The structure described by Nb2Mn3ZnO9 is Ilmenite-derived structured and crystallizes in the trigonal P3c1 space group. There are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded to three equivalent O(2) and three equivalent O(3) atoms to form distorted NbO6 octahedra that share corners with three equivalent Mn(2)O6 octahedra, corners with three equivalent Mn(3)O6 octahedra, and  a faceface with one Nb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-58°. In the second Nb site, Nb(2) is bonded to three equivalent O(1) and three equivalent O(3) atoms to form distorted NbO6 octahedra that share corners with three equivalent Mn(2)O6 octahedra, corners with three equivalent Mn(3)O6 octahedra, and  a faceface with one Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-58°. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 6-coordinate geometry to three equivalent O(1) and three equivalent O(3) 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 three equivalent Nb(1)O6 octahedra, corners with three equivalent Nb(2)O6 octahedra, and edges with three equivalent Mn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-58°. In the third Mn site, Mn(3) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form MnO6 octahedra that share corners with three equivalent Nb(1)O6 octahedra, corners with three equivalent Nb(2)O6 octahedra, and edges with three equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-58°. Zn(1) is bonded in a 6-coordinate geometry to three equivalent O(2) and three equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Nb(2), one Mn(1), one Mn(2), and one Mn(3) atom to form distorted OMn3Nb trigonal pyramids that share corners with four equivalent O(2)Mn2NbZn trigonal pyramids, corners with four equivalent O(1)Mn3Nb trigonal pyramids, corners with four equivalent O(3)MnNb2Zn trigonal pyramids,  an edgeedge with one O(2)Mn2NbZn trigonal pyramid,  an edgeedge with one O(3)MnNb2Zn trigonal pyramid, and edges with two equivalent O(1)Mn3Nb trigonal pyramids. In the second O site, O(2) is bonded to one Nb(1), one Mn(2), one Mn(3), and one Zn(1) atom to form distorted OMn2NbZn trigonal pyramids that share corners with four equivalent O(2)Mn2NbZn trigonal pyramids, corners with four equivalent O(1)Mn3Nb trigonal pyramids, corners with four equivalent O(3)MnNb2Zn trigonal pyramids,  an edgeedge with one O(1)Mn3Nb trigonal pyramid,  an edgeedge with one O(3)MnNb2Zn trigonal pyramid, and edges with two equivalent O(2)Mn2NbZn trigonal pyramids. In the third O site, O(3) is bonded to one Nb(1), one Nb(2), one Mn(1), and one Zn(1) atom to form distorted OMnNb2Zn trigonal pyramids that share corners with four equivalent O(2)Mn2NbZn trigonal pyramids, corners with four equivalent O(1)Mn3Nb trigonal pyramids, corners with four equivalent O(3)MnNb2Zn trigonal pyramids,  an edgeedge with one O(2)Mn2NbZn trigonal pyramid,  an edgeedge with one O(1)Mn3Nb trigonal pyramid, and edges with two equivalent O(3)MnNb2Zn trigonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mn3Nb2ZnO9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.288
_cell_length_b   5.288
_cell_length_c   14.320
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   346.802
_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  0.667  0.333  0.697  1.0
  Mn  Mn1  1  0.667  0.333  0.981  1.0
  Mn  Mn2  1  0.667  0.333  0.481  1.0
  Mn  Mn3  1  0.333  0.667  0.515  1.0
  Mn  Mn4  1  0.333  0.667  0.015  1.0
  Mn  Mn5  1  0.667  0.333  0.197  1.0
  Nb  Nb6  1  0.000  0.000  0.858  1.0
  Nb  Nb7  1  0.000  0.000  0.141  1.0
  Nb  Nb8  1  0.000  0.000  0.641  1.0
  Nb  Nb9  1  0.000  0.000  0.358  1.0
  Zn  Zn10  1  0.333  0.667  0.797  1.0
  Zn  Zn11  1  0.333  0.667  0.297  1.0
  O  O12  1  0.342  0.314  0.084  1.0
  O  O13  1  0.658  0.685  0.914  1.0
  O  O14  1  0.009  0.289  0.249  1.0
  O  O15  1  0.280  0.991  0.249  1.0
  O  O16  1  0.972  0.658  0.084  1.0
  O  O17  1  0.686  0.658  0.584  1.0
  O  O18  1  0.711  0.991  0.749  1.0
  O  O19  1  0.027  0.342  0.914  1.0
  O  O20  1  0.027  0.685  0.414  1.0
  O  O21  1  0.342  0.028  0.584  1.0
  O  O22  1  0.280  0.289  0.749  1.0
  O  O23  1  0.972  0.314  0.584  1.0
  O  O24  1  0.711  0.720  0.249  1.0
  O  O25  1  0.315  0.973  0.914  1.0
  O  O26  1  0.686  0.028  0.084  1.0
  O  O27  1  0.658  0.973  0.414  1.0
  O  O28  1  0.315  0.342  0.414  1.0
  O  O29  1  0.009  0.720  0.749  1.0
[/CIF]
.
