data_K2Ga
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.44
_cell_length_b   9.44
_cell_length_c   6.3
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   153.02
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2Ga
_chemical_formula_sum   'K4 Ga2'
_cell_volume   254.79
_cell_formula_units_Z   2
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
  K  K2  1  0.2  0.79  0.73  1.0
  K  K3  1  0.2  0.32  0.73  1.0
  K  K4  1  0.2  0.68  0.58  1.0
  K  K5  1  0.2  0.21  0.58  1.0
  Ga  Ga0  1  0.2  0.0  0.73  1.0
  Ga  Ga1  1  0.2  1.0  0.58  1.0

data_K2Ga
_symmetry_space_group_name_H-M   P-1
_cell_length_a   4.4
_cell_length_b   6.3
_cell_length_c   9.44
_cell_angle_alpha   90.0
_cell_angle_beta   103.49
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   K2Ga
_chemical_formula_sum   'K4 Ga2'
_cell_volume   254.79
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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
  K  K0  2  0.21  0.08  0.71  1.0
  K  K1  2  0.32  0.92  0.82  1.0
  Ga  Ga2  2  0.0  0.92  0.5  1.0

K K K K Ga Ga
K2Ga crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of one K2Ga cluster. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 3-coordinate geometry to one K(2) and two equivalent Ga(1) atoms. The K(1)-K(2) bond length is 1.43 Å. There is one shorter (2.01 Å) and one longer (2.15 Å) K(1)-Ga(1) bond length. In the second K site, K(2) is bonded in a single-bond geometry to one K(1) atom. Ga(1) is bonded in a 3-coordinate geometry to two equivalent K(1) and one Ga(1) atom. The Ga(1)-Ga(1) bond length is 0.95 Å.