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Zeitschrift für Physikalische Chemie

International journal of research in physical chemistry and chemical physics

Editor-in-Chief: Rademann, Klaus


IMPACT FACTOR 2017: 1.144
5-year IMPACT FACTOR: 1.144

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SCImago Journal Rank (SJR) 2017: 0.495
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2196-7156
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Volume 230, Issue 5-7

Issues

Eu2+-Containing Luminescent Perovskite-Type Hydrides Studied by Electron Paramagnetic Resonance

Nathalie Kunkel
  • Corresponding author
  • PSL Research University, Chimie ParisTech-CNRS, Institut de Recherche de Chimie Paris, Rue Pierre et Marie Curie 11, F-75005 Paris, France
  • Inorganic Chemistry, University of Leipzig, Johannisallee 29, D-04103 Leipzig, Germany
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  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Rolf Böttcher
  • Faculty of Physics and Earth Sciences, University of Leipzig, Linnestrasse 5, D-04103 Leipzig, Germany
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  • De Gruyter OnlineGoogle Scholar
/ Tilo Pilling
  • Faculty of Physics and Earth Sciences, University of Leipzig, Linnestrasse 5, D-04103 Leipzig, Germany
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  • De Gruyter OnlineGoogle Scholar
/ Holger Kohlmann / Andreas Pöppl
  • Faculty of Physics and Earth Sciences, University of Leipzig, Linnestrasse 5, D-04103 Leipzig, Germany
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Published Online: 2015-11-18 | DOI: https://doi.org/10.1515/zpch-2015-0690

Abstract

Metal hydrides exhibit interesting properties as hosts for Eu(II) containing luminescent compounds due to the nephelauxetic effect and the strong ligand field of the hydride anion. In order to elucidate the lattice site symmetry of europium dopants, Q-band and X-band electron paramagnetic resonance (EPR) spectra were collected on LiMH3 : Eu2+ and LiMD3 : Eu2+ (M = Sr, Ba) powders with europium concentrations between 0.0037 and 0.27 mol %. They show well resolved hyperfine splitting in the central part of the spectra due to magnetic electron spin-nuclear spin coupling of 151Eu and 153Eu, and are in good agreement with simulated spectra based upon cubic site symmetry. Spin Hamiltonian parameters were extracted by spectral analysis and are reported. Low intensity rhombic spectra contributions could be assigned to small amounts of MH2 : Eu2+ or the respective deuterides as impurities in the samples. The results of this EPR investigation and size considerations suggest that europium is divalent and occupies the alkaline earth metal (M) positions in LiMH3 : Eu2+ and LiMD3 : Eu2+ (M = Sr, Ba).

This article offers supplementary material which is provided at the end of the article.

Keywords: Electron Paramagnetic Resonance; Europium; Hydrides; Luminescent Materials

Supplementary material

the online version of this article (DOI: 10.1515/zpch-2015-0690) provides supplementary material for authorized users.

About the article

Accepted: 2015-10-19

Received: 2015-09-25

Published Online: 2015-11-18

Published in Print: 2016-05-28


Citation Information: Zeitschrift für Physikalische Chemie, Volume 230, Issue 5-7, Pages 931–942, ISSN (Online) 2196-7156, ISSN (Print) 0942-9352, DOI: https://doi.org/10.1515/zpch-2015-0690.

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[1]
Thomas Wylezich, Sacha Welinski, Markus Hoelzel, Philippe Goldner, and Nathalie Kunkel
Journal of Materials Chemistry C, 2018
[2]
Nathalie Kunkel and Thomas Wylezich
Zeitschrift für anorganische und allgemeine Chemie, 2018
[3]
Gauthier Lefevre, Alexander Herfurth, Holger Kohlmann, Adlane Sayede, Thomas Wylezich, Sacha Welinski, Pedro Duarte Vaz, Stewart F. Parker, Jean François Blach, Philippe Goldner, and Nathalie Kunkel
The Journal of Physical Chemistry C, 2018
[4]
Nathalie Kunkel, Atul D. Sontakke, Stephan Kohaut, Bruno Viana, and Pieter Dorenbos
The Journal of Physical Chemistry C, 2016, Volume 120, Number 51, Page 29414
[5]
Nathalie Kunkel, John Bartholomew, Laurent Binet, Akio Ikesue, and Philippe Goldner
The Journal of Physical Chemistry C, 2016, Volume 120, Number 25, Page 13725

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