data_Ga2SnAs
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.74
_cell_length_b   5.74
_cell_length_c   3.01
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   117.66
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ga2SnAs
_chemical_formula_sum   'Ga2 Sn1 As1'
_cell_volume   87.64
_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  0.48  0.45  0.5  1.0
  Ga  Ga2  1  0.48  0.55  0.5  1.0
  Sn  Sn3  1  0.97  0.0  0.0  1.0
  As  As0  1  0.0  0.0  0.0  1.0

data_Ga2SnAs
_symmetry_space_group_name_H-M   Pm
_cell_length_a   5.74
_cell_length_b   3.01
_cell_length_c   5.74
_cell_angle_alpha   90.0
_cell_angle_beta   117.66
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   6
_chemical_formula_structural   Ga2SnAs
_chemical_formula_sum   'Ga2 Sn1 As1'
_cell_volume   87.64
_cell_formula_units_Z   1
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
  Ga  Ga0  1  0.48  0.5  0.45  1.0
  Ga  Ga1  1  0.48  0.5  0.55  1.0
  Sn  Sn2  1  0.97  0.0  0.0  1.0
  As  As3  1  0.0  0.0  0.0  1.0

Ga Ga Sn As
Ga Ga Sn As 0 1 o o o 2 3 + o o 
(Ga)2SnAs is alpha oxygen-derived structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one arsenic;tin molecule and one digallane molecule.