1
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Novak N, Liang X, Kontogeorgis GM. Prediction of water anomalous properties by introducing the two-state theory in SAFT. J Chem Phys 2024; 160:104505. [PMID: 38465683 DOI: 10.1063/5.0186752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 02/14/2024] [Indexed: 03/12/2024] Open
Abstract
Water is one of the most abundant substances on earth, but it is still not entirely understood. It shows unusual behavior, and its properties present characteristic extrema unlike any other fluid. This unusual behavior has been linked to the two-state theory of water, which proposes that water forms different clusters, one with a high density and one with a low density, which may even form two distinct phases at low temperatures. Models incorporating the two-state theory manage to capture the unusual extrema of water, unlike traditional equations of state, which fail. In this work, we have derived the framework to incorporate the two-state theory of water into the Statistical-Associating-Fluid-Theory (SAFT). More specifically, we have assumed that water is an ideal solution of high density water molecules and low density water molecules that are in chemical equilibrium. Using this assumption, we have generalized the association term SAFT to allow for the simultaneous existence of the two water types, which have the same physical parameters but different association properties. We have incorporated the newly derived association term in the context of the Perturbed Chain-SAFT (PC-SAFT). The new model is referred to as PC-SAFT-Two-State (PC-SAFT-TS). Using PC-SAFT-TS, we have succeeded in predicting the characteristic extrema of water, such as its density and speed of sound maximum, etc., without loss of accuracy compared to the original PC-SAFT. This new framework is readily extended to mixtures, and PC-SAFT-TS manages to capture the solubility minimum of hydrocarbons in water in a straightforward manner.
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Affiliation(s)
- Nefeli Novak
- Center for Energy Resources Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark, 2800 Kgs Lyngby, Denmark
| | - Xiaodong Liang
- Center for Energy Resources Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark, 2800 Kgs Lyngby, Denmark
| | - Georgios M Kontogeorgis
- Center for Energy Resources Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark, 2800 Kgs Lyngby, Denmark
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2
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Muccignat DL, Stokes PW, Cocks DG, Gascooke JR, Jones DB, Brunger MJ, White RD. Simulating the Feasibility of Using Liquid Micro-Jets for Determining Electron–Liquid Scattering Cross-Sections. Int J Mol Sci 2022; 23:ijms23063354. [PMID: 35328775 PMCID: PMC8954820 DOI: 10.3390/ijms23063354] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 03/17/2022] [Indexed: 02/04/2023] Open
Abstract
The extraction of electron–liquid phase cross-sections (surface and bulk) is proposed through the measurement of (differential) energy loss spectra for electrons scattered from a liquid micro-jet. The signature physical elements of the scattering processes on the energy loss spectra are highlighted using a Monte Carlo simulation technique, originally developed for simulating electron transport in liquids. Machine learning techniques are applied to the simulated electron energy loss spectra, to invert the data and extract the cross-sections. The extraction of the elastic cross-section for neon was determined within 9% accuracy over the energy range 1–100 eV. The extension toward the simultaneous determination of elastic and ionisation cross-sections resulted in a decrease in accuracy, now to within 18% accuracy for elastic scattering and 1% for ionisation. Additional methods are explored to enhance the accuracy of the simultaneous extraction of liquid phase cross-sections.
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Affiliation(s)
- Dale L. Muccignat
- College of Science & Engineering, James Cook University, Townsville, QLD 4811, Australia; (P.W.S.); (R.D.W.)
- Correspondence:
| | - Peter W. Stokes
- College of Science & Engineering, James Cook University, Townsville, QLD 4811, Australia; (P.W.S.); (R.D.W.)
- Department of Medical Physics, Townsville University Hospital, Townsville, QLD 4814, Australia
| | - Daniel G. Cocks
- Research School of Physics and Engineering, Australian National University, Canberra, ACT 0200, Australia;
- Synchronous Technologies PTE LTD, 6 Raffles Quay, #11-07, Singapore 048580, Singapore
| | - Jason R. Gascooke
- College of Science & Engineering, Flinders University, Bedford Park, SA 5042, Australia; (J.R.G.); (D.B.J.); (M.J.B.)
| | - Darryl B. Jones
- College of Science & Engineering, Flinders University, Bedford Park, SA 5042, Australia; (J.R.G.); (D.B.J.); (M.J.B.)
| | - Michael J. Brunger
- College of Science & Engineering, Flinders University, Bedford Park, SA 5042, Australia; (J.R.G.); (D.B.J.); (M.J.B.)
- Institute of Actuarial Science and Data Analytics, Faculty of Business and Management, UCSI University, Kuala Lumpur 56000, Malaysia
| | - Ronald D. White
- College of Science & Engineering, James Cook University, Townsville, QLD 4811, Australia; (P.W.S.); (R.D.W.)
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3
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Camisasca G, Schlesinger D, Zhovtobriukh I, Pitsevich G, Pettersson LGM. A proposal for the structure of high- and low-density fluctuations in liquid water. J Chem Phys 2019; 151:034508. [PMID: 31325915 DOI: 10.1063/1.5100875] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Based on recent experimental data that can be interpreted as indicating the presence of specific structures in liquid water, we build and optimize two structural models which we compare with the available experimental data. To represent the proposed high-density liquid structures, we use a model consisting of chains of water molecules, and for low-density liquid, we investigate fused dodecahedra as templates for tetrahedral fluctuations. The computed infrared spectra of the models are in very good agreement with the extracted experimental spectra for the two components, while the extracted structures from molecular dynamics (MD) simulations give spectra that are intermediate between the experimentally derived spectra. Computed x-ray absorption and emission spectra as well as the O-O radial distribution functions of the proposed structures are not contradicted by experiment. The stability of the proposed dodecahedral template structures is investigated in MD simulations by seeding the starting structure, and remnants found to persist on an ∼30 ps time scale. We discuss the possible significance of such seeds in simulations and whether they can be viable candidates as templates for structural fluctuations below the compressibility minimum of liquid water.
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Affiliation(s)
- Gaia Camisasca
- Department of Physics, AlbaNova University Center, Stockholm University, S-106 91 Stockholm, Sweden
| | - Daniel Schlesinger
- Department of Environmental Science and Analytical Chemistry & Bolin Centre for Climate Research, Stockholm University, 114 18 Stockholm, Sweden
| | - Iurii Zhovtobriukh
- Department of Physics, AlbaNova University Center, Stockholm University, S-106 91 Stockholm, Sweden
| | - George Pitsevich
- Belarusian State University, Nezavisimosti Ave., 4, 220030 Minsk, Belarus
| | - Lars G M Pettersson
- Department of Physics, AlbaNova University Center, Stockholm University, S-106 91 Stockholm, Sweden
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4
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Pettersson LGM. A Two-State Picture of Water and the Funnel of Life. SPRINGER PROCEEDINGS IN PHYSICS 2019. [DOI: 10.1007/978-3-030-21755-6_1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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5
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Zhovtobriukh I, Besley NA, Fransson T, Nilsson A, Pettersson LGM. Relationship between x-ray emission and absorption spectroscopy and the local H-bond environment in water. J Chem Phys 2018; 148:144507. [DOI: 10.1063/1.5009457] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Affiliation(s)
- Iurii Zhovtobriukh
- FYSIKUM, Stockholm University, Albanova University Center, SE-106 91 Stockholm, Sweden
| | - Nicholas A. Besley
- School of Chemistry, The University of Nottingham, University Park, Nottingham NG72RD, United Kingdom
| | - Thomas Fransson
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025,
USA
| | - Anders Nilsson
- FYSIKUM, Stockholm University, Albanova University Center, SE-106 91 Stockholm, Sweden
| | - Lars G. M. Pettersson
- FYSIKUM, Stockholm University, Albanova University Center, SE-106 91 Stockholm, Sweden
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6
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Horikawa Y, Tokushima T, Takahashi O, Harada Y, Hiraya A, Shin S. Effect of amino group protonation on the carboxyl group in aqueous glycine observed by O 1s X-ray emission spectroscopy. Phys Chem Chem Phys 2018; 20:23214-23221. [DOI: 10.1039/c7cp08305j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The valence electronic structures of the amino acid glycine in aqueous solution were investigated in detail through X-ray emission spectroscopy at O 1s excitation under selective excitation conditions of the CO site in the carboxyl group.
