The compound described by Sr(PO3)2 crystallizes in the monoclinic P2_1/c space group. Sr(1) is bonded in a 8-coordinate geometry to one O(1), one O(4), two equivalent O(2), two equivalent O(3), and two equivalent O(6) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(3), one O(5), and one O(6) atom to form corner-sharing PO4 tetrahedra. In the second P site, P(2) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form corner-sharing PO4 tetrahedra. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Sr(1), one P(1), and one P(2) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Sr(1) and one P(2) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent Sr(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted linear geometry to one Sr(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to two equivalent Sr(1) and one P(1) atom. is represented by the CIF card [CIF]
data_Sr(PO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.931
_cell_length_b   4.495
_cell_length_c   10.389
_cell_angle_alpha   88.387
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   510.224
_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  0.808  0.031  0.986  1.0
  Sr  Sr1  1  0.192  0.969  0.014  1.0
  Sr  Sr2  1  0.692  0.031  0.486  1.0
  Sr  Sr3  1  0.308  0.969  0.514  1.0
  P  P4  1  0.349  0.436  0.794  1.0
  P  P5  1  0.651  0.564  0.206  1.0
  P  P6  1  0.987  0.930  0.284  1.0
  P  P7  1  0.013  0.070  0.716  1.0
  P  P8  1  0.849  0.564  0.706  1.0
  P  P9  1  0.487  0.070  0.216  1.0
  P  P10  1  0.513  0.930  0.784  1.0
  P  P11  1  0.151  0.436  0.294  1.0
  O  O12  1  0.891  0.898  0.669  1.0
  O  O13  1  0.485  0.041  0.360  1.0
  O  O14  1  0.515  0.959  0.640  1.0
  O  O15  1  0.250  0.502  0.386  1.0
  O  O16  1  0.015  0.041  0.860  1.0
  O  O17  1  0.378  0.982  0.143  1.0
  O  O18  1  0.750  0.498  0.114  1.0
  O  O19  1  0.027  0.606  0.331  1.0
  O  O20  1  0.109  0.102  0.331  1.0
  O  O21  1  0.750  0.498  0.614  1.0
  O  O22  1  0.328  0.469  0.653  1.0
  O  O23  1  0.985  0.959  0.140  1.0
  O  O24  1  0.828  0.531  0.847  1.0
  O  O25  1  0.622  0.018  0.857  1.0
  O  O26  1  0.609  0.898  0.169  1.0
  O  O27  1  0.473  0.606  0.831  1.0
  O  O28  1  0.878  0.018  0.357  1.0
  O  O29  1  0.672  0.531  0.347  1.0
  O  O30  1  0.391  0.102  0.831  1.0
  O  O31  1  0.973  0.394  0.669  1.0
  O  O32  1  0.250  0.502  0.886  1.0
  O  O33  1  0.527  0.394  0.169  1.0
  O  O34  1  0.122  0.982  0.643  1.0
  O  O35  1  0.172  0.469  0.153  1.0
[/CIF]
.
The compound described by Sr(PO3)2 crystallizes in the monoclinic P2_1/c space group. Sr(1) is bonded in a 8-coordinate geometry to one O(1), one O(4), two equivalent O(2), two equivalent O(3), and two equivalent O(6) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(3), one O(5), and one O(6) atom to form corner-sharing PO4 tetrahedra. In the second P site, P(2) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form corner-sharing PO4 tetrahedra. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Sr(1), one P(1), and one P(2) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Sr(1) and one P(2) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent Sr(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted linear geometry to one Sr(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to two equivalent Sr(1) and one P(1) atom. is represented by the CIF card [CIF]
data_Sr(PO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.931
_cell_length_b   4.495
_cell_length_c   10.389
_cell_angle_alpha   88.387
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   510.224
_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  0.808  0.031  0.986  1.0
  Sr  Sr1  1  0.192  0.969  0.014  1.0
  Sr  Sr2  1  0.692  0.031  0.486  1.0
  Sr  Sr3  1  0.308  0.969  0.514  1.0
  P  P4  1  0.349  0.436  0.794  1.0
  P  P5  1  0.651  0.564  0.206  1.0
  P  P6  1  0.987  0.930  0.284  1.0
  P  P7  1  0.013  0.070  0.716  1.0
  P  P8  1  0.849  0.564  0.706  1.0
  P  P9  1  0.487  0.070  0.216  1.0
  P  P10  1  0.513  0.930  0.784  1.0
  P  P11  1  0.151  0.436  0.294  1.0
  O  O12  1  0.891  0.898  0.669  1.0
  O  O13  1  0.485  0.041  0.360  1.0
  O  O14  1  0.515  0.959  0.640  1.0
  O  O15  1  0.250  0.502  0.386  1.0
  O  O16  1  0.015  0.041  0.860  1.0
  O  O17  1  0.378  0.982  0.143  1.0
  O  O18  1  0.750  0.498  0.114  1.0
  O  O19  1  0.027  0.606  0.331  1.0
  O  O20  1  0.109  0.102  0.331  1.0
  O  O21  1  0.750  0.498  0.614  1.0
  O  O22  1  0.328  0.469  0.653  1.0
  O  O23  1  0.985  0.959  0.140  1.0
  O  O24  1  0.828  0.531  0.847  1.0
  O  O25  1  0.622  0.018  0.857  1.0
  O  O26  1  0.609  0.898  0.169  1.0
  O  O27  1  0.473  0.606  0.831  1.0
  O  O28  1  0.878  0.018  0.357  1.0
  O  O29  1  0.672  0.531  0.347  1.0
  O  O30  1  0.391  0.102  0.831  1.0
  O  O31  1  0.973  0.394  0.669  1.0
  O  O32  1  0.250  0.502  0.886  1.0
  O  O33  1  0.527  0.394  0.169  1.0
  O  O34  1  0.122  0.982  0.643  1.0
  O  O35  1  0.172  0.469  0.153  1.0
[/CIF]
.