data_Ni2PW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.9
_cell_length_b   4.9
_cell_length_c   4.9
_cell_angle_alpha   146.48
_cell_angle_beta   130.35
_cell_angle_gamma   61.24
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ni2PW
_chemical_formula_sum   'Ni2 P1 W1'
_cell_volume   48.9
_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
  Ni  Ni0  1  0.41  0.0  0.86  1.0
  Ni  Ni1  1  0.0  0.06  0.36  1.0
  P  P2  1  0.0  0.0  0.0  1.0
  W  W3  1  0.0  0.0  0.21  1.0

data_Ni2PW
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.82
_cell_length_b   4.11
_cell_length_c   4.9
_cell_angle_alpha   114.82
_cell_angle_beta   106.76
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ni2PW
_chemical_formula_sum   'Ni2 P1 W1'
_cell_volume   48.9
_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
  Ni  Ni0  1  0.55  0.14  0.55  1.0
  Ni  Ni1  1  0.64  0.7  0.7  1.0
  P  P2  1  0.0  0.0  0.0  1.0
  W  W3  1  0.79  0.79  0.79  1.0

Ni Ni P W
WNi2P crystallizes in the triclinic P1 space group. W(1) is bonded in a 2-coordinate geometry to one Ni(1), one Ni(2), and one P(1) atom. The W(1)-Ni(1) bond length is 2.20 Å. The W(1)-Ni(2) bond length is 0.50 Å. The W(1)-P(1) bond length is 1.04 Å. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 7-coordinate geometry to one W(1), two equivalent Ni(1), two equivalent Ni(2), and two equivalent P(1) atoms. Both Ni(1)-Ni(1) bond lengths are 2.82 Å. There is one shorter (2.08 Å) and one longer (2.21 Å) Ni(1)-Ni(2) bond length. There is one shorter (2.49 Å) and one longer (2.53 Å) Ni(1)-P(1) bond length. In the second Ni site, Ni(2) is bonded in a single-bond geometry to one W(1) and two equivalent Ni(1) atoms. P(1) is bonded in a distorted single-bond geometry to one W(1) and two equivalent Ni(1) atoms.