The material described by Nb2Cr3Mn3O16 is Hydrophilite-derived structured and crystallizes in the triclinic P1 space group. There are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded to one O(1), one O(10), one O(2), one O(6), one O(7), and one O(8) atom to form distorted NbO6 octahedra that share corners with two equivalent Cr(3)O6 octahedra, corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra,  an edgeedge with one Cr(1)O6 octahedra,  an edgeedge with one Cr(2)O6 octahedra, and  an edgeedge with one Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-53°. In the second Nb site, Nb(2) is bonded to one O(11), one O(12), one O(14), one O(15), one O(16), and one O(9) atom to form distorted NbO6 octahedra that share corners with two equivalent Cr(1)O6 octahedra, corners with two equivalent Cr(2)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra,  an edgeedge with one Cr(3)O6 octahedra,  an edgeedge with one Mn(2)O6 octahedra, and  an edgeedge with one Mn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-53°. There are three inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one O(14), one O(2), one O(3), one O(4), one O(7), and one O(9) atom to form CrO6 octahedra that share corners with two equivalent Nb(2)O6 octahedra,  an edgeedge with one Nb(1)O6 octahedra, edges with two equivalent Cr(2)O6 octahedra, and edges with two equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles are 50°. In the second Cr site, Cr(2) is bonded to one O(16), one O(2), one O(3), one O(4), one O(8), and one O(9) atom to form CrO6 octahedra that share corners with two equivalent Nb(2)O6 octahedra,  an edgeedge with one Nb(1)O6 octahedra, edges with two equivalent Cr(1)O6 octahedra, and edges with two equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-53°. In the third Cr site, Cr(3) is bonded to one O(1), one O(11), one O(12), one O(13), one O(5), and one O(6) atom to form CrO6 octahedra that share corners with two equivalent Nb(1)O6 octahedra,  an edgeedge with one Nb(2)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, and edges with two equivalent Mn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-53°. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(14), one O(16), one O(3), one O(4), one O(7), and one O(8) atom to form MnO6 octahedra that share corners with two equivalent Nb(2)O6 octahedra,  an edgeedge with one Nb(1)O6 octahedra, edges with two equivalent Cr(1)O6 octahedra, and edges with two equivalent Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles are 52°. In the second Mn site, Mn(2) is bonded to one O(1), one O(10), one O(11), one O(13), one O(15), and one O(5) atom to form MnO6 octahedra that share corners with two equivalent Nb(1)O6 octahedra,  an edgeedge with one Nb(2)O6 octahedra, edges with two equivalent Cr(3)O6 octahedra, and edges with two equivalent Mn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-52°. In the third Mn site, Mn(3) is bonded to one O(10), one O(12), one O(13), one O(15), one O(5), and one O(6) atom to form MnO6 octahedra that share corners with two equivalent Nb(1)O6 octahedra,  an edgeedge with one Nb(2)O6 octahedra, edges with two equivalent Cr(3)O6 octahedra, and edges with two equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-51°. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Nb(1), one Cr(3), and one Mn(2) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Nb(1), one Cr(1), and one Cr(2) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Cr(1), one Cr(2), and one Mn(1) atom. In the fourth O site, O(4) is bonded in a trigonal non-coplanar geometry to one Cr(1), one Cr(2), and one Mn(1) atom. In the fifth O site, O(5) is bonded in a trigonal non-coplanar geometry to one Cr(3), one Mn(2), and one Mn(3) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Nb(1), one Cr(3), and one Mn(3) atom. In the seventh O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one Nb(1), one Cr(1), and one Mn(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one Nb(1), one Cr(2), and one Mn(1) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Nb(2), one Cr(1), and one