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Affiliation(s)
| | | | - O. Takahashi
- Department of Chemistry
- Graduate School of Science
- Hiroshima University
- Higashi-Hiroshima
- Japan
| | - Y. Harada
- Institute for Solid State Physics
- The University of Tokyo
- Kashiwa
- Japan
- Synchrotron Radiation Research Organization
| | - A. Hiraya
- Department of Physical Science
- Hiroshima University
- Higashi-Hiroshima
- Japan
| | - S. Shin
- Institute for Solid State Physics
- The University of Tokyo
- Kashiwa
- Japan
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7
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Takahashi O, Ljungberg MP, Pettersson LGM. X-ray Emission Spectrum of Liquid Ethanol: Origin of Split Peaks. J Phys Chem B 2017; 121:11163-11168. [PMID: 29161039 DOI: 10.1021/acs.jpcb.7b09262] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The X-ray emission spectrum of liquid ethanol was calculated using density functional theory and a semiclassical approximation to the Kramers-Heisenberg formula including core-hole-induced dynamics. Our spectrum agrees well with the experimental spectrum. We found that the intensity ratio between the two peaks at 526 and 527 eV assigned as 10a' and 3a″ depends not only on the hydrogen bonding network around the target molecule but also on the intramolecular conformation. This effect is absent in liquid methanol and demonstrates the high sensitivity of X-ray emission to molecular structure. The dependence of spectral features on hydrogen-bonding as well as on dynamical effects following core excitation are also discussed.
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Affiliation(s)
- Osamu Takahashi
- Institute for Sustainable Sciences and Development, Hiroshima University , 1-3-1, Kagamiyama, Higashi-Hiroshima, 739-8526 Japan
| | - Mathias P Ljungberg
- Donostia International Physics Center , Paseo Manuel de Lardizabal, 4, E-20018 Donostia-San Sebastian, Spain
| | - Lars G M Pettersson
- Department of Physics, AlbaNova University Center, Stockholm University , S-106 91 Stockholm, Sweden
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8
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Ljungberg MP, Zhovtobriukh I, Takahashi O, Pettersson LGM. Core-hole-induced dynamical effects in the x-ray emission spectrum of liquid methanol. J Chem Phys 2017; 146:134506. [PMID: 28390372 DOI: 10.1063/1.4979656] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We compute the x-ray emission spectrum of liquid methanol, with the dynamical effects that result from the creation of the core hole included in a semiclassical way. Our method closely reproduces a fully quantum mechanical description of the dynamical effects for relevant one-dimensional models of the hydrogen-bonded methanol molecules. For the liquid, we find excellent agreement with the experimental spectrum, including the large isotope effect in the first split peak. The dynamical effects depend sensitively on the initial structure in terms of the local hydrogen-bonding (H-bonding) character: non-donor molecules contribute mainly to the high-energy peak while molecules with a strong donating H-bond contribute to the peak at lower energy. The spectrum thus reflects the initial structure mediated by the dynamical effects that are, however, seen to be crucial in order to reproduce the intensity distribution of the recently measured spectrum.
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Affiliation(s)
- M P Ljungberg
- Donostia International Physics Center, Paseo Manuel de Lardizabal, 4, E-20018 Donostia-San Sebastián, Spain
| | - I Zhovtobriukh
- FYSIKUM, Stockholm University, AlbaNova, S-106 91 Stockholm, Sweden
| | - O Takahashi
- Institute for Sustainable Sciences and Development, Hiroshima University, 1-3-1, Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - L G M Pettersson
- FYSIKUM, Stockholm University, AlbaNova, S-106 91 Stockholm, Sweden
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9
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Chemical bonding in aqueous hexacyano cobaltate from photon- and electron-detection perspectives. Sci Rep 2017; 7:40811. [PMID: 28098216 PMCID: PMC5241694 DOI: 10.1038/srep40811] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 12/12/2016] [Indexed: 01/22/2023] Open
Abstract
The electronic structure of the [Co(CN)6]3- complex dissolved in water is studied using X-ray spectroscopy techniques. By combining electron and photon detection methods from the solutions ionized or excited by soft X-rays we experimentally identify chemical bonding between the metal center and the CN ligand. Non-resonant photoelectron spectroscopy provides solute electron binding energies, and nitrogen 1 s and cobalt 2p resonant core-level photoelectron spectroscopy identifies overlap between metal and ligand orbitals. By probing resonances we are able to qualitatively determine the ligand versus metal character of the respective occupied and non-occupied orbitals, purely by experiment. For the same excitations we also detect the emitted X-rays, yielding the complementary resonant inelastic X-ray scattering spectra. For a quantitative interpretation of the spectra, we perform theoretical electronic-structure calculations. The latter provide both orbital energies and orbital character which are found to be in good agreement with experimental energies and with experimentally inferred orbital mixing. We also report calculated X-ray absorption spectra, which in conjunction with our orbital-structure analysis, enables us to quantify various bonding interactions with a particular focus on the water-solvent - ligand interaction and the strength of π-backbonding between metal and ligand.
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10
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Yin Z, Peters HB, Hahn U, Gonschior J, Mierwaldt D, Rajkovic I, Viefhaus J, Jooss C, Techert S. An endstation for resonant inelastic X-ray scattering studies of solid and liquid samples. JOURNAL OF SYNCHROTRON RADIATION 2017; 24:302-306. [PMID: 28009571 DOI: 10.1107/s1600577516016611] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 10/17/2016] [Indexed: 06/06/2023]
Abstract
A novel experimental setup is presented for resonant inelastic X-ray scattering investigations of solid and liquid samples in the soft X-ray region for studying the complex electronic configuration of (bio)chemical systems. The uniqueness of the apparatus is its high flexibility combined with optimal energy resolution and energy range ratio. The apparatus enables investigation of chemical analyses, which reflects the chemical imprints. The endstation is composed of a main sample chamber, a sample holder for either solid or liquid jet delivery system, and a soft X-ray grating spectrometer for 210-1250 eV with a resolving power of ∼1000. It combines for the first time liquid jet technology with a soft X-ray spectrometer based on the variable line spacing principle. This setup was commissioned at the soft X-ray beamline P04 at PETRA III of the Deutsches Elektronen-Synchrotron in Hamburg which is currently the most brilliant storage-ring-based X-ray radiation source in the world. The first results of liquid and solid samples show that this setup allows the detection of photons across an energy range of ∼300 eV. This covers simultaneously the emission lines of life-important elements like carbon, nitrogen and oxygen in a shot-based procedure.
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Affiliation(s)
- Zhong Yin
- Photon Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany
| | - Hans Bernhard Peters
- Photon Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany
| | - Ulrich Hahn
- Photon Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany
| | - Josef Gonschior
- Photon Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany
| | - Daniel Mierwaldt
- Institute for Material Physics, University of Goettingen, Friedrich-Hund-Platz 1, 37077 Goettingen, Germany
| | - Ivan Rajkovic
- Structural Dynamics of (Bio)chemical Systems, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Goettingen, Germany
| | - Jens Viefhaus
- Photon Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany
| | - Christian Jooss
- Institute for Material Physics, University of Goettingen, Friedrich-Hund-Platz 1, 37077 Goettingen, Germany
| | - Simone Techert
- Photon Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany
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11
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Kunnus K, Zhang W, Delcey MG, Pinjari RV, Miedema PS, Schreck S, Quevedo W, Schröder H, Föhlisch A, Gaffney KJ, Lundberg M, Odelius M, Wernet P. Viewing the Valence Electronic Structure of Ferric and Ferrous Hexacyanide in Solution from the Fe and Cyanide Perspectives. J Phys Chem B 2016; 120:7182-94. [PMID: 27380541 DOI: 10.1021/acs.jpcb.6b04751] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The valence-excited states of ferric and ferrous hexacyanide ions in aqueous solution were mapped by resonant inelastic X-ray scattering (RIXS) at the Fe L2,3 and N K edges. Probing of both the central Fe and the ligand N atoms enabled identification of the metal- and ligand-centered excited states, as well as ligand-to-metal and metal-to-ligand charge-transfer excited states. Ab initio calculations utilizing the RASPT2 method were used to simulate the Fe L2,3-edge RIXS spectra and enabled quantification of the covalencies of both occupied and empty orbitals of π and σ symmetry. We found that π back-donation in the ferric complex is smaller than that in the ferrous complex. This is evidenced by the relative amounts of Fe 3d character in the nominally 2π CN(-) molecular orbital of 7% and 9% in ferric and ferrous hexacyanide, respectively. Utilizing the direct sensitivity of Fe L3-edge RIXS to the Fe 3d character in the occupied molecular orbitals, we also found that the donation interactions are dominated by σ bonding. The latter was found to be stronger in the ferric complex, with an Fe 3d contribution to the nominally 5σ CN(-) molecular orbitals of 29% compared to 20% in the ferrous complex. These results are consistent with the notion that a higher charge at the central metal atom increases donation and decreases back-donation.
