data_SrCuSb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.73
_cell_length_b   4.73
_cell_length_c   4.58
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrCuSb2
_chemical_formula_sum   'Sr1 Cu1 Sb2'
_cell_volume   102.69
_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  0.37  0.37  0.0  1.0
  Cu  Cu0  1  0.0  0.0  0.0  1.0
  Sb  Sb1  1  0.0  0.37  0.29  1.0
  Sb  Sb2  1  0.37  0.0  0.29  1.0

data_SrCuSb2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.69
_cell_length_b   6.69
_cell_length_c   4.58
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrCuSb2
_chemical_formula_sum   'Sr2 Cu2 Sb4'
_cell_volume   205.38
_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  0.37  0.0  0.0  1.0
  Cu  Cu1  2  0.0  0.0  0.0  1.0
  Sb  Sb2  4  0.18  0.18  0.29  1.0

Sr Cu Sb Sb
Sr Cu Sb Sb 0 1 o o o 0 2 o o o 0 3 o o o 1 3 o o o 1 2 o o o 2 3 o o o 
SrCuSb2 crystallizes in the monoclinic Cm space group. Sr(1) is bonded in a 9-coordinate geometry to three equivalent Cu(1) and six equivalent Sb(1) atoms. There is one shorter (2.45 Å) and two longer (3.46 Å) Sr(1)-Cu(1) bond lengths. There are a spread of Sr(1)-Sb(1) bond distances ranging from 2.19-3.68 Å. Cu(1) is bonded in a 3-coordinate geometry to three equivalent Sr(1) and two equivalent Sb(1) atoms. Both Cu(1)-Sb(1) bond lengths are 2.19 Å. Sb(1) is bonded in a 1-coordinate geometry to three equivalent Sr(1) and one Cu(1) atom.