data_global
_amcsd_formula_title 'Ba5.5 O60 Ta21.8'
loop_
_publ_author_name
'Gasperin M'
_journal_name_full 'Bulletin de la Societe Francaise de Mineralogie et de Cristallographie'
_journal_volume 90 
_journal_year 1967
_journal_page_first 172
_journal_page_last 175
_publ_section_title
;
 Structure cristalline du bronze de tungstene: Ba O (Ta2 O5)2
 _cod_database_code 1001160
;
_database_code_amcsd 0012124
_chemical_formula_sum 'Ba2.75 Ta10.9 O30'
_cell_length_a 17.60
_cell_length_b 17.60
_cell_length_c 3.905
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 1209.613
_exptl_crystal_density_diffrn      7.770
_symmetry_space_group_name_H-M 'P 4'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-y,x,z'
  '-x,-y,z'
  'y,-x,z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Ba1   0.07500   0.25400   0.00000   0.55000
Ba2   0.42500   0.25400   0.00000   0.55000
Ba3   0.00000   0.00000   0.00000   0.55000
Ba4   0.50000   0.50000   0.00000   0.55000
Ta1   0.25200   0.24900   0.50000   1.00000
Ta2   0.14300   0.06700   0.50000   1.00000
Ta3   0.36500   0.43000   0.50000   1.00000
Ta4   0.43200   0.86000   0.50000   1.00000
Ta5   0.06800   0.63800   0.50000   1.00000
Ta6   0.07500   0.25000   0.50000   0.22500
Ta7   0.42600   0.25000   0.50000   0.22500
O1   0.25100   0.25000   0.00000   1.00000
O2   0.36200   0.43600   0.00000   1.00000
O3   0.43400   0.86100   0.00000   1.00000
O4   0.15200   0.05800   0.00000   1.00000
O5   0.05800   0.63800   0.00000   1.00000
O6   0.05100   0.09800   0.50000   1.00000
O7   0.17200   0.17700   0.50000   1.00000
O8   0.45800   0.12200   0.50000   1.00000
O9   0.53300   0.24900   0.50000   1.00000
O10   0.67500   0.17000   0.50000   1.00000
O11   0.24900   0.03100   0.50000   1.00000
O12   0.32500   0.17700   0.50000   1.00000
O13   0.67000   0.33000   0.50000   1.00000
O14   0.59700   0.03300   0.50000   1.00000
O15   0.46900   0.38800   0.50000   1.00000