data_Sr2ZnGa
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.19
_cell_length_b   4.19
_cell_length_c   7.55
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2ZnGa
_chemical_formula_sum   'Sr2 Zn1 Ga1'
_cell_volume   132.51
_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
  Sr  Sr1  1  0.0  0.0  0.02  1.0
  Sr  Sr2  1  0.09  0.09  0.42  1.0
  Zn  Zn3  1  0.0  0.0  0.83  1.0
  Ga  Ga0  1  0.09  0.09  0.6  1.0

data_Sr2ZnGa
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.92
_cell_length_b   5.92
_cell_length_c   7.55
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Sr2ZnGa
_chemical_formula_sum   'Sr4 Zn2 Ga2'
_cell_volume   265.03
_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
  Sr  Sr0  2  0.0  0.0  0.02  1.0
  Sr  Sr1  2  0.09  0.0  0.42  1.0
  Zn  Zn2  2  0.0  0.0  0.83  1.0
  Ga  Ga3  2  0.09  0.0  0.6  1.0

Sr Sr Zn Ga
Sr2ZnGa crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Sr2ZnGa clusters. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a single-bond geometry to one Zn(1) atom. The Sr(1)-Zn(1) bond length is 1.45 Å. In the second Sr site, Sr(2) is bonded in a single-bond geometry to one Ga(1) atom. The Sr(2)-Ga(1) bond length is 1.35 Å. Zn(1) is bonded in a distorted bent 150 degrees geometry to one Sr(1) and one Ga(1) atom. The Zn(1)-Ga(1) bond length is 1.83 Å. Ga(1) is bonded in a distorted bent 150 degrees geometry to one Sr(2) and one Zn(1) atom.