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#$Date: 2016-02-13 13:50:18 +0100 (Sat 13 de Feb de 2016) $
#$Revision: 176428 $
#$URL: svn://www.crystallography.net/cod/cif/1/53/16/1531668.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_1531668
loop_
_publ_author_name
'Kim, J.S.'
'Cheon, C.-I.'
'Lee, C.H.'
'Choo, W.-G.'
_publ_section_title
;
 Crystal structure of high temperature phase in (Bi2 O2)-layered
 perovskites A Bi2 M2 O9 (A = Pb, Sr; M = Nb, Ta)
;
_journal_name_full               'Journal of the Korean Ceramic Society'
_journal_page_first              962
_journal_page_last               966
_journal_volume                  38
_journal_year                    2001
_chemical_formula_sum            'Bi1.97 O8.9 Sr0.96 Ta2'
_chemical_name_systematic        'Sr0.96 Bi1.97 Ta2 O8.9'
_space_group_IT_number           38
_symmetry_space_group_name_Hall  'A -2 -2'
_symmetry_space_group_name_H-M   'A m 2 m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   5.527
_cell_length_b                   5.5244
_cell_length_c                   24.9935
_cell_volume                     763.136
_citation_journal_id_ASTM        HSHAF7
_cod_data_source_file            Kim_HSHAF7_2001_632.cif
_cod_data_source_block           Bi1.97O8.9Sr0.96Ta2
_cod_original_cell_volume        763.1355
_cod_original_sg_symbol_Hall     'A 2 -2 (-x,z,y)'
_cod_database_code               1531668
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,y,-z
-x,y,z
x,y,-z
x,y+1/2,z+1/2
-x,y+1/2,-z+1/2
-x,y+1/2,z+1/2
x,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
Ta2 Ta+5 0.5 0.0029 0.9101 1 0.0
Bi1 Bi+3 0.5 0.5023 0 0.07 0.0
Ta1 Ta+5 0 0.0017 0.4174 1 0.0
O1 O-2 0 0.4501 0 1 0.0
O2 O-2 0.5 -0.0318 0 0.8 0.0
O3 O-2 0 0.0428 0.3447 1 0.0
O7 O-2 0.7481 0.2423 0.5718 1 0.0
O5 O-2 0.2402 0.2441 0.248 1 0.0
O4 O-2 0.5 -0.0678 0.8392 1 0.0
Sr1 Sr+2 0 0 0 1 0.0
Bi3 Bi+3 0.5 0.0111 0.7055 1 0.0
O6 O-2 0.2515 0.2332 0.0829 1 0.0
Bi2 Bi+3 0 -0.0093 0.1933 0.94 0.0
Sr2 Sr+2 0.5 0.5023 0 0.93 0.0
