data_V2ZnSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.57
_cell_length_b   2.57
_cell_length_c   8.31
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   V2ZnSi
_chemical_formula_sum   'V2 Zn1 Si1'
_cell_volume   54.96
_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
  V  V1  1  0.29  0.29  0.2  1.0
  V  V2  1  0.0  0.0  0.07  1.0
  Zn  Zn3  1  0.29  0.29  0.15  1.0
  Si  Si0  1  0.0  0.0  0.35  1.0

data_V2ZnSi
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.64
_cell_length_b   3.64
_cell_length_c   8.31
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   V2ZnSi
_chemical_formula_sum   'V4 Zn2 Si2'
_cell_volume   109.92
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  0.0  0.0  0.07  1.0
  V  V1  2  0.29  0.0  0.2  1.0
  Zn  Zn2  2  0.29  0.0  0.15  1.0
  Si  Si3  2  0.0  0.0  0.35  1.0

V V Zn Si
V V Zn Si 0 2 o o o 0 3 o o o 1 2 o o o 
V2ZnSi crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two V2ZnSi clusters. There are two inequivalent V sites. In the first V site, V(1) is bonded in a distorted single-bond geometry to one Zn(1) and one Si(1) atom. The V(1)-Zn(1) bond length is 0.44 Å. The V(1)-Si(1) bond length is 1.59 Å. In the second V site, V(2) is bonded in a distorted single-bond geometry to one Zn(1) atom. The V(2)-Zn(1) bond length is 1.23 Å. Zn(1) is bonded in a distorted single-bond geometry to one V(1) and one V(2) atom. Si(1) is bonded in a distorted single-bond geometry to one V(1) atom.