data_Ba2SrNb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.83
_cell_length_b   7.83
_cell_length_c   7.83
_cell_angle_alpha   152.41
_cell_angle_beta   131.67
_cell_angle_gamma   56.56
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ba2SrNb
_chemical_formula_sum   'Ba2 Sr1 Nb1'
_cell_volume   164.98
_cell_formula_units_Z   1
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
  Ba  Ba0  1  0.87  0.0  0.2  1.0
  Ba  Ba1  1  0.0  0.2  0.69  1.0
  Sr  Sr3  1  0.0  0.0  0.0  1.0
  Nb  Nb2  1  0.0  0.0  0.89  1.0

data_Ba2SrNb
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.73
_cell_length_b   6.41
_cell_length_c   7.83
_cell_angle_alpha   114.16
_cell_angle_beta   103.79
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ba2SrNb
_chemical_formula_sum   'Ba2 Sr1 Nb1'
_cell_volume   164.98
_cell_formula_units_Z   1
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
  Ba  Ba0  1  0.0  0.2  0.33  1.0
  Ba  Ba1  1  0.8  0.49  0.49  1.0
  Sr  Sr2  1  0.0  0.0  0.0  1.0
  Nb  Nb3  1  0.0  0.89  0.89  1.0

Ba Ba Sr Nb