The structure described by HfSb2 crystallizes in the orthorhombic Pnnm space group. There are two inequivalent Hf sites. In the first Hf site, Hf(1) is bonded in a 9-coordinate geometry to one Sb(3), two equivalent Sb(1), three equivalent Sb(2), and three equivalent Sb(4) atoms. In the second Hf site, Hf(2) is bonded in a 8-coordinate geometry to one Sb(2), one Sb(4), two equivalent Sb(3), and four equivalent Sb(1) atoms. There are four inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 6-coordinate geometry to two equivalent Hf(1) and four equivalent Hf(2) atoms. In the second Sb site, Sb(2) is bonded in a 4-coordinate geometry to one Hf(2), three equivalent Hf(1), and two equivalent Sb(3) atoms. In the third Sb site, Sb(3) is bonded in a 6-coordinate geometry to one Hf(1), two equivalent Hf(2), one Sb(3), and two equivalent Sb(2) atoms. In the fourth Sb site, Sb(4) is bonded in a 3-coordinate geometry to one Hf(2) and three equivalent Hf(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_HfSb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.899
_cell_length_b   9.926
_cell_length_c   15.031
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   581.761
_cell_formula_units_Z   8
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  0.500  0.522  0.251  1.0
  Hf  Hf1  1  0.500  0.478  0.749  1.0
  Hf  Hf2  1  0.000  0.022  0.249  1.0
  Hf  Hf3  1  0.000  0.978  0.751  1.0
  Hf  Hf4  1  0.000  0.833  0.493  1.0
  Hf  Hf5  1  0.000  0.167  0.507  1.0
  Hf  Hf6  1  0.500  0.333  0.007  1.0
  Hf  Hf7  1  0.500  0.667  0.993  1.0
  Sb  Sb8  1  0.000  0.513  0.104  1.0
  Sb  Sb9  1  0.000  0.487  0.896  1.0
  Sb  Sb10  1  0.500  0.013  0.396  1.0
  Sb  Sb11  1  0.500  0.987  0.604  1.0
  Sb  Sb12  1  0.000  0.732  0.302  1.0
  Sb  Sb13  1  0.000  0.268  0.698  1.0
  Sb  Sb14  1  0.500  0.232  0.198  1.0
  Sb  Sb15  1  0.500  0.768  0.802  1.0
  Sb  Sb16  1  0.000  0.882  0.942  1.0
  Sb  Sb17  1  0.000  0.118  0.058  1.0
  Sb  Sb18  1  0.500  0.382  0.558  1.0
  Sb  Sb19  1  0.500  0.618  0.442  1.0
  Sb  Sb20  1  0.000  0.661  0.657  1.0
  Sb  Sb21  1  0.000  0.339  0.343  1.0
  Sb  Sb22  1  0.500  0.161  0.843  1.0
  Sb  Sb23  1  0.500  0.839  0.157  1.0
[/CIF]
.
The structure described by HfSb2 crystallizes in the orthorhombic Pnnm space group. There are two inequivalent Hf sites. In the first Hf site, Hf(1) is bonded in a 9-coordinate geometry to one Sb(3), two equivalent Sb(1), three equivalent Sb(2), and three equivalent Sb(4) atoms. In the second Hf site, Hf(2) is bonded in a 8-coordinate geometry to one Sb(2), one Sb(4), two equivalent Sb(3), and four equivalent Sb(1) atoms. There are four inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 6-coordinate geometry to two equivalent Hf(1) and four equivalent Hf(2) atoms. In the second Sb site, Sb(2) is bonded in a 4-coordinate geometry to one Hf(2), three equivalent Hf(1), and two equivalent Sb(3) atoms. In the third Sb site, Sb(3) is bonded in a 6-coordinate geometry to one Hf(1), two equivalent Hf(2), one Sb(3), and two equivalent Sb(2) atoms. In the fourth Sb site, Sb(4) is bonded in a 3-coordinate geometry to one Hf(2) and three equivalent Hf(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_HfSb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.899
_cell_length_b   9.926
_cell_length_c   15.031
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   581.761
_cell_formula_units_Z   8
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  0.500  0.522  0.251  1.0
  Hf  Hf1  1  0.500  0.478  0.749  1.0
  Hf  Hf2  1  0.000  0.022  0.249  1.0
  Hf  Hf3  1  0.000  0.978  0.751  1.0
  Hf  Hf4  1  0.000  0.833  0.493  1.0
  Hf  Hf5  1  0.000  0.167  0.507  1.0
  Hf  Hf6  1  0.500  0.333  0.007  1.0
  Hf  Hf7  1  0.500  0.667  0.993  1.0
  Sb  Sb8  1  0.000  0.513  0.104  1.0
  Sb  Sb9  1  0.000  0.487  0.896  1.0
  Sb  Sb10  1  0.500  0.013  0.396  1.0
  Sb  Sb11  1  0.500  0.987  0.604  1.0
  Sb  Sb12  1  0.000  0.732  0.302  1.0
  Sb  Sb13  1  0.000  0.268  0.698  1.0
  Sb  Sb14  1  0.500  0.232  0.198  1.0
  Sb  Sb15  1  0.500  0.768  0.802  1.0
  Sb  Sb16  1  0.000  0.882  0.942  1.0
  Sb  Sb17  1  0.000  0.118  0.058  1.0
  Sb  Sb18  1  0.500  0.382  0.558  1.0
  Sb  Sb19  1  0.500  0.618  0.442  1.0
  Sb  Sb20  1  0.000  0.661  0.657  1.0
  Sb  Sb21  1  0.000  0.339  0.343  1.0
  Sb  Sb22  1  0.500  0.161  0.843  1.0
  Sb  Sb23  1  0.500  0.839  0.157  1.0
[/CIF]
.