang
- Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, Richland, Washington, 99354, Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, D-44780 Bochum, Germany, and Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439
| | - Mahalingam Balasubramanian
- Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, Richland, Washington, 99354, Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, D-44780 Bochum, Germany, and Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439
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