data_SrZn2Bi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.7
_cell_length_b   4.7
_cell_length_c   4.79
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrZn2Bi
_chemical_formula_sum   'Sr1 Zn2 Bi1'
_cell_volume   105.94
_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  0.0  1.0
  Zn  Zn2  1  0.0  0.35  0.4  1.0
  Zn  Zn3  1  0.35  0.0  0.4  1.0
  Bi  Bi0  1  0.35  0.35  0.0  1.0

data_SrZn2Bi
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.65
_cell_length_b   6.65
_cell_length_c   4.79
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrZn2Bi
_chemical_formula_sum   'Sr2 Zn4 Bi2'
_cell_volume   211.88
_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  0.0  1.0
  Zn  Zn1  4  0.18  0.18  0.4  1.0
  Bi  Bi2  2  0.35  0.0  -0.0  1.0

Sr Zn Zn Bi
SrZn2Bi crystallizes in the monoclinic Cm space group. Sr(1) is bonded in a 3-coordinate geometry to six equivalent Zn(1) and one Bi(1) atom. There are a spread of Sr(1)-Zn(1) bond distances ranging from 2.52-3.60 Å. The Sr(1)-Bi(1) bond length is 2.33 Å. Zn(1) is bonded in a 6-coordinate geometry to three equivalent Sr(1), one Zn(1), and two equivalent Bi(1) atoms. The Zn(1)-Zn(1) bond length is 2.33 Å. There is one shorter (2.52 Å) and one longer (3.33 Å) Zn(1)-Bi(1) bond length. Bi(1) is bonded in a 1-coordinate geometry to one Sr(1) and four equivalent Zn(1) atoms.