The crystal structure described by TcPt3 is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. Tc(1) is bonded to four equivalent Pt(2) and eight equivalent Pt(1) atoms to form TcPt12 cuboctahedra that share corners with four equivalent Tc(1)Pt12 cuboctahedra, corners with eight equivalent Pt(2)Tc4Pt8 cuboctahedra, edges with eight equivalent Tc(1)Pt12 cuboctahedra, edges with sixteen equivalent Pt(1)Tc4Pt8 cuboctahedra, faces with four equivalent Tc(1)Pt12 cuboctahedra, faces with six equivalent Pt(2)Tc4Pt8 cuboctahedra, and faces with eight equivalent Pt(1)Tc4Pt8 cuboctahedra. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded to four equivalent Tc(1), four equivalent Pt(1), and four equivalent Pt(2) atoms to form PtTc4Pt8 cuboctahedra that share corners with twelve equivalent Pt(1)Tc4Pt8 cuboctahedra, edges with eight equivalent Tc(1)Pt12 cuboctahedra, edges with eight equivalent Pt(1)Tc4Pt8 cuboctahedra, edges with eight equivalent Pt(2)Tc4Pt8 cuboctahedra, faces with four equivalent Tc(1)Pt12 cuboctahedra, faces with four equivalent Pt(2)Tc4Pt8 cuboctahedra, and faces with ten equivalent Pt(1)Tc4Pt8 cuboctahedra. In the second Pt site, Pt(2) is bonded to four equivalent Tc(1) and eight equivalent Pt(1) atoms to form distorted PtTc4Pt8 cuboctahedra that share corners with four equivalent Pt(2)Tc4Pt8 cuboctahedra, corners with eight equivalent Tc(1)Pt12 cuboctahedra, edges with eight equivalent Pt(2)Tc4Pt8 cuboctahedra, edges with sixteen equivalent Pt(1)Tc4Pt8 cuboctahedra, faces with four equivalent Pt(2)Tc4Pt8 cuboctahedra, faces with six equivalent Tc(1)Pt12 cuboctahedra, and faces with eight equivalent Pt(1)Tc4Pt8 cuboctahedra. is represented by the CIF card [CIF]
data_TcPt3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.823
_cell_length_b   4.823
_cell_length_c   4.823
_cell_angle_alpha   132.599
_cell_angle_beta   132.599
_cell_angle_gamma   69.285
_symmetry_Int_Tables_number   1
_cell_volume   59.666
_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  Tc0  1  0.000  0.000  0.000  1.0
  Pt  Pt1  1  0.750  0.250  0.500  1.0
  Pt  Pt2  1  0.250  0.750  0.500  1.0
  Pt  Pt3  1  0.500  0.500  0.000  1.0
[/CIF]
.
The crystal structure described by TcPt3 is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. Tc(1) is bonded to four equivalent Pt(2) and eight equivalent Pt(1) atoms to form TcPt12 cuboctahedra that share corners with four equivalent Tc(1)Pt12 cuboctahedra, corners with eight equivalent Pt(2)Tc4Pt8 cuboctahedra, edges with eight equivalent Tc(1)Pt12 cuboctahedra, edges with sixteen equivalent Pt(1)Tc4Pt8 cuboctahedra, faces with four equivalent Tc(1)Pt12 cuboctahedra, faces with six equivalent Pt(2)Tc4Pt8 cuboctahedra, and faces with eight equivalent Pt(1)Tc4Pt8 cuboctahedra. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded to four equivalent Tc(1), four equivalent Pt(1), and four equivalent Pt(2) atoms to form PtTc4Pt8 cuboctahedra that share corners with twelve equivalent Pt(1)Tc4Pt8 cuboctahedra, edges with eight equivalent Tc(1)Pt12 cuboctahedra, edges with eight equivalent Pt(1)Tc4Pt8 cuboctahedra, edges with eight equivalent Pt(2)Tc4Pt8 cuboctahedra, faces with four equivalent Tc(1)Pt12 cuboctahedra, faces with four equivalent Pt(2)Tc4Pt8 cuboctahedra, and faces with ten equivalent Pt(1)Tc4Pt8 cuboctahedra. In the second Pt site, Pt(2) is bonded to four equivalent Tc(1) and eight equivalent Pt(1) atoms to form distorted PtTc4Pt8 cuboctahedra that share corners with four equivalent Pt(2)Tc4Pt8 cuboctahedra, corners with eight equivalent Tc(1)Pt12 cuboctahedra, edges with eight equivalent Pt(2)Tc4Pt8 cuboctahedra, edges with sixteen equivalent Pt(1)Tc4Pt8 cuboctahedra, faces with four equivalent Pt(2)Tc4Pt8 cuboctahedra, faces with six equivalent Tc(1)Pt12 cuboctahedra, and faces with eight equivalent Pt(1)Tc4Pt8 cuboctahedra. is represented by the CIF card [CIF]
data_TcPt3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.823
_cell_length_b   4.823
_cell_length_c   4.823
_cell_angle_alpha   132.599
_cell_angle_beta   132.599
_cell_angle_gamma   69.285
_symmetry_Int_Tables_number   1
_cell_volume   59.666
_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  Tc0  1  0.000  0.000  0.000  1.0
  Pt  Pt1  1  0.750  0.250  0.500  1.0
  Pt  Pt2  1  0.250  0.750  0.500  1.0
  Pt  Pt3  1  0.500  0.500  0.000  1.0
[/CIF]
.