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#$Date: 2008-01-14 00:15:36 +0200 (Mon, 14 Jan 2008) $
#$Revision: 14 $
#$URL: file:///home/coder/svn-repositories/cod/cif/1/1011289.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_1011289
_chemical_name_systematic          'Terbium oxide'
_chemical_formula_structural       'Tb2 O3'
_chemical_formula_sum              'O3 Tb2'
_publ_section_title
;
Untersuchungen ueber die Kristallstruktur von Sesquioxyden und
Verbindungen ABO~3~
;
_publ_author_name                  'Zachariasen, W H'
_journal_name_full
;
Skrifter utgitt av det Norske Videnskaps-Akademi i Oslo 1: Matematisk-
Naturvidenskapelig Klasse
;
_journal_coden_ASTM                SUNVAQ
_journal_volume                    1928
_journal_year                      1928
_journal_page_first                1
_journal_page_last                 165
_cell_length_a                     10.72(2)
_cell_length_b                     10.72(2)
_cell_length_c                     10.72(2)
_cell_angle_alpha                  90
_cell_angle_beta                   90
_cell_angle_gamma                  90
_cell_volume                       1231.9
_cell_formula_units_Z              16
_exptl_crystal_density_meas        7.86
_symmetry_space_group_name_H-M     'I 21 3'
_symmetry_Int_Tables_number        199
_symmetry_cell_setting             cubic
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  'y,z,x'
  'z,x,y'
  '1/2+x,1/2-y,-z'
  '1/2+y,1/2-z,-x'
  '1/2+z,1/2-x,-y'
  '-x,1/2+y,1/2-z'
  '-y,1/2+z,1/2-x'
  '-z,1/2+x,1/2-y'
  '1/2-x,-y,1/2+z'
  '1/2-y,-z,1/2+x'
  '1/2-z,-x,1/2+y'
  '1/2+x,1/2+y,1/2+z'
  '1/2+y,1/2+z,1/2+x'
  '1/2+z,1/2+x,1/2+y'
  'x,-y,1/2-z'
  'y,-z,1/2-x'
  'z,-x,1/2-y'
  '1/2-x,y,-z'
  '1/2-y,z,-x'
  '1/2-z,x,-y'
  '-x,1/2-y,z'
  '-y,1/2-z,x'
  '-z,1/2-x,y'
loop_
_atom_type_symbol
_atom_type_oxidation_number
  Tb3+   3.000
  O2-   -2.000
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_symmetry_multiplicity
_atom_site_Wyckoff_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_attached_hydrogens
_atom_site_calc_flag
  Tb1   Tb3+   8 a 0.25 0.25 0.25 1.  0 d
  Tb2   Tb3+  12 b 0.021(7) 0. 0.25 1.  0 d
  Tb3   Tb3+  12 b 0.542(14) 0. 0.25 1.  0 d
  O1    O2-   24 c 0.125 0.125 0.375 1.  0 d
  O2    O2-   24 c 0.125 0.375 0.375 1.  0 d