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Affiliation(s)
- Kristjan Kunnus
- Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Albert-Einstein-Strasse 15, 12489 Berlin, Germany.,Institut für Physik und Astronomie, Universität Potsdam , Karl-Liebknecht-Strasse 24/25, 14476 Potsdam, Germany
| | - Wenkai Zhang
- PULSE Institute, SLAC National Accelerator Laboratory , Menlo Park, California 94025, United States
| | - Mickaël G Delcey
- Department of Chemistry, Ångström Laboratory, Uppsala University , 75120 Uppsala, Sweden
| | - Rahul V Pinjari
- Department of Chemistry, Ångström Laboratory, Uppsala University , 75120 Uppsala, Sweden
| | - Piter S Miedema
- Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Albert-Einstein-Strasse 15, 12489 Berlin, Germany
| | - Simon Schreck
- Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Albert-Einstein-Strasse 15, 12489 Berlin, Germany.,Institut für Physik und Astronomie, Universität Potsdam , Karl-Liebknecht-Strasse 24/25, 14476 Potsdam, Germany
| | - Wilson Quevedo
- Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Albert-Einstein-Strasse 15, 12489 Berlin, Germany
| | - Henning Schröder
- Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Albert-Einstein-Strasse 15, 12489 Berlin, Germany.,Institut für Physik und Astronomie, Universität Potsdam , Karl-Liebknecht-Strasse 24/25, 14476 Potsdam, Germany
| | - Alexander Föhlisch
- Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Albert-Einstein-Strasse 15, 12489 Berlin, Germany.,Institut für Physik und Astronomie, Universität Potsdam , Karl-Liebknecht-Strasse 24/25, 14476 Potsdam, Germany
| | - Kelly J Gaffney
- PULSE Institute, SLAC National Accelerator Laboratory , Menlo Park, California 94025, United States
| | - Marcus Lundberg
- Department of Chemistry, Ångström Laboratory, Uppsala University , 75120 Uppsala, Sweden
| | - Michael Odelius
- Department of Physics, Stockholm University, AlbaNova University Centre , 10691 Stockholm, Sweden
| | - Philippe Wernet
- Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Albert-Einstein-Strasse 15, 12489 Berlin, Germany
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12
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Gallo P, Amann-Winkel K, Angell CA, Anisimov MA, Caupin F, Chakravarty C, Lascaris E, Loerting T, Panagiotopoulos AZ, Russo J, Sellberg JA, Stanley HE, Tanaka H, Vega C, Xu L, Pettersson LGM. Water: A Tale of Two Liquids. Chem Rev 2016; 116:7463-500. [PMID: 27380438 PMCID: PMC5424717 DOI: 10.1021/acs.chemrev.5b00750] [Citation(s) in RCA: 447] [Impact Index Per Article: 55.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
Water is the most abundant liquid
on earth and also the substance
with the largest number of anomalies in its properties. It is a prerequisite
for life and as such a most important subject of current research
in chemical physics and physical chemistry. In spite of its simplicity
as a liquid, it has an enormously rich phase diagram where different
types of ices, amorphous phases, and anomalies disclose a path that
points to unique thermodynamics of its supercooled liquid state that
still hides many unraveled secrets. In this review we describe the
behavior of water in the regime from ambient conditions to the deeply
supercooled region. The review describes simulations and experiments
on this anomalous liquid. Several scenarios have been proposed to
explain the anomalous properties that become strongly enhanced in
the supercooled region. Among those, the second critical-point scenario
has been investigated extensively, and at present most experimental
evidence point to this scenario. Starting from very low temperatures,
a coexistence line between a high-density amorphous phase and a low-density
amorphous phase would continue in a coexistence line between a high-density
and a low-density liquid phase terminating in a liquid–liquid
critical point, LLCP. On approaching this LLCP from the one-phase
region, a crossover in thermodynamics and dynamics can be found. This
is discussed based on a picture of a temperature-dependent balance
between a high-density liquid and a low-density liquid favored by,
respectively, entropy and enthalpy, leading to a consistent picture
of the thermodynamics of bulk water. Ice nucleation is also discussed,
since this is what severely impedes experimental investigation of
the vicinity of the proposed LLCP. Experimental investigation of stretched
water, i.e., water at negative pressure, gives access to a different
regime of the complex water diagram. Different ways to inhibit crystallization
through confinement and aqueous solutions are discussed through results
from experiments and simulations using the most sophisticated and
advanced techniques. These findings represent tiles of a global picture
that still needs to be completed. Some of the possible experimental
lines of research that are essential to complete this picture are
explored.
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Affiliation(s)
- Paola Gallo
- Dipartimento di Matematica e Fisica, Università Roma Tre , Via della Vasca Navale 84, 00146 Rome, Italy
| | - Katrin Amann-Winkel
- Department of Physics, AlbaNova University Center, Stockholm University , SE-106 91 Stockholm, Sweden
| | - Charles Austen Angell
- Department of Chemistry and Biochemistry, Arizona State University , Tempe, Arizona 85287, United States
| | - Mikhail Alexeevich Anisimov
- Institute for Physical Science and Technology and Department of Chemical and Biomolecular Engineering, University of Maryland , College Park, Maryland 20742, United States
| | - Frédéric Caupin
- Institut Lumière Matière, UMR5306 Université Claude Bernard Lyon 1-CNRS, Université de Lyon, Institut Universitaire de France , 69622 Villeurbanne, France
| | - Charusita Chakravarty
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas , New Delhi 110016, India
| | - Erik Lascaris
- Center for Polymer Studies and Department of Physics, Boston University , Boston, Massachusetts 02215, United States
| | - Thomas Loerting
- Institute of Physical Chemistry, University of Innsbruck , 6020 Innsbruck, Austria
| | | | - John Russo
- Institute of Industrial Science, University of Tokyo , 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan.,School of Mathematics, University of Bristol , Bristol BS8 1TW, United Kingdom
| | - Jonas Alexander Sellberg
- Biomedical and X-ray Physics, Department of Applied Physics, AlbaNova University Center, KTH Royal Institute of Technology , SE-106 91 Stockholm, Sweden
| | - Harry Eugene Stanley
- Center for Polymer Studies and Department of Physics, Boston University , Boston, Massachusetts 02215, United States
| | - Hajime Tanaka
- Institute of Industrial Science, University of Tokyo , 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan
| | - Carlos Vega
- Departamento de Quimica Fisica, Facultad de Ciencias Quimicas, Universidad Complutense de Madrid , 28040 Madrid, Spain
| | - Limei Xu
- International Centre for Quantum Materials and School of Physics, Peking University , Beijing 100871, China.,Collaborative Innovation Center of Quantum Matter, Beijing 100871, China
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13
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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: 109] [Impact Index Per Article: 13.6] [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.
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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
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14
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Golnak R, Xiao J, Atak K, Unger I, Seidel R, Winter B, Aziz EF. Undistorted X-ray Absorption Spectroscopy Using s-Core-Orbital Emissions. J Phys Chem A 2016; 120:2808-14. [PMID: 27101344 DOI: 10.1021/acs.jpca.6b01699] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Detection of secondary emissions, fluorescence yield (FY), or electron yield (EY), originating from the relaxation processes upon X-ray resonant absorption has been widely adopted for X-ray absorption spectroscopy (XAS) measurements when the primary absorption process cannot be probed directly in transmission mode. Various spectral distortion effects inherent in the relaxation processes and in the subsequent transportation of emitted particles (electron or photon) through the sample, however, undermine the proportionality of the emission signals to the X-ray absorption coefficient. In the present study, multiple radiative (FY) and nonradiative (EY) decay channels have been experimentally investigated on a model system, FeCl3 aqueous solution, at the excitation energy of the Fe L-edge. The systematic comparisons between the experimental spectra taken from various decay channels, as well as the comparison with the theoretically simulated Fe L-edge XA spectrum that involves only the absorption process, indicate that the detection of the Fe 3s → 2p partial fluorescence yield (PFY) gives rise to the true Fe L-edge XA spectrum. The two key characteristics generalized from this particular decay channel-zero orbital angular momentum (i.e., s orbital) and core-level emission-set a guideline for obtaining undistorted X-ray absorption spectra in the future.
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Affiliation(s)
- Ronny Golnak
- Institute of Methods for Material Development, Helmholtz-Zentrum Berlin für Materialien und Energie (HZB) , Albert-Einstein-Strasse 15, D-12489 Berlin, Germany.,Department of Chemistry, Free University Berlin , Takustrasse 3, 14195 Berlin, Germany
| | - Jie Xiao
- Institute of Methods for Material Development, Helmholtz-Zentrum Berlin für Materialien und Energie (HZB) , Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
| | - Kaan Atak
- Institute of Methods for Material Development, Helmholtz-Zentrum Berlin für Materialien und Energie (HZB) , Albert-Einstein-Strasse 15, D-12489 Berlin, Germany.,Department of Physics, Free University Berlin , Arnimallee 14, 14195 Berlin, Germany
| | - Isaak Unger
- Institute of Methods for Material Development, Helmholtz-Zentrum Berlin für Materialien und Energie (HZB) , Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
| | - Robert Seidel
- Institute of Methods for Material Development, Helmholtz-Zentrum Berlin für Materialien und Energie (HZB) , Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
| | - Bernd Winter
- Institute of Methods for Material Development, Helmholtz-Zentrum Berlin für Materialien und Energie (HZB) , Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
| | - Emad F Aziz
- Institute of Methods for Material Development, Helmholtz-Zentrum Berlin für Materialien und Energie (HZB) , Albert-Einstein-Strasse 15, D-12489 Berlin, Germany.,Department of Physics, Free University Berlin , Arnimallee 14, 14195 Berlin, Germany
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15
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Joint Analysis of Radiative and Non-Radiative Electronic Relaxation Upon X-ray Irradiation of Transition Metal Aqueous Solutions. Sci Rep 2016; 6:24659. [PMID: 27098342 PMCID: PMC4838826 DOI: 10.1038/srep24659] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 04/01/2016] [Indexed: 11/09/2022] Open
Abstract
L-edge soft X-ray spectroscopy has been proven to be a powerful tool to unravel the peculiarities of electronic structure of transition metal compounds in solution. However, the X-ray absorption spectrum is often probed in the total or partial fluorescence yield modes, what leads to inherent distortions with respect to the true transmission spectrum. In the present work, we combine photon- and electron-yield experimental techniques with multi-reference first principles calculations. Exemplified for the prototypical FeCl2 aqueous solution we demonstrate that the partial yield arising from the Fe3s → 2p relaxation is a more reliable probe of the absorption spectrum than the Fe3d → 2p one. For the bonding-relevant 3d → 2p channel we further provide the basis for the joint analysis of resonant photoelectron and inelastic X-ray scattering spectra. Establishing the common energy reference allows to assign both spectra using the complementary information provided through electron-out and photon-out events.
