The compound described by V3Mn2NiO8 is Spinel-derived structured and crystallizes in the triclinic P1 space group. There are six inequivalent V sites. In the first V site, V(1) is bonded to one O(1), one O(13), one O(15), one O(3), one O(7), and one O(9) atom to form VO6 octahedra that share  a cornercorner with one Mn(2)O4 tetrahedra,  a cornercorner with one Mn(4)O4 tetrahedra, corners with two equivalent Mn(1)O4 tetrahedra, corners with two equivalent Mn(3)O4 tetrahedra,  an edgeedge with one Ni(1)O6 octahedra,  an edgeedge with one Ni(2)O6 octahedra, edges with two equivalent V(3)O6 octahedra, and edges with two equivalent V(5)O6 octahedra. In the second V site, V(2) is bonded to one O(10), one O(14), one O(16), one O(2), one O(4), and one O(8) atom to form VO6 octahedra that share  a cornercorner with one Mn(1)O4 tetrahedra,  a cornercorner with one Mn(3)O4 tetrahedra, corners with two equivalent Mn(2)O4 tetrahedra, corners with two equivalent Mn(4)O4 tetrahedra,  an edgeedge with one Ni(1)O6 octahedra,  an edgeedge with one Ni(2)O6 octahedra, edges with two equivalent V(4)O6 octahedra, and edges with two equivalent V(6)O6 octahedra. In the third V site, V(3) is bonded to one O(1), one O(11), one O(15), one O(3), one O(5), and one O(9) atom to form VO6 octahedra that share  a cornercorner with one Mn(2)O4 tetrahedra,  a cornercorner with one Mn(4)O4 tetrahedra, corners with two equivalent Mn(1)O4 tetrahedra, corners with two equivalent Mn(3)O4 tetrahedra,  an edgeedge with one Ni(1)O6 octahedra,  an edgeedge with one Ni(2)O6 octahedra, edges with two equivalent V(1)O6 octahedra, and edges with two equivalent V(5)O6 octahedra. In the fourth V site, V(4) is bonded to one O(10), one O(12), one O(16), one O(2), one O(4), and one O(6) atom to form VO6 octahedra that share  a cornercorner with one Mn(1)O4 tetrahedra,  a cornercorner with one Mn(3)O4 tetrahedra, corners with two equivalent Mn(2)O4 tetrahedra, corners with two equivalent Mn(4)O4 tetrahedra,  an edgeedge with one Ni(1)O6 octahedra,  an edgeedge with one Ni(2)O6 octahedra, edges with two equivalent V(2)O6 octahedra, and edges with two equivalent V(6)O6 octahedra. In the fifth V site, V(5) is bonded to one O(1), one O(11), one O(13), one O(3), one O(5), and one O(7) atom to form VO6 octahedra that share  a cornercorner with one Mn(2)O4 tetrahedra,  a cornercorner with one Mn(4)O4 tetrahedra, corners with two equivalent Mn(1)O4 tetrahedra, corners with two equivalent Mn(3)O4 tetrahedra,  an edgeedge with one Ni(1)O6 octahedra,  an edgeedge with one Ni(2)O6 octahedra, edges with two equivalent V(1)O6 octahedra, and edges with two equivalent V(3)O6 octahedra. In the sixth V site, V(6) is bonded to one O(12), one O(14), one O(2), one O(4), one O(6), and one O(8) atom to form VO6 octahedra that share  a cornercorner with one Mn(1)O4 tetrahedra,  a cornercorner with one Mn(3)O4 tetrahedra, corners with two equivalent Mn(2)O4 tetrahedra, corners with two equivalent Mn(4)O4 tetrahedra,  an edgeedge with one Ni(1)O6 octahedra,  an edgeedge with one Ni(2)O6 octahedra, edges with two equivalent V(2)O6 octahedra, and edges with two equivalent V(4)O6 octahedra. There are four inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(11), one O(13), one O(15), and one O(4) atom to form