The material described by SrPO4 crystallizes in the triclinic P-1 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 8-coordinate geometry to one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), and two equivalent O(2) atoms. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to one O(2), one O(4), one O(5), one O(6), one O(7), one O(8), and two equivalent O(1) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. In the second P site, P(2) is bonded in a tetrahedral geometry to one O(5), one O(6), one O(7), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Sr(2) and one P(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Sr(2), two equivalent Sr(1), and one P(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Sr(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(2), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Sr(1), one Sr(2), and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Sr(1), one Sr(2), and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one Sr(1), one Sr(2), and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one Sr(1), one Sr(2), and one P(2) atom. is represented by the CIF file [CIF]
data_SrPO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.885
_cell_length_b   7.280
_cell_length_c   7.309
_cell_angle_alpha   101.302
_cell_angle_beta   96.748
_cell_angle_gamma   89.590
_symmetry_Int_Tables_number   1
_cell_volume   356.708
_cell_formula_units_Z   4
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  Sr0  1  0.447  0.305  0.245  1.0
  Sr  Sr1  1  0.553  0.695  0.755  1.0
  Sr  Sr2  1  0.858  0.184  0.689  1.0
  Sr  Sr3  1  0.142  0.816  0.311  1.0
  P  P4  1  0.623  0.796  0.290  1.0
  P  P5  1  0.377  0.204  0.710  1.0
  P  P6  1  0.950  0.295  0.217  1.0
  P  P7  1  0.050  0.705  0.783  1.0
  O  O8  1  0.805  0.875  0.425  1.0
  O  O9  1  0.195  0.125  0.575  1.0
  O  O10  1  0.506  0.661  0.378  1.0
  O  O11  1  0.494  0.339  0.622  1.0
  O  O12  1  0.683  0.696  0.097  1.0
  O  O13  1  0.317  0.304  0.903  1.0
  O  O14  1  0.485  0.957  0.248  1.0
  O  O15  1  0.515  0.043  0.752  1.0
  O  O16  1  0.073  0.115  0.177  1.0
  O  O17  1  0.927  0.885  0.823  1.0
  O  O18  1  0.815  0.308  0.036  1.0
  O  O19  1  0.185  0.692  0.964  1.0
  O  O20  1  0.098  0.460  0.274  1.0
  O  O21  1  0.902  0.540  0.726  1.0
  O  O22  1  0.816  0.291  0.372  1.0
  O  O23  1  0.184  0.709  0.628  1.0
[/CIF]
.
The material described by SrPO4 crystallizes in the triclinic P-1 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 8-coordinate geometry to one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), and two equivalent O(2) atoms. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to one O(2), one O(4), one O(5), one O(6), one O(7), one O(8), and two equivalent O(1) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. In the second P site, P(2) is bonded in a tetrahedral geometry to one O(5), one O(6), one O(7), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Sr(2) and one P(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Sr(2), two equivalent Sr(1), and one P(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Sr(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(2), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Sr(1), one Sr(2), and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Sr(1), one Sr(2), and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one Sr(1), one Sr(2), and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one Sr(1), one Sr(2), and one P(2) atom. is represented by the CIF file [CIF]
data_SrPO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.885
_cell_length_b   7.280
_cell_length_c   7.309
_cell_angle_alpha   101.302
_cell_angle_beta   96.748
_cell_angle_gamma   89.590
_symmetry_Int_Tables_number   1
_cell_volume   356.708
_cell_formula_units_Z   4
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  Sr0  1  0.447  0.305  0.245  1.0
  Sr  Sr1  1  0.553  0.695  0.755  1.0
  Sr  Sr2  1  0.858  0.184  0.689  1.0
  Sr  Sr3  1  0.142  0.816  0.311  1.0
  P  P4  1  0.623  0.796  0.290  1.0
  P  P5  1  0.377  0.204  0.710  1.0
  P  P6  1  0.950  0.295  0.217  1.0
  P  P7  1  0.050  0.705  0.783  1.0
  O  O8  1  0.805  0.875  0.425  1.0
  O  O9  1  0.195  0.125  0.575  1.0
  O  O10  1  0.506  0.661  0.378  1.0
  O  O11  1  0.494  0.339  0.622  1.0
  O  O12  1  0.683  0.696  0.097  1.0
  O  O13  1  0.317  0.304  0.903  1.0
  O  O14  1  0.485  0.957  0.248  1.0
  O  O15  1  0.515  0.043  0.752  1.0
  O  O16  1  0.073  0.115  0.177  1.0
  O  O17  1  0.927  0.885  0.823  1.0
  O  O18  1  0.815  0.308  0.036  1.0
  O  O19  1  0.185  0.692  0.964  1.0
  O  O20  1  0.098  0.460  0.274  1.0
  O  O21  1  0.902  0.540  0.726  1.0
  O  O22  1  0.816  0.291  0.372  1.0
  O  O23  1  0.184  0.709  0.628  1.0
[/CIF]
.