data_NaSiPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.91
_cell_length_b   5.91
_cell_length_c   5.91
_cell_angle_alpha   148.6
_cell_angle_beta   148.6
_cell_angle_gamma   45.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaSiPt
_chemical_formula_sum   'Na1 Si1 Pt1'
_cell_volume   55.9
_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
  Na  Na0  1  0.0  0.0  0.01  1.0
  Si  Si2  1  0.0  0.0  0.69  1.0
  Pt  Pt1  1  0.0  0.0  0.22  1.0

data_NaSiPt
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.52
_cell_length_b   4.52
_cell_length_c   5.91
_cell_angle_alpha   90.0
_cell_angle_beta   112.5
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   NaSiPt
_chemical_formula_sum   'Na2 Si2 Pt2'
_cell_volume   111.79
_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
  Na  Na0  2  0.01  0.0  0.01  1.0
  Si  Si1  2  0.19  0.5  0.69  1.0
  Pt  Pt2  2  0.22  0.0  0.22  1.0

Na Si Pt
Na Si Pt 0 2 o o o 0 1 o o - 
NaPtSi crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two NaPtSi clusters. Na(1) is bonded in a distorted linear geometry to one Pt(1) and one Si(1) atom. The Na(1)-Pt(1) bond length is 1.28 Å. The Na(1)-Si(1) bond length is 1.89 Å. Pt(1) is bonded in a single-bond geometry to one Na(1) atom. Si(1) is bonded in a distorted single-bond geometry to one Na(1) atom.