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16
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Slavíček P, Kryzhevoi NV, Aziz EF, Winter B. Relaxation Processes in Aqueous Systems upon X-ray Ionization: Entanglement of Electronic and Nuclear Dynamics. J Phys Chem Lett 2016; 7:234-243. [PMID: 26712083 DOI: 10.1021/acs.jpclett.5b02665] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The knowledge of primary processes following the interaction of high-energy radiation with molecules in liquid phase is rather limited. In the present Perspective, we report on a newly discovered type of relaxation process involving simultaneous autoionization and proton transfer between adjacent molecules, so-called proton transfer mediated charge separation (PTM-CS) process. Within PTM-CS, transients with a half-transferred proton are formed within a few femtoseconds after the core-level ionization event. Subsequent nonradiative decay of the highly nonequilibrium transients leads to a series of reactive species, which have not been considered in any high-energy radiation process in water. Nonlocal electronic decay processes are surprisingly accelerated upon proton dynamics. Such strong coupling of electronic and nuclear dynamics is a general phenomenon for hydrogen-bonded systems, however, its probability correlates strongly with hydration geometry. We suggest that the newly observed processes will impact future high-energy radiation-chemistry-relevant modeling, and we envision application of autoionization spectroscopy for identification of solution structure details.
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Affiliation(s)
- Petr Slavíček
- Department of Physical Chemistry, University of Chemistry and Technology , Technická 5, 16628 Prague, Czech Republic
| | - Nikolai V Kryzhevoi
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg , Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany
| | - Emad F Aziz
- Helmholtz-Zentrum Berlin für Materialien und Energie, Methods for Material Development , Albert-Einstein-Straße 15, D-12489 Berlin, Germany
- Department of Physics, Freie Universität Berlin , Arnimallee 14, D-14159 Berlin, Germany
| | - Bernd Winter
- Helmholtz-Zentrum Berlin für Materialien und Energie, Methods for Material Development , Albert-Einstein-Straße 15, D-12489 Berlin, Germany
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17
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Sasaki Y, Horikawa Y, Tokushima T, Okada K, Oura M, Aida M. Hydration structure of trimethylamine N-oxide in aqueous solutions revealed by soft X-ray emission spectroscopy and chemometric analysis. Phys Chem Chem Phys 2016; 18:27648-27653. [DOI: 10.1039/c6cp03750j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Soft X-ray emission spectroscopy coupled with a quantitative spectral analysis offers a useful technique for probing the solvation structure around the solute which interacts strongly with the solvent.
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Affiliation(s)
- Yuu Sasaki
- Department of Chemistry
- Graduate School of Science
- Hiroshima University
- Higashi-Hiroshima
- Japan
| | - Yuka Horikawa
- RIKEN SPring-8 Center
- Sayo
- Japan
- Department of Physics and Information Science
- Faculty of Science
| | | | - Kazumasa Okada
- Department of Chemistry
- Graduate School of Science
- Hiroshima University
- Higashi-Hiroshima
- Japan
| | | | - Misako Aida
- Department of Chemistry
- Graduate School of Science
- Hiroshima University
- Higashi-Hiroshima
- Japan
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18
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Golnak R, Xiao J, Atak K, Stevens JS, Gainar A, Schroeder SLM, Aziz EF. Intermolecular bonding of hemin in solution and in solid state probed by N K-edge X-ray spectroscopies. Phys Chem Chem Phys 2015; 17:29000-6. [PMID: 26455378 DOI: 10.1039/c5cp04529k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
X-ray absorption/emission spectroscopy (XAS/XES) at the N K-edge of iron protoporphyrin IX chloride (FePPIX-Cl, or hemin) has been carried out for dissolved monomers in DMSO, dimers in water and for the solid state. This sequence of samples permits identification of characteristic spectral features associated with the hemin intermolecular bonding. These characteristic features are further analyzed and understood at the molecular orbital (MO) level based on the DFT calculations.
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Affiliation(s)
- Ronny Golnak
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Institute of Methods for Material Development, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, D-12489 Berlin, Germany. and Fachbereich Chemie, Freie Universität Berlin, Takustrasse 3, D-14195 Berlin, Germany
| | - Jie Xiao
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Institute of Methods for Material Development, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, D-12489 Berlin, Germany.
| | - Kaan Atak
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Institute of Methods for Material Development, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, D-12489 Berlin, Germany. and Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | - Joanna S Stevens
- School of Chemical Engineering and Analytical Science, The University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Adrian Gainar
- School of Chemical Engineering and Analytical Science, The University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Sven L M Schroeder
- School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UK and DIAMOND Light Source Ltd, Harwell Science and Innovation Campus, Chilton, Didcot OX11 0DE, UK
| | - Emad F Aziz
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Institute of Methods for Material Development, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, D-12489 Berlin, Germany. and Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
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19
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Brandenburg T, Petit T, Neubauer A, Atak K, Nagasaka M, Golnak R, Kosugi N, Aziz EF. Fluorination-dependent molecular orbital occupancy in ring-shaped perfluorocarbons. Phys Chem Chem Phys 2015; 17:18337-43. [PMID: 26105104 DOI: 10.1039/c5cp01254f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Perfluorocarbons are a family of molecules consisting mainly of carbon and fluorine atoms. They have interesting chemical properties and have diverse applications in biomedicine, physical chemistry and polymer science. In this work, carbon K-edge absorption and emission spectra of liquid decalin are presented and compared to perfluorodecalin. A comprehensive picture of the electronic structure of decalin is provided based on soft X-ray absorption and emission spectroscopies. Experimental data are compared to theoretical time-dependent density functional theory for the hydrocarbon, the perfluorocarbon and the stepwise fluorinated derivatives. We observed a molecular orbital change from unoccupied to occupied orbitals for perfluorodecalin, which was induced through the fluorination process.
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Affiliation(s)
- Tim Brandenburg
- Institute of Methods for Material Development, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Straße 15, 12489 Berlin, Germany.
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20
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Cholach AR, Tapilin VM. Mechanism of conjugate electron transitions on the surface of a solid. J STRUCT CHEM+ 2015. [DOI: 10.1134/s0022476615030282] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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Stevens JS, Gainar A, Suljoti E, Xiao J, Golnak R, Aziz EF, Schroeder SLM. Chemical Speciation and Bond Lengths of Organic Solutes by Core-Level Spectroscopy: pH and Solvent Influence on p-Aminobenzoic Acid. Chemistry 2015; 21:7256-63. [PMID: 25788101 PMCID: PMC4517158 DOI: 10.1002/chem.201405635] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Indexed: 11/18/2022]
Abstract
Through X-ray absorption and emission spectroscopies, the chemical, electronic and structural properties of organic species in solution can be observed. Near-edge X-ray absorption fine structure (NEXAFS) and resonant inelastic X-ray scattering (RIXS) measurements at the nitrogen K-edge of para-aminobenzoic acid reveal both pH- and solvent-dependent variations in the ionisation potential (IP), 1s→π* resonances and HOMO–LUMO gap. These changes unequivocally identify the chemical species (neutral, cationic or anionic) present in solution. It is shown how this incisive chemical state sensitivity is further enhanced by the possibility of quantitative bond length determination, based on the analysis of chemical shifts in IPs and σ* shape resonances in the NEXAFS spectra. This provides experimental access to detecting even minor variations in the molecular structure of solutes in solution, thereby providing an avenue to examining computational predictions of solute properties and solute–solvent interactions.
