data_global
_amcsd_formula_title 'SbTaO4'
loop_
_publ_author_name
'Jeitschko W'
'Sleight A W'
_journal_name_full 'Acta Crystallographica, Section B'
_journal_volume 30 
_journal_year 1974
_journal_page_first 2088
_journal_page_last 2094
_publ_section_title
;
 Alpha stannous tungstate: Properties, crystal structure and relationship to
 ferroelectric SbTaO4 type compounds
;
_database_code_amcsd 0009511
_chemical_formula_sum 'Sn W O4'
_cell_length_a 5.6270
_cell_length_b 11.6486
_cell_length_c 4.9973
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 327.556
_exptl_crystal_density_diffrn      7.433
_symmetry_space_group_name_H-M 'P n n a'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2-y,1/2+z'
  '1/2-x,1/2+y,1/2-z'
  '-x,1/2+y,1/2+z'
  'x,1/2-y,1/2-z'
  '1/2+x,y,-z'
  '1/2-x,-y,z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Sn   0.25000   0.00000   0.21960 ?
W   0.66770   0.25000   0.25000 ?
O1   0.37650   0.29870   0.99880   0.01127
O2   0.10190   0.39610   0.60370   0.00811
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Sn 0.01601 0.01141 0.00712 0.00282 0.00000 0.00000
W 0.00433 0.00516 0.00434 0.00000 -0.00043 0.00000