data_Hf2CoSn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.3
_cell_length_b   8.3
_cell_length_c   8.3
_cell_angle_alpha   23.9
_cell_angle_beta   23.9
_cell_angle_gamma   23.9
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Hf2CoSn
_chemical_formula_sum   'Hf2 Co1 Sn1'
_cell_volume   82.5
_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  0.0  0.0  0.53  1.0
  Hf  Hf2  1  0.0  0.0  0.66  1.0
  Co  Co0  1  0.0  0.0  0.0  1.0
  Sn  Sn3  1  0.0  0.0  0.09  1.0

data_Hf2CoSn
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.95
_cell_length_b   3.44
_cell_length_c   8.3
_cell_angle_alpha   90.0
_cell_angle_beta   103.83
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Hf2CoSn
_chemical_formula_sum   'Hf4 Co2 Sn2'
_cell_volume   164.99
_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  0.0  0.0  0.34  1.0
  Hf  Hf1  2  0.0  0.0  0.47  1.0
  Co  Co2  2  0.0  0.0  0.0  1.0
  Sn  Sn3  2  0.0  0.0  0.91  1.0

Hf Hf Co Sn
Hf2CoSn crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Hf2CoSn clusters. There are two inequivalent Hf sites. In the first Hf site, Hf(1) is bonded in a distorted single-bond geometry to one Hf(2) atom. The Hf(1)-Hf(2) bond length is 1.09 Å. In the second Hf site, Hf(2) is bonded in a distorted linear geometry to one Hf(1) and one Co(1) atom. The Hf(2)-Co(1) bond length is 2.85 Å. Co(1) is bonded in a distorted single-bond geometry to one Hf(2) and one Sn(1) atom. The Co(1)-Sn(1) bond length is 0.76 Å. Sn(1) is bonded in a single-bond geometry to one Co(1) atom.