The structure described by Nb2Mn3ZnO9 is Ilmenite-derived structured and crystallizes in the trigonal P3c1 space group. There are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded to three equivalent O(2) and three equivalent O(3) atoms to form distorted NbO6 octahedra that share corners with three equivalent Mn(2)O6 octahedra, corners with three equivalent Mn(3)O6 octahedra, and  a faceface with one Nb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-58°. In the second Nb site, Nb(2) is bonded to three equivalent O(1) and three equivalent O(3) atoms to form distorted NbO6 octahedra that share corners with three equivalent Mn(2)O6 octahedra, corners with three equivalent Mn(3)O6 octahedra, and  a faceface with one Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-58°. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 6-coordinate geometry to three equivalent O(1) and three equivalent O(3) 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 three equivalent Nb(1)O6 octahedra, corners with three equivalent Nb(2)O6 octahedra, and edges with three equivalent Mn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-58°. In the third Mn site, Mn(3) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form MnO6 octahedra that share corners with three equivalent Nb(1)O6 octahedra, corners with three equivalent Nb(2)O6 octahedra, and edges with three equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-58°. Zn(1) is bonded in a 6-coordinate geometry to three equivalent O(2) and three equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Nb(2), one Mn(1), one Mn(2), and one Mn(3) atom to form distorted OMn3Nb trigonal pyramids that share corners with four equivalent O(2)Mn2NbZn trigonal pyramids, corners with four equivalent O(1)Mn3Nb trigonal pyramids, corners with four equivalent O(3)MnNb2Zn trigonal pyramids,  an edgeedge with one O(2)Mn2NbZn trigonal pyramid,  an edgeedge with one O(3)MnNb2Zn trigonal pyramid, and edges with two equivalent O(1)Mn3Nb trigonal pyramids. In the second O site, O(2) is bonded to one Nb(1), one Mn(2), one Mn(3), and one Zn(1) atom to form distorted OMn2NbZn trigonal pyramids that share corners with four equivalent O(2)Mn2NbZn trigonal pyramids, corners with four equivalent O(1)Mn3Nb trigonal pyramids, corners with four equivalent O(3)MnNb2Zn trigonal pyramids,  an edgeedge with one O(1)Mn3Nb trigonal pyramid,  an edgeedge with one O(3)MnNb2Zn trigonal pyramid, and edges with two equivalent O(2)Mn2NbZn trigonal pyramids. In the third O site, O(3) is bonded to one Nb(1), one Nb(2), one Mn(1), and one Zn(1) atom to form distorted OMnNb2Zn trigonal pyramids that share corners with four equivalent O(2)Mn2NbZn trigonal pyramids, corners with four equivalent O(1)Mn3Nb trigonal pyramids, corners with four equivalent O(3)MnNb2Zn trigonal pyramids,  an edgeedge with one O(2)Mn2NbZn trigonal pyramid,  an edgeedge with one O(1)Mn3Nb trigonal pyramid, and edges with two equivalent O(3)MnNb2Zn trigonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mn3Nb2ZnO9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.288
_cell_length_b   5.288
_cell_length_c   14.320
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   346.802
_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  0.667  0.333  0.697  1.0
  Mn  Mn1  1  0.667  0.333  0.981  1.0
  Mn  Mn2  1  0.667  0.333  0.481  1.0
  Mn  Mn3  1  0.333  0.667  0.515  1.0
  Mn  Mn4  1  0.333  0.667  0.015  1.0
  Mn  Mn5  1  0.667  0.333  0.197  1.0
  Nb  Nb6  1  0.000  0.000  0.858  1.0
  Nb  Nb7  1  0.000  0.000  0.141  1.0
  Nb  Nb8  1  0.000  0.000  0.641  1.0
  Nb  Nb9  1  0.000  0.000  0.358  1.0
  Zn  Zn10  1  0.333  0.667  0.797  1.0
  Zn  Zn11  1  0.333  0.667  0.297  1.0
  O  O12  1  0.342  0.314  0.084  1.0
  O  O13  1  0.658  0.685  0.914  1.0
  O  O14  1  0.009  0.289  0.249  1.0
  O  O15  1  0.280  0.991  0.249  1.0
  O  O16  1  0.972  0.658  0.084  1.0
  O  O17  1  0.686  0.658  0.584  1.0
  O  O18  1  0.711  0.991  0.749  1.0
  O  O19  1  0.027  0.342  0.914  1.0
  O  O20  1  0.027  0.685  0.414  1.0
  O  O21  1  0.342  0.028  0.584  1.0
  O  O22  1  0.280  0.289  0.749  1.0
  O  O23  1  0.972  0.314  0.584  1.0
  O  O24  1  0.711  0.720  0.249  1.0
  O  O25  1  0.315  0.973  0.914  1.0
  O  O26  1  0.686  0.028  0.084  1.0
  O  O27  1  0.658  0.973  0.414  1.0
  O  O28  1  0.315  0.342  0.414  1.0
  O  O29  1  0.009  0.720  0.749  1.0
[/CIF]
.