data_SrY2Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.6
_cell_length_b   3.6
_cell_length_c   9.71
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrY2Pt
_chemical_formula_sum   'Sr1 Y2 Pt1'
_cell_volume   125.71
_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
  Y  Y2  1  0.8  0.8  0.23  1.0
  Y  Y3  1  0.8  0.8  0.48  1.0
  Pt  Pt0  1  0.0  0.0  0.86  1.0

data_SrY2Pt
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.09
_cell_length_b   5.09
_cell_length_c   9.71
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrY2Pt
_chemical_formula_sum   'Sr2 Y4 Pt2'
_cell_volume   251.41
_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
  Y  Y1  2  0.3  0.5  0.23  1.0
  Y  Y2  2  0.3  0.5  0.48  1.0
  Pt  Pt3  2  0.0  0.0  0.86  1.0

Sr Y Y Pt
SrY2Pt crystallizes in the monoclinic Cm space group. Sr(1) is bonded in a distorted single-bond geometry to one Y(1) and one Pt(1) atom. The Sr(1)-Y(1) bond length is 2.48 Å. The Sr(1)-Pt(1) bond length is 1.39 Å. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 2-coordinate geometry to one Sr(1) and one Y(2) atom. The Y(1)-Y(2) bond length is 2.42 Å. In the second Y site, Y(2) is bonded to one Y(1), four equivalent Y(2), and one Pt(1) atom to form a mixture of distorted edge and corner-sharing YY5Pt octahedra. The corner-sharing octahedra are not tilted. All Y(2)-Y(2) bond lengths are 3.60 Å. The Y(2)-Pt(1) bond length is 3.79 Å. Pt(1) is bonded in a single-bond geometry to one Sr(1) and one Y(2) atom.