#------------------------------------------------------------------------------
#$Date: 2016-02-13 14:50:18 +0200 (Sat, 13 Feb 2016) $
#$Revision: 176428 $
#$URL: svn://www.crystallography.net/cod/cif/1/53/15/1531561.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_1531561
loop_
_publ_author_name
'Idemoto, Y.'
'Sato, Y.'
'Richardson, Jr, J. W.'
'Koura, N.'
'Loong, Chun-K.'
'Takeuchi, K.'
_publ_section_title
;
 Effect of Heat Treatment for Crystal Structure and Ferroelectric
 Properties of Sr₁₋ₓBi₂₊ₓTa₂O~9-δ~ (x=0, 0.2)
;
_journal_issue                   1285
_journal_name_full               'Journal of the Ceramic Society of Japan'
_journal_page_first              859
_journal_page_last               866
_journal_paper_doi               10.2109/jcersj.110.859
_journal_volume                  110
_journal_year                    2002
_chemical_formula_sum            'Bi2.2 O8.766 Sr0.8 Ta2'
_chemical_name_systematic        '(Sr0.8 Bi0.2) Bi2 Ta2 O8.766'
_space_group_IT_number           36
_symmetry_space_group_name_Hall  'A -2 2a'
_symmetry_space_group_name_H-M   'A 21 a m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   5.515
_cell_length_b                   5.5152
_cell_length_c                   25.0285
_cell_volume                     761.275
_citation_journal_id_ASTM        JCSJEW
_cod_data_source_file            Idemoto_JCSJEW_2002_1960.cif
_cod_data_source_block           Bi2.2O8.766Sr0.8Ta2
_cod_original_sg_symbol_Hall     'C 2c -2 (z,y,-x)'
_cod_database_code               1531561
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
x+1/2,-y,-z
x,y,-z
x+1/2,-y,z
x,y+1/2,z+1/2
x+1/2,-y+1/2,-z+1/2
x,y+1/2,-z+1/2
x+1/2,-y+1/2,z+1/2
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Sr1 Sr+2 0.0003 0.2443 0 0.8 0.0
Ta1 Ta+4 0.5139 0.7418 0.41427 1 0.0
O5 O-2 0.7926 0.9703 0.58426 0.998 0.0
O2 O-2 0.5255 0.6949 0.34252 1 0.0
Bi1 Bi+3 0.0003 0.2443 0 0.2 0.0
O1 O-2 0.526 0.3011 0 1 0.0
Bi2 Bi+3 0.4626 0.7654 0.20077 1 0.0
O3 O-2 0.7345 0.9979 0.25188 0.949 0.0
O4 O-2 0.7516 0.9824 0.07042 0.936 0.0