Cr(2) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Nb(1), one Mn(2), and one Mn(3) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal non-coplanar geometry to one Nb(2), one Cr(3), and one Mn(2) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal non-coplanar geometry to one Nb(2), one Cr(3), and one Mn(3) atom. In the thirteenth O site, O(13) is bonded in a distorted T-shaped geometry to one Cr(3), one Mn(2), and one Mn(3) atom. In the fourteenth O site, O(14) is bonded in a distorted trigonal planar geometry to one Nb(2), one Cr(1), and one Mn(1) atom. In the fifteenth O site, O(15) is bonded in a distorted trigonal non-coplanar geometry to one Nb(2), one Mn(2), and one Mn(3) atom. In the sixteenth O site, O(16) is bonded in a distorted trigonal planar geometry to one Nb(2), one Cr(2), and one Mn(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mn3Nb2Cr3O16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.913
_cell_length_b   5.914
_cell_length_c   9.305
_cell_angle_alpha   90.018
_cell_angle_beta   90.471
_cell_angle_gamma   119.604
_symmetry_Int_Tables_number   1
_cell_volume   282.901
_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
  Mn  Mn0  1  0.342  0.171  0.211  1.0
  Mn  Mn1  1  0.170  0.338  0.714  1.0
  Mn  Mn2  1  0.171  0.833  0.714  1.0
  Nb  Nb3  1  0.667  0.336  0.500  1.0
  Nb  Nb4  1  0.339  0.670  0.999  1.0
  Cr  Cr5  1  0.837  0.176  0.221  1.0
  Cr  Cr6  1  0.832  0.662  0.211  1.0
  Cr  Cr7  1  0.663  0.832  0.714  1.0
  O  O8  1  0.835  0.171  0.599  1.0
  O  O9  1  0.952  0.468  0.338  1.0
  O  O10  1  0.663  0.322  0.109  1.0
  O  O11  1  0.005  0.011  0.302  1.0
  O  O12  1  0.011  0.006  0.810  1.0
  O  O13  1  0.836  0.665  0.598  1.0
  O  O14  1  0.519  0.044  0.333  1.0
  O  O15  1  0.515  0.469  0.334  1.0
  O  O16  1  0.664  0.836  0.097  1.0
  O  O17  1  0.335  0.166  0.601  1.0
  O  O18  1  0.469  0.514  0.835  1.0
  O  O19  1  0.469  0.955  0.835  1.0
  O  O20  1  0.323  0.661  0.610  1.0
  O  O21  1  0.170  0.339  0.100  1.0
  O  O22  1  0.041  0.521  0.830  1.0
  O  O23  1  0.172  0.834  0.100  1.0
[/CIF]
.
The material described by Nb2Cr3Mn3O16 is Hydrophilite-derived structured and crystallizes in the triclinic P1 space group. There are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded to one O(1), one O(10), one O(2), one O(6), one O(7), and one O(8) atom to form distorted NbO6 octahedra that share corners with two equivalent Cr(3)O6 octahedra, corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra,  an edgeedge with one Cr(1)O6 octahedra,  an edgeedge with one Cr(2)O6 octahedra, and  an edgeedge with one Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-53°. In the second Nb site, Nb(2) is bonded to one O(11), one O(12), one O(14), one O(15), one O(16), and one O(9) atom to form distorted NbO6 octahedra that share corners with two equivalent Cr(1)O6 octahedra, corners with two equivalent Cr(2)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra,  an edgeedge with one Cr(3)O6 octahedra,  an edgeedge with one Mn(2)O6 octahedra, and  an edgeedge with one Mn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-53°. There are three inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one O(14), one O(2), one O(3), one O(4), one O(7), and one O(9) atom to form CrO6 octahedra that share corners with two equivalent Nb(2)O6 octahedra,  an edgeedge with one Nb(1)O6 octahedra, edges with two equivalent Cr(2)O6 octahedra, and edges with two equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles are 50°. In the second Cr site, Cr(2) is bonded to one O(16), one O(2), one O(3), one O(4), one O(8), and one O(9) atom to form CrO6 octahedra that share corners with two equivalent Nb(2)O6 octahedra,  an edgeedge with one Nb(1)O6 octahedra, edges with two equivalent Cr(1)O6 octahedra, and edges with two equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-53°. In the third Cr site, Cr(3) is bonded to one O(1), one O(11), one O(12), one O(13), one O(5), and one O(6) atom to form CrO6 octahedra that share corners with two equivalent Nb(1)O6 octahedra,  an edgeedge with one Nb(2)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, and edges with two equivalent Mn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-53°. