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Structure and Properties of the Stannide Eu2Au2Sn5, and its Relationship with the Family of BaAl4-Related Structures

  • Dirk Kußmann , Rainer Pöttgen EMAIL logo , Ute Ch. Rodewald , Carsten Rosenhahn , Bernd D. Mosel , Gunter Kotzyba and Bernd Künnen
Published/Copyright: June 2, 2014
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Zeitschrift für Naturforschung B
From the journal Zeitschrift für Naturforschung B Volume 54 Issue 9

The stannide Eu2Au2Sn5 was prepared by high-frequency melting of the elements in a sealed tantalum tube. The structure of Eu2Au2Sn5 was refined from single crystal X-ray data: P21/m, a = 928.6(2), b = 465.8(2), c = 1042.9(3) pm, ß = 92.28(2)°, wR2 = 0.0653, 1220 F2 values and 56 variables. The structure of Eu2Au2Sn5 is of a new type, it can be considered as an ordered defect variant of the BaAl4 type. Due to the ordered defects, the coordination number (CN) of the two crystallographically different europium sites is reduced from CN 16 to CN 14. The gold and tin atoms in Eu2Au2Sn5 form a complex three-dimensional [Au2Sn5] polyanion in which the europium atoms are embedded. Within the polyanion short Au-Sn and Sn-Sn distances are indicative of strongly bonding Au-Sn and Sn-Sn interactions. A detailed group-subgroup scheme for various ordered and defect variants of the BaAl4 family is presented. Eu2Au2Sn5 shows Curie-Weiss behavior above 50 K with an experimental magnetic moment of 7.90(5) μB/Eu, indicating divalent europium. Antiferromagnetic ordering is detected at 5.8(5) K at low fields and a metamagnetic transition occurs at a critical field of 1.4(2) T. Eu2Au2Sn5 is a metal with a specific resistivity of 150±20 μfΩcm at room temperature. The results of 151Eu and 119Sn Mössbauer spectroscopic experiments are compatible with divalent europium and show complex hyperfine field splitting with a transferred magnetic hyperfine field at the tin nuclei at low temperature.

Keywords: Europium Gold Stannide; Crystal Structure; Mössbauer Spectroscopy; Group-Subgroup Relations
Received: 1999-6-7
Published Online: 2014-6-2
Published in Print: 1999-9-1

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung

Articles in the same Issue

  1. Die Kristallstruktur von [PhMe3 N]4 [Pb3Br10] / Crystal Structure of [PhMe3N]4[Pb3B r10]
  2. Hexaborate Cluster Radical Anions [B6Haln Hal'6-n].- and [B6Hal5R].-(Hai, Hal' = CI, Br, I; R = H, alkyl). Chemical or Electrochemical Generation, Vibrational, UV-Vis and EPR Spectroscopy
  3. Schwingungsspektren und Normalkoordinatenanalysen der Dioxoosmate( VI) trans-[OsO2(CN)4]2-, trans-[OsO2(CN)2(0H )]22- und trans-[OsO2(CN)2(OCH3)]22 sowie Kristallstruktur von trans-(Ph3PNPPh3)2[OsO2(CN)2(OCH3)]2 / Vibrational Spectra and Normal Coordinate Analysis of the Dioxoosmates(VI) trans-[OsO2(CN)4]2-, trans-[OsO2 (CN)2(OH)]22- and trans-[OsO2(CN)2(OCH3]22- , and Crystal Structure of trans-(Ph3PNPPh3)2[OsO2(CN)2(OCH3)]2
  4. Darstellung, Schwingungsspektren und Normalkoordinatenanalysen der Dioxoosmate(VI) trans-[OsO2(CN)2(ox)]2-, transs-[OsO2(CN)2(mal)]2- und trans-[OsO2(CN)2(N2H2C2O2)]2- / Synthesis, Vibrational Spectra and Normal Coordinate Analysis of the Dioxoosmates(VI) frans-[OsO2(CN)2(ox)]2- , trans-[OsO2 (CN)2(mal)]2- and trans-[OsO2 (CN)2(N2H2C2O2)]2-
  5. Structure of [μ-S2{Ru(PCy3)('S4')}2] · 2.5 THF ·0.5 Et2O Containing Homochiral Metal Complex Fragments ['S4'2- = 1,2-Bis(mercaptophenylthio)-ethane (2-)]
  6. The Crystal Structure of WC Type ZrTe. Advantages in Chemical Bonding as Contrasted to NiAs Type ZrTe
  7. Wrap-around Encapsulated Cs(dibenzo-24-crown-8)+ Cations form Linear Coordination Polymers with Dicyanoargentate Anions Ag(CN)2-
  8. Reaktionsverhalten von β-Oxo-carbonsäurederivaten der Anthracenreihe bei der Synthese von Pyrazolen / On the Reaction Behavior of ß-Oxo Carbonic Acid Derivatives of the Anthracene Series in Pyrazole Synthesis
  9. Electrochemical Electron Transfer Reactions of M(ttcn)23+/2+ (M = Co, Pd, Pt, Au; ttcn = 1,4,7-trithiacyclononane): the Relation of Reaction Volumes and Electron Transfer Rate Constants
  10. Tuning the Energy of the NIR Absorption of Dinuclear Triphos-Cobalt-Complexes
  11. Structure and Properties of the Stannide Eu2Au2Sn5, and its Relationship with the Family of BaAl4-Related Structures
  12. 2-[N,N-Bis(trimethylstannyl)amino]pyridine and Bis[N-(N-trimethyIsiIyI- 2-aminopyridyI)]dimethyltin - Intramolecular N-Sn Co-ordination
  13. Preparation and X-Ray Structure of 4-N,N′-Bis(trimethylsilyl)- amino-3,5-diisopropylphenylselenium Trichloride
  14. One- and Two- Dimensional Copper(I) Halide Based Coordination Polymers with Bridging Pyridazine or Pyrimidine Ligands
  15. Methoxyalky 1-funktionalisierte 2,3-Dihy droimidazol-2-ylidene [1] / Methoxyalkyl Functionalized 2,3-Dihydroimidazol-2-ylidenes [1]
  16. Synthesis and Reactivity of Novel Bis(stannyl)silanes
  17. Cinnamoylacetonitrile in Heterocyclic Synthesis, Part 7 [1]. Simple Synthesis of Benzothiazepines, Pyrones and Oxazolopyridine
  18. Synthesis of 3-Phenylisoxazolo[3,4-a]carbazoles
  19. New Simple and One-Pot Synthetic Routes to Polyfunctionally Substituted Pyridines; 1,4-Dihydropyridazines and 4H-1,2-Oxazine
  20. Syntheses of Selected Quaternary Phenacylbromopyridinium Compounds and their Biological Evaluation
https://doi.org/10.1515/znb-1999-0911
Keywords for this article
Europium Gold Stannide; Crystal Structure; Mössbauer Spectroscopy; Group-Subgroup Relations

