Synthesis and structure of Ba8Cu3In4N5 with nitridocuprate groups and one-dimensional infinite indium clusters

Hisanori Yamane, Shinya Sasaki, Shun Ichi Kubota, Ryo Inoue, Masahiko Shimada, Takashi Kajiwara

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Single crystals of the quaternary compound Ba8Cu3In4N5 were prepared by heating Ba, Cu, and In in a Na flux at 1023 K under 7 MPa of N2, and by slow cooling from this temperature. The crystal structure was analyzed by single-crystal X-ray diffraction. It crystallizes in an orthorhombic cell (space group Immm (No. 71), Z=2) with a=4.0781(6), b=12.588(2), and c = 19.804(3) Å at 298 K. The structural formula is expressed as Ba8[CuN2]2[CuN]In4. Nitridocuprates of one-dimensional chains ∞1[CuN2/2] and isolated units 0[CuN2], and one-dimensional indium clusters ∞1[In2In4/2] are contained in the structure. A split-site model applied for the arrangement of ∞1[CuN2/2] chains suggested that there is a short-bond, long-bond alternation of the Cu-N bondings. The electrical resistivity of Ba8Cu3In4N5 was 3.44 mΩ·cm at 298 K. A metallic temperature dependence of the resistivity was observed down to 10 K.

Original languageEnglish
Pages (from-to)449-454
Number of pages6
JournalJournal of Solid State Chemistry
Volume163
Issue number2
DOIs
Publication statusPublished - 2002 Jan 1

Keywords

  • Barium copper nitride indium
  • Crystal structure
  • Indium cluster
  • Nitridocuprates
  • Single-crystal X-ray diffraction
  • Zintl anion

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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