data_Y4C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.36
_cell_length_b   6.36
_cell_length_c   6.36
_cell_angle_alpha   93.92
_cell_angle_beta   93.92
_cell_angle_gamma   149.69
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Y4C
_chemical_formula_sum   'Y4 C1'
_cell_volume   125.19
_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
  Y  Y1  1  0.84  0.28  0.0  1.0
  Y  Y2  1  0.28  0.84  0.0  1.0
  Y  Y3  1  0.5  0.06  0.66  1.0
  Y  Y4  1  0.06  0.5  0.66  1.0
  C  C0  1  0.0  0.0  0.0  1.0

data_Y4C
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.32
_cell_length_b   12.27
_cell_length_c   6.36
_cell_angle_alpha   90.0
_cell_angle_beta   105.16
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Y4C
_chemical_formula_sum   'Y8 C2'
_cell_volume   250.38
_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
  Y  Y0  4  0.22  0.28  0.34  1.0
  Y  Y1  4  0.44  0.28  -0.0  1.0
  C  C2  2  0.0  0.0  0.0  1.0

Y Y Y Y C