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Synthesis and Characterization of Low-Dimensional Chalcogenide Compound via a Molten Salt Method

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주제분류화학

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Abstract

The reaction of Cu metal with mixed alkali metal polyselenide flux (KNaSex) produced large plate-likecrystals of KCu4Se3. The structure of KCu4Se3, determined with X-ray single crystal difraction techniques, is tetragonal(P4/mmm, a=4.013(1) c=9.712(1) z=1, R=6.7%). The structure is composed [Cu4Se3]nn double layers which are2Se2 layers. Temperature variable resistivity measurement on single crystal of KCu4Se3shows metallic behavior ranging from 1.8104 cm (at 300 K) to 1.006 ?cm (at 20K).

참고문헌 (7)

  1. a, "M. InCrystal Chemistry and Properties of materials withQuasi-One-Dimensional Structures", pp.1 1~ (1986)
  2. a, "J. Crystal Chemistry and Properties of Materialswith Quasi One-Dimensional Structures J. Rouxel", pp.52~ (1986)
  3. "J. New Directions in SolidState Chemistry Cambridge University Press" (1986)
  4. "Low-Temperature Synthesis of New TernaryChalcogenide Compounds of Cu" (1992), Michigan State University
  5. "A Fortran IV Program for Calculating X-rayPowder Diffraction Patterns" (1983), version 10. PennsylvaniaState University
  6. "G. M. In Crystallographic Computing 3", pp.175~189 (1985), Eds. OxfordUniversity Press
  7. "Single Crystal Structure Analysis Software,Version 6.0", pp.~60 (1999), Bruker Inc.

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