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Affiliation(s)
- Joanna S Stevens
- School of Chemical Engineering and Analytical Science, School of Chemistry, The University of Manchester, Oxford Road, Manchester M13 9PL (UK)
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22
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Pietzsch A, Hennies F, Miedema PS, Kennedy B, Schlappa J, Schmitt T, Strocov VN, Föhlisch A. Snapshots of the fluctuating hydrogen bond network in liquid water on the sub-femtosecond timescale with vibrational resonant inelastic x-ray scattering. PHYSICAL REVIEW LETTERS 2015; 114:088302. [PMID: 25768783 DOI: 10.1103/physrevlett.114.088302] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Indexed: 05/24/2023]
Abstract
Liquid water molecules interact strongly with each other, forming a fluctuating hydrogen bond network and thereby giving rise to the anomalous phase diagram of liquid water. Consequently, symmetric and asymmetric water molecules have been found in the picosecond time average with IR and optical Raman spectroscopy. With subnatural linewidth resonant inelastic x-ray scattering (RIXS) at vibrational resolution, we take sub-femtosecond snapshots of the electronic and structural properties of water molecules in the hydrogen bond network. We derive a strong dominance of nonsymmetric molecules in liquid water in contrast to the gas phase on the sub-femtosecond timescale of RIXS and determine the fraction of highly asymmetrically distorted molecules.
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Affiliation(s)
- A Pietzsch
- Institute for Methods and Instrumentation in Synchrotron Radiation Research G-ISRR, Helmholtz-Zentrum für Materialien und Energie GmbH, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
| | - F Hennies
- MAX IV Laboratory, Box 118, 22100 Lund, Sweden
| | - P S Miedema
- Institute for Methods and Instrumentation in Synchrotron Radiation Research G-ISRR, Helmholtz-Zentrum für Materialien und Energie GmbH, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
| | - B Kennedy
- Institute for Methods and Instrumentation in Synchrotron Radiation Research G-ISRR, Helmholtz-Zentrum für Materialien und Energie GmbH, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
| | - J Schlappa
- Institute for Methods and Instrumentation in Synchrotron Radiation Research G-ISRR, Helmholtz-Zentrum für Materialien und Energie GmbH, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
| | - T Schmitt
- Swiss Light Source, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - V N Strocov
- Swiss Light Source, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - A Föhlisch
- Institute for Methods and Instrumentation in Synchrotron Radiation Research G-ISRR, Helmholtz-Zentrum für Materialien und Energie GmbH, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- Fakultät für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Strasse 24-25, 14476 Potsdam, Germany
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23
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Golnak R, Xiao J, Atak K, Khan M, Suljoti E, Aziz EF. Local energy gap opening induced by hemin dimerization in aqueous solution. J Phys Chem B 2015; 119:3058-62. [PMID: 25594240 DOI: 10.1021/jp509966q] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The local electronic structure of the hemin Fe center has been investigated by X-ray absorption and emission spectroscopy (XAS/XES) for hemin in aqueous solution where hemin dimerization occurs. The XAS and XES spectra of the hemin dimer were then compared with those of the hemin monomer we previously studied in dimethyl sulfoxide solution. A local energy gap opening at the Fe sites was observed for the hemin dimer, with the occupied valence states shifted to lower binding energies, while the unoccupied valence states share the same energies as the hemin monomer. Such a gap opening is argued to originate from the Fe 3d orbital localization induced by hemin dimerization in aqueous solution.
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Affiliation(s)
- Ronny Golnak
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Institute of Methods for Material Development, Helmholtz-Zentrum Berlin für Materialien und Energie , Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
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24
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Sellberg JA, McQueen TA, Laksmono H, Schreck S, Beye M, DePonte DP, Kennedy B, Nordlund D, Sierra RG, Schlesinger D, Tokushima T, Zhovtobriukh I, Eckert S, Segtnan VH, Ogasawara H, Kubicek K, Techert S, Bergmann U, Dakovski GL, Schlotter WF, Harada Y, Bogan MJ, Wernet P, Föhlisch A, Pettersson LGM, Nilsson A. X-ray emission spectroscopy of bulk liquid water in “no-man’s land”. J Chem Phys 2015; 142:044505. [DOI: 10.1063/1.4905603] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Affiliation(s)
- Jonas A. Sellberg
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory,2575 Sand Hill Road, Menlo Park, California 94025, USA
- Department of Physics, AlbaNova University Center, Stockholm University, S-106 91 Stockholm, Sweden
| | - Trevor A. McQueen
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory,2575 Sand Hill Road, Menlo Park, California 94025, USA
- Department of Chemistry, Stanford University, Stanford, California 94305, USA
| | - Hartawan Laksmono
- PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - Simon Schreck
- Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Straße 15, 12489 Berlin, Germany
- Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Straße 24–25, 14476 Potsdam, Germany
| | - Martin Beye
- Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Straße 15, 12489 Berlin, Germany
| | - Daniel P. DePonte
- Center for Free-Electron Laser Science, DESY, Notkestraße 85, 22607 Hamburg, Germany
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | | | - Dennis Nordlund
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, P.O. Box 20450, Stanford, California 94309, USA
| | - Raymond G. Sierra
- PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - Daniel Schlesinger
- Department of Physics, AlbaNova University Center, Stockholm University, S-106 91 Stockholm, Sweden
| | | | - Iurii Zhovtobriukh
- Department of Physics, AlbaNova University Center, Stockholm University, S-106 91 Stockholm, Sweden
| | - Sebastian Eckert
- Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Straße 15, 12489 Berlin, Germany
| | - Vegard H. Segtnan
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory,2575 Sand Hill Road, Menlo Park, California 94025, USA
- Nofima AS, N-1430 Ås, Norway
| | - Hirohito Ogasawara
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, P.O. Box 20450, Stanford, California 94309, USA
| | - Katharina Kubicek
- Photon Science, DESY, Notkestraße 85, 22607 Hamburg, Germany
- IFG Structural Dynamics of (Bio)chemical Systems, Max Planck Institute for Biophysical Chemistry, Am Faßberg 11, 37070 Göttingen, Germany
| | - Simone Techert
- IFG Structural Dynamics of (Bio)chemical Systems, Max Planck Institute for Biophysical Chemistry, Am Faßberg 11, 37070 Göttingen, Germany
- Advanced Study Group of the MPG, CFEL, Notkestraße 85, 22853 Hamburg, Germany
| | - Uwe Bergmann
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - Georgi L. Dakovski
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - William F. Schlotter
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - Yoshihisa Harada
- Institute for Solid State Physics (ISSP), University of Tokyo, Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
- Synchrotron Radiation Research Organization, University of Tokyo, Sayo-cho, Sayo, Hyogo 679-5198, Japan
| | - Michael J. Bogan
- PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - Philippe Wernet
- Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Straße 15, 12489 Berlin, Germany
| | - Alexander Föhlisch
- Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Straße 15, 12489 Berlin, Germany
- Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Straße 24–25, 14476 Potsdam, Germany
| | - Lars G. M. Pettersson
- Department of Physics, AlbaNova University Center, Stockholm University, S-106 91 Stockholm, Sweden
| | - Anders Nilsson
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory,2575 Sand Hill Road, Menlo Park, California 94025, USA
- Department of Physics, AlbaNova University Center, Stockholm University, S-106 91 Stockholm, Sweden
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, P.O. Box 20450, Stanford, California 94309, USA
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25
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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.
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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
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26
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Brandenburg T, Agåker M, Atak K, Pflüger M, Schwanke C, Petit T, Lange KM, Rubensson JE, Aziz EF. The electronic structure of perfluorodecalin studied by soft X-ray spectroscopy and electronic structure calculations. Phys Chem Chem Phys 2014; 16:23379-85. [PMID: 25263001 DOI: 10.1039/c4cp03153a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Fluorine and carbon K absorption and emission spectra of liquid perfluorodecalin are presented and analyzed in terms of density functional calculations-configuration interaction. A comprehensive view of the electronic structure is given, and site-specific intramolecular interactions are investigated in detail. It is found that, while the outer fluorine atoms have excess charge in the ground state, the lowest excitations must be associated with charge transfer towards the inner carbon atoms.
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Affiliation(s)
- T Brandenburg
- Institute of Methods for Material Development, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Straße 15, 12489 Berlin, Germany.
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27
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Schwanke C, Golnak R, Xiao J, Lange KM. Electrochemical flowcell for in-situ investigations by soft x-ray absorption and emission spectroscopy. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2014; 85:103120. [PMID: 25362384 DOI: 10.1063/1.4899063] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A new liquid flow-cell designed for electronic structure investigations at the liquid-solid interface by soft X-ray absorption and emission spectroscopy is presented. A thin membrane serves simultaneously as a substrate for the working electrode and solid state samples as well as for separating the liquid from the surrounding vacuum conditions. In combination with counter and reference electrodes this approach allows in-situ studies of electrochemical deposition processes and catalytic reactions at the liquid-solid interface in combination with potentiostatic measurements. As model system in-situ monitoring of the deposition process of Co metal from a 10 mM CoCl2 aqueous solution by X-ray absorption and emission spectroscopy is presented.
