data_Ba2SrPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.98
_cell_length_b   6.98
_cell_length_c   6.98
_cell_angle_alpha   138.31
_cell_angle_beta   138.31
_cell_angle_gamma   60.43
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ba2SrPt
_chemical_formula_sum   'Ba2 Sr1 Pt1'
_cell_volume   148.94
_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
  Ba  Ba0  1  0.48  0.0  0.02  1.0
  Ba  Ba1  1  0.0  0.0  0.03  1.0
  Sr  Sr3  1  0.0  0.0  0.0  1.0
  Pt  Pt2  1  0.0  0.48  0.02  1.0

data_Ba2SrPt
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.97
_cell_length_b   4.97
_cell_length_c   6.98
_cell_angle_alpha   110.85
_cell_angle_beta   110.85
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ba2SrPt
_chemical_formula_sum   'Ba2 Sr1 Pt1'
_cell_volume   148.94
_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
  Ba  Ba0  1  0.02  0.53  0.53  1.0
  Ba  Ba1  1  0.03  0.03  0.03  1.0
  Sr  Sr2  1  0.0  0.0  0.0  1.0
  Pt  Pt3  1  0.53  0.02  0.53  1.0

Ba Ba Sr Pt
Ba2SrPt crystallizes in the triclinic P1 space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 6-coordinate geometry to one Ba(2), one Sr(1), and four equivalent Pt(1) atoms. The Ba(1)-Ba(2) bond length is 3.51 Å. The Ba(1)-Sr(1) bond length is 3.30 Å. There are a spread of Ba(1)-Pt(1) bond distances ranging from 3.40-3.62 Å. In the second Ba site, Ba(2) is bonded in a distorted single-bond geometry to one Ba(1), one Sr(1), and one Pt(1) atom. The Ba(2)-Sr(1) bond length is 0.23 Å. The Ba(2)-Pt(1) bond length is 3.51 Å. Sr(1) is bonded in a distorted single-bond geometry to one Ba(1), one Ba(2), and one Pt(1) atom. The Sr(1)-Pt(1) bond length is 3.30 Å. Pt(1) is bonded to one Ba(2), four equivalent Ba(1), and one Sr(1) atom to form a mixture of edge and corner-sharing PtBa5Sr octahedra. The corner-sharing octahedral tilt angles range from 0-4°.