data_SiPCl2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.28
_cell_length_b   10.28
_cell_length_c   10.28
_cell_angle_alpha   19.4
_cell_angle_beta   19.4
_cell_angle_gamma   19.4
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiPCl2
_chemical_formula_sum   'Si1 P1 Cl2'
_cell_volume   104.96
_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  Si3  1  0.0  0.0  0.0  1.0
  P  P2  1  0.0  0.0  0.13  1.0
  Cl  Cl0  1  0.0  0.0  0.81  1.0
  Cl  Cl1  1  0.0  0.0  0.45  1.0

data_SiPCl2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.0
_cell_length_b   3.47
_cell_length_c   10.28
_cell_angle_alpha   90.0
_cell_angle_beta   101.22
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SiPCl2
_chemical_formula_sum   'Si2 P2 Cl4'
_cell_volume   209.93
_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
  Si  Si0  2  0.0  0.0  0.0  1.0
  P  P1  2  0.0  0.0  0.87  1.0
  Cl  Cl2  2  0.0  0.0  0.19  1.0
  Cl  Cl3  2  0.0  0.0  0.55  1.0

Si P Cl Cl
Si P Cl Cl 0 1 o o o 0 2 o o - 1 3 o o o 2 3 o o o 3 3 o + - 3 3 + - o 3 3 + o - 
(SiPCl)2Cl2 is Cyanogen Chloride-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two chlorosilylidynephosphane molecules and two hydrochloric acid atoms.