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Affiliation(s)
- C Schwanke
- Helmholtz-Zentrum Berlin für Materialien und Energie, Institute of Solar Fuels, Albert-Einstein-Straße 15, 12489 Berlin, Germany
| | - R Golnak
- Helmholtz-Zentrum Berlin für Materialien und Energie, Institute of Methods for Material Development, Albert-Einstein-Straße 15, 12489 Berlin, Germany
| | - J Xiao
- Helmholtz-Zentrum Berlin für Materialien und Energie, Institute of Methods for Material Development, Albert-Einstein-Straße 15, 12489 Berlin, Germany
| | - K M Lange
- Helmholtz-Zentrum Berlin für Materialien und Energie, Institute of Solar Fuels, Albert-Einstein-Straße 15, 12489 Berlin, Germany
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28
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Schreck S, Pietzsch A, Kunnus K, Kennedy B, Quevedo W, Miedema PS, Wernet P, Föhlisch A. Dynamics of the OH group and the electronic structure of liquid alcohols. STRUCTURAL DYNAMICS (MELVILLE, N.Y.) 2014; 1:054901. [PMID: 26798783 PMCID: PMC4711620 DOI: 10.1063/1.4897981] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Accepted: 09/30/2014] [Indexed: 05/07/2023]
Abstract
In resonant inelastic soft x-ray scattering (RIXS) from molecular and liquid systems, the interplay of ground state structural and core-excited state dynamical contributions leads to complex spectral shapes that partially allow for ambiguous interpretations. In this work, we dissect these contributions in oxygen K-edge RIXS from liquid alcohols. We use the scattering into the electronic ground state as an accurate measure of nuclear dynamics in the intermediate core-excited state of the RIXS process. We determine the characteristic time in the core-excited state until nuclear dynamics give a measurable contribution to the RIXS spectral profiles to τ dyn = 1.2 ± 0.8 fs. By detuning the excitation energy below the absorption resonance we reduce the effective scattering time below τ dyn, and hence suppress these dynamical contributions to a minimum. From the corresponding RIXS spectra of liquid methanol, we retrieve the "dynamic-free" density of states and find that it is described solely by the electronic states of the free methanol molecule. From this and from the comparison of normal and deuterated methanol, we conclude that the split peak structure found in the lone-pair emission region at non-resonant excitation originates from dynamics in the O-H bond in the core-excited state. We find no evidence that this split peak feature is a signature of distinct ground state structural complexes in liquid methanol. However, we demonstrate how changes in the hydrogen bond coordination within the series of linear alcohols from methanol to hexanol affect the split peak structure in the liquid alcohols.
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Affiliation(s)
| | - Annette Pietzsch
- Institute for Methods and Instrumentation for Synchrotron Radiation Research , Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Strasse 15, Berlin 12489, Germany
| | | | - Brian Kennedy
- Institute for Methods and Instrumentation for Synchrotron Radiation Research , Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Strasse 15, Berlin 12489, Germany
| | - Wilson Quevedo
- Institute for Methods and Instrumentation for Synchrotron Radiation Research , Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Strasse 15, Berlin 12489, Germany
| | - Piter S Miedema
- Institute for Methods and Instrumentation for Synchrotron Radiation Research , Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Strasse 15, Berlin 12489, Germany
| | - Philippe Wernet
- Institute for Methods and Instrumentation for Synchrotron Radiation Research , Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Strasse 15, Berlin 12489, Germany
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29
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Atak K, Golnak R, Xiao J, Suljoti E, Pflüger M, Brandenburg T, Winter B, Aziz EF. Electronic Structure of Hemin in Solution Studied by Resonant X-ray Emission Spectroscopy and Electronic Structure Calculations. J Phys Chem B 2014; 118:9938-43. [DOI: 10.1021/jp505129m] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Kaan Atak
- Joint
Laboratory for Ultrafast Dynamics in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, 12489 Berlin, Germany
- Fachbereich
Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | - Ronny Golnak
- Joint
Laboratory for Ultrafast Dynamics in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, 12489 Berlin, Germany
- Fachbereich
Chemie, Freie Universität Berlin, Takustrasse 3, D-14195 Berlin, Germany
| | - Jie Xiao
- Joint
Laboratory for Ultrafast Dynamics in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, 12489 Berlin, Germany
| | - Edlira Suljoti
- Joint
Laboratory for Ultrafast Dynamics in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, 12489 Berlin, Germany
| | - Mika Pflüger
- Joint
Laboratory for Ultrafast Dynamics in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, 12489 Berlin, Germany
- Fachbereich
Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | - Tim Brandenburg
- Joint
Laboratory for Ultrafast Dynamics in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, 12489 Berlin, Germany
- Fachbereich
Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | - Bernd Winter
- Joint
Laboratory for Ultrafast Dynamics in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, 12489 Berlin, Germany
| | - Emad F. Aziz
- Joint
Laboratory for Ultrafast Dynamics in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, 12489 Berlin, Germany
- Fachbereich
Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
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30
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Xiao J, Golnak R, Atak K, Pflüger M, Pohl M, Suljoti E, Winter B, Aziz EF. Assistance of the Iron Porphyrin Ligands to the Binding Interaction between the Fe Center and Small Molecules in Solution. J Phys Chem B 2014; 118:9371-7. [DOI: 10.1021/jp5023339] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Jie Xiao
- Joint
Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
| | - Ronny Golnak
- Joint
Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
- Fachbereich
Biologie, Chemie, Pharmazie, Freie Universität Berlin, Takustrasse 3, D-14195 Berlin, Germany
| | - Kaan Atak
- Joint
Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
- Fachbereich
Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | - Mika Pflüger
- Joint
Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
- Fachbereich
Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | - Marvin Pohl
- Joint
Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
- Fachbereich
Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | - Edlira Suljoti
- Joint
Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
| | - Bernd Winter
- Joint
Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
| | - Emad F. Aziz
- Joint
Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
- Fachbereich
Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
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31
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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
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32
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Petit T, Lange KM, Conrad G, Yamamoto K, Schwanke C, Hodeck KF, Dantz M, Brandenburg T, Suljoti E, Aziz EF. Probing ion-specific effects on aqueous acetate solutions: Ion pairing versus water structure modifications. STRUCTURAL DYNAMICS (MELVILLE, N.Y.) 2014; 1:034901. [PMID: 26798780 PMCID: PMC4711606 DOI: 10.1063/1.4884600] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Accepted: 06/10/2014] [Indexed: 05/22/2023]
Abstract
The effect of monovalent cations (Li(+), K(+), NH4 (+), Na(+)) on the water structure in aqueous chloride and acetate solutions was characterized by oxygen K-edge X-ray absorption spectroscopy (XAS), X-ray emission spectroscopy, and resonant inelastic X-ray scattering (RIXS) of a liquid microjet. We show ion- and counterion dependent effects on the emission spectra of the oxygen K-edge, which we attribute to modifications of the hydrogen bond network of water. For acetates, ion pairing with carboxylates was also probed selectively by XAS and RIXS. We correlate our experimental results to speciation data and to the salting-out properties of the cations.
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Affiliation(s)
- Tristan Petit
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) , Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
| | - Kathrin M Lange
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) , Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
| | - Gerrit Conrad
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) , Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
| | | | - Christoph Schwanke
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) , Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
| | - Kai F Hodeck
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) , Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
| | | | | | - Edlira Suljoti
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) , Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
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33
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Engel N, Bokarev SI, Suljoti E, Garcia-Diez R, Lange KM, Atak K, Golnak R, Kothe A, Dantz M, Kühn O, Aziz EF. Chemical Bonding in Aqueous Ferrocyanide: Experimental and Theoretical X-ray Spectroscopic Study. J Phys Chem B 2014; 118:1555-63. [DOI: 10.1021/jp411782y] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Nicholas Engel
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- Department
of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Sergey I. Bokarev
- Institut
für
Physik, Universität Rostock, Universitätsplatz 3, 18055 Rostock, Germany
| | - Edlira Suljoti
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- Department
of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Raul Garcia-Diez
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- Department
of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Kathrin M. Lange
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- Department
of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Kaan Atak
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- Department
of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Ronny Golnak
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- Department
of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Alexander Kothe
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- Department
of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Marcus Dantz
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- Department
of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Oliver Kühn
- Institut
für
Physik, Universität Rostock, Universitätsplatz 3, 18055 Rostock, Germany
| | - Emad F. Aziz
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- Department
of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
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34
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Marmiroli B, Cacho-Nerin F, Sartori B, Pérez J, Amenitsch H. Thorough small-angle X-ray scattering analysis of the instability of liquid micro-jets in air. JOURNAL OF SYNCHROTRON RADIATION 2014; 21:193-202. [PMID: 24365936 DOI: 10.1107/s1600577513027951] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Accepted: 10/11/2013] [Indexed: 06/03/2023]
Abstract
Liquid jets are of interest, both for their industrial relevance and for scientific applications (more important, in particular for X-rays, after the advent of free-electron lasers that require liquid jets as sample carrier). Instability mechanisms have been described theoretically and by numerical simulation, but confirmed by few experimental techniques. In fact, these are mainly based on cameras, which is limited by the imaging resolution, and on light scattering, which is hindered by absorption, reflection, Mie scattering and multiple scattering due to complex air/liquid interfaces during jet break-up. In this communication it is demonstrated that synchrotron small-angle X-ray scattering (SAXS) can give quantitative information on liquid jet dynamics at the nanoscale, by detecting time-dependent morphology and break-up length. Jets ejected from circular tubes of different diameters (100-450 µm) and speeds (0.7-21 m s(-1)) have been explored to cover the Rayleigh and first wind-induced regimes. Various solvents (water, ethanol, 2-propanol) and their mixtures have been examined. The determination of the liquid jet behaviour becomes essential, as it provides background data in subsequent studies of chemical and biological reactions using SAXS or X-ray diffraction based on synchrotron radiation and free-electron lasers.
