data_SbP2Se
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.34
_cell_length_b   7.34
_cell_length_c   7.34
_cell_angle_alpha   151.32
_cell_angle_beta   151.32
_cell_angle_gamma   41.01
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SbP2Se
_chemical_formula_sum   'Sb1 P2 Se1'
_cell_volume   90.9
_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
  Sb  Sb2  1  0.82  0.0  0.44  1.0
  P  P0  1  0.0  0.82  0.44  1.0
  P  P1  1  0.0  0.0  0.0  1.0
  Se  Se3  1  0.0  0.0  0.88  1.0

data_SbP2Se
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.64
_cell_length_b   3.64
_cell_length_c   7.34
_cell_angle_alpha   104.34
_cell_angle_beta   104.34
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SbP2Se
_chemical_formula_sum   'Sb1 P2 Se1'
_cell_volume   90.9
_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
  Sb  Sb0  1  0.56  0.0  0.38  1.0
  P  P1  1  0.0  0.0  0.0  1.0
  P  P2  1  0.38  0.82  0.38  1.0
  Se  Se3  1  0.12  0.0  0.12  1.0

Sb P P Se
Sb P P Se 0 1 + - o 2 3 o o - 
SbPPSe is alpha carbon monoxide-like structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one antimony phosphide molecule and one phosphine selenide molecule.