Synthesis and characterization of the wide band-gap compound Pr2Te4O11

Ismail Ijjaali, Christine Flaschenriem, James A. Ibers*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

Single crystals of Pr2Te4O11 have been grown through the reaction of Pr6O11 and TeO2 in a CsCl flux at 1123 K. This compound, which is isostructural with Nd2Te4O11 and Ho2Te4O11, crystallizes in space group C2/c of the monoclinic system with four formula units in a cell of dimensions at 153 K of a = 12.6880(6) Å, b = 5.2361(3) Å, c = 16.2920(8) Å, β = 106.052(1)°, and V = 1040.17(9) Å3. The three dimensional structure is made from the interconnection between 2[Pr2O1014-] and 2[Te4O116-] networks. Pr2Te4O11 is a Curie-Weiss paramagnetic with an effective magnetic moment of 3.59(2) μB. Optical diffuse reflectance spectroscopy shows typical 4f-4f optical transitions for Pr(III), in addition to a wide band gap of 3.65 eV.

Original languageEnglish (US)
Pages (from-to)115-119
Number of pages5
JournalJournal of Alloys and Compounds
Volume354
Issue number1-2
DOIs
StatePublished - May 12 2003

Keywords

  • Crystal structure
  • Praseodymium
  • Solid-state compound
  • Synthesis
  • Tellurite

ASJC Scopus subject areas

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

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