data_VNi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.38
_cell_length_b   2.53
_cell_length_c   6.29
_cell_angle_alpha   90.0
_cell_angle_beta   91.3
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   VNi2
_chemical_formula_sum   'V2 Ni4'
_cell_volume   69.74
_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
  V  V4  1  0.59  0.63  0.97  1.0
  V  V5  1  0.64  0.9  0.32  1.0
  Ni  Ni0  1  0.07  0.63  0.08  1.0
  Ni  Ni1  1  0.38  0.9  0.19  1.0
  Ni  Ni2  1  0.85  0.63  0.1  1.0
  Ni  Ni3  1  0.16  0.9  0.21  1.0

data_VNi2
_symmetry_space_group_name_H-M   P-1
_cell_length_a   2.53
_cell_length_b   4.38
_cell_length_c   6.29
_cell_angle_alpha   91.3
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   VNi2
_chemical_formula_sum   'V2 Ni4'
_cell_volume   69.74
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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
  V  V0  2  0.13  0.03  0.67  1.0
  Ni  Ni1  2  0.13  0.55  0.57  1.0
  Ni  Ni2  2  0.13  0.77  0.54  1.0

V V Ni Ni Ni Ni
V V Ni Ni Ni Ni 0 4 o o + 1 3 o o o 2 4 - o o 2 5 o o o 3 5 o o o 