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#$Date: 2016-02-13 21:28:24 +0200 (Sat, 13 Feb 2016) $
#$Revision: 176429 $
#$URL: svn://www.crystallography.net/cod/cif/1/53/17/1531756.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_1531756
loop_
_publ_author_name
'Miura, K.'
_publ_section_title
;
 Electronic properties of ferroelectric Sr Bi2 Ta2 O9, Sr Bi2 Nb2 O9 and
 Pb Bi2 Nb2 O9
;
_journal_name_full               'Applied Physics Letters'
_journal_page_first              2967
_journal_page_last               2969
_journal_volume                  80
_journal_year                    2002
_chemical_formula_sum            'Bi2 Nb2 O9 Pb'
_chemical_name_systematic        'Pb Bi2 (Nb2 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                   5.496
_cell_length_b                   5.496
_cell_length_c                   25.55
_cell_volume                     771.764
_citation_journal_id_ASTM        APPLAB
_cod_data_source_file            Miura_APPLAB_2002_1110.cif
_cod_data_source_block           Bi2Nb2O9Pb1
_cod_original_cell_volume        771.7636
_cod_original_sg_symbol_Hall     'C 2c -2 (z,y,-x)'
_cod_original_formula_sum        'Bi2 Nb2 O9 Pb1'
_cod_database_code               1531756
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
O4 O-2 0.7377 0.98977 0.9309 1 0.0
Pb1 Pb+2 -0.03039 0.25824 0 1 0.0
O5 O-2 0.77588 0.97094 0.58889 1 0.0
O3 O-2 0.71276 0.99281 0.25155 1 0.0
O2 O-2 0.50389 0.67855 0.34012 1 0.0
Bi1 Bi+3 0.44498 0.77868 0.20026 1 0.0
Nb1 Nb+5 0.47756 0.7476 0.413 1 0.0
O1 O-2 0.50852 0.30289 0 1 0.0
