data_TaCrGa2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.31
_cell_length_b   3.31
_cell_length_c   5.6
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TaCrGa2
_chemical_formula_sum   'Ta1 Cr1 Ga2'
_cell_volume   61.43
_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
  Ta  Ta3  1  0.66  0.66  0.93  1.0
  Cr  Cr0  1  0.0  0.0  0.14  1.0
  Ga  Ga1  1  0.66  0.66  0.0  1.0
  Ga  Ga2  1  0.0  0.0  0.33  1.0

data_TaCrGa2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.68
_cell_length_b   4.68
_cell_length_c   5.6
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   TaCrGa2
_chemical_formula_sum   'Ta2 Cr2 Ga4'
_cell_volume   122.85
_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
  Ta  Ta0  2  0.16  0.5  0.93  1.0
  Cr  Cr1  2  0.0  0.0  0.14  1.0
  Ga  Ga2  2  0.0  0.0  0.33  1.0
  Ga  Ga3  2  0.16  0.5  0.0  1.0

Ta Cr Ga Ga
TaCrGa2 crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two TaCrGa2 clusters. Ta(1) is bonded in a single-bond geometry to one Ga(1) atom. The Ta(1)-Ga(1) bond length is 0.39 Å. Cr(1) is bonded in a 2-coordinate geometry to one Ga(1) and one Ga(2) atom. The Cr(1)-Ga(1) bond length is 1.80 Å. The Cr(1)-Ga(2) bond length is 1.04 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a single-bond geometry to one Ta(1) and one Cr(1) atom. In the second Ga site, Ga(2) is bonded in a single-bond geometry to one Cr(1) atom.