data_SrSm
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.81
_cell_length_b   6.81
_cell_length_c   6.81
_cell_angle_alpha   32.62
_cell_angle_beta   32.62
_cell_angle_gamma   32.62
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrSm
_chemical_formula_sum   'Sr1 Sm1'
_cell_volume   81.75
_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
  Sr  Sr1  1  0.0  0.0  0.0  1.0
  Sm  Sm0  1  0.0  0.0  0.67  1.0

data_SrSm
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.63
_cell_length_b   3.83
_cell_length_c   6.81
_cell_angle_alpha   90.0
_cell_angle_beta   108.92
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrSm
_chemical_formula_sum   'Sr2 Sm2'
_cell_volume   163.5
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Sr  Sr0  2  0.0  0.0  0.0  1.0
  Sm  Sm1  2  0.0  0.0  0.33  1.0

Sr Sm