MnO4 tetrahedra that share  a cornercorner with one V(2)O6 octahedra,  a cornercorner with one V(4)O6 octahedra,  a cornercorner with one V(6)O6 octahedra, corners with two equivalent V(1)O6 octahedra, corners with two equivalent V(3)O6 octahedra, corners with two equivalent V(5)O6 octahedra, and corners with three equivalent Ni(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-70°. In the second Mn site, Mn(2) is bonded to one O(12), one O(14), one O(16), and one O(3) atom to form MnO4 tetrahedra that share  a cornercorner with one V(1)O6 octahedra,  a cornercorner with one V(3)O6 octahedra,  a cornercorner with one V(5)O6 octahedra, corners with two equivalent V(2)O6 octahedra, corners with two equivalent V(4)O6 octahedra, corners with two equivalent V(6)O6 octahedra, and corners with three equivalent Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-64°. In the third Mn site, Mn(3) is bonded to one O(2), one O(5), one O(7), and one O(9) atom to form MnO4 tetrahedra that share  a cornercorner with one V(2)O6 octahedra,  a cornercorner with one V(4)O6 octahedra,  a cornercorner with one V(6)O6 octahedra, corners with two equivalent V(1)O6 octahedra, corners with two equivalent V(3)O6 octahedra, corners with two equivalent V(5)O6 octahedra, and corners with three equivalent Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-65°. In the fourth Mn site, Mn(4) is bonded to one O(1), one O(10), one O(6), and one O(8) atom to form MnO4 tetrahedra that share  a cornercorner with one V(1)O6 octahedra,  a cornercorner with one V(3)O6 octahedra,  a cornercorner with one V(5)O6 octahedra, corners with two equivalent V(2)O6 octahedra, corners with two equivalent V(4)O6 octahedra, corners with two equivalent V(6)O6 octahedra, and corners with three equivalent Ni(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-70°. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one O(12), one O(14), one O(16), one O(5), one O(7), and one O(9) atom to form NiO6 octahedra that share corners with three equivalent Mn(2)O4 tetrahedra, corners with three equivalent Mn(3)O4 tetrahedra,  an edgeedge with one V(1)O6 octahedra,  an edgeedge with one V(2)O6 octahedra,  an edgeedge with one V(3)O6 octahedra,  an edgeedge with one V(4)O6 octahedra,  an edgeedge with one V(5)O6 octahedra, and  an edgeedge with one V(6)O6 octahedra. In the second Ni site, Ni(2) is bonded to one O(10), one O(11), one O(13), one O(15), one O(6), and one O(8) atom to form NiO6 octahedra that share corners with three equivalent Mn(1)O4 tetrahedra, corners with three equivalent Mn(4)O4 tetrahedra,  an edgeedge with one V(1)O6 octahedra,  an edgeedge with one V(2)O6 octahedra,  an edgeedge with one V(3)O6 octahedra,  an edgeedge with one V(4)O6 octahedra,  an edgeedge with one V(5)O6 octahedra, and  an edgeedge with one V(6)O6 octahedra. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded to one V(1), one V(3), one V(5), and one Mn(4) atom to form a mixture of distorted edge and corner-sharing OMnV3 trigonal pyramids. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one V(2), one V(4), one V(6), and one Mn(3) atom. