data_SrC
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.91
_cell_length_b   4.91
_cell_length_c   5.0
_cell_angle_alpha   94.1
_cell_angle_beta   94.1
_cell_angle_gamma   49.5
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrC
_chemical_formula_sum   'Sr2 C2'
_cell_volume   91.39
_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  0.43  0.0  0.77  1.0
  Sr  Sr3  1  0.1  0.0  0.21  1.0
  C  C0  1  0.97  0.0  0.63  1.0
  C  C1  1  0.56  0.0  0.35  1.0

data_SrC
_symmetry_space_group_name_H-M   P-1
_cell_length_a   4.11
_cell_length_b   4.91
_cell_length_c   5.0
_cell_angle_alpha   94.1
_cell_angle_beta   90.0
_cell_angle_gamma   114.75
_symmetry_Int_Tables_number   2
_chemical_formula_structural   SrC
_chemical_formula_sum   'Sr2 C2'
_cell_volume   91.39
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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  2  0.0  0.34  0.22  1.0
  C  C1  2  0.0  0.2  0.64  1.0

Sr Sr C C
Sr Sr C C 0 2 - o o 0 3 o o o 1 2 - o o 1 3 o o o 2 3 o o o 