data_NiSnP2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.52
_cell_length_b   4.52
_cell_length_c   4.52
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NiSnP2
_chemical_formula_sum   'Ni1 Sn1 P2'
_cell_volume   65.45
_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
  Ni  Ni0  1  0.0  0.0  0.0  1.0
  Sn  Sn3  1  0.2  0.2  0.2  1.0
  P  P1  1  0.6  0.6  0.6  1.0
  P  P2  1  0.8  0.8  0.8  1.0

data_NiSnP2
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.52
_cell_length_b   4.52
_cell_length_c   11.08
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   NiSnP2
_chemical_formula_sum   'Ni3 Sn3 P6'
_cell_volume   196.34
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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
  Ni  Ni0  3  0.0  0.0  0.0  1.0
  Sn  Sn1  3  0.0  0.0  0.8  1.0
  P  P2  3  0.0  0.0  0.2  1.0
  P  P3  3  0.0  0.0  0.4  1.0

Ni Sn P P
Ni Sn P P 0 3 - - - 0 2 - - o 0 2 - o - 0 2 o - - 0 1 o o o 0 1 o o - 0 1 - o o 0 1 o - o 1 3 - - o 1 3 - o - 1 3 o - - 1 2 - o o 1 2 o - o 1 2 o o - 2 3 o - o 2 3 - o o 2 3 o o - 2 3 o o o 
NiSnP2 crystallizes in the trigonal R3m space group. Ni(1) is bonded in a 5-coordinate geometry to one Sn(1), one P(2), and three equivalent P(1) atoms. The Ni(1)-Sn(1) bond length is 2.20 Å. The Ni(1)-P(2) bond length is 2.24 Å. All Ni(1)-P(1) bond lengths are 2.72 Å. Sn(1) is bonded in a 7-coordinate geometry to one Ni(1), three equivalent P(1), and three equivalent P(2) atoms. All Sn(1)-P(1) bond lengths are 2.72 Å. All Sn(1)-P(2) bond lengths are 2.72 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded to three equivalent Ni(1), three equivalent Sn(1), and one P(2) atom to form distorted edge-sharing PNi3Sn3P hexagonal pyramids. The P(1)-P(2) bond length is 2.20 Å. In the second P site, P(2) is bonded in a 5-coordinate geometry to one Ni(1), three equivalent Sn(1), and one P(1) atom.