data_Sr2C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.23
_cell_length_b   4.23
_cell_length_c   22.51
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2C
_chemical_formula_sum   'Sr6 C3'
_cell_volume   349.21
_cell_formula_units_Z   3
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  Sr3  1  0.0  0.0  0.93  1.0
  Sr  Sr4  1  0.0  0.0  0.58  1.0
  Sr  Sr5  1  0.0  0.44  0.62  1.0
  Sr  Sr6  1  0.12  0.22  0.89  1.0
  Sr  Sr7  1  0.0  0.44  0.31  1.0
  Sr  Sr8  1  0.12  0.22  0.19  1.0
  C  C0  1  0.0  0.0  0.0  1.0
  C  C1  1  0.0  0.44  0.09  1.0
  C  C2  1  0.12  0.22  0.41  1.0

data_Sr2C
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.23
_cell_length_b   4.23
_cell_length_c   22.51
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2C
_chemical_formula_sum   'Sr6 C3'
_cell_volume   349.21
_cell_formula_units_Z   3
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  -0.0  0.44  0.31  1.0
  Sr  Sr1  1  -0.0  0.44  0.62  1.0
  Sr  Sr2  1  0.0  0.0  0.58  1.0
  Sr  Sr3  1  0.0  0.0  0.93  1.0
  Sr  Sr4  1  0.12  0.22  0.19  1.0
  Sr  Sr5  1  0.12  0.22  0.89  1.0
  C  C6  1  -0.0  0.44  0.09  1.0
  C  C7  1  0.0  0.0  0.0  1.0
  C  C8  1  0.12  0.22  0.41  1.0

Sr Sr Sr Sr Sr Sr C C C