data_SrP2W
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.18
_cell_length_b   3.18
_cell_length_c   7.12
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrP2W
_chemical_formula_sum   'Sr1 P2 W1'
_cell_volume   72.0
_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
  Sr  Sr2  1  0.0  0.0  0.0  1.0
  P  P0  1  0.59  0.59  0.92  1.0
  P  P1  1  0.59  0.59  0.2  1.0
  W  W3  1  0.0  0.0  0.56  1.0

data_SrP2W
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.5
_cell_length_b   4.5
_cell_length_c   7.12
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrP2W
_chemical_formula_sum   'Sr2 P4 W2'
_cell_volume   144.01
_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
  Sr  Sr0  2  0.0  0.0  0.0  1.0
  P  P1  2  0.09  0.5  0.2  1.0
  P  P2  2  0.09  0.5  0.92  1.0
  W  W3  2  0.0  0.0  0.56  1.0

Sr P P W
SrWP2 crystallizes in the monoclinic Cm space group. Sr(1) is bonded in a 9-coordinate geometry to one W(1), four equivalent P(1), and four equivalent P(2) atoms. The Sr(1)-W(1) bond length is 3.12 Å. There are a spread of Sr(1)-P(1) bond distances ranging from 1.92-2.71 Å. There are a spread of Sr(1)-P(2) bond distances ranging from 2.33-3.01 Å. W(1) is bonded in a 7-coordinate geometry to one Sr(1), four equivalent W(1), one P(1), and one P(2) atom. All W(1)-W(1) bond lengths are 3.18 Å. The W(1)-P(1) bond length is 3.17 Å. The W(1)-P(2) bond length is 3.17 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded in a 3-coordinate geometry to four equivalent Sr(1), one W(1), and one P(2) atom. The P(1)-P(2) bond length is 1.97 Å. In the second P site, P(2) is bonded in a 6-coordinate geometry to four equivalent Sr(1), one W(1), and one P(1) atom.