data_CoSiP2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.85
_cell_length_b   2.85
_cell_length_c   6.33
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CoSiP2
_chemical_formula_sum   'Co1 Si1 P2'
_cell_volume   51.56
_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
  Co  Co0  1  0.0  0.0  0.17  1.0
  Si  Si3  1  0.0  0.0  0.0  1.0
  P  P1  1  0.43  0.43  0.51  1.0
  P  P2  1  0.43  0.43  0.82  1.0

data_CoSiP2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.04
_cell_length_b   4.04
_cell_length_c   6.33
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   CoSiP2
_chemical_formula_sum   'Co2 Si2 P4'
_cell_volume   103.12
_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
  Co  Co0  2  0.0  0.0  0.17  1.0
  Si  Si1  2  0.0  0.0  0.0  1.0
  P  P2  2  0.43  0.0  0.51  1.0
  P  P3  2  0.43  0.0  0.82  1.0

Co Si P P
CoSiP2 crystallizes in the monoclinic Cm space group. Co(1) is bonded in a single-bond geometry to one Si(1) and three equivalent P(1) atoms. The Co(1)-Si(1) bond length is 1.05 Å. There is one shorter (2.79 Å) and two longer (3.00 Å) Co(1)-P(1) bond lengths. Si(1) is bonded in a 5-coordinate geometry to one Co(1) and four equivalent P(2) atoms. There are a spread of Si(1)-P(2) bond distances ranging from 2.07-2.58 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded in a 4-coordinate geometry to three equivalent Co(1) and one P(2) atom. The P(1)-P(2) bond length is 1.94 Å. In the second P site, P(2) is bonded in a 5-coordinate geometry to four equivalent Si(1) and one P(1) atom.