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one V(1), one V(3), one V(5), and one Mn(2) atom. In the fourth O site, O(4) is bonded to one V(2), one V(4), one V(6), and one Mn(1) atom to form a mixture of distorted edge and corner-sharing OMnV3 trigonal pyramids. In the fifth O site, O(5) is bonded to one V(3), one V(5), one Mn(3), and one Ni(1) atom to form distorted OMnV2Ni trigonal pyramids that share  a cornercorner with one O(14)MnV2Ni tetrahedra,  a cornercorner with one O(16)MnV2Ni tetrahedra,  a cornercorner with one O(7)MnV2Ni tetrahedra,  a cornercorner with one O(9)MnV2Ni tetrahedra,  a cornercorner with one O(12)MnV2Ni trigonal pyramid, corners with two equivalent O(11)MnV2Ni trigonal pyramids,  an edgeedge with one O(7)MnV2Ni tetrahedra,  an edgeedge with one O(9)MnV2Ni tetrahedra, and  an edgeedge with one O(1)MnV3 trigonal pyramid. In the sixth O site, O(6) is bonded to one V(4), one V(6), one Mn(4), and one Ni(2) atom to form distorted OMnV2Ni trigonal pyramids that share  a cornercorner with one O(14)MnV2Ni tetrahedra,  a cornercorner with one O(16)MnV2Ni tetrahedra,  a cornercorner with one O(11)MnV2Ni trigonal pyramid,  a cornercorner with one O(1)MnV3 trigonal pyramid, corners with two equivalent O(12)MnV2Ni trigonal pyramids, and corners with two equivalent O(4)MnV3 trigonal pyramids. In the seventh O site, O(7) is bonded to one V(1), one V(5), one Mn(3), and one Ni(1) atom to form distorted OMnV2Ni tetrahedra that share  a cornercorner with one O(14)MnV2Ni tetrahedra,  a cornercorner with one O(16)MnV2Ni tetrahedra,  a cornercorner with one O(9)MnV2Ni tetrahedra,  a cornercorner with one O(11)MnV2Ni trigonal pyramid,  a cornercorner with one O(12)MnV2Ni trigonal pyramid,  a cornercorner with one O(5)MnV2Ni trigonal pyramid,  an edgeedge with one O(9)MnV2Ni tetrahedra,  an edgeedge with one O(5)MnV2Ni trigonal pyramid, and  an edgeedge with one O(1)MnV3 trigonal pyramid. In the eighth O site, O(8) is bonded in a rectangular see-saw-like geometry to one V(2), one V(6), one Mn(4), and one Ni(2) atom. In the ninth O site, O(9) is bonded to one V(1), one V(3), one Mn(3), and one Ni(1) atom to form distorted OMnV2Ni tetrahedra that share  a cornercorner with one O(14)MnV2Ni tetrahedra,  a cornercorner with one O(16)MnV2Ni tetrahedra,  a cornercorner with one O(7)MnV2Ni tetrahedra,  a cornercorner with one O(11)MnV2Ni trigonal pyramid,  a cornercorner with one O(12)MnV2Ni trigonal pyramid,  a cornercorner with one O(5)MnV2Ni trigonal pyramid,  an edgeedge with one O(7)MnV2Ni tetrahedra,  an edgeedge with one O(5)MnV2Ni trigonal pyramid, and  an edgeedge with one O(1)MnV3 trigonal pyramid. In the tenth O site, O(10) is bonded in a rectangular see-saw-like geometry to one V(2), one V(4), one Mn(4), and one Ni(2) atom. In the eleventh O site, O(11) is bonded to one V(3), one V(5), one Mn(1), and one Ni(2) atom to form distorted OMnV2Ni trigonal pyramids that share  a cornercorner with one O(7)MnV2Ni tetrahedra,  a cornercorner with one O(9)MnV2Ni tetrahedra,  a cornercorner with one O(6)MnV2Ni trigonal pyramid,  a cornercorner with one O(4)MnV3 trigonal pyramid, corners with two equivalent O(5)MnV2Ni trigonal pyramids, and corners with two equivalent O(1)MnV3 trigonal pyramids. In the twelfth O site, O(12) is bonded to one V(4), one V(6), one Mn(2), and one Ni(1) atom to form distorted OMnV2Ni trigonal pyramids that share  a cornercorner with one O(14)MnV2Ni