data_HfGaCo4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.31
_cell_length_b   3.31
_cell_length_c   7.99
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HfGaCo4
_chemical_formula_sum   'Hf1 Ga1 Co4'
_cell_volume   87.49
_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  Hf5  1  0.0  0.0  0.99  1.0
  Ga  Ga4  1  0.0  0.0  0.0  1.0
  Co  Co0  1  0.0  0.65  0.08  1.0
  Co  Co1  1  0.65  0.0  0.08  1.0
  Co  Co2  1  0.0  0.65  0.91  1.0
  Co  Co3  1  0.65  0.0  0.91  1.0

data_HfGaCo4
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.68
_cell_length_b   4.68
_cell_length_c   7.99
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   HfGaCo4
_chemical_formula_sum   'Hf2 Ga2 Co8'
_cell_volume   174.98
_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  0.99  1.0
  Ga  Ga1  2  0.0  0.0  0.0  1.0
  Co  Co2  4  0.33  0.33  0.08  1.0
  Co  Co3  4  0.33  0.33  0.91  1.0

Hf Ga Co Co Co Co
HfCo4Ga crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two HfCo4Ga clusters. Hf(1) is bonded in a single-bond geometry to two equivalent Co(2) and one Ga(1) atom. Both Hf(1)-Co(2) bond lengths are 1.32 Å. The Hf(1)-Ga(1) bond length is 0.05 Å. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 2-coordinate geometry to one Co(2) and one Ga(1) atom. The Co(1)-Co(2) bond length is 1.32 Å. The Co(1)-Ga(1) bond length is 1.29 Å. In the second Co site, Co(2) is bonded in a distorted single-bond geometry to one Hf(1) and one Co(1) atom. Ga(1) is bonded in a single-bond geometry to one Hf(1) and two equivalent Co(1) atoms.