The crystal structure described by Sn(PO3)3 crystallizes in the trigonal P312 space group. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to six equivalent O(2) atoms to form SnO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra. In the second Sn site, Sn(2) is bonded to six equivalent O(3) atoms to form SnO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra. P(1) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form PO4 tetrahedra that share  a cornercorner with one Sn(1)O6 octahedra,  a cornercorner with one Sn(2)O6 octahedra, and corners with two equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 36-40°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to two equivalent P(1) atoms. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Sn(1) and one P(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Sn(2) and one P(1) atom. is represented by the CIF file [CIF]
data_Sn(PO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.830
_cell_length_b   6.830
_cell_length_c   10.415
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   420.784
_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
  Sn  Sn0  1  1.000  0.000  0.500  1.0
  Sn  Sn1  1  0.000  1.000  0.000  1.0
  P  P2  1  0.726  0.122  0.778  1.0
  P  P3  1  0.878  0.274  0.222  1.0
  P  P4  1  0.726  0.604  0.222  1.0
  P  P5  1  0.878  0.604  0.778  1.0
  P  P6  1  0.396  0.274  0.778  1.0
  P  P7  1  0.396  0.122  0.222  1.0
  O  O8  1  0.897  0.513  0.197  1.0
  O  O9  1  0.897  0.385  0.803  1.0
  O  O10  1  0.487  0.103  0.803  1.0
  O  O11  1  0.615  0.103  0.197  1.0
  O  O12  1  0.746  0.052  0.648  1.0
  O  O13  1  0.754  0.998  0.890  1.0
  O  O14  1  0.487  0.385  0.197  1.0
  O  O15  1  0.746  0.694  0.352  1.0
  O  O16  1  0.754  0.757  0.110  1.0
  O  O17  1  0.615  0.513  0.803  1.0
  O  O18  1  0.948  0.254  0.352  1.0
  O  O19  1  0.002  0.246  0.110  1.0
  O  O20  1  0.243  0.246  0.890  1.0
  O  O21  1  0.306  0.254  0.648  1.0
  O  O22  1  0.002  0.757  0.890  1.0
  O  O23  1  0.948  0.694  0.648  1.0
  O  O24  1  0.243  0.998  0.110  1.0
  O  O25  1  0.306  0.052  0.352  1.0
[/CIF]
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The crystal structure described by Sn(PO3)3 crystallizes in the trigonal P312 space group. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to six equivalent O(2) atoms to form SnO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra. In the second Sn site, Sn(2) is bonded to six equivalent O(3) atoms to form SnO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra. P(1) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form PO4 tetrahedra that share  a cornercorner with one Sn(1)O6 octahedra,  a cornercorner with one Sn(2)O6 octahedra, and corners with two equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 36-40°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to two equivalent P(1) atoms. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Sn(1) and one P(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Sn(2) and one P(1) atom. is represented by the CIF file [CIF]
data_Sn(PO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.830
_cell_length_b   6.830
_cell_length_c   10.415
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   420.784
_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
  Sn  Sn0  1  1.000  0.000  0.500  1.0
  Sn  Sn1  1  0.000  1.000  0.000  1.0
  P  P2  1  0.726  0.122  0.778  1.0
  P  P3  1  0.878  0.274  0.222  1.0
  P  P4  1  0.726  0.604  0.222  1.0
  P  P5  1  0.878  0.604  0.778  1.0
  P  P6  1  0.396  0.274  0.778  1.0
  P  P7  1  0.396  0.122  0.222  1.0
  O  O8  1  0.897  0.513  0.197  1.0
  O  O9  1  0.897  0.385  0.803  1.0
  O  O10  1  0.487  0.103  0.803  1.0
  O  O11  1  0.615  0.103  0.197  1.0
  O  O12  1  0.746  0.052  0.648  1.0
  O  O13  1  0.754  0.998  0.890  1.0
  O  O14  1  0.487  0.385  0.197  1.0
  O  O15  1  0.746  0.694  0.352  1.0
  O  O16  1  0.754  0.757  0.110  1.0
  O  O17  1  0.615  0.513  0.803  1.0
  O  O18  1  0.948  0.254  0.352  1.0
  O  O19  1  0.002  0.246  0.110  1.0
  O  O20  1  0.243  0.246  0.890  1.0
  O  O21  1  0.306  0.254  0.648  1.0
  O  O22  1  0.002  0.757  0.890  1.0
  O  O23  1  0.948  0.694  0.648  1.0
  O  O24  1  0.243  0.998  0.110  1.0
  O  O25  1  0.306  0.052  0.352  1.0
[/CIF]
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