tetrahedra,  a cornercorner with one O(16)MnV2Ni tetrahedra,  a cornercorner with one O(7)MnV2Ni tetrahedra,  a cornercorner with one O(9)MnV2Ni tetrahedra,  a cornercorner with one O(5)MnV2Ni trigonal pyramid, corners with two equivalent O(6)MnV2Ni trigonal pyramids,  an edgeedge with one O(14)MnV2Ni tetrahedra,  an edgeedge with one O(16)MnV2Ni tetrahedra, and  an edgeedge with one O(4)MnV3 trigonal pyramid. In the thirteenth O site, O(13) is bonded in a rectangular see-saw-like geometry to one V(1), one V(5), one Mn(1), and one Ni(2) atom. In the fourteenth O site, O(14) is bonded to one V(2), one V(6), one Mn(2), and one Ni(1) atom to form distorted OMnV2Ni tetrahedra that share  a cornercorner with one O(16)MnV2Ni tetrahedra,  a cornercorner with one O(7)MnV2Ni tetrahedra,  a cornercorner with one O(9)MnV2Ni tetrahedra,  a cornercorner with one O(12)MnV2Ni trigonal pyramid,  a cornercorner with one O(5)MnV2Ni trigonal pyramid,  a cornercorner with one O(6)MnV2Ni trigonal pyramid,  an edgeedge with one O(16)MnV2Ni tetrahedra,  an edgeedge with one O(12)MnV2Ni trigonal pyramid, and  an edgeedge with one O(4)MnV3 trigonal pyramid. In the fifteenth O site, O(15) is bonded in a rectangular see-saw-like geometry to one V(1), one V(3), one Mn(1), and one Ni(2) atom. In the sixteenth O site, O(16) is bonded to one V(2), one V(4), one Mn(2), and one Ni(1) atom to form distorted OMnV2Ni tetrahedra that share  a cornercorner with one O(14)MnV2Ni tetrahedra,  a cornercorner with one O(7)MnV2Ni tetrahedra,  a cornercorner with one O(9)MnV2Ni tetrahedra,  a cornercorner with one O(12)MnV2Ni trigonal pyramid,  a cornercorner with one O(5)MnV2Ni trigonal pyramid,  a cornercorner with one O(6)MnV2Ni trigonal pyramid,  an edgeedge with one O(14)MnV2Ni tetrahedra,  an edgeedge with one O(12)MnV2Ni trigonal pyramid, and  an edgeedge with one O(4)MnV3 trigonal pyramid. is represented by the CIF file [CIF]
data_Mn2V3NiO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.884
_cell_length_b   6.059
_cell_length_c   10.544
_cell_angle_alpha   106.700
_cell_angle_beta   107.995
_cell_angle_gamma   59.006
_symmetry_Int_Tables_number   1
_cell_volume   302.657
_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  0.135  0.123  0.380  1.0
  Mn  Mn1  1  0.613  0.629  0.871  1.0
  Mn  Mn2  1  0.012  0.996  0.005  1.0
  Mn  Mn3  1  0.490  0.502  0.495  1.0
  V  V4  1  0.048  0.569  0.185  1.0
  V  V5  1  0.577  0.056  0.689  1.0
  V  V6  1  0.571  0.059  0.188  1.0
  V  V7  1  0.053  0.566  0.687  1.0
  V  V8  1  0.571  0.558  0.188  1.0
  V  V9  1  0.054  0.067  0.688  1.0
  Ni  Ni10  1  0.314  0.312  0.937  1.0
  Ni  Ni11  1  0.813  0.812  0.437  1.0
  O  O12  1  0.429  0.431  0.291  1.0
  O  O13  1  0.939  0.931  0.801  1.0
  O  O14  1  0.686  0.694  0.074  1.0
  O  O15  1  0.196  0.194  0.584  1.0
  O  O16  1  0.675  0.203  0.081  1.0
  O  O17  1  0.167  0.708  0.583  1.0
  O  O18  1  0.207  0.656  0.073  1.0
  O  O19  1  0.700  0.161  0.568  1.0
  O  O20  1  0.207  0.211  0.073  1.0
  O  O21  1  0.700  0.706  0.567  1.0
  O  O22  1  0.458  0.917  0.292  1.0
  O  O23  1  0.950  0.422  0.795  1.0
  O  O24  1  0.925  0.464  0.307  1.0
  O  O25  1  0.418  0.968  0.801  1.0
  O  O26  1  0.925  0.919  0.307  1.0
  O  O27  1  0.418  0.415  0.801  1.0
[/CIF]
.
