data_LaPt2Se
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.63
_cell_length_b   5.63
_cell_length_c   5.63
_cell_angle_alpha   136.89
_cell_angle_beta   136.89
_cell_angle_gamma   62.6
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LaPt2Se
_chemical_formula_sum   'La1 Pt2 Se1'
_cell_volume   82.46
_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
  La  La0  1  0.0  0.0  0.81  1.0
  Pt  Pt1  1  0.0  0.07  0.41  1.0
  Pt  Pt2  1  0.07  0.0  0.41  1.0
  Se  Se3  1  0.0  0.0  0.0  1.0

data_LaPt2Se
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.85
_cell_length_b   5.85
_cell_length_c   5.63
_cell_angle_alpha   90.0
_cell_angle_beta   121.3
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   LaPt2Se
_chemical_formula_sum   'La2 Pt4 Se2'
_cell_volume   164.93
_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
  La  La0  2  0.0  0.0  0.81  1.0
  Pt  Pt1  4  0.47  0.47  0.34  1.0
  Se  Se2  2  0.0  0.0  0.0  1.0

La Pt Pt Se
La Pt Pt Se 0 3 o o + 1 2 o o o 
(Pt)2LaSe crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two LaSe clusters and two Pt clusters. In each LaSe cluster, La(1) is bonded in a single-bond geometry to one Se(1) atom. The La(1)-Se(1) bond length is 1.05 Å. Se(1) is bonded in a single-bond geometry to one La(1) atom. In each Pt cluster, Pt(1) is bonded in a distorted single-bond geometry to one Pt(1) atom. The Pt(1)-Pt(1) bond length is 0.41 Å.