data_SiAsP
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.38
_cell_length_b   4.38
_cell_length_c   2.89
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiAsP
_chemical_formula_sum   'Si1 As1 P1'
_cell_volume   48.04
_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
  Si  Si2  1  0.0  0.0  0.71  1.0
  As  As0  1  0.19  0.27  0.76  1.0
  P  P1  1  0.0  0.53  0.29  1.0

data_SiAsP
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.89
_cell_length_b   4.38
_cell_length_c   4.38
_cell_angle_alpha   120.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiAsP
_chemical_formula_sum   'Si1 As1 P1'
_cell_volume   48.04
_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
  Si  Si0  1  0.71  0.0  0.0  1.0
  As  As1  1  0.76  0.19  0.27  1.0
  P  P2  1  0.29  0.0  0.53  1.0

Si As P