data_AsP3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.86
_cell_length_b   2.86
_cell_length_c   8.36
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   112.38
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AsP3
_chemical_formula_sum   'As1 P3'
_cell_volume   63.44
_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
  As  As0  1  0.0  0.0  0.18  1.0
  P  P1  1  0.59  0.0  0.85  1.0
  P  P2  1  0.0  0.0  0.0  1.0
  P  P3  1  0.59  0.0  0.51  1.0

data_AsP3
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.86
_cell_length_b   2.86
_cell_length_c   8.36
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   112.38
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AsP3
_chemical_formula_sum   'As1 P3'
_cell_volume   63.44
_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
  As  As0  1  0.0  0.0  0.18  1.0
  P  P1  1  0.0  0.0  0.0  1.0
  P  P2  1  0.59  0.0  0.51  1.0
  P  P3  1  0.59  0.0  0.85  1.0

As P P P
As P P P 0 2 o o o 0 3 o o o 0 3 - o o 1 2 + o + 1 3 o o o 3 3 + + o 3 3 o + o 3 3 + o o 
AsP3 crystallizes in the triclinic P1 space group. As(1) is bonded in a single-bond geometry to one P(2) and one P(3) atom. The As(1)-P(2) bond length is 1.51 Å. The As(1)-P(3) bond length is 3.02 Å. There are three inequivalent P sites. In the first P site, P(1) is bonded in a 2-coordinate geometry to one P(3) and two equivalent P(2) atoms. The P(1)-P(3) bond length is 2.79 Å. There is one shorter (1.73 Å) and one longer (2.13 Å) P(1)-P(2) bond length. In the second P site, P(2) is bonded in a 3-coordinate geometry to one As(1) and two equivalent P(1) atoms. In the third P site, P(3) is bonded in a 6-coordinate geometry to one As(1), one P(1), and four equivalent P(3) atoms. All P(3)-P(3) bond lengths are 2.86 Å.