data_Si2P
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.95
_cell_length_b   6.95
_cell_length_c   3.27
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Si2P
_chemical_formula_sum   'Si6 P3'
_cell_volume   136.81
_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
  Si  Si3  1  0.88  0.0  0.63  1.0
  Si  Si4  1  0.06  0.63  0.63  1.0
  Si  Si5  1  0.54  0.4  0.63  1.0
  Si  Si6  1  0.91  0.0  0.0  1.0
  Si  Si7  1  0.04  0.39  0.0  1.0
  Si  Si8  1  0.52  0.63  0.0  1.0
  P  P0  1  0.0  0.02  0.63  1.0
  P  P1  1  0.48  0.01  0.63  1.0
  P  P2  1  0.0  0.0  0.0  1.0

data_Si2P
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.27
_cell_length_b   6.95
_cell_length_c   6.95
_cell_angle_alpha   120.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Si2P
_chemical_formula_sum   'Si6 P3'
_cell_volume   136.81
_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
  Si  Si0  1  0.0  0.04  0.39  1.0
  Si  Si1  1  0.0  0.52  0.63  1.0
  Si  Si2  1  0.0  0.91  0.0  1.0
  Si  Si3  1  0.63  0.06  0.63  1.0
  Si  Si4  1  0.63  0.54  0.4  1.0
  Si  Si5  1  0.63  0.88  0.0  1.0
  P  P6  1  0.0  0.0  0.0  1.0
  P  P7  1  0.63  0.0  0.02  1.0
  P  P8  1  0.63  0.48  0.01  1.0

Si Si Si Si Si Si P P P