data_SrBiAs2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.3
_cell_length_b   6.3
_cell_length_c   6.3
_cell_angle_alpha   139.19
_cell_angle_beta   139.19
_cell_angle_gamma   59.09
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrBiAs2
_chemical_formula_sum   'Sr1 Bi1 As2'
_cell_volume   105.79
_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  0.48  1.0
  Bi  Bi2  1  0.2  0.0  0.74  1.0
  As  As0  1  0.0  0.2  0.74  1.0
  As  As1  1  0.0  0.0  0.0  1.0

data_SrBiAs2
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.39
_cell_length_b   4.39
_cell_length_c   6.3
_cell_angle_alpha   110.41
_cell_angle_beta   110.41
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrBiAs2
_chemical_formula_sum   'Sr1 Bi1 As2'
_cell_volume   105.79
_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  Sr0  1  0.48  0.48  0.48  1.0
  Bi  Bi1  1  0.74  0.54  0.54  1.0
  As  As2  1  0.0  0.0  0.0  1.0
  As  As3  1  0.54  0.74  0.54  1.0

Sr Bi As As
Sr Bi As As 0 2 o o o 0 1 o o o 0 3 o o + 0 3 o o o 1 2 o o o 1 3 o o + 2 3 o o + 
SrBiAs2 crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one SrBiAs2 cluster. Sr(1) is bonded in a 2-coordinate geometry to one Bi(1), one As(1), and one As(2) atom. The Sr(1)-Bi(1) bond length is 1.07 Å. The Sr(1)-As(1) bond length is 1.07 Å. The Sr(1)-As(2) bond length is 3.03 Å. Bi(1) is bonded in a distorted single-bond geometry to one Sr(1) atom. There are two inequivalent As sites. In the first As site, As(1) is bonded in a distorted single-bond geometry to one Sr(1) atom. In the second As site, As(2) is bonded in a 1-coordinate geometry to one Sr(1) atom.