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Eu2Ru3Si5 and Eu2Ir3Ga5 – first europium compounds with U2Mn3Si5-type structure but different europium valence

  • Stefan Seidel , Thomas Harmening , Jutta Kösters , Aylin Koldemir , Wilma Pröbsting , Simon Engelbert and Rainer Pöttgen EMAIL logo
Published/Copyright: March 30, 2023
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Zeitschrift für Naturforschung B
From the journal Zeitschrift für Naturforschung B Volume 78 Issue 5

Abstract

The silicide Eu2Ru3Si5 was synthesized from the elements in a sealed tantalum tube in a high-frequency furnace, while the gallide Eu2Ir3Ga5 was obtained by arc-melting. Both structures were refined from single-crystal X-ray diffractometer data: P4/mnc, a = 1072.69(8), c = 569.55(5) pm, wR = 0.0453, 617 F2 values, 31 variables for Eu2Ru3Si5 and a = 1122.18(7), c = 583.17(4) pm, wR = 0.0546, 729 F2 values, 31 variables for Eu2Ir3Ga4.95(1). The gallide shows small defects on one 8h site. The transition metal atoms in Eu2Ru3Si5 and Eu2Ir3Ga5 have octahedral p element coordination. These Ru@Si6 respectively Ir@Ga6 polyhedra are condensed to three-dimensional [Ru3Si5]6− respectively [Ir3Ga5]4− polyanionic networks. The ground states of Eu(III) in Eu2Ru3Si5 and Eu(II) in Eu2Ir3Ga5 were determined by 151Eu Mössbauer spectroscopy.

Keywords: crystal structure; europium; intermetallics; Mössbauer spectroscopy
Corresponding author: Rainer Pöttgen, Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstrasse 30, 48149 Münster, Germany, E-mail:

Acknowledgements

We thank Dipl.-Ing. U. Ch. Rodewald for the intensity data collections.

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2023-03-02
Accepted: 2023-03-11
Published Online: 2023-03-30
Published in Print: 2023-05-25

© 2023 Walter de Gruyter GmbH, Berlin/Boston

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https://doi.org/10.1515/znb-2023-0009
Keywords for this article
crystal structure; europium; intermetallics; Mössbauer spectroscopy

Articles in the same Issue

  1. Frontmatter
  2. In this issue
  3. Research Articles
  4. Photoredox-catalyzed three-component difluorobenzylation of quinoxalin-2(1H)-ones with unactivated vinylarenes and BrCF2CO2Et/HCF2CO2H
  5. Catalyst-free direct synthesis of indeno[1,2-b]indol-5(4bH)-yl benzimidamides
  6. Crystal structure of three chloridocuprate(I, II) complexes with methylene blue (MB) counterions
  7. Crystal structure, photophysical properties, and DFT calculations of a boron difluoride curcumin complex
  8. The double cluster compound [Nb6Cl14(MeCN)4][Nb6Cl14(pyz)4]·6MeCN (Me: methyl, pyz: pyrazine) with a layered structure resulting from weak intermolecular interactions
  9. Expanding transition metal borate chemistry to include main group elements: high-pressure synthesis and structural relation of β-MgB4O7
  10. Eu2Ru3Si5 and Eu2Ir3Ga5 – first europium compounds with U2Mn3Si5-type structure but different europium valence
  11. Mössbauer-spectroscopic characterization of the stannides Sr2Pd2Sn and Eu2Pd2Sn
  12. Orthoamide und Iminiumsalze, CVIII. Umsetzungen von Orthoamiden der Alkincarbonsäuren mit CH/NH-aciden, tautomeriefähigen Verbindungen
  13. Book Review
  14. Thomas J. Meade (Guest Editor), Astrid Sigel, Helmut Sigel, Eva Freisinger, Roland K. O. Sigel (Series Editors): Molecular Bio-Sensors and the Role of Metal Ions
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