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Sahle CJ, Schroer MA, Juurinen I, Niskanen J. Influence of TMAO and urea on the structure of water studied by inelastic X-ray scattering. Phys Chem Chem Phys 2016; 18:16518-26. [DOI: 10.1039/c6cp01922f] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present a study on the influence of the naturally occurring organic osmolytes tri-methylamine N-oxide (TMAO) and urea on the bulk structure of water using X-ray Raman scattering spectroscopy.
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Affiliation(s)
| | - Martin A. Schroer
- Deutsches Elektronen-Synchrotron DESY
- 22607 Hamburg
- Germany
- The Hamburg Centre for Ultrafast Imaging (CUI)
- 22761 Hamburg
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Sahle CJ, Henriquet C, Schroer MA, Juurinen I, Niskanen J, Krisch M. A miniature closed-circle flow cell for high photon flux X-ray scattering experiments. J Synchrotron Radiat 2015; 22:1555-1558. [PMID: 26524322 DOI: 10.1107/s1600577515016331] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 09/01/2015] [Indexed: 06/05/2023]
Abstract
A closed-circle miniature flow cell for high X-ray photon flux experiments on radiation-sensitive liquid samples is presented. The compact cell is made from highly inert material and the flow is induced by a rotating magnetic stir bar, which acts as a centrifugal pump inside the cell. The cell is ideal for radiation-sensitive yet precious or hazardous liquid samples, such as concentrated acids or bases. As a demonstration of the cell's capabilities, X-ray Raman scattering spectroscopy data on the oxygen K-edge of liquid water under ambient conditions are presented.
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Affiliation(s)
- Ch J Sahle
- ESRF - The European Synchrotron, CS 40220, 38043 Grenoble Cedex 9, France
| | - C Henriquet
- ESRF - The European Synchrotron, CS 40220, 38043 Grenoble Cedex 9, France
| | - M A Schroer
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - I Juurinen
- Department of Physics, University of Helsinki, Helsinki, Finland
| | - J Niskanen
- Department of Physics, University of Helsinki, Helsinki, Finland
| | - M Krisch
- ESRF - The European Synchrotron, CS 40220, 38043 Grenoble Cedex 9, France
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Niskanen J, Sahle CJ, Juurinen I, Koskelo J, Lehtola S, Verbeni R, Müller H, Hakala M, Huotari S. Protonation Dynamics and Hydrogen Bonding in Aqueous Sulfuric Acid. J Phys Chem B 2015; 119:11732-9. [DOI: 10.1021/acs.jpcb.5b04371] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Johannes Niskanen
- Department
of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - Christoph J. Sahle
- Department
of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
- ESRF—The European Synchrotron, CS40220, 38043, Grenoble Cedex 9, France
| | - Iina Juurinen
- Department
of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - Jaakko Koskelo
- Department
of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - Susi Lehtola
- Department
of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - Roberto Verbeni
- ESRF—The European Synchrotron, CS40220, 38043, Grenoble Cedex 9, France
| | - Harald Müller
- ESRF—The European Synchrotron, CS40220, 38043, Grenoble Cedex 9, France
| | - Mikko Hakala
- Department
of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - Simo Huotari
- Department
of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
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Koskelo J, Juurinen I, Ruotsalainen KO, McGrath MJ, Kuo IF, Lehtola S, Galambosi S, Hämäläinen K, Huotari S, Hakala M. Intra- and intermolecular effects on the Compton profile of the ionic liquid 1,3-dimethylimidazolium chloride. J Chem Phys 2014; 141:244505. [PMID: 25554165 DOI: 10.1063/1.4904278] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We present a comprehensive simulation study on the solid-liquid phase transition of the ionic liquid 1,3-dimethylimidazolium chloride in terms of the changes in the atomic structure and their effect on the Compton profile. The structures were obtained by using ab initio molecular dynamics simulations. Chosen radial distribution functions of the liquid structure are presented and found generally to be in good agreement with previous ab initio molecular dynamics and neutron scattering studies. The main contributions to the predicted difference Compton profile are found to arise from intermolecular changes in the phase transition. This prediction can be used for interpreting future experiments.