Articles in the same Issue

  1. Die Kristallstruktur von [PhMe3 N]4 [Pb3Br10] / Crystal Structure of [PhMe3N]4[Pb3B r10]
  2. Hexaborate Cluster Radical Anions [B6Haln Hal'6-n].- and [B6Hal5R].-(Hai, Hal' = CI, Br, I; R = H, alkyl). Chemical or Electrochemical Generation, Vibrational, UV-Vis and EPR Spectroscopy
  3. Schwingungsspektren und Normalkoordinatenanalysen der Dioxoosmate( VI) trans-[OsO2(CN)4]2-, trans-[OsO2(CN)2(0H )]22- und trans-[OsO2(CN)2(OCH3)]22 sowie Kristallstruktur von trans-(Ph3PNPPh3)2[OsO2(CN)2(OCH3)]2 / Vibrational Spectra and Normal Coordinate Analysis of the Dioxoosmates(VI) trans-[OsO2(CN)4]2-, trans-[OsO2 (CN)2(OH)]22- and trans-[OsO2(CN)2(OCH3]22- , and Crystal Structure of trans-(Ph3PNPPh3)2[OsO2(CN)2(OCH3)]2
  4. Darstellung, Schwingungsspektren und Normalkoordinatenanalysen der Dioxoosmate(VI) trans-[OsO2(CN)2(ox)]2-, transs-[OsO2(CN)2(mal)]2- und trans-[OsO2(CN)2(N2H2C2O2)]2- / Synthesis, Vibrational Spectra and Normal Coordinate Analysis of the Dioxoosmates(VI) frans-[OsO2(CN)2(ox)]2- , trans-[OsO2 (CN)2(mal)]2- and trans-[OsO2 (CN)2(N2H2C2O2)]2-
  5. Structure of [μ-S2{Ru(PCy3)('S4')}2] · 2.5 THF ·0.5 Et2O Containing Homochiral Metal Complex Fragments ['S4'2- = 1,2-Bis(mercaptophenylthio)-ethane (2-)]
  6. The Crystal Structure of WC Type ZrTe. Advantages in Chemical Bonding as Contrasted to NiAs Type ZrTe
  7. Wrap-around Encapsulated Cs(dibenzo-24-crown-8)+ Cations form Linear Coordination Polymers with Dicyanoargentate Anions Ag(CN)2-
  8. Reaktionsverhalten von β-Oxo-carbonsäurederivaten der Anthracenreihe bei der Synthese von Pyrazolen / On the Reaction Behavior of ß-Oxo Carbonic Acid Derivatives of the Anthracene Series in Pyrazole Synthesis
  9. Electrochemical Electron Transfer Reactions of M(ttcn)23+/2+ (M = Co, Pd, Pt, Au; ttcn = 1,4,7-trithiacyclononane): the Relation of Reaction Volumes and Electron Transfer Rate Constants
  10. Tuning the Energy of the NIR Absorption of Dinuclear Triphos-Cobalt-Complexes
  11. Structure and Properties of the Stannide Eu2Au2Sn5, and its Relationship with the Family of BaAl4-Related Structures
  12. 2-[N,N-Bis(trimethylstannyl)amino]pyridine and Bis[N-(N-trimethyIsiIyI- 2-aminopyridyI)]dimethyltin - Intramolecular N-Sn Co-ordination
  13. Preparation and X-Ray Structure of 4-N,N′-Bis(trimethylsilyl)- amino-3,5-diisopropylphenylselenium Trichloride
  14. One- and Two- Dimensional Copper(I) Halide Based Coordination Polymers with Bridging Pyridazine or Pyrimidine Ligands
  15. Methoxyalky 1-funktionalisierte 2,3-Dihy droimidazol-2-ylidene [1] / Methoxyalkyl Functionalized 2,3-Dihydroimidazol-2-ylidenes [1]
  16. Synthesis and Reactivity of Novel Bis(stannyl)silanes
  17. Cinnamoylacetonitrile in Heterocyclic Synthesis, Part 7 [1]. Simple Synthesis of Benzothiazepines, Pyrones and Oxazolopyridine
  18. Synthesis of 3-Phenylisoxazolo[3,4-a]carbazoles
  19. New Simple and One-Pot Synthetic Routes to Polyfunctionally Substituted Pyridines; 1,4-Dihydropyridazines and 4H-1,2-Oxazine
  20. Syntheses of Selected Quaternary Phenacylbromopyridinium Compounds and their Biological Evaluation
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