Structure refinement of Rb4Mg3D10 on neutron powder diffraction data

F. Gingl, T. Vogt, E. Akiba, K. Yvon

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3 Citations (Scopus)

Abstract

Rb4Mg3D10 was synthesized by sintering stoichiometric mixtures of the binary deuterides at 675 K and 100 bar D2 for 5 days and characterized by X-ray and neutron powder diffraction. It crystallizes with the orthorhombic Cs4Mg3F10 structure (space group Cmca (64), cell parameters a = 6.0238(2) Å, b = 14.1126(5) Å, c = 13.4616(5) Å, V=1144.4 Å3, Z=4) and contains two magnesium sites having distorted octahedral deuterium coordination and two rubidium sites having irregular 10-fold and 11-fold deuterium coordination. The metal-deuterium distances and shortest deuterium-deuterium distance (Rb-D: 2.82-3.38, Mg-D: 1.90-2.11, D-D: 2.59 Å) are consistent with those found in the deuterides Rb2MgD4, Rb3MgD5 and RbMgD3.

Original languageEnglish
Pages (from-to)L4-L6
JournalJournal of Alloys and Compounds
Volume284
Issue number1-2
Publication statusPublished - Dec 1 1999

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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    Gingl, F., Vogt, T., Akiba, E., & Yvon, K. (1999). Structure refinement of Rb4Mg3D10 on neutron powder diffraction data. Journal of Alloys and Compounds, 284(1-2), L4-L6.