The structure described by MgO6HPO3 crystallizes in the trigonal R3 space group. The structure consists of three phosphonic acid molecules inside a MgO6 framework. In the MgO6 framework, Mg(1) is bonded in an octahedral geometry to three equivalent O(2) and three equivalent O(3) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Mg(1) and one O(3) atom. In the second O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Mg(1) and one O(2) atom. is represented by the CIF file [CIF]
data_MgPHO9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.400
_cell_length_b   5.400
_cell_length_c   5.400
_cell_angle_alpha   92.600
_cell_angle_beta   92.600
_cell_angle_gamma   92.600
_symmetry_Int_Tables_number   1
_cell_volume   156.954
_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
  Mg  Mg0  1  0.981  0.981  0.981  1.0
  P  P1  1  0.520  0.520  0.520  1.0
  H  H2  1  0.361  0.361  0.361  1.0
  O  O3  1  0.479  0.787  0.457  1.0
  O  O4  1  0.787  0.457  0.479  1.0
  O  O5  1  0.457  0.479  0.787  1.0
  O  O6  1  0.958  0.389  0.043  1.0
  O  O7  1  0.389  0.043  0.958  1.0
  O  O8  1  0.043  0.958  0.389  1.0
  O  O9  1  0.913  0.022  0.571  1.0
  O  O10  1  0.022  0.571  0.913  1.0
  O  O11  1  0.571  0.913  0.022  1.0
[/CIF]
.
The structure described by MgO6HPO3 crystallizes in the trigonal R3 space group. The structure consists of three phosphonic acid molecules inside a MgO6 framework. In the MgO6 framework, Mg(1) is bonded in an octahedral geometry to three equivalent O(2) and three equivalent O(3) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Mg(1) and one O(3) atom. In the second O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Mg(1) and one O(2) atom. is represented by the CIF file [CIF]
data_MgPHO9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.400
_cell_length_b   5.400
_cell_length_c   5.400
_cell_angle_alpha   92.600
_cell_angle_beta   92.600
_cell_angle_gamma   92.600
_symmetry_Int_Tables_number   1
_cell_volume   156.954
_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
  Mg  Mg0  1  0.981  0.981  0.981  1.0
  P  P1  1  0.520  0.520  0.520  1.0
  H  H2  1  0.361  0.361  0.361  1.0
  O  O3  1  0.479  0.787  0.457  1.0
  O  O4  1  0.787  0.457  0.479  1.0
  O  O5  1  0.457  0.479  0.787  1.0
  O  O6  1  0.958  0.389  0.043  1.0
  O  O7  1  0.389  0.043  0.958  1.0
  O  O8  1  0.043  0.958  0.389  1.0
  O  O9  1  0.913  0.022  0.571  1.0
  O  O10  1  0.022  0.571  0.913  1.0
  O  O11  1  0.571  0.913  0.022  1.0
[/CIF]
.