data_Sr2As
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.16
_cell_length_b   7.16
_cell_length_c   7.22
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   144.43
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2As
_chemical_formula_sum   'Sr4 As2'
_cell_volume   215.32
_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
  Sr  Sr2  1  0.19  0.25  0.11  1.0
  Sr  Sr3  1  0.19  0.75  0.5  1.0
  Sr  Sr4  1  0.19  0.93  0.73  1.0
  Sr  Sr5  1  0.19  0.07  0.12  1.0
  As  As0  1  0.19  0.43  0.8  1.0
  As  As1  1  0.19  0.57  0.19  1.0

data_Sr2As
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.37
_cell_length_b   7.16
_cell_length_c   7.22
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   107.78
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2As
_chemical_formula_sum   'Sr4 As2'
_cell_volume   215.32
_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
  Sr  Sr0  1  0.07  0.26  0.73  1.0
  Sr  Sr1  1  0.25  0.44  0.5  1.0
  Sr  Sr2  1  0.75  0.93  0.11  1.0
  Sr  Sr3  1  0.93  0.12  0.12  1.0
  As  As4  1  0.43  0.61  0.19  1.0
  As  As5  1  0.57  0.76  0.8  1.0

Sr Sr Sr Sr As As