data_SrNiPt2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.36
_cell_length_b   3.36
_cell_length_c   6.71
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrNiPt2
_chemical_formula_sum   'Sr1 Ni1 Pt2'
_cell_volume   75.62
_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  0.68  0.68  0.35  1.0
  Ni  Ni0  1  0.0  0.0  0.53  1.0
  Pt  Pt1  1  0.68  0.68  0.53  1.0
  Pt  Pt2  1  0.0  0.0  0.37  1.0

data_SrNiPt2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.75
_cell_length_b   4.75
_cell_length_c   6.71
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrNiPt2
_chemical_formula_sum   'Sr2 Ni2 Pt4'
_cell_volume   151.24
_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  0.18  0.5  0.35  1.0
  Ni  Ni1  2  0.0  0.0  0.53  1.0
  Pt  Pt2  2  0.0  0.0  0.37  1.0
  Pt  Pt3  2  0.18  0.5  0.53  1.0

Sr Ni Pt Pt
SrPt2Ni crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two SrPt2Ni clusters. Sr(1) is bonded in a distorted single-bond geometry to one Pt(1) and one Pt(2) atom. The Sr(1)-Pt(1) bond length is 1.21 Å. The Sr(1)-Pt(2) bond length is 1.53 Å. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a single-bond geometry to one Sr(1) atom. In the second Pt site, Pt(2) is bonded in a 2-coordinate geometry to one Sr(1) and one Ni(1) atom. The Pt(2)-Ni(1) bond length is 1.03 Å. Ni(1) is bonded in a distorted single-bond geometry to one Pt(2) atom.