The structure described by Nb2VZn2O8 crystallizes in the monoclinic C2/c space group. Nb(1) is bonded to one O(2), one O(4), two equivalent O(1), and two equivalent O(3) atoms to form distorted NbO6 octahedra that share corners with four equivalent V(1)O6 octahedra and edges with two equivalent Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-55°. V(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form VO6 octahedra that share corners with eight equivalent Nb(1)O6 octahedra and edges with two equivalent V(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-55°. Zn(1) is bonded in a distorted see-saw-like geometry to one O(3) and three equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to two equivalent Nb(1) and one V(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Nb(1) and two equivalent V(1) atoms. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Nb(1) and one Zn(1) atom. In the fourth O site, O(4) is bonded to one Nb(1) and three equivalent Zn(1) atoms to form a mixture of corner and edge-sharing ONbZn3 trigonal pyramids. is represented by the CIF card [CIF]
data_Nb2VZn2O8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.208
_cell_length_b   10.208
_cell_length_c   5.313
_cell_angle_alpha   89.677
_cell_angle_beta   89.677
_cell_angle_gamma   33.962
_symmetry_Int_Tables_number   1
_cell_volume   309.295
_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
  Nb  Nb0  1  0.725  0.043  0.765  1.0
  Nb  Nb1  1  0.957  0.275  0.735  1.0
  Nb  Nb2  1  0.275  0.957  0.235  1.0
  Nb  Nb3  1  0.043  0.725  0.265  1.0
  V  V4  1  0.353  0.647  0.750  1.0
  V  V5  1  0.647  0.353  0.250  1.0
  Zn  Zn6  1  0.565  0.873  0.732  1.0
  Zn  Zn7  1  0.127  0.435  0.768  1.0
  Zn  Zn8  1  0.435  0.127  0.268  1.0
  Zn  Zn9  1  0.873  0.565  0.232  1.0
  O  O10  1  0.814  0.045  0.427  1.0
  O  O11  1  0.955  0.186  0.073  1.0
  O  O12  1  0.186  0.955  0.573  1.0
  O  O13  1  0.045  0.814  0.927  1.0
  O  O14  1  0.568  0.315  0.905  1.0
  O  O15  1  0.685  0.432  0.595  1.0
  O  O16  1  0.432  0.685  0.095  1.0
  O  O17  1  0.315  0.568  0.405  1.0
  O  O18  1  0.717  0.926  0.065  1.0
  O  O19  1  0.074  0.283  0.435  1.0
  O  O20  1  0.159  0.452  0.136  1.0
  O  O21  1  0.548  0.841  0.364  1.0
  O  O22  1  0.841  0.548  0.864  1.0
  O  O23  1  0.452  0.159  0.636  1.0
  O  O24  1  0.926  0.717  0.565  1.0
  O  O25  1  0.283  0.074  0.935  1.0
[/CIF]
.
The structure described by Nb2VZn2O8 crystallizes in the monoclinic C2/c space group. Nb(1) is bonded to one O(2), one O(4), two equivalent O(1), and two equivalent O(3) atoms to form distorted NbO6 octahedra that share corners with four equivalent V(1)O6 octahedra and edges with two equivalent Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-55°. V(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form VO6 octahedra that share corners with eight equivalent Nb(1)O6 octahedra and edges with two equivalent V(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-55°. Zn(1) is bonded in a distorted see-saw-like geometry to one O(3) and three equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to two equivalent Nb(1) and one V(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Nb(1) and two equivalent V(1) atoms. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Nb(1) and one Zn(1) atom. In the fourth O site, O(4) is bonded to one Nb(1) and three equivalent Zn(1) atoms to form a mixture of corner and edge-sharing ONbZn3 trigonal pyramids. is represented by the CIF card [CIF]
data_Nb2VZn2O8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.208
_cell_length_b   10.208
_cell_length_c   5.313
_cell_angle_alpha   89.677
_cell_angle_beta   89.677
_cell_angle_gamma   33.962
_symmetry_Int_Tables_number   1
_cell_volume   309.295
_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
  Nb  Nb0  1  0.725  0.043  0.765  1.0
  Nb  Nb1  1  0.957  0.275  0.735  1.0
  Nb  Nb2  1  0.275  0.957  0.235  1.0
  Nb  Nb3  1  0.043  0.725  0.265  1.0
  V  V4  1  0.353  0.647  0.750  1.0
  V  V5  1  0.647  0.353  0.250  1.0
  Zn  Zn6  1  0.565  0.873  0.732  1.0
  Zn  Zn7  1  0.127  0.435  0.768  1.0
  Zn  Zn8  1  0.435  0.127  0.268  1.0
  Zn  Zn9  1  0.873  0.565  0.232  1.0
  O  O10  1  0.814  0.045  0.427  1.0
  O  O11  1  0.955  0.186  0.073  1.0
  O  O12  1  0.186  0.955  0.573  1.0
  O  O13  1  0.045  0.814  0.927  1.0
  O  O14  1  0.568  0.315  0.905  1.0
  O  O15  1  0.685  0.432  0.595  1.0
  O  O16  1  0.432  0.685  0.095  1.0
  O  O17  1  0.315  0.568  0.405  1.0
  O  O18  1  0.717  0.926  0.065  1.0
  O  O19  1  0.074  0.283  0.435  1.0
  O  O20  1  0.159  0.452  0.136  1.0
  O  O21  1  0.548  0.841  0.364  1.0
  O  O22  1  0.841  0.548  0.864  1.0
  O  O23  1  0.452  0.159  0.636  1.0
  O  O24  1  0.926  0.717  0.565  1.0
  O  O25  1  0.283  0.074  0.935  1.0
[/CIF]
.