The material structure described by Na2Sr(P2O9)2 crystallizes in the orthorhombic Imm2 space group. Na(1) is bonded in a 5-coordinate geometry to one O(6), one O(7), two equivalent O(1), and two equivalent O(2) atoms. Sr(1) is bonded in a 8-coordinate geometry to two equivalent O(5), two equivalent O(6), and four equivalent O(2) atoms. P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form corner-sharing PO4 tetrahedra. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Na(1) and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Na(1), one Sr(1), and one P(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to two equivalent P(1) atoms. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to two equivalent P(1) atoms. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Sr(1), one O(5), and two equivalent O(7) atoms. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Na(1) and one Sr(1) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Na(1) and two equivalent O(5) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na2Sr(P2O9)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.956
_cell_length_b   8.956
_cell_length_c   8.956
_cell_angle_alpha   136.309
_cell_angle_beta   129.644
_cell_angle_gamma   68.832
_symmetry_Int_Tables_number   1
_cell_volume   375.299
_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
  Na  Na0  1  0.738  0.593  0.855  1.0
  Na  Na1  1  0.262  0.117  0.855  1.0
  Sr  Sr2  1  0.500  0.525  0.025  1.0
  P  P3  1  0.699  0.041  0.943  1.0
  P  P4  1  0.301  0.243  0.342  1.0
  P  P5  1  0.901  0.243  0.943  1.0
  P  P6  1  0.099  0.041  0.342  1.0
  O  O7  1  0.607  0.807  0.749  1.0
  O  O8  1  0.393  0.141  0.199  1.0
  O  O9  1  0.942  0.141  0.749  1.0
  O  O10  1  0.058  0.807  0.199  1.0
  O  O11  1  0.422  0.432  0.640  1.0
  O  O12  1  0.578  0.217  0.010  1.0
  O  O13  1  0.208  0.217  0.640  1.0
  O  O14  1  0.792  0.432  0.010  1.0
  O  O15  1  0.214  0.047  0.262  1.0
  O  O16  1  0.786  0.047  0.833  1.0
  O  O17  1  0.895  0.117  0.223  1.0
  O  O18  1  0.105  0.328  0.223  1.0
  O  O19  1  0.904  0.646  0.550  1.0
  O  O20  1  0.096  0.646  0.743  1.0
  O  O21  1  0.348  0.616  0.268  1.0
  O  O22  1  0.652  0.919  0.268  1.0
  O  O23  1  0.897  0.550  0.653  1.0
  O  O24  1  0.103  0.756  0.653  1.0
[/CIF]
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The material structure described by Na2Sr(P2O9)2 crystallizes in the orthorhombic Imm2 space group. Na(1) is bonded in a 5-coordinate geometry to one O(6), one O(7), two equivalent O(1), and two equivalent O(2) atoms. Sr(1) is bonded in a 8-coordinate geometry to two equivalent O(5), two equivalent O(6), and four equivalent O(2) atoms. P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form corner-sharing PO4 tetrahedra. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Na(1) and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Na(1), one Sr(1), and one P(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to two equivalent P(1) atoms. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to two equivalent P(1) atoms. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Sr(1), one O(5), and two equivalent O(7) atoms. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Na(1) and one Sr(1) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Na(1) and two equivalent O(5) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na2Sr(P2O9)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.956
_cell_length_b   8.956
_cell_length_c   8.956
_cell_angle_alpha   136.309
_cell_angle_beta   129.644
_cell_angle_gamma   68.832
_symmetry_Int_Tables_number   1
_cell_volume   375.299
_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
  Na  Na0  1  0.738  0.593  0.855  1.0
  Na  Na1  1  0.262  0.117  0.855  1.0
  Sr  Sr2  1  0.500  0.525  0.025  1.0
  P  P3  1  0.699  0.041  0.943  1.0
  P  P4  1  0.301  0.243  0.342  1.0
  P  P5  1  0.901  0.243  0.943  1.0
  P  P6  1  0.099  0.041  0.342  1.0
  O  O7  1  0.607  0.807  0.749  1.0
  O  O8  1  0.393  0.141  0.199  1.0
  O  O9  1  0.942  0.141  0.749  1.0
  O  O10  1  0.058  0.807  0.199  1.0
  O  O11  1  0.422  0.432  0.640  1.0
  O  O12  1  0.578  0.217  0.010  1.0
  O  O13  1  0.208  0.217  0.640  1.0
  O  O14  1  0.792  0.432  0.010  1.0
  O  O15  1  0.214  0.047  0.262  1.0
  O  O16  1  0.786  0.047  0.833  1.0
  O  O17  1  0.895  0.117  0.223  1.0
  O  O18  1  0.105  0.328  0.223  1.0
  O  O19  1  0.904  0.646  0.550  1.0
  O  O20  1  0.096  0.646  0.743  1.0
  O  O21  1  0.348  0.616  0.268  1.0
  O  O22  1  0.652  0.919  0.268  1.0
  O  O23  1  0.897  0.550  0.653  1.0
  O  O24  1  0.103  0.756  0.653  1.0
[/CIF]
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