data_Tc2BiPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.02
_cell_length_b   3.02
_cell_length_c   7.92
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Tc2BiPt
_chemical_formula_sum   'Tc2 Bi1 Pt1'
_cell_volume   72.39
_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
  Tc  Tc2  1  0.51  0.51  0.18  1.0
  Tc  Tc3  1  0.0  0.0  0.62  1.0
  Bi  Bi0  1  0.51  0.51  0.88  1.0
  Pt  Pt1  1  0.0  0.0  0.2  1.0

data_Tc2BiPt
_symmetry_space_group_name_H-M   P4mm
_cell_length_a   3.02
_cell_length_b   3.02
_cell_length_c   7.92
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   99
_chemical_formula_structural   Tc2BiPt
_chemical_formula_sum   'Tc2 Bi1 Pt1'
_cell_volume   72.39
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x, z'
  3  '-x, -y, z'
  4  'y, -x, z'
  5  '-x, y, z'
  6  'y, x, z'
  7  'x, -y, z'
  8  '-y, -x, 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
  Tc  Tc0  1  0.0  0.0  0.62  1.0
  Tc  Tc1  1  0.5  0.5  0.18  1.0
  Bi  Bi2  1  0.5  0.5  0.88  1.0
  Pt  Pt3  1  0.0  0.0  0.2  1.0

Tc Tc Bi Pt
Tc2PtBi crystallizes in the monoclinic Cm space group. There are two inequivalent Tc sites. In the first Tc site, Tc(1) is bonded to four equivalent Pt(1) and one Bi(1) atom to form a mixture of corner and edge-sharing TcBiPt4 square pyramids. There are a spread of Tc(1)-Pt(1) bond distances ranging from 2.10-2.19 Å. The Tc(1)-Bi(1) bond length is 2.36 Å. In the second Tc site, Tc(2) is bonded in a 9-coordinate geometry to four equivalent Tc(2), one Pt(1), and four equivalent Bi(1) atoms. All Tc(2)-Tc(2) bond lengths are 3.02 Å. The Tc(2)-Pt(1) bond length is 3.34 Å. There are a spread of Tc(2)-Bi(1) bond distances ranging from 2.93-3.00 Å. Pt(1) is bonded in a distorted square co-planar geometry to one Tc(2) and four equivalent Tc(1) atoms. Bi(1) is bonded in a distorted single-bond geometry to one Tc(1) and four equivalent Tc(2) atoms.