The compound described by V3Mn2NiO8 is Spinel-derived structured and crystallizes in the triclinic P1 space group. There are six inequivalent V sites. In the first V site, V(1) is bonded to one O(1), one O(13), one O(15), one O(3), one O(7), and one O(9) atom to form VO6 octahedra that share  a cornercorner with one Mn(2)O4 tetrahedra,  a cornercorner with one Mn(4)O4 tetrahedra, corners with two equivalent Mn(1)O4 tetrahedra, corners with two equivalent Mn(3)O4 tetrahedra,  an edgeedge with one Ni(1)O6 octahedra,  an edgeedge with one Ni(2)O6 octahedra, edges with two equivalent V(3)O6 octahedra, and edges with two equivalent V(5)O6 octahedra. In the second V site, V(2) is bonded to one O(10), one O(14), one O(16), one O(2), one O(4), and one O(8) atom to form VO6 octahedra that share  a cornercorner with one Mn(1)O4 tetrahedra,  a cornercorner with one Mn(3)O4 tetrahedra, corners with two equivalent Mn(2)O4 tetrahedra, corners with two equivalent Mn(4)O4 tetrahedra,  an edgeedge with one Ni(1)O6 octahedra,  an edgeedge with one Ni(2)O6 octahedra, edges with two equivalent V(4)O6 octahedra, and edges with two equivalent V(6)O6 octahedra. In the third V site, V(3) is bonded to one O(1), one O(11), one O(15), one O(3), one O(5), and one O(9) atom to form VO6 octahedra that share  a cornercorner with one Mn(2)O4 tetrahedra,  a cornercorner with one Mn(4)O4 tetrahedra, corners with two equivalent Mn(1)O4 tetrahedra, corners with two equivalent Mn(3)O4 tetrahedra,  an edgeedge with one Ni(1)O6 octahedra,  an edgeedge with one Ni(2)O6 octahedra, edges with two equivalent V(1)O6 octahedra, and edges with two equivalent V(5)O6 octahedra. In the fourth V site, V(4) is bonded to one O(10), one O(12), one O(16), one O(2), one O(4), and one O(6) atom to form VO6 octahedra that share  a cornercorner with one Mn(1)O4 tetrahedra,  a cornercorner with one Mn(3)O4 tetrahedra, corners with two equivalent Mn(2)O4 tetrahedra, corners with two equivalent Mn(4)O4 tetrahedra,  an edgeedge with one Ni(1)O6 octahedra,  an edgeedge with one Ni(2)O6 octahedra, edges with two equivalent V(2)O6 octahedra, and edges with two equivalent V(6)O6 octahedra. In the fifth V site, V(5) is bonded to one O(1), one O(11), one O(13), one O(3), one O(5), and one O(7) atom to form VO6 octahedra that share  a cornercorner with one Mn(2)O4 tetrahedra,  a cornercorner with one Mn(4)O4 tetrahedra, corners with two equivalent Mn(1)O4 tetrahedra, corners with two equivalent Mn(3)O4 tetrahedra,  an edgeedge with one Ni(1)O6 octahedra,  an edgeedge with one Ni(2)O6 octahedra, edges with two equivalent V(1)O6 octahedra, and edges with two equivalent V(3)O6 octahedra. In the sixth V site, V(6) is bonded to one O(12), one O(14), one O(2), one O(4), one O(6), and one O(8) atom to form VO6 octahedra that share  a cornercorner with one Mn(1)O4 tetrahedra,  a cornercorner with one Mn(3)O4 tetrahedra, corners with two equivalent Mn(2)O4 tetrahedra, corners with two equivalent Mn(4)O4 tetrahedra,  an edgeedge with one Ni(1)O6 octahedra,  an edgeedge with one Ni(2)O6 octahedra, edges with two equivalent V(2)O6 octahedra, and edges with two equivalent V(4)O6 octahedra. There are four inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(11), one O(13), one O(15), and one O(4) atom to form