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Affiliation(s)
- J Koskelo
- Department of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - I Juurinen
- Department of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - K O Ruotsalainen
- Department of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - M J McGrath
- Laboratoire des Sciences du Climat et de l'Environnement, CEA-Orme des Merisiers, F-91191 Gif-sur-Yvette CEDEX, France
| | - I-F Kuo
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - S Lehtola
- Department of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - S Galambosi
- Department of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - K Hämäläinen
- Department of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - S Huotari
- Department of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - M Hakala
- Department of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
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Juurinen I, Pylkkänen T, Sahle CJ, Simonelli L, Hämäläinen K, Huotari S, Hakala M. Effect of the Hydrophobic Alcohol Chain Length on the Hydrogen-Bond Network of Water. J Phys Chem B 2014; 118:8750-5. [DOI: 10.1021/jp5045332] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Iina Juurinen
- Department
of Physics, P.O.B. 64, FI-00014 University of Helsinki, Helsinki, Finland
| | - Tuomas Pylkkänen
- Department
of Physics, P.O.B. 64, FI-00014 University of Helsinki, Helsinki, Finland
| | - Christoph J. Sahle
- Department
of Physics, P.O.B. 64, FI-00014 University of Helsinki, Helsinki, Finland
| | - Laura Simonelli
- ESRF - The European
Synchrotron, CS 40220, 38043 Grenoble Cedex 9, France
| | - Keijo Hämäläinen
- Department
of Physics, P.O.B. 64, FI-00014 University of Helsinki, Helsinki, Finland
| | - Simo Huotari
- Department
of Physics, P.O.B. 64, FI-00014 University of Helsinki, Helsinki, Finland
| | - Mikko Hakala
- Department
of Physics, P.O.B. 64, FI-00014 University of Helsinki, Helsinki, Finland
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Juurinen I, Galambosi S, Anghelescu-Hakala AG, Koskelo J, Honkimäki V, Hämäläinen K, Huotari S, Hakala M. Molecular-Level Changes of Aqueous Poly(N-isopropylacrylamide) in Phase Transition. J Phys Chem B 2014; 118:5518-23. [DOI: 10.1021/jp501913p] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Iina Juurinen
- Department
of Physics, University of Helsinki, P.O.B. 64, FI-00014, Helsinki, Finland
| | - Szabolcs Galambosi
- Department
of Physics, University of Helsinki, P.O.B. 64, FI-00014, Helsinki, Finland
| | - Adina G. Anghelescu-Hakala
- VTT Technical Research Centre of Finland, Patruunantie 19, FI-05200, Rajamäki, Finland
- Department
of Chemistry, Laboratory of Polymer Chemistry, University of Helsinki, P.O.B. 55, FI-00014, Helsinki, Finland
| | - Jaakko Koskelo
- Department
of Physics, University of Helsinki, P.O.B. 64, FI-00014, Helsinki, Finland
| | - Veijo Honkimäki
- European Synchrotron Radiation Facility, F-38043, Grenoble Cedex 9, France
| | - Keijo Hämäläinen
- Department
of Physics, University of Helsinki, P.O.B. 64, FI-00014, Helsinki, Finland
| | - Simo Huotari
- Department
of Physics, University of Helsinki, P.O.B. 64, FI-00014, Helsinki, Finland
| | - Mikko Hakala
- Department
of Physics, University of Helsinki, P.O.B. 64, FI-00014, Helsinki, Finland
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Juurinen I, Pylkkänen T, Ruotsalainen KO, Sahle CJ, Monaco G, Hämäläinen K, Huotari S, Hakala M. Saturation Behavior in X-ray Raman Scattering Spectra of Aqueous LiCl. J Phys Chem B 2013; 117:16506-11. [DOI: 10.1021/jp409528r] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Iina Juurinen
- Department
of Physics, University of Helsinki, P.O.B. 64, FI-00014 Helsinki, Finland
| | - Tuomas Pylkkänen
- Department
of Physics, University of Helsinki, P.O.B. 64, FI-00014 Helsinki, Finland
| | - Kari O. Ruotsalainen
- Department
of Physics, University of Helsinki, P.O.B. 64, FI-00014 Helsinki, Finland
| | - Christoph J. Sahle
- Department
of Physics, University of Helsinki, P.O.B. 64, FI-00014 Helsinki, Finland
| | - Giulio Monaco
- European
Synchrotron Radiation Facility, F-38043, Grenoble Cedex 9, France
- Dipartimento
di Fisica, Universitá di Trento, I-38123 Povo, Trento, Italy
| | - Keijo Hämäläinen
- Department
of Physics, University of Helsinki, P.O.B. 64, FI-00014 Helsinki, Finland
| | - Simo Huotari
- Department
of Physics, University of Helsinki, P.O.B. 64, FI-00014 Helsinki, Finland
| | - Mikko Hakala
- Department
of Physics, University of Helsinki, P.O.B. 64, FI-00014 Helsinki, Finland
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Juurinen I, Nakahara K, Ando N, Nishiumi T, Seta H, Yoshida N, Morinaga T, Itou M, Ninomiya T, Sakurai Y, Salonen E, Nordlund K, Hämäläinen K, Hakala M. Measurement of two solvation regimes in water-ethanol mixtures using x-ray compton scattering. Phys Rev Lett 2011; 107:197401. [PMID: 22181642 DOI: 10.1103/physrevlett.107.197401] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2010] [Revised: 06/17/2011] [Indexed: 05/31/2023]
Abstract
Water-ethanol mixtures exhibit interesting anomalies in their macroscopic properties. Despite a lot of research, the origin of the anomalies and the microscopic structure itself is still far from completely known. We have utilized the synchrotron x-ray Compton scattering technique to elucidate the structure of aqueous ethanol from a new experimental perspective. The technique is uniquely sensitive to the local molecular geometries at the angstrom and subangstrom scales. The experiments reveal two distinct mixing regimes in terms of geometry: the dilute 5 mol % and the concentrated >15 mol % regimes. By comparing with pure liquids, the former regime is characterized by an intramolecular and the latter by an intermolecular change. The findings bring new light to evaluating the hypothesis of formation of clathratelike structures at the dilute concentrations.
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Affiliation(s)
- I Juurinen
- Department of Physics, PO Box 64, FI-00014 University of Helsinki, Finland
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