data_NaCu2Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.51
_cell_length_b   4.51
_cell_length_c   2.9
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   97.07
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaCu2Pt
_chemical_formula_sum   'Na1 Cu2 Pt1'
_cell_volume   58.43
_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  Na2  1  0.0  0.0  0.0  1.0
  Cu  Cu0  1  0.49  0.31  0.45  1.0
  Cu  Cu1  1  0.49  0.69  0.45  1.0
  Pt  Pt3  1  0.98  0.0  0.0  1.0

data_NaCu2Pt
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.9
_cell_length_b   4.51
_cell_length_c   4.51
_cell_angle_alpha   97.07
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaCu2Pt
_chemical_formula_sum   'Na1 Cu2 Pt1'
_cell_volume   58.43
_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  0.0  1.0
  Cu  Cu1  1  0.45  0.49  0.31  1.0
  Cu  Cu2  1  0.45  0.49  0.69  1.0
  Pt  Pt3  1  0.0  0.98  0.0  1.0

Na Cu Cu Pt
Na Cu Cu Pt 0 3 - o o 1 2 o o o 
NaPtCu2 crystallizes in the triclinic P1 space group. Na(1) is bonded in a single-bond geometry to one Pt(1), two equivalent Cu(1), and two equivalent Cu(2) atoms. The Na(1)-Pt(1) bond length is 0.07 Å. There is one shorter (2.80 Å) and one longer (2.94 Å) Na(1)-Cu(1) bond length. There is one shorter (3.06 Å) and one longer (3.19 Å) Na(1)-Cu(2) bond length. Pt(1) is bonded in a single-bond geometry to one Na(1), two equivalent Cu(1), and two equivalent Cu(2) atoms. There is one shorter (3.06 Å) and one longer (3.19 Å) Pt(1)-Cu(1) bond length. There is one shorter (2.80 Å) and one longer (2.94 Å) Pt(1)-Cu(2) bond length. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 8-coordinate geometry to two equivalent Na(1), two equivalent Pt(1), two equivalent Cu(1), and two equivalent Cu(2) atoms. Both Cu(1)-Cu(1) bond lengths are 2.90 Å. There is one shorter (1.70 Å) and one longer (2.81 Å) Cu(1)-Cu(2) bond length. In the second Cu site, Cu(2) is bonded in a 8-coordinate geometry to two equivalent Na(1), two equivalent Pt(1), two equivalent Cu(1), and two equivalent Cu(2) atoms. Both Cu(2)-Cu(2) bond lengths are 2.90 Å.