data_HfAgSb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.95
_cell_length_b   3.95
_cell_length_c   5.98
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HfAgSb2
_chemical_formula_sum   'Hf1 Ag1 Sb2'
_cell_volume   93.09
_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
  Hf  Hf1  1  0.97  0.97  0.68  1.0
  Ag  Ag0  1  0.0  0.0  0.81  1.0
  Sb  Sb2  1  0.0  0.0  0.63  1.0
  Sb  Sb3  1  0.97  0.97  0.82  1.0

data_HfAgSb2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.58
_cell_length_b   5.58
_cell_length_c   5.98
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   HfAgSb2
_chemical_formula_sum   'Hf2 Ag2 Sb4'
_cell_volume   186.18
_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
  Hf  Hf0  2  0.47  0.5  0.68  1.0
  Ag  Ag1  2  0.0  0.0  0.81  1.0
  Sb  Sb2  2  0.0  0.0  0.63  1.0
  Sb  Sb3  2  0.47  0.5  0.82  1.0

Hf Ag Sb Sb
HfAgSb2 crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two HfAgSb2 clusters. Hf(1) is bonded in a bent 150 degrees geometry to one Ag(1) and one Sb(1) atom. The Hf(1)-Ag(1) bond length is 0.74 Å. The Hf(1)-Sb(1) bond length is 0.36 Å. Ag(1) is bonded in a bent 120 degrees geometry to one Hf(1) and one Sb(2) atom. The Ag(1)-Sb(2) bond length is 0.19 Å. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a single-bond geometry to one Hf(1) atom. In the second Sb site, Sb(2) is bonded in a single-bond geometry to one Ag(1) atom.