#------------------------------------------------------------------------------
#$Date: 2016-02-13 20:28:24 +0100 (Sat 13 de Feb de 2016) $
#$Revision: 176429 $
#$URL: svn://www.crystallography.net/cod/cif/2/30/05/2300543.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided by IUCr Journals, http://journals.iucr.org/.
#
# The file may be used within the scientific community so long as
# proper attribution is given to the journal article from which the
# data were obtained.
#
data_2300543
loop_
_publ_author_name
'Muller, C.'
'Jacob, F.'
'Gagou, Y.'
'Elkaim, E.'
_publ_section_title
;
 Cationic disorder, microstructure and dielectric response of
 ferroelectric SBT ceramics
;
_journal_name_full               'Journal of Applied Crystallography'
_journal_page_first              880
_journal_page_last               889
_journal_volume                  36
_journal_year                    2003
_chemical_formula_sum            'Bi2 O9 Sr Ta2'
_chemical_name_systematic        'Sr (Bi2 Ta2 O9)'
_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                   5.5186
_cell_length_b                   5.52
_cell_length_c                   25.0485
_cell_volume                     763.044
_citation_journal_id_ASTM        JACGAR
_cod_data_source_file            Muller_JACGAR_2003_1857.cif
_cod_data_source_block           Bi2O9Sr1Ta2
_cod_original_cell_volume        763.0443
_cod_original_sg_symbol_Hall     'C 2c -2 (z,y,-x)'
_cod_original_formula_sum        'Bi2 O9 Sr1 Ta2'
_cod_database_code               2300543
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
O3 O-2 0.744 0.988 0.2504 1 0.0
Bi1 Bi+3 0 0.259 0 0.114 0.0
O4 O-2 0.761 0.986 0.0694 1 0.0
Sr2 Sr+2 0.472 0.774 0.2009 0.058 0.0
Ta1 Ta+5 0.518 0.7479 0.4147 1 0.0
Sr1 Sr+2 0 0.259 0 0.886 0.0
O2 O-2 0.53 0.695 0.3412 1 0.0
Bi2 Bi+3 0.472 0.774 0.2009 0.942 0.0
O5 O-2 0.796 0.981 0.583 1 0.0
O1 O-2 0.527 0.287 0 1 0.0