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Affiliation(s)
- Benedetta Marmiroli
- Institute of Inorganic Chemistry, Graz University of Technology, Stremayrgasse 9/IV, Graz 8010, Austria
| | - Fernando Cacho-Nerin
- Institute of Inorganic Chemistry, Graz University of Technology, Stremayrgasse 9/IV, Graz 8010, Austria
| | - Barbara Sartori
- Institute of Inorganic Chemistry, Graz University of Technology, Stremayrgasse 9/IV, Graz 8010, Austria
| | - Javier Pérez
- Beamline SWING, Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif sur Yvette, France
| | - Heinz Amenitsch
- Institute of Inorganic Chemistry, Graz University of Technology, Stremayrgasse 9/IV, Graz 8010, Austria
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35
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The electronic structure of carbonate ion in aqueous solution studied by soft X-ray emission spectroscopy. J Mol Liq 2014. [DOI: 10.1016/j.molliq.2013.06.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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36
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Tokushima T, Horikawa Y, Takahashi O, Arai H, Sadakane K, Harada Y, Takata Y, Shin S. Solvation dependence of valence electronic states of water diluted in organic solvents probed by soft X-ray spectroscopy. Phys Chem Chem Phys 2014; 16:10753-61. [DOI: 10.1039/c4cp00762j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The variety of occupied and unoccupied valence electronic states of water in organic solutions detected by X-ray absorption and emission spectroscopy.
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Affiliation(s)
- Takashi Tokushima
- RIKEN SPring-8 Center
- Soft X-ray Spectroscopy Instrumentation Unit
- Sayo, Japan
| | - Yuka Horikawa
- RIKEN SPring-8 Center
- Excitation Order Research Team
- Sayo, Japan
| | - Osamu Takahashi
- Institute for Sustainable Sciences and Development
- Hiroshima University
- Higashi-Hiroshima, Japan
| | - Hidemi Arai
- RIKEN SPring-8 Center
- Excitation Order Research Team
- Sayo, Japan
- Graduate School of Frontier Sciences
- The University of Tokyo
| | | | - Yoshihisa Harada
- RIKEN SPring-8 Center
- Excitation Order Research Team
- Sayo, Japan
- Institute for Solid State Physics (ISSP)
- The University of Tokyo
| | - Yasutaka Takata
- RIKEN SPring-8 Center
- Excitation Order Research Team
- Sayo, Japan
- Institute for Sustainable Sciences and Development
- Hiroshima University
| | - Shik Shin
- RIKEN SPring-8 Center
- Excitation Order Research Team
- Sayo, Japan
- Institute for Solid State Physics (ISSP)
- The University of Tokyo
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37
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Tsilomelekis G, Josephson TR, Nikolakis V, Caratzoulas S. Origin of 5-hydroxymethylfurfural stability in water/dimethyl sulfoxide mixtures. CHEMSUSCHEM 2014; 7:117-26. [PMID: 24408726 DOI: 10.1002/cssc.201300786] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 10/30/2013] [Indexed: 05/23/2023]
Abstract
In the present work, we combined vibrational spectroscopy with electronic structure calculations to understand the solvation of HMF in DMSO, water, and DMSO/water mixtures and to provide insights into the observed hindrance of HMF rehydration and aldol condensation reactions if it is dissolved in DMSO/water mixtures. To achieve this goal, the attenuated total reflection FTIR spectra of a wide composition range of binary and ternary mixtures were measured, analyzed, and compared to the findings of ab initio DFT calculations. The effect of solvent on the HMF C-O and O-H vibrational modes reveals significant differences that are ascribed to different intermolecular interactions between HMF and DMSO or water. We also found that DMSO binds to HMF more strongly than water, and interactions with the HMF hydroxyl group are stronger than those with the HMF carbonyl group. We also showed the preferential solvation of HMF C-O groups by DMSO if HMF is dissolved in DMSO/water mixed solvent. Frontier molecular orbital theory was used to examine the influence of the solvent on side reactions. The results show that HMF solvation by DMSO increases its LUMO energy, which reduces its susceptibility to nucleophilic attack and minimizes undesirable hydration and humin-formation reactions. This result, together with the preferential solvation of HMF by DMSO, provide an explanation for the enhanced HMF stability in DMSO/water mixtures observed experimentally.
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Affiliation(s)
- George Tsilomelekis
- Catalysis Center for Energy Innovation, Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE, 19716 (USA)
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38
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Kunnus K, Josefsson I, Schreck S, Quevedo W, Miedema PS, Techert S, de Groot FMF, Odelius M, Wernet P, Föhlisch A. From Ligand Fields to Molecular Orbitals: Probing the Local Valence Electronic Structure of Ni2+ in Aqueous Solution with Resonant Inelastic X-ray Scattering. J Phys Chem B 2013; 117:16512-21. [DOI: 10.1021/jp4100813] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Kristjan Kunnus
- Institute
for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin GmbH, Albert-Einstein-Str. 15, 12489 Berlin, Germany
- Institut
für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Str.
24/25, 14476 Potsdam, Germany
| | - Ida Josefsson
- Department
of Physics, Stockholm University, AlbaNova University Center, 10691 Stockholm, Sweden
| | - Simon Schreck
- Institute
for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin GmbH, Albert-Einstein-Str. 15, 12489 Berlin, Germany
- Institut
für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Str.
24/25, 14476 Potsdam, Germany
| | - Wilson Quevedo
- Institute
for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin GmbH, Albert-Einstein-Str. 15, 12489 Berlin, Germany
| | - Piter S. Miedema
- Institute
for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin GmbH, Albert-Einstein-Str. 15, 12489 Berlin, Germany
| | - Simone Techert
- Max
Planck Institute for Biophysical Chemistry, Am Faßberg 11, 37077 Göttingen, Germany
| | - Frank M. F. de Groot
- Department
of Chemistry, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, Netherlands
| | - Michael Odelius
- Department
of Physics, Stockholm University, AlbaNova University Center, 10691 Stockholm, Sweden
| | - Philippe Wernet
- Institute
for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin GmbH, Albert-Einstein-Str. 15, 12489 Berlin, Germany
| | - Alexander Föhlisch
- Institute
for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin GmbH, Albert-Einstein-Str. 15, 12489 Berlin, Germany
- Institut
für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Str.
24/25, 14476 Potsdam, Germany
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39
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Atak K, Bokarev SI, Gotz M, Golnak R, Lange KM, Engel N, Dantz M, Suljoti E, Kühn O, Aziz EF. Nature of the chemical bond of aqueous Fe2+ probed by soft X-ray spectroscopies and ab initio calculations. J Phys Chem B 2013; 117:12613-8. [PMID: 24063525 DOI: 10.1021/jp408212u] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Aqueous iron(II) chloride is studied by soft X-ray absorption, emission, and resonant inelastic Raman scattering techniques on the Fe L-edge and O K-edge using the liquid-jet technique. Soft X-ray spectroscopies allow in situ and atom-specific probing of the electronic structure of the aqueous complex and thus open the door for the investigation of chemical bonding and molecular orbital mixing. In this work, we combine theoretical ab initio restricted active space self-consistent field and local atomic multiplet calculations with experimental soft X-ray spectroscopic methods for a description of the local electronic structure of the aqueous ferrous ion complex. We demonstrate that the atomic iron valence final states dominate the resonant inelastic X-ray scattering spectra of the complex over the ligand-to-metal charge transfer transitions, which indicates a weak interaction of Fe(2+) ion with surrounding water molecules. Moreover, the oxygen K-edge also shows only minor changes due to the presence of Fe(2+) implying a small influence on the hydrogen-bond network of water.
