data_Be(SnO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.15
_cell_length_b   6.15
_cell_length_c   6.15
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Be(SnO2)2
_chemical_formula_sum   'Be2 Sn4 O8'
_cell_volume   164.68
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Be  Be0  1  0.0  0.0  0.0  1.0
  Be  Be1  1  0.18  0.18  0.18  1.0
  Sn  Sn10  1  0.26  0.26  0.44  1.0
  Sn  Sn11  1  0.26  0.44  0.26  1.0
  Sn  Sn12  1  0.44  0.26  0.26  1.0
  Sn  Sn13  1  0.44  0.44  0.44  1.0
  O  O2  1  0.33  0.33  0.72  1.0
  O  O3  1  0.16  0.16  0.16  1.0
  O  O4  1  0.16  0.54  0.54  1.0
  O  O5  1  0.54  0.16  0.54  1.0
  O  O6  1  0.33  0.72  0.33  1.0
  O  O7  1  0.72  0.72  0.72  1.0
  O  O8  1  0.72  0.33  0.33  1.0
  O  O9  1  0.54  0.54  0.16  1.0

data_Be(SnO2)2
_symmetry_space_group_name_H-M   R3m
_cell_length_a   6.15
_cell_length_b   6.15
_cell_length_c   15.07
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   Be(SnO2)2
_chemical_formula_sum   'Be6 Sn12 O24'
_cell_volume   494.03
_cell_formula_units_Z   6
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Be  Be0  3  0.0  0.0  0.0  1.0
  Be  Be1  3  0.0  0.0  0.82  1.0
  Sn  Sn2  9  0.06  0.12  0.68  1.0
  Sn  Sn3  3  0.0  0.0  0.56  1.0
  O  O4  9  0.08  0.54  0.2  1.0
  O  O5  9  0.21  0.79  0.25  1.0
  O  O6  3  0.0  0.0  0.28  1.0
  O  O7  3  0.0  0.0  0.84  1.0

Be Be Sn Sn Sn Sn O O O O O O O O