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Synthesis and structure of the ternary nitride Li6WN4

Published online by Cambridge University Press:  01 March 2012

W. X. Yuan ,
J. W. Hu ,
Y. T. Song ,
W. J. Wang  and
Y. P. Xu
W. X. Yuan*
Affiliation:
Department of Chemistry, University of Science and Technology Beijing, Beijing 100083, China
J. W. Hu
Affiliation:
Department of Chemistry, University of Science and Technology Beijing, Beijing 100083, China
Y. T. Song
Affiliation:
Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Science, P.O. Box 603, Beijing 100080, China
W. J. Wang
Affiliation:
Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Science, P.O. Box 603, Beijing 100080, China
Y. P. Xu
Affiliation:
Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Science, P.O. Box 603, Beijing 100080, China
*
a)Author to whom correspondence should be addressed. Electronic mail: wxyuan@sas.ustb.edu.cn
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Abstract

The ternary nitridotungstate Li6WN4 has been synthesized via the solid state reaction of lithium subnitride, Li3N, with W under nitrogen. High quality X-ray powder diffraction data were collected for the crystal-structure determination. Li6WN4 crystallizes in the tetragonal system, space group P42∕nmc, with cell parameters a=6.6759(3) Å and c=4.9280(3) Å, Z=2. Preliminary thermal stability measurements of Li6WN4 show that it is sensitive to moisture, even at room temperature, and decomposes at high temperatures below 1000 °C under flowing nitrogen.

Keywords

nitrideschemical synthesiscrystal structurethermal analysis

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Type
Technical Articles
Information
Powder Diffraction , Volume 20 , Issue 1 , March 2005 , pp. 18 - 21
Copyright
Copyright © Cambridge University Press 2005

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