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Affiliation(s)
- Kaan Atak
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie , Albert-Einstein-Strasse 15, 12489 Berlin, Germany
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Lange KM, Aziz EF. Electronic structure of ions and molecules in solution: a view from modern soft X-ray spectroscopies. Chem Soc Rev 2013; 42:6840-59. [DOI: 10.1039/c3cs00008g] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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41
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Golnak R, Atak K, Suljoti E, Hodeck KF, Lange KM, Soldatov MA, Engel N, Aziz EF. Local electronic structure of aqueous zinc acetate: oxygen K-edge X-ray absorption and emission spectroscopy on micro-jets. Phys Chem Chem Phys 2013; 15:8046-9. [DOI: 10.1039/c3cp50686j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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42
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Lange KM, Golnak R, Bonhommeau S, Aziz EF. Ligand discrimination of myoglobin in solution: an iron L-edge X-ray absorption study of the active centre. Chem Commun (Camb) 2013; 49:4163-5. [DOI: 10.1039/c3cc37973f] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Iron L-edge X-ray absorption spectra of the active centre of myoglobin in the met-form, in the reduced form and upon ligation to O2, CO, NO and CN are presented.
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Affiliation(s)
| | - Ronny Golnak
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq)
- Helmholtz-Zentrum Berlin für Materialien und Energie
- 12489 Berlin
- Germany
| | | | - Emad F. Aziz
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq)
- Helmholtz-Zentrum Berlin für Materialien und Energie
- 12489 Berlin
- Germany
- Freie Universität Berlin
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Engel N, Atak K, Lange KM, Gotz M, Soldatov M, Golnak R, Suljoti E, Rubensson JE, Aziz EF. DMSO-Water Clustering in Solution Observed in Soft X-ray Spectra. J Phys Chem Lett 2012; 3:3697-3701. [PMID: 26291098 DOI: 10.1021/jz301665s] [Citation(s) in RCA: 22] [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 significant deviation from the ideality of dimethyl sulfoxide (DMSO)/water mixtures can be addressed based on the change of the local molecular orbitals of each solvent upon mixing. Oxygen K-edge absorption and emission spectra of DMSO/water solutions were measured using the liquid microjet technique. The spectra demonstrate that the hydrogen bond network in liquid water is already influenced at small DMSO concentrations, and at the molar fraction xDMSO = 0.43 we find strong evidence of DMSO-water clustering reflected by the influence on the occupied molecular orbitals.
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Affiliation(s)
- Nicholas Engel
- †Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- ‡Freie Universität Berlin, FB Physik, Arnimallee 14, 14195 Berlin, Germany
| | - Kaan Atak
- †Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- ‡Freie Universität Berlin, FB Physik, Arnimallee 14, 14195 Berlin, Germany
| | - Kathrin M Lange
- †Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- ‡Freie Universität Berlin, FB Physik, Arnimallee 14, 14195 Berlin, Germany
| | - Malte Gotz
- †Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- ‡Freie Universität Berlin, FB Physik, Arnimallee 14, 14195 Berlin, Germany
| | - Mikhail Soldatov
- †Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- ‡Freie Universität Berlin, FB Physik, Arnimallee 14, 14195 Berlin, Germany
- §Research Center for Nanoscale Structure of Matter, Southern Federal University, Sorge 5, Rostov-na-Donu 344090, Russia
| | - Ronny Golnak
- †Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- ‡Freie Universität Berlin, FB Physik, Arnimallee 14, 14195 Berlin, Germany
| | - Edlira Suljoti
- †Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- ‡Freie Universität Berlin, FB Physik, Arnimallee 14, 14195 Berlin, Germany
| | - Jan-Erik Rubensson
- ∥Department of Physics and Astronomy, Uppsala University, Box 516, S-751 20 Uppsala, Sweden
| | - Emad F Aziz
- †Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- ‡Freie Universität Berlin, FB Physik, Arnimallee 14, 14195 Berlin, Germany
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Josefsson I, Kunnus K, Schreck S, Föhlisch A, de Groot F, Wernet P, Odelius M. Ab Initio Calculations of X-ray Spectra: Atomic Multiplet and Molecular Orbital Effects in a Multiconfigurational SCF Approach to the L-Edge Spectra of Transition Metal Complexes. J Phys Chem Lett 2012; 3:3565-70. [PMID: 26290989 DOI: 10.1021/jz301479j] [Citation(s) in RCA: 129] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
A new ab initio approach to the calculation of X-ray spectra is demonstrated. It combines a high-level quantum chemical description of the chemical interactions and local atomic multiplet effects. We show here calculated L-edge X-ray absorption (XA) and resonant inelastic X-ray scattering spectra for aqueous Ni(2+) and XA spectra for a polypyridyl iron complex. Our quantum chemical calculations on a high level of accuracy in a post-Hartree-Fock framework give excellent agreement with experiment. This opens the door to reliable and detailed information on chemical interactions and the valence electronic structure in 3d transition-metal complexes also in transient excited electronic states. As we combine a molecular-orbital description with a proper treatment of local atomic electron correlation effects, our calculations uniquely allow, in particular, identifying the influence of interatomic chemical interactions versus intra-atomic correlations in the L-edge X-ray spectra.
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Affiliation(s)
- Ida Josefsson
- †Department of Physics, Stockholm University, AlbaNova University Center, 106 91 Stockholm, Sweden
| | - Kristjan Kunnus
- ‡Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
| | - Simon Schreck
- ‡Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
| | - Alexander Föhlisch
- ‡Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
| | - Frank de Groot
- §Inorganic Chemistry and Catalysis, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, Netherlands
| | - Philippe Wernet
- ‡Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
| | - Michael Odelius
- †Department of Physics, Stockholm University, AlbaNova University Center, 106 91 Stockholm, Sweden
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Kunnus K, Rajkovic I, Schreck S, Quevedo W, Eckert S, Beye M, Suljoti E, Weniger C, Kalus C, Grübel S, Scholz M, Nordlund D, Zhang W, Hartsock RW, Gaffney KJ, Schlotter WF, Turner JJ, Kennedy B, Hennies F, Techert S, Wernet P, Föhlisch A. A setup for resonant inelastic soft x-ray scattering on liquids at free electron laser light sources. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2012; 83:123109. [PMID: 23277974 DOI: 10.1063/1.4772685] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
We present a flexible and compact experimental setup that combines an in vacuum liquid jet with an x-ray emission spectrometer to enable static and femtosecond time-resolved resonant inelastic soft x-ray scattering (RIXS) measurements from liquids at free electron laser (FEL) light sources. We demonstrate the feasibility of this type of experiments with the measurements performed at the Linac Coherent Light Source FEL facility. At the FEL we observed changes in the RIXS spectra at high peak fluences which currently sets a limit to maximum attainable count rate at FELs. The setup presented here opens up new possibilities to study the structure and dynamics in liquids.
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Affiliation(s)
- Kristjan Kunnus
- Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin GmbH, Albert-Einstein-Strasse 15, 12489 Berlin, Germany.
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Lange KM, Aziz EF. The Hydrogen Bond of Water from the Perspective of Soft X-Ray Spectroscopy. Chem Asian J 2012; 8:318-27. [DOI: 10.1002/asia.201200533] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2012] [Indexed: 11/10/2022]
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48
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On the origin of dips in total fluorescence yield X-ray absorption spectra: Partial and inverse partial fluorescence yield at the L-edge of cobalt aqueous solution. Chem Phys Lett 2012. [DOI: 10.1016/j.cplett.2012.07.067] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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49
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Atak K, Engel N, Lange KM, Golnak R, Gotz M, Soldatov M, Rubensson JE, Kosugi N, Aziz EF. The chemical bond in carbonyl and sulfinyl groups studied by soft X-ray spectroscopy and ab initio calculations. Chemphyschem 2012; 13:3106-11. [PMID: 22730044 DOI: 10.1002/cphc.201200314] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2012] [Indexed: 11/06/2022]
Affiliation(s)
- Kaan Atak
- Functional Materials in Solution, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489 Berlin, Germany
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50
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Seidel R, Ghadimi S, Lange KM, Bonhommeau S, Soldatov MA, Golnak R, Kothe A, Könnecke R, Soldatov A, Thürmer S, Winter B, Aziz EF. Origin of Dark-Channel X-ray Fluorescence from Transition-Metal Ions in Water. J Am Chem Soc 2012; 134:1600-5. [DOI: 10.1021/ja207931r] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Robert Seidel
- Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
| | - Samira Ghadimi
- Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
| | - Kathrin M. Lange
- Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
| | - Sébastien Bonhommeau
- Institut des Sciences Moléculaires,
UMR 5255 CNRS, Université Bordeaux 1, 351 cours de la Libération, 33405 Talence Cedex, France
| | - Mikhail A. Soldatov
- Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
- Research Center for Nanoscale
Structure of Matter, Southern Federal University, Sorge 5, Rostov-na-Donu 344090, Russia
| | - Ronny Golnak
- Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
| | - Alexander Kothe
- Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
| | - René Könnecke
- Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
| | - Alexander Soldatov
- Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
| | - Stephan Thürmer
- Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
| | - Bernd Winter
- Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
| | - Emad F. Aziz
- Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
- Freie Universität Berlin, FB Physik, Arnimallee 14, D-14195 Berlin, Germany
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