The material structure described by HfVSi is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. Hf(1) is bonded in a 5-coordinate geometry to four equivalent V(1) and five equivalent Si(1) atoms. V(1) is bonded in a 12-coordinate geometry to four equivalent Hf(1), four equivalent V(1), and four equivalent Si(1) atoms. Si(1) is bonded in a 9-coordinate geometry to five equivalent Hf(1) and four equivalent V(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_HfVSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.647
_cell_length_b   3.647
_cell_length_c   7.139
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   94.978
_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
  Hf  Hf0  1  0.750  0.750  0.360  1.0
  Hf  Hf1  1  0.250  0.250  0.640  1.0
  V  V2  1  0.750  0.250  0.000  1.0
  V  V3  1  0.250  0.750  0.000  1.0
  Si  Si4  1  0.750  0.750  0.753  1.0
  Si  Si5  1  0.250  0.250  0.247  1.0
[/CIF]
.
The material structure described by HfVSi is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. Hf(1) is bonded in a 5-coordinate geometry to four equivalent V(1) and five equivalent Si(1) atoms. V(1) is bonded in a 12-coordinate geometry to four equivalent Hf(1), four equivalent V(1), and four equivalent Si(1) atoms. Si(1) is bonded in a 9-coordinate geometry to five equivalent Hf(1) and four equivalent V(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_HfVSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.647
_cell_length_b   3.647
_cell_length_c   7.139
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   94.978
_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
  Hf  Hf0  1  0.750  0.750  0.360  1.0
  Hf  Hf1  1  0.250  0.250  0.640  1.0
  V  V2  1  0.750  0.250  0.000  1.0
  V  V3  1  0.250  0.750  0.000  1.0
  Si  Si4  1  0.750  0.750  0.753  1.0
  Si  Si5  1  0.250  0.250  0.247  1.0
[/CIF]
.