MnO4 tetrahedra that share  a cornercorner with one V(2)O6 octahedra,  a cornercorner with one V(4)O6 octahedra,  a cornercorner with one V(6)O6 octahedra, corners with two equivalent V(1)O6 octahedra, corners with two equivalent V(3)O6 octahedra, corners with two equivalent V(5)O6 octahedra, and corners with three equivalent Ni(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-70°. In the second Mn site, Mn(2) is bonded to one O(12), one O(14), one O(16), and one O(3) atom to form MnO4 tetrahedra that share  a cornercorner with one V(1)O6 octahedra,  a cornercorner with one V(3)O6 octahedra,  a cornercorner with one V(5)O6 octahedra, corners with two equivalent V(2)O6 octahedra, corners with two equivalent V(4)O6 octahedra, corners with two equivalent V(6)O6 octahedra, and corners with three equivalent Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-64°. In the third Mn site, Mn(3) is bonded to one O(2), one O(5), one O(7), and one O(9) atom to form MnO4 tetrahedra that share  a cornercorner with one V(2)O6 octahedra,  a cornercorner with one V(4)O6 octahedra,  a cornercorner with one V(6)O6 octahedra, corners with two equivalent V(1)O6 octahedra, corners with two equivalent V(3)O6 octahedra, corners with two equivalent V(5)O6 octahedra, and corners with three equivalent Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-65°. In the fourth Mn site, Mn(4) is bonded to one O(1), one O(10), one O(6), and one O(8) atom to form MnO4 tetrahedra that share  a cornercorner with one V(1)O6 octahedra,  a cornercorner with one V(3)O6 octahedra,  a cornercorner with one V(5)O6 octahedra, corners with two equivalent V(2)O6 octahedra, corners with two equivalent V(4)O6 octahedra, corners with two equivalent V(6)O6 octahedra, and corners with three equivalent Ni(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-70°. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one O(12), one O(14), one O(16), one O(5), one O(7), and one O(9) atom to form NiO6 octahedra that share corners with three equivalent Mn(2)O4 tetrahedra, corners with three equivalent Mn(3)O4 tetrahedra,  an edgeedge with one V(1)O6 octahedra,  an edgeedge with one V(2)O6 octahedra,  an edgeedge with one V(3)O6 octahedra,  an edgeedge with one V(4)O6 octahedra,  an edgeedge with one V(5)O6 octahedra, and  an edgeedge with one V(6)O6 octahedra. In the second Ni site, Ni(2) is bonded to one O(10), one O(11), one O(13), one O(15), one O(6), and one O(8) atom to form NiO6 octahedra that share corners with three equivalent Mn(1)O4 tetrahedra, corners with three equivalent Mn(4)O4 tetrahedra,  an edgeedge with one V(1)O6 octahedra,  an edgeedge with one V(2)O6 octahedra,  an edgeedge with one V(3)O6 octahedra,  an edgeedge with one V(4)O6 octahedra,  an edgeedge with one V(5)O6 octahedra, and  an edgeedge with one V(6)O6 octahedra. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded to one V(1), one V(3), one V(5), and one Mn(4) atom to form a mixture of distorted edge and corner-sharing OMnV3 trigonal pyramids. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one V(2), one V(4), one V(6), and one Mn(3) atom. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one V(1), one V(3), one V(5), and one Mn(2) atom. In the fourth O site, O(4) is bonded to one V(2), one V(4), one V(6), and one Mn(1) atom to form a mixture of distorted edge and corner-sharing OMnV3 trigonal pyramids. In the fifth O site, O(5) is bonded to one V(3), one V(5), one Mn(3), and one Ni(1) atom to form distorted OMnV2Ni trigonal pyramids that share  a cornercorner with one O(14)MnV2Ni tetrahedra,  a cornercorner with one O(16)MnV2Ni tetrahedra,  a cornercorner with one O(7)MnV2Ni tetrahedra,  a cornercorner with one O(9)MnV2Ni tetrahedra,  a cornercorner with one O(12)MnV2Ni trigonal pyramid, corners with two equivalent O(11)MnV2Ni trigonal pyramids,  an edgeedge with one O(7)MnV2Ni tetrahedra,  an edgeedge with one O(9)MnV2Ni tetrahedra, and  an edgeedge with one O(1)MnV3 trigonal pyramid. In the sixth O site, O(6) is bonded to one V(4), one V(6), one Mn(4), and one Ni(2) atom to form distorted OMnV2Ni trigonal pyramids that share  a cornercorner with one O(14)MnV2Ni tetrahedra,  a cornercorner with one O(16)MnV2Ni tetrahedra,  a cornercorner with one O(11)MnV2Ni trigonal pyramid,  a cornercorner with one O(1)MnV3 trigonal pyramid, corners with two equivalent O(12)MnV2Ni trigonal pyramids, and corners with two equivalent O(4)MnV3 trigonal pyramids. In the seventh O site, O(7) is bonded to one V(1), one V(5), one Mn(3), and one Ni(1) atom to form distorted OMnV2Ni tetrahedra that share  a cornercorner with one O(14)MnV2Ni tetrahedra,  a cornercorner with one O(16)MnV2Ni tetrahedra,  a cornercorner with one O(9)MnV2Ni tetrahedra,  a cornercorner with one O(11)MnV2Ni trigonal pyramid,  a cornercorner with one O(12)MnV2Ni trigonal pyramid,  a cornercorner with one O(5)MnV2Ni trigonal pyramid,  an edgeedge with one O(9)MnV2Ni tetrahedra,  an edgeedge with one O(5)MnV2Ni trigonal pyramid, and  an edgeedge with one O(1)MnV3 trigonal pyramid. In the eighth O site, O(8) is bonded in a rectangular see-saw-like geometry to one V(2), one V(6), one Mn(4), and one Ni(2) atom. In the ninth O site, O(9) is bonded to one V(1), one V(3), one Mn(3), and one Ni(1) atom to form distorted OMnV2Ni tetrahedra that share  a cornercorner with one O(14)MnV2Ni tetrahedra,  a cornercorner with one O(16)MnV2Ni tetrahedra,  a cornercorner with one O(7)MnV2Ni tetrahedra,  a cornercorner with one O(11)MnV2Ni trigonal pyramid,  a cornercorner with one O(12)MnV2Ni trigonal pyramid,  a cornercorner with one O(5)MnV2Ni trigonal pyramid,  an edgeedge with one O(7)MnV2Ni tetrahedra,  an edgeedge with one O(5)MnV2Ni trigonal pyramid, and  an edgeedge with one O(1)MnV3 trigonal pyramid. In the tenth O site, O(10) is bonded in a rectangular see-saw-like geometry to one V(2), one V(4), one Mn(4), and one Ni(2) atom. In the eleventh O site, O(11) is bonded to one V(3), one V(5), one Mn(1), and one Ni(2) atom to form distorted OMnV2Ni trigonal pyramids that share  a cornercorner with one O(7)MnV2Ni tetrahedra,  a cornercorner with one O(9)MnV2Ni tetrahedra,  a cornercorner with one O(6)MnV2Ni trigonal pyramid,  a cornercorner with one O(4)MnV3 trigonal pyramid, corners with two equivalent O(5)MnV2Ni trigonal pyramids, and corners with two equivalent O(1)MnV3 trigonal pyramids. In the twelfth O site, O(12) is bonded to one V(4), one V(6), one Mn(2), and one Ni(1) atom to form distorted OMnV2Ni trigonal pyramids that share  a cornercorner with one O(14)MnV2Ni