data_SrGaAs2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.54
_cell_length_b   5.54
_cell_length_c   5.54
_cell_angle_alpha   131.74
_cell_angle_beta   131.74
_cell_angle_gamma   70.64
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrGaAs2
_chemical_formula_sum   'Sr1 Ga1 As2'
_cell_volume   92.99
_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  Sr3  1  0.0  0.0  0.52  1.0
  Ga  Ga2  1  0.0  0.0  0.0  1.0
  As  As0  1  0.0  0.27  0.26  1.0
  As  As1  1  0.27  0.0  0.26  1.0

data_SrGaAs2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.41
_cell_length_b   6.41
_cell_length_c   5.54
_cell_angle_alpha   90.0
_cell_angle_beta   125.32
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrGaAs2
_chemical_formula_sum   'Sr2 Ga2 As4'
_cell_volume   185.97
_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  0.48  0.0  0.48  1.0
  Ga  Ga1  2  0.0  0.0  0.0  1.0
  As  As2  4  0.37  0.37  0.0  1.0

Sr Ga As As
SrGaAs2 crystallizes in the monoclinic Cm space group. Sr(1) is bonded in a 5-coordinate geometry to one Ga(1) and four equivalent As(1) atoms. The Sr(1)-Ga(1) bond length is 2.64 Å. There are two shorter (2.68 Å) and two longer (3.28 Å) Sr(1)-As(1) bond lengths. Ga(1) is bonded in a distorted L-shaped geometry to one Sr(1) and two equivalent As(1) atoms. Both Ga(1)-As(1) bond lengths are 1.20 Å. As(1) is bonded in a distorted single-bond geometry to two equivalent Sr(1) and one Ga(1) atom.