data_PaAs
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.22
_cell_length_b   4.22
_cell_length_c   4.22
_cell_angle_alpha   55.61
_cell_angle_beta   55.61
_cell_angle_gamma   55.61
_symmetry_Int_Tables_number   1
_chemical_formula_structural   PaAs
_chemical_formula_sum   'Pa1 As1'
_cell_volume   47.61
_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
  Pa  Pa1  1  0.0  0.0  0.33  1.0
  As  As0  1  0.0  0.0  0.0  1.0

data_PaAs
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.81
_cell_length_b   3.93
_cell_length_c   4.22
_cell_angle_alpha   90.0
_cell_angle_beta   122.59
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   PaAs
_chemical_formula_sum   'Pa2 As2'
_cell_volume   95.21
_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
  Pa  Pa0  2  0.0  0.0  0.33  1.0
  As  As1  2  0.0  0.0  0.0  1.0

Pa As