The material described by Tm3Pt2Ga9 crystallizes in the orthorhombic Immm space group. There are two inequivalent Tm sites. In the first Tm site, Tm(1) is bonded to four equivalent Ga(3) and eight equivalent Ga(2) atoms to form distorted TmGa12 cuboctahedra that share edges with two equivalent Ga(1)Tm4Ga4Pt4 cuboctahedra and faces with two equivalent Tm(1)Ga12 cuboctahedra. In the second Tm site, Tm(2) is bonded in a 12-coordinate geometry to two equivalent Pt(1), two equivalent Ga(1), four equivalent Ga(2), and six equivalent Ga(3) atoms. Pt(1) is bonded in a 10-coordinate geometry to two equivalent Tm(2), two equivalent Ga(1), two equivalent Ga(2), and four equivalent Ga(3) atoms. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to four equivalent Tm(2), four equivalent Pt(1), and four equivalent Ga(3) atoms to form GaTm4Ga4Pt4 cuboctahedra that