The material described by Tb2PtAl3 crystallizes in the trigonal R-3m space group. Tb(1) is bonded in a 12-coordinate geometry to three equivalent Pt(1) and nine equivalent Al(1) atoms. Pt(1) is bonded to six equivalent Tb(1) and six equivalent Al(1) atoms to form PtTb6Al6 cuboctahedra that share corners with six equivalent Pt(1)Tb6Al6 cuboctahedra, corners with twelve equivalent Al(1)Tb6Al4Pt2 cuboctahedra, edges with six equivalent Pt(1)Tb6Al6 cuboctahedra, and faces with eighteen equivalent Al(1)Tb6Al4Pt2 cuboctahedra. Al(1) is bonded to six equivalent Tb(1), two equivalent Pt(1), and four equivalent Al(1) atoms to form distorted AlTb6Al4Pt2 cuboctahedra that share corners with four equivalent Pt(1)Tb6Al6 cuboctahedra, corners with fourteen equivalent Al(1)Tb6Al4Pt2 cuboctahedra, edges with six equivalent Al(1)Tb6Al4Pt2 cuboctahedra, faces with six equivalent Pt(1)Tb6Al6 cuboctahedra, and faces with twelve equivalent Al(1)Tb6Al4Pt2 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tb2Al3Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.440
_cell_length_b   5.440
_cell_length_c   5.440
_cell_angle_alpha   61.353
_cell_angle_beta   61.353
_cell_angle_gamma   61.353
_symmetry_Int_Tables_number   1
_cell_volume   117.268
_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
  Tb  Tb0  1  0.625  0.625  0.625  1.0
  Tb  Tb1  1  0.375  0.375  0.375  1.0
  Al  Al2  1  0.000  0.500  0.000  1.0
  Al  Al3  1  0.500  0.000  0.000  1.0
  Al  Al4  1  0.000  0.000  0.500  1.0
  Pt  Pt5  1  0.000  0.000  0.000  1.0
[/CIF]
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The material described by Tb2PtAl3 crystallizes in the trigonal R-3m space group. Tb(1) is bonded in a 12-coordinate geometry to three equivalent Pt(1) and nine equivalent Al(1) atoms. Pt(1) is bonded to six equivalent Tb(1) and six equivalent Al(1) atoms to form PtTb6Al6 cuboctahedra that share corners with six equivalent Pt(1)Tb6Al6 cuboctahedra, corners with twelve equivalent Al(1)Tb6Al4Pt2 cuboctahedra, edges with six equivalent Pt(1)Tb6Al6 cuboctahedra, and faces with eighteen equivalent Al(1)Tb6Al4Pt2 cuboctahedra. Al(1) is bonded to six equivalent Tb(1), two equivalent Pt(1), and four equivalent Al(1) atoms to form distorted AlTb6Al4Pt2 cuboctahedra that share corners with four equivalent Pt(1)Tb6Al6 cuboctahedra, corners with fourteen equivalent Al(1)Tb6Al4Pt2 cuboctahedra, edges with six equivalent Al(1)Tb6Al4Pt2 cuboctahedra, faces with six equivalent Pt(1)Tb6Al6 cuboctahedra, and faces with twelve equivalent Al(1)Tb6Al4Pt2 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tb2Al3Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.440
_cell_length_b   5.440
_cell_length_c   5.440
_cell_angle_alpha   61.353
_cell_angle_beta   61.353
_cell_angle_gamma   61.353
_symmetry_Int_Tables_number   1
_cell_volume   117.268
_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
  Tb  Tb0  1  0.625  0.625  0.625  1.0
  Tb  Tb1  1  0.375  0.375  0.375  1.0
  Al  Al2  1  0.000  0.500  0.000  1.0
  Al  Al3  1  0.500  0.000  0.000  1.0
  Al  Al4  1  0.000  0.000  0.500  1.0
  Pt  Pt5  1  0.000  0.000  0.000  1.0
[/CIF]
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