data_Sr(InPt)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.16
_cell_length_b   6.16
_cell_length_c   6.16
_cell_angle_alpha   132.78
_cell_angle_beta   132.78
_cell_angle_gamma   69.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr(InPt)2
_chemical_formula_sum   'Sr1 In2 Pt2'
_cell_volume   123.58
_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  Sr4  1  0.0  0.0  0.0  1.0
  In  In0  1  0.0  0.0  0.53  1.0
  In  In1  1  0.0  0.0  0.63  1.0
  Pt  Pt2  1  0.0  0.47  0.54  1.0
  Pt  Pt3  1  0.47  0.0  0.54  1.0

data_Sr(InPt)2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.98
_cell_length_b   6.98
_cell_length_c   6.16
_cell_angle_alpha   90.0
_cell_angle_beta   124.5
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Sr(InPt)2
_chemical_formula_sum   'Sr2 In4 Pt4'
_cell_volume   247.17
_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
  In  In1  2  0.0  0.0  0.53  1.0
  In  In2  2  0.0  0.0  0.63  1.0
  Pt  Pt3  4  0.27  0.27  0.07  1.0

Sr In In Pt Pt
Sr In In Pt Pt 0 4 - o - 0 4 o o o 0 3 o o o 0 3 o - - 0 2 o o - 1 2 o o o 1 3 o o o 1 4 o o o 2 3 o - o 2 4 - o o 
Sr(PtIn)2 crystallizes in the monoclinic Cm space group. Sr(1) is bonded in a 5-coordinate geometry to four equivalent Pt(1), one In(1), and one In(2) atom. There are two shorter (2.49 Å) and two longer (2.51 Å) Sr(1)-Pt(1) bond lengths. The Sr(1)-In(1) bond length is 3.24 Å. The Sr(1)-In(2) bond length is 2.30 Å. Pt(1) is bonded in a 4-coordinate geometry to two equivalent Sr(1), one In(1), and one In(2) atom. The Pt(1)-In(1) bond length is 2.82 Å. The Pt(1)-In(2) bond length is 2.94 Å. There are two inequivalent In sites. In the first In site, In(1) is bonded in a 4-coordinate geometry to one Sr(1), two equivalent Pt(1), and one In(2) atom. The In(1)-In(2) bond length is 0.63 Å. In the second In site, In(2) is bonded in a distorted linear geometry to one Sr(1), two equivalent Pt(1), and one In(1) atom.