data_GaCuSb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.15
_cell_length_b   5.15
_cell_length_c   5.15
_cell_angle_alpha   126.07
_cell_angle_beta   126.07
_cell_angle_gamma   79.77
_symmetry_Int_Tables_number   1
_chemical_formula_structural   GaCuSb2
_chemical_formula_sum   'Ga1 Cu1 Sb2'
_cell_volume   86.03
_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
  Ga  Ga1  1  0.0  0.0  0.95  1.0
  Cu  Cu0  1  0.0  0.0  0.0  1.0
  Sb  Sb2  1  0.0  0.33  0.97  1.0
  Sb  Sb3  1  0.33  0.0  0.97  1.0

data_GaCuSb2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.6
_cell_length_b   6.6
_cell_length_c   5.15
_cell_angle_alpha   90.0
_cell_angle_beta   129.88
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   GaCuSb2
_chemical_formula_sum   'Ga2 Cu2 Sb4'
_cell_volume   172.07
_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
  Ga  Ga0  2  0.05  0.0  0.05  1.0
  Cu  Cu1  2  0.0  0.0  0.0  1.0
  Sb  Sb2  4  0.19  0.17  0.36  1.0

Ga Cu Sb Sb
CuGaSb2 is Copper structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two CuGaSb2 clusters. Cu(1) is bonded in a single-bond geometry to one Ga(1) atom. The Cu(1)-Ga(1) bond length is 0.26 Å. Ga(1) is bonded in a distorted single-bond geometry to one Cu(1) and two equivalent Sb(1) atoms. Both Ga(1)-Sb(1) bond lengths are 1.64 Å. Sb(1) is bonded in a single-bond geometry to one Ga(1) atom.