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(14), one O(16), one O(3), one O(4), one O(7), and one O(8) atom to form MnO6 octahedra that share corners with two equivalent Nb(2)O6 octahedra,  an edgeedge with one Nb(1)O6 octahedra, edges with two equivalent Cr(1)O6 octahedra, and edges with two equivalent Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles are 52°. In the second Mn site, Mn(2) is bonded to one O(1), one O(10), one O(11), one O(13), one O(15), and one O(5) atom to form MnO6 octahedra that share corners with two equivalent Nb(1)O6 octahedra,  an edgeedge with one Nb(2)O6 octahedra, edges with two equivalent Cr(3)O6 octahedra, and edges with two equivalent Mn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-52°. In the third Mn site, Mn(3) is bonded to one O(10), one O(12), one O(13), one O(15), one O(5), and one O(6) atom to form MnO6 octahedra that share corners with two equivalent Nb(1)O6 octahedra,  an edgeedge with one Nb(2)O6 octahedra, edges with two equivalent Cr(3)O6 octahedra, and edges with two equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-51°. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Nb(1), one Cr(3), and one Mn(2) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Nb(1), one Cr(1), and one Cr(2) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Cr(1), one Cr(2), and one Mn(1) atom. In the fourth O site, O(4) is bonded in a trigonal non-coplanar geometry to one Cr(1), one Cr(2), and one Mn(1) atom. In the fifth O site, O(5) is bonded in a trigonal non-coplanar geometry to one Cr(3), one Mn(2), and one Mn(3) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Nb(1), one Cr(3), and one Mn(3) atom. In the seventh O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one Nb(1), one Cr(1), and one Mn(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one Nb(1), one Cr(2), and one Mn(1) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Nb(2), one Cr(1), and one Cr(2) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Nb(1), one Mn(2), and one Mn(3) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal non-coplanar geometry to one Nb(2), one Cr(3), and one Mn(2) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal non-coplanar geometry to one Nb(2), one Cr(3), and one Mn(3) atom. In the thirteenth O site, O(13) is bonded in a distorted T-shaped geometry to one Cr(3), one Mn(2), and one Mn(3) atom. In the fourteenth O site, O(14) is bonded in a distorted trigonal planar geometry to one Nb(2), one Cr(1), and one Mn(1) atom. In the fifteenth O site, O(15) is bonded in a distorted trigonal non-coplanar geometry to one Nb(2), one Mn(2), and one Mn(3) atom. In the sixteenth O site, O(16) is bonded in a distorted trigonal planar geometry to one Nb(2), one Cr(2), and one Mn(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mn3Nb2Cr3O16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.913
_cell_length_b   5.914
_cell_length_c   9.305
_cell_angle_alpha   90.018
_cell_angle_beta   90.471
_cell_angle_gamma   119.604
_symmetry_Int_Tables_number   1
_cell_volume   282.901
_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
  Mn  Mn0  1  0.342  0.171  0.211  1.0
  Mn  Mn1  1  0.170  0.338  0.714  1.0
  Mn  Mn2  1  0.171  0.833  0.714  1.0
  Nb  Nb3  1  0.667  0.336  0.500  1.0
  Nb  Nb4  1  0.339  0.670  0.999  1.0
  Cr  Cr5  1  0.837  0.176  0.221  1.0
  Cr  Cr6  1  0.832  0.662  0.211  1.0
  Cr  Cr7  1  0.663  0.832  0.714  1.0
  O  O8  1  0.835  0.171  0.599  1.0
  O  O9  1  0.952  0.468  0.338  1.0
  O  O10  1  0.663  0.322  0.109  1.0
  O  O11  1  0.005  0.011  0.302  1.0
  O  O12  1  0.011  0.006  0.810  1.0
  O  O13  1  0.836  0.665  0.598  1.0
  O  O14  1  0.519  0.044  0.333  1.0
  O  O15  1  0.515  0.469  0.334  1.0
  O  O16  1  0.664  0.836  0.097  1.0
  O  O17  1  0.335  0.166  0.601  1.0
  O  O18  1  0.469  0.514  0.835  1.0
  O  O19  1  0.469  0.955  0.835  1.0
  O  O20  1  0.323  0.661  0.610  1.0
  O  O21  1  0.170  0.339  0.100  1.0
  O  O22  1  0.041  0.521  0.830  1.0
  O  O23  1  0.172  0.834  0.100  1.0
[/CIF]
.