The crystal structure described by MnPO4 crystallizes in the trigonal R-3c space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 6-coordinate geometry to six equivalent O(2) atoms. In the second Mn site, Mn(2) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form MnO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra. P(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form PO4 tetrahedra that share corners with four equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-46°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Mn(2) and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(2), and one P(1) atom. is represented by the CIF file [CIF]
data_MnPO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.626
_cell_length_b   8.626
_cell_length_c   8.626
_cell_angle_alpha   59.663
_cell_angle_beta   59.663
_cell_angle_gamma   59.663
_symmetry_Int_Tables_number   1
_cell_volume   450.379
_cell_formula_units_Z   6
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
  Mn  Mn0  1  0.000  0.000  0.000  1.0
  Mn  Mn1  1  0.356  0.356  0.356  1.0
  Mn  Mn2  1  0.856  0.856  0.856  1.0
  Mn  Mn3  1  0.500  0.500  0.500  1.0
  Mn  Mn4  1  0.144  0.144  0.144  1.0
  Mn  Mn5  1  0.644  0.644  0.644  1.0
  P  P6  1  0.040  0.460  0.750  1.0
  P  P7  1  0.460  0.750  0.040  1.0
  P  P8  1  0.750  0.040  0.460  1.0
  P  P9  1  0.250  0.960  0.540  1.0
  P  P10  1  0.540  0.250  0.960  1.0
  P  P11  1  0.960  0.540  0.250  1.0
  O  O12  1  0.488  0.699  0.880  1.0
  O  O13  1  0.699  0.880  0.488  1.0
  O  O14  1  0.880  0.488  0.699  1.0
  O  O15  1  0.056  0.264  0.916  1.0
  O  O16  1  0.012  0.620  0.801  1.0
  O  O17  1  0.236  0.444  0.584  1.0
  O  O18  1  0.264  0.916  0.056  1.0
  O  O19  1  0.444  0.584  0.236  1.0
  O  O20  1  0.199  0.988  0.380  1.0
  O  O21  1  0.584  0.236  0.444  1.0
  O  O22  1  0.084  0.944  0.736  1.0
  O  O23  1  0.380  0.199  0.988  1.0
  O  O24  1  0.620  0.801  0.012  1.0
  O  O25  1  0.916  0.056  0.264  1.0
  O  O26  1  0.416  0.764  0.556  1.0
  O  O27  1  0.801  0.012  0.620  1.0
  O  O28  1  0.556  0.416  0.764  1.0
  O  O29  1  0.736  0.084  0.944  1.0
  O  O30  1  0.764  0.556  0.416  1.0
  O  O31  1  0.988  0.380  0.199  1.0
  O  O32  1  0.944  0.736  0.084  1.0
  O  O33  1  0.120  0.512  0.301  1.0
  O  O34  1  0.301  0.120  0.512  1.0
  O  O35  1  0.512  0.301  0.120  1.0
[/CIF]
.
The crystal structure described by MnPO4 crystallizes in the trigonal R-3c space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 6-coordinate geometry to six equivalent O(2) atoms. In the second Mn site, Mn(2) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form MnO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra. P(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form PO4 tetrahedra that share corners with four equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-46°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Mn(2) and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(2), and one P(1) atom. is represented by the CIF file [CIF]
data_MnPO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.626
_cell_length_b   8.626
_cell_length_c   8.626
_cell_angle_alpha   59.663
_cell_angle_beta   59.663
_cell_angle_gamma   59.663
_symmetry_Int_Tables_number   1
_cell_volume   450.379
_cell_formula_units_Z   6
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
  Mn  Mn0  1  0.000  0.000  0.000  1.0
  Mn  Mn1  1  0.356  0.356  0.356  1.0
  Mn  Mn2  1  0.856  0.856  0.856  1.0
  Mn  Mn3  1  0.500  0.500  0.500  1.0
  Mn  Mn4  1  0.144  0.144  0.144  1.0
  Mn  Mn5  1  0.644  0.644  0.644  1.0
  P  P6  1  0.040  0.460  0.750  1.0
  P  P7  1  0.460  0.750  0.040  1.0
  P  P8  1  0.750  0.040  0.460  1.0
  P  P9  1  0.250  0.960  0.540  1.0
  P  P10  1  0.540  0.250  0.960  1.0
  P  P11  1  0.960  0.540  0.250  1.0
  O  O12  1  0.488  0.699  0.880  1.0
  O  O13  1  0.699  0.880  0.488  1.0
  O  O14  1  0.880  0.488  0.699  1.0
  O  O15  1  0.056  0.264  0.916  1.0
  O  O16  1  0.012  0.620  0.801  1.0
  O  O17  1  0.236  0.444  0.584  1.0
  O  O18  1  0.264  0.916  0.056  1.0
  O  O19  1  0.444  0.584  0.236  1.0
  O  O20  1  0.199  0.988  0.380  1.0
  O  O21  1  0.584  0.236  0.444  1.0
  O  O22  1  0.084  0.944  0.736  1.0
  O  O23  1  0.380  0.199  0.988  1.0
  O  O24  1  0.620  0.801  0.012  1.0
  O  O25  1  0.916  0.056  0.264  1.0
  O  O26  1  0.416  0.764  0.556  1.0
  O  O27  1  0.801  0.012  0.620  1.0
  O  O28  1  0.556  0.416  0.764  1.0
  O  O29  1  0.736  0.084  0.944  1.0
  O  O30  1  0.764  0.556  0.416  1.0
  O  O31  1  0.988  0.380  0.199  1.0
  O  O32  1  0.944  0.736  0.084  1.0
  O  O33  1  0.120  0.512  0.301  1.0
  O  O34  1  0.301  0.120  0.512  1.0
  O  O35  1  0.512  0.301  0.120  1.0
[/CIF]
.