The structure described by MnNi(PO4)2 crystallizes in the monoclinic P2_1/m space group. Mn(1) is bonded to one O(2), one O(4), two equivalent O(5), and two equivalent O(6) atoms to form MnO6 octahedra that share corners with four equivalent Ni(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra, and  an edgeedge with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 49-50°. Ni(1) is bonded to one O(1), one O(3), two equivalent O(5), and two equivalent O(6) atoms to form NiO6 octahedra that share corners with four equivalent Mn(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with three equivalent P(1)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 49-50°. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), and two equivalent O(5) atoms to form PO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra, corners with three equivalent Ni(1)O6 octahedra, and  an edgeedge with one Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-60°. In the second P site, P(2) is bonded to one O(3), one O(4), and two equivalent O(6) atoms to form PO4 tetrahedra that share  a cornercorner with one Ni(1)O6 octahedra, corners with three equivalent Mn(1)O6 octahedra, and  an edgeedge with one Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-55°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Ni(1) and one P(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Mn(1) and one P(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Ni(1) and one P(2) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Mn(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Mn(1), one Ni(1), and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Mn(1), one Ni(1), and one P(2) atom. is represented by the CIF card [CIF]
data_MnNi(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.768
_cell_length_b   9.867
_cell_length_c   5.765
_cell_angle_alpha   89.997
_cell_angle_beta   89.998
_cell_angle_gamma   89.383
_symmetry_Int_Tables_number   1
_cell_volume   271.189
_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
  Mn  Mn0  1  0.038  0.723  0.750  1.0
  Mn  Mn1  1  0.962  0.277  0.250  1.0
  Ni  Ni2  1  0.544  0.767  0.250  1.0
  Ni  Ni3  1  0.457  0.233  0.750  1.0
  P  P4  1  0.401  0.097  0.250  1.0
  P  P5  1  0.599  0.903  0.750  1.0
  P  P6  1  0.914  0.413  0.750  1.0
  P  P7  1  0.086  0.587  0.250  1.0
  O  O8  1  0.650  0.053  0.750  1.0
  O  O9  1  0.350  0.947  0.250  1.0
  O  O10  1  0.717  0.125  0.250  1.0
  O  O11  1  0.282  0.875  0.750  1.0
  O  O12  1  0.228  0.401  0.750  1.0
  O  O13  1  0.772  0.599  0.250  1.0
  O  O14  1  0.183  0.436  0.250  1.0
  O  O15  1  0.817  0.564  0.750  1.0
  O  O16  1  0.239  0.174  0.047  1.0
  O  O17  1  0.239  0.174  0.453  1.0
  O  O18  1  0.761  0.826  0.547  1.0
  O  O19  1  0.761  0.826  0.953  1.0
  O  O20  1  0.767  0.337  0.960  1.0
  O  O21  1  0.767  0.337  0.540  1.0
  O  O22  1  0.233  0.663  0.040  1.0
  O  O23  1  0.233  0.663  0.460  1.0
[/CIF]
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The structure described by MnNi(PO4)2 crystallizes in the monoclinic P2_1/m space group. Mn(1) is bonded to one O(2), one O(4), two equivalent O(5), and two equivalent O(6) atoms to form MnO6 octahedra that share corners with four equivalent Ni(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra, and  an edgeedge with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 49-50°. Ni(1) is bonded to one O(1), one O(3), two equivalent O(5), and two equivalent O(6) atoms to form NiO6 octahedra that share corners with four equivalent Mn(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with three equivalent P(1)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 49-50°. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), and two equivalent O(5) atoms to form PO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra, corners with three equivalent Ni(1)O6 octahedra, and  an edgeedge with one Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-60°. In the second P site, P(2) is bonded to one O(3), one O(4), and two equivalent O(6) atoms to form PO4 tetrahedra that share  a cornercorner with one Ni(1)O6 octahedra, corners with three equivalent Mn(1)O6 octahedra, and  an edgeedge with one Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-55°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Ni(1) and one P(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Mn(1) and one P(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Ni(1) and one P(2) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Mn(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Mn(1), one Ni(1), and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Mn(1), one Ni(1), and one P(2) atom. is represented by the CIF card [CIF]
data_MnNi(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.768
_cell_length_b   9.867
_cell_length_c   5.765
_cell_angle_alpha   89.997
_cell_angle_beta   89.998
_cell_angle_gamma   89.383
_symmetry_Int_Tables_number   1
_cell_volume   271.189
_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
  Mn  Mn0  1  0.038  0.723  0.750  1.0
  Mn  Mn1  1  0.962  0.277  0.250  1.0
  Ni  Ni2  1  0.544  0.767  0.250  1.0
  Ni  Ni3  1  0.457  0.233  0.750  1.0
  P  P4  1  0.401  0.097  0.250  1.0
  P  P5  1  0.599  0.903  0.750  1.0
  P  P6  1  0.914  0.413  0.750  1.0
  P  P7  1  0.086  0.587  0.250  1.0
  O  O8  1  0.650  0.053  0.750  1.0
  O  O9  1  0.350  0.947  0.250  1.0
  O  O10  1  0.717  0.125  0.250  1.0
  O  O11  1  0.282  0.875  0.750  1.0
  O  O12  1  0.228  0.401  0.750  1.0
  O  O13  1  0.772  0.599  0.250  1.0
  O  O14  1  0.183  0.436  0.250  1.0
  O  O15  1  0.817  0.564  0.750  1.0
  O  O16  1  0.239  0.174  0.047  1.0
  O  O17  1  0.239  0.174  0.453  1.0
  O  O18  1  0.761  0.826  0.547  1.0
  O  O19  1  0.761  0.826  0.953  1.0
  O  O20  1  0.767  0.337  0.960  1.0
  O  O21  1  0.767  0.337  0.540  1.0
  O  O22  1  0.233  0.663  0.040  1.0
  O  O23  1  0.233  0.663  0.460  1.0
[/CIF]
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