data_global
_amcsd_formula_title 'Al6 O18 Sr9'
loop_
_publ_author_name
'Alonso J'
'Rasines I'
'Soubeyroux J'
_journal_name_full 'Inorganic Chemistry'
_journal_volume 29 
_journal_year 1990
_journal_page_first 4768
_journal_page_last 4771
_publ_section_title
;
 Tristrontium dialuminium hexaoxide: An intricate superstructure of perovskite
 _cod_database_code 1008450
;
_database_code_amcsd 0016355
_chemical_formula_sum 'Sr3 Al2 O6'
_cell_length_a 15.8476
_cell_length_b 15.8476
_cell_length_c 15.8476
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 3980.068
_exptl_crystal_density_diffrn      4.134
_symmetry_space_group_name_H-M 'P a 3'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+z,x,1/2-y'
  'z,1/2-x,1/2+y'
  '1/2-z,1/2+x,y'
  '-z,-x,-y'
  '1/2+y,1/2-z,-x'
  '1/2-y,-z,1/2+x'
  '-y,1/2+z,1/2-x'
  'y,z,x'
  'x,1/2-y,1/2+z'
  '1/2-x,1/2+y,z'
  '1/2+x,y,1/2-z'
  '-x,-y,-z'
  '1/2-z,-x,1/2+y'
  '-z,1/2+x,1/2-y'
  '1/2+z,1/2-x,-y'
  'z,x,y'
  '1/2-y,1/2+z,x'
  '1/2+y,z,1/2-x'
  'y,1/2-z,1/2+x'
  '-y,-z,-x'
  '-x,1/2+y,1/2-z'
  '1/2+x,1/2-y,-z'
  '1/2-x,-y,1/2+z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Sr1   0.00000   0.00000   0.00000
Sr2   0.50000   0.00000   0.00000
Sr3   0.25210   0.25210   0.25210
Sr4   0.37650   0.37650   0.37640
Sr5   0.13450   0.37450   0.13320
Sr6   0.37930   0.38520   0.12420
Al1   0.25200   0.01640   0.01840
Al2   0.23920   0.23450   0.00410
O1   0.26310   0.12570   0.00320
O2   0.49300   0.12750   0.24480
O3   0.26970   0.27620   0.10010
O4   0.23520   0.40650   0.28040
O5   0.34580  -0.02610  -0.01880
O6   0.15440  -0.01750  -0.01770