data_Nb2Pt3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.33
_cell_length_b   5.32
_cell_length_c   8.23
_cell_angle_alpha   61.12
_cell_angle_beta   39.45
_cell_angle_gamma   79.43
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Nb2Pt3
_chemical_formula_sum   'Nb4 Pt6'
_cell_volume   167.77
_cell_formula_units_Z   2
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
  Nb  Nb0  1  0.74  0.59  0.33  1.0
  Nb  Nb1  1  0.45  0.06  0.33  1.0
  Nb  Nb2  1  0.04  0.65  1.0  1.0
  Nb  Nb3  1  0.16  1.0  1.0  1.0
  Pt  Pt4  1  0.03  0.37  0.1  1.0
  Pt  Pt5  1  0.17  0.28  0.1  1.0
  Pt  Pt6  1  0.32  0.69  0.44  1.0
  Pt  Pt7  1  0.47  0.78  0.44  1.0
  Pt  Pt8  1  0.6  0.82  0.18  1.0
  Pt  Pt9  1  0.3  0.41  0.17  1.0

data_Nb2Pt3
_symmetry_space_group_name_H-M   P1
_cell_length_a   5.32
_cell_length_b   5.32
_cell_length_c   7.33
_cell_angle_alpha   100.57
_cell_angle_beta   100.57
_cell_angle_gamma   119.64
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Nb2Pt3
_chemical_formula_sum   'Nb4 Pt6'
_cell_volume   167.77
_cell_formula_units_Z   2
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
  Nb  Nb0  1  0.33  0.94  0.79  1.0
  Nb  Nb1  1  0.33  0.41  0.08  1.0
  Nb  Nb2  1  1.0  0.0  0.15  1.0
  Nb  Nb3  1  1.0  0.35  0.04  1.0
  Pt  Pt4  1  0.1  0.72  0.27  1.0
  Pt  Pt5  1  0.1  0.63  0.12  1.0
  Pt  Pt6  1  0.17  0.59  0.47  1.0
  Pt  Pt7  1  0.18  0.18  0.77  1.0
  Pt  Pt8  1  0.44  0.31  0.76  1.0
  Pt  Pt9  1  0.44  0.22  0.9  1.0

Nb Nb Nb Nb Pt Pt Pt Pt Pt Pt
Nb2Pt3 crystallizes in the triclinic P1 space group. There are four inequivalent Nb sites. In the first Nb site, Nb(1) is bonded in a 1-coordinate geometry to one Pt(4) and one Pt(5) atom. The Nb(1)-Pt(4) bond length is 1.80 Å. The Nb(1)-Pt(5) bond length is 2.10 Å. In the second Nb site, Nb(2) is bonded in a distorted single-bond geometry to one Pt(3), one Pt(4), one Pt(5), and one Pt(6) atom. The Nb(2)-Pt(3) bond length is 1.85 Å. The Nb(2)-Pt(4) bond length is 1.33 Å. The Nb(2)-Pt(5) bond length is 1.83 Å. The Nb(2)-Pt(6) bond length is 2.42 Å. In the third Nb site, Nb(3) is bonded in a distorted single-bond geometry to one Pt(1), one Pt(4), and one Pt(5) atom. The Nb(3)-Pt(1) bond length is 1.27 Å. The Nb(3)-Pt(4) bond length is 2.64 Å. The Nb(3)-Pt(5) bond length is 2.52 Å. In the fourth Nb site, Nb(4) is bonded in a 1-coordinate geometry to one Pt(2) and one Pt(6) atom. The Nb(4)-Pt(2) bond length is 2.07 Å. The Nb(4)-Pt(6) bond length is 3.10 Å. There are six inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a distorted single-bond geometry to one Nb(3) and one Pt(2) atom. The Pt(1)-Pt(2) bond length is 1.09 Å. In the second Pt site, Pt(2) is bonded in a 3-coordinate geometry to one Nb(4), one Pt(1), and one Pt(6) atom. The Pt(2)-Pt(6) bond length is 1.78 Å. In the third Pt site, Pt(3) is bonded in a 3-coordinate geometry to one Nb(2), one Pt(4), and one Pt(5) atom. The Pt(3)-Pt(4) bond length is 1.26 Å. The Pt(3)-Pt(5) bond length is 1.24 Å. In the fourth Pt site, Pt(4) is bonded in a 5-coordinate geometry to one Nb(1), one Nb(2), one Nb(3), one Pt(3), and one Pt(5) atom. The Pt(4)-Pt(5) bond length is 1.41 Å. In the fifth Pt site, Pt(5) is bonded in a 5-coordinate geometry to one Nb(1), one Nb(2), one Nb(3), one Pt(3), and one Pt(4) atom. In the sixth Pt site, Pt(6) is bonded in a 3-coordinate geometry to one Nb(2), one Nb(4), and one Pt(2) atom.