The material described by SrSn(PO4)2 crystallizes in the triclinic P-1 space group. Sr(1) is bonded in a 3-coordinate geometry to one O(2), one O(3), one O(6), and two equivalent O(1) atoms. Sn(1) is bonded in a 4-coordinate geometry to one O(4), one O(5), one O(7), and one O(8) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(2), one O(3), and one O(7) atom. In the second P site, P(2) is bonded in a 4-coordinate geometry to one O(4), one O(5), one O(6), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one P(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Sr(1) and one P(1) atom. In the third O site, O(3) is bonded in a distorted water-like geometry to one Sr(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Sn(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one Sn(1) and one P(2) atom. In the sixth O site, O(6) is bonded in a water-like geometry to one Sr(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Sn(1) and one P(1) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one Sn(1) and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrSn(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.693
_cell_length_b   7.049
_cell_length_c   9.287
_cell_angle_alpha   110.704
_cell_angle_beta   100.560
_cell_angle_gamma   98.082
_symmetry_Int_Tables_number   1
_cell_volume   334.076
_cell_formula_units_Z   2
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  0.244  0.733  0.031  1.0
  Sr  Sr1  1  0.756  0.267  0.969  1.0
  Sn  Sn2  1  0.672  0.275  0.549  1.0
  Sn  Sn3  1  0.328  0.725  0.451  1.0
  P  P4  1  0.393  0.203  0.228  1.0
  P  P5  1  0.607  0.797  0.772  1.0
  P  P6  1  0.839  0.732  0.302  1.0
  P  P7  1  0.161  0.268  0.698  1.0
  O  O8  1  0.826  0.671  0.891  1.0
  O  O9  1  0.634  0.288  0.187  1.0
  O  O10  1  0.653  0.034  0.757  1.0
  O  O11  1  0.956  0.400  0.697  1.0
  O  O12  1  0.366  0.712  0.813  1.0
  O  O13  1  0.013  0.172  0.574  1.0
  O  O14  1  0.987  0.828  0.426  1.0
  O  O15  1  0.284  0.127  0.864  1.0
  O  O16  1  0.347  0.966  0.243  1.0
  O  O17  1  0.716  0.873  0.136  1.0
  O  O18  1  0.174  0.329  0.109  1.0
  O  O19  1  0.398  0.192  0.400  1.0
  O  O20  1  0.602  0.808  0.600  1.0
  O  O21  1  0.621  0.586  0.377  1.0
  O  O22  1  0.044  0.600  0.303  1.0
  O  O23  1  0.379  0.414  0.623  1.0
[/CIF]
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The material described by SrSn(PO4)2 crystallizes in the triclinic P-1 space group. Sr(1) is bonded in a 3-coordinate geometry to one O(2), one O(3), one O(6), and two equivalent O(1) atoms. Sn(1) is bonded in a 4-coordinate geometry to one O(4), one O(5), one O(7), and one O(8) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(2), one O(3), and one O(7) atom. In the second P site, P(2) is bonded in a 4-coordinate geometry to one O(4), one O(5), one O(6), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one P(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Sr(1) and one P(1) atom. In the third O site, O(3) is bonded in a distorted water-like geometry to one Sr(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Sn(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one Sn(1) and one P(2) atom. In the sixth O site, O(6) is bonded in a water-like geometry to one Sr(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Sn(1) and one P(1) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one Sn(1) and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrSn(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.693
_cell_length_b   7.049
_cell_length_c   9.287
_cell_angle_alpha   110.704
_cell_angle_beta   100.560
_cell_angle_gamma   98.082
_symmetry_Int_Tables_number   1
_cell_volume   334.076
_cell_formula_units_Z   2
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  0.244  0.733  0.031  1.0
  Sr  Sr1  1  0.756  0.267  0.969  1.0
  Sn  Sn2  1  0.672  0.275  0.549  1.0
  Sn  Sn3  1  0.328  0.725  0.451  1.0
  P  P4  1  0.393  0.203  0.228  1.0
  P  P5  1  0.607  0.797  0.772  1.0
  P  P6  1  0.839  0.732  0.302  1.0
  P  P7  1  0.161  0.268  0.698  1.0
  O  O8  1  0.826  0.671  0.891  1.0
  O  O9  1  0.634  0.288  0.187  1.0
  O  O10  1  0.653  0.034  0.757  1.0
  O  O11  1  0.956  0.400  0.697  1.0
  O  O12  1  0.366  0.712  0.813  1.0
  O  O13  1  0.013  0.172  0.574  1.0
  O  O14  1  0.987  0.828  0.426  1.0
  O  O15  1  0.284  0.127  0.864  1.0
  O  O16  1  0.347  0.966  0.243  1.0
  O  O17  1  0.716  0.873  0.136  1.0
  O  O18  1  0.174  0.329  0.109  1.0
  O  O19  1  0.398  0.192  0.400  1.0
  O  O20  1  0.602  0.808  0.600  1.0
  O  O21  1  0.621  0.586  0.377  1.0
  O  O22  1  0.044  0.600  0.303  1.0
  O  O23  1  0.379  0.414  0.623  1.0
[/CIF]
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