Title of article
Crystal Structure of the Ba4CeNb10O30 Reduced Niobate with a TTB-Type Structure
Author/Authors
Antipov، E. V. نويسنده , , Istomin، S. Ya. نويسنده , , Mironov، A. V. نويسنده , , Dyachenko، O. G. نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2001
Pages
0
From page
1
To page
0
Abstract
The structure of the cation-deficient Ba4.0(1)Ce0.98(3)Nb10O30 barium cerium reduced niobate with a tetragonal tungsten bronze (TTB) type structure was refined from X-ray single crystal data (tetragonal, a=12.508(2) ?, c=3.9328(4) ?, S. G. P4/mbm, Z=1, R=0.019, Rw=0.023). It was found that rare earth substitution for Ba is accompanied by formation of vacancies in A sites. Vacancies were preferably formed in the A(1) cavities in the structure.
Keywords
diammine magnesium halides , ammoniates of magnesium halides , dynamical disorder of ammonia ligands , neutron diffraction. , order–disorder transitions
Journal title
JOURNAL OF SOLID STATE CHEMISTRY
Serial Year
2001
Journal title
JOURNAL OF SOLID STATE CHEMISTRY
Record number
56679
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