tetrahedra,  a cornercorner with one O(16)MnV2Ni tetrahedra,  a cornercorner with one O(7)MnV2Ni tetrahedra,  a cornercorner with one O(9)MnV2Ni tetrahedra,  a cornercorner with one O(5)MnV2Ni trigonal pyramid, corners with two equivalent O(6)MnV2Ni trigonal pyramids,  an edgeedge with one O(14)MnV2Ni tetrahedra,  an edgeedge with one O(16)MnV2Ni tetrahedra, and  an edgeedge with one O(4)MnV3 trigonal pyramid. In the thirteenth O site, O(13) is bonded in a rectangular see-saw-like geometry to one V(1), one V(5), one Mn(1), and one Ni(2) atom. In the fourteenth O site, O(14) is bonded to one V(2), one V(6), one Mn(2), and one Ni(1) atom to form distorted OMnV2Ni tetrahedra that share  a cornercorner with one O(16)MnV2Ni tetrahedra,  a cornercorner with one O(7)MnV2Ni tetrahedra,  a cornercorner with one O(9)MnV2Ni tetrahedra,  a cornercorner with one O(12)MnV2Ni trigonal pyramid,  a cornercorner with one O(5)MnV2Ni trigonal pyramid,  a cornercorner with one O(6)MnV2Ni trigonal pyramid,  an edgeedge with one O(16)MnV2Ni tetrahedra,  an edgeedge with one O(12)MnV2Ni trigonal pyramid, and  an edgeedge with one O(4)MnV3 trigonal pyramid. In the fifteenth O site, O(15) is bonded in a rectangular see-saw-like geometry to one V(1), one V(3), one Mn(1), and one Ni(2) atom. In the sixteenth O site, O(16) is bonded to one V(2), one V(4), one Mn(2), and one Ni(1) atom to form distorted OMnV2Ni tetrahedra that share  a cornercorner with one O(14)MnV2Ni tetrahedra,  a cornercorner with one O(7)MnV2Ni tetrahedra,  a cornercorner with one O(9)MnV2Ni tetrahedra,  a cornercorner with one O(12)MnV2Ni trigonal pyramid,  a cornercorner with one O(5)MnV2Ni trigonal pyramid,  a cornercorner with one O(6)MnV2Ni trigonal pyramid,  an edgeedge with one O(14)MnV2Ni tetrahedra,  an edgeedge with one O(12)MnV2Ni trigonal pyramid, and  an edgeedge with one O(4)MnV3 trigonal pyramid. is represented by the CIF file [CIF]
data_Mn2V3NiO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.884
_cell_length_b   6.059
_cell_length_c   10.544
_cell_angle_alpha   106.700
_cell_angle_beta   107.995
_cell_angle_gamma   59.006
_symmetry_Int_Tables_number   1
_cell_volume   302.657
_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  0.135  0.123  0.380  1.0
  Mn  Mn1  1  0.613  0.629  0.871  1.0
  Mn  Mn2  1  0.012  0.996  0.005  1.0
  Mn  Mn3  1  0.490  0.502  0.495  1.0
  V  V4  1  0.048  0.569  0.185  1.0
  V  V5  1  0.577  0.056  0.689  1.0
  V  V6  1  0.571  0.059  0.188  1.0
  V  V7  1  0.053  0.566  0.687  1.0
  V  V8  1  0.571  0.558  0.188  1.0
  V  V9  1  0.054  0.067  0.688  1.0
  Ni  Ni10  1  0.314  0.312  0.937  1.0
  Ni  Ni11  1  0.813  0.812  0.437  1.0
  O  O12  1  0.429  0.431  0.291  1.0
  O  O13  1  0.939  0.931  0.801  1.0
  O  O14  1  0.686  0.694  0.074  1.0
  O  O15  1  0.196  0.194  0.584  1.0
  O  O16  1  0.675  0.203  0.081  1.0
  O  O17  1  0.167  0.708  0.583  1.0
  O  O18  1  0.207  0.656  0.073  1.0
  O  O19  1  0.700  0.161  0.568  1.0
  O  O20  1  0.207  0.211  0.073  1.0
  O  O21  1  0.700  0.706  0.567  1.0
  O  O22  1  0.458  0.917  0.292  1.0
  O  O23  1  0.950  0.422  0.795  1.0
  O  O24  1  0.925  0.464  0.307  1.0
  O  O25  1  0.418  0.968  0.801  1.0
  O  O26  1  0.925  0.919  0.307  1.0
  O  O27  1  0.418  0.415  0.801  1.0
[/CIF]
.