data_HfCrGa2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.16
_cell_length_b   3.16
_cell_length_c   6.7
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HfCrGa2
_chemical_formula_sum   'Hf1 Cr1 Ga2'
_cell_volume   67.07
_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  Hf3  1  0.58  0.58  0.49  1.0
  Cr  Cr0  1  0.0  0.0  0.23  1.0
  Ga  Ga1  1  0.58  0.58  0.54  1.0
  Ga  Ga2  1  0.0  0.0  0.49  1.0

data_HfCrGa2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.47
_cell_length_b   4.47
_cell_length_c   6.7
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   HfCrGa2
_chemical_formula_sum   'Hf2 Cr2 Ga4'
_cell_volume   134.13
_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  0.08  0.5  0.49  1.0
  Cr  Cr1  2  0.0  0.0  0.23  1.0
  Ga  Ga2  2  0.0  0.0  0.49  1.0
  Ga  Ga3  2  0.08  0.5  0.54  1.0

Hf Cr Ga Ga
HfCrGa2 crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two HfCrGa2 clusters. Hf(1) is bonded in a single-bond geometry to one Ga(1) and one Ga(2) atom. The Hf(1)-Ga(1) bond length is 0.38 Å. The Hf(1)-Ga(2) bond length is 1.87 Å. Cr(1) is bonded in a single-bond geometry to one Ga(2) atom. The Cr(1)-Ga(2) bond length is 1.75 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a single-bond geometry to one Hf(1) atom. In the second Ga site, Ga(2) is bonded in a 2-coordinate geometry to one Hf(1) and one Cr(1) atom.