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Dineodymium tritelluride, Nd2Te3.

Ismail Ijjaali1, James A Ibers

  • 1Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113, USA.

Acta Crystallographica. Section C, Crystal Structure Communications
|September 3, 2002
PubMed
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Neodymium telluride (Nd2Te3) crystallizes in the U2S3 structure type, similar to Gadolinium telluride (Gd2Te3). This single-crystal study reveals unique coordination polyhedra for Nd atoms, described as a seven-octahedron and a monocapped trigonal prism.

Area of Science:

  • Solid-state chemistry
  • Crystallography
  • Materials science

Background:

  • Understanding the structural properties of rare-earth tellurides is crucial for materials science.
  • Gadolinium telluride (Gd2Te3) serves as a reference for related rare-earth compounds.

Purpose of the Study:

  • To determine the crystal structure of Neodymium telluride (Nd2Te3).
  • To compare the structural characteristics of Nd2Te3 with other rare-earth tellurides.

Main Methods:

  • Single-crystal X-ray diffraction was employed to analyze the Nd2Te3 sample.
  • The crystal structure was solved and refined.

Main Results:

  • Nd2Te3 was found to be isostructural with Gd2Te3.

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  • The compound crystallizes in the U2S3 structure type.
  • Two distinct Neodymium (Nd) atoms exhibit seven-fold coordination with Tellurium (Te) atoms.
  • The coordination polyhedra were identified as a seven-octahedron and a monocapped trigonal prism.
  • All atoms were observed to lie on mirror planes within the crystal structure.

    • Conclusions:

    • Nd2Te3 shares the U2S3 structure type with Gd2Te3.
    • The detailed structural analysis provides insights into the coordination chemistry of Neodymium in telluride compounds.