Improved synthesis and characterization of the copper Lyonsite-type compound Cu 4-x Mo 3 O 12

Adam D. Raw, James A Ibers, Kenneth Poeppelmeier*

*Corresponding author for this work

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

A novel method involving a molten Ga flux for the synthesis of diffraction quality crystals of the compound Cu 3.82(1) Mo 3 O 12 , a copper molybdate in the Lyonsite (α-Cu 3 Fe 4 (VO 4 ) 6 ) family, has been developed. Single-crystal X-ray diffraction data have been collected. Cu 3.82(1) Mo 3 O 12 crystallizes in the space group P2 1 2 1 2 1 with cell dimensions of a=4.9972(1) Å, b=11.0259(3) Å, and c=17.4912(5) Å. Refinement of the resulting structure has enabled modeling of disorder in the channels of the structure and has indicated the localization of copper vacancies to these channel positions. Thermopower measurements indicate that Cu 3.82(1) Mo 3 O 12 is a rare and interesting example of a cation-deficient n-type material.

Original languageEnglish (US)
Pages (from-to)165-169
Number of pages5
JournalJournal of Solid State Chemistry
Volume200
DOIs
StatePublished - Apr 1 2013

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Keywords

  • Copper molybdate
  • Ga flux synthesis
  • Lyonsite
  • Thermopower measurements
  • X-ray crystal structure

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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