The crystal structure described by Sn(HPO4)2 crystallizes in the monoclinic C2/c space group. Sn(1) is bonded to two equivalent O(2) and four equivalent O(3) atoms to form distorted SnO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra and edges with two equivalent Sn(1)O6 octahedra. P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share corners with three equivalent Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-57°. H(1) is bonded in a linear geometry to one O(1) and one O(4) atom. There are four inequivalent O sites. In the first O site, O(4) is bonded in a bent 120 degrees geometry to one P(1) and one H(1) atom. In the second O site, O(1) is bonded in a bent 120 degrees geometry to one P(1) and one H(1) atom. In the third O site, O(2) is bonded in a bent 120 degrees geometry to one Sn(1) and one P(1) atom. In the fourth O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Sn(1) and one P(1) atom. is represented by the CIF file [CIF]
data_SnP2(HO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.967
_cell_length_b   8.139
_cell_length_c   8.924
_cell_angle_alpha   117.131
_cell_angle_beta   98.019
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   317.131
_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  0.250  0.139  0.000  1.0
  Sn  Sn1  1  0.750  0.861  0.000  1.0
  P  P2  1  0.198  0.654  0.742  1.0
  P  P3  1  0.302  0.912  0.258  1.0
  P  P4  1  0.802  0.346  0.258  1.0
  P  P5  1  0.698  0.088  0.742  1.0
  H  H6  1  0.158  0.607  0.471  1.0
  H  H7  1  0.342  0.136  0.529  1.0
  H  H8  1  0.842  0.393  0.529  1.0
  H  H9  1  0.658  0.864  0.471  1.0
  O  O10  1  0.994  0.500  0.703  1.0
  O  O11  1  0.506  0.796  0.297  1.0
  O  O12  1  0.006  0.500  0.297  1.0
  O  O13  1  0.494  0.204  0.703  1.0
  O  O14  1  0.467  0.651  0.856  1.0
  O  O15  1  0.033  0.795  0.144  1.0
  O  O16  1  0.533  0.349  0.144  1.0
  O  O17  1  0.967  0.205  0.856  1.0
  O  O18  1  0.061  0.848  0.857  1.0
  O  O19  1  0.439  0.991  0.143  1.0
  O  O20  1  0.939  0.152  0.143  1.0
  O  O21  1  0.561  0.009  0.857  1.0
  O  O22  1  0.279  0.675  0.591  1.0
  O  O23  1  0.221  0.084  0.409  1.0
  O  O24  1  0.721  0.325  0.409  1.0
  O  O25  1  0.779  0.916  0.591  1.0
[/CIF]
.
The crystal structure described by Sn(HPO4)2 crystallizes in the monoclinic C2/c space group. Sn(1) is bonded to two equivalent O(2) and four equivalent O(3) atoms to form distorted SnO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra and edges with two equivalent Sn(1)O6 octahedra. P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share corners with three equivalent Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-57°. H(1) is bonded in a linear geometry to one O(1) and one O(4) atom. There are four inequivalent O sites. In the first O site, O(4) is bonded in a bent 120 degrees geometry to one P(1) and one H(1) atom. In the second O site, O(1) is bonded in a bent 120 degrees geometry to one P(1) and one H(1) atom. In the third O site, O(2) is bonded in a bent 120 degrees geometry to one Sn(1) and one P(1) atom. In the fourth O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Sn(1) and one P(1) atom. is represented by the CIF file [CIF]
data_SnP2(HO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.967
_cell_length_b   8.139
_cell_length_c   8.924
_cell_angle_alpha   117.131
_cell_angle_beta   98.019
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   317.131
_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  0.250  0.139  0.000  1.0
  Sn  Sn1  1  0.750  0.861  0.000  1.0
  P  P2  1  0.198  0.654  0.742  1.0
  P  P3  1  0.302  0.912  0.258  1.0
  P  P4  1  0.802  0.346  0.258  1.0
  P  P5  1  0.698  0.088  0.742  1.0
  H  H6  1  0.158  0.607  0.471  1.0
  H  H7  1  0.342  0.136  0.529  1.0
  H  H8  1  0.842  0.393  0.529  1.0
  H  H9  1  0.658  0.864  0.471  1.0
  O  O10  1  0.994  0.500  0.703  1.0
  O  O11  1  0.506  0.796  0.297  1.0
  O  O12  1  0.006  0.500  0.297  1.0
  O  O13  1  0.494  0.204  0.703  1.0
  O  O14  1  0.467  0.651  0.856  1.0
  O  O15  1  0.033  0.795  0.144  1.0
  O  O16  1  0.533  0.349  0.144  1.0
  O  O17  1  0.967  0.205  0.856  1.0
  O  O18  1  0.061  0.848  0.857  1.0
  O  O19  1  0.439  0.991  0.143  1.0
  O  O20  1  0.939  0.152  0.143  1.0
  O  O21  1  0.561  0.009  0.857  1.0
  O  O22  1  0.279  0.675  0.591  1.0
  O  O23  1  0.221  0.084  0.409  1.0
  O  O24  1  0.721  0.325  0.409  1.0
  O  O25  1  0.779  0.916  0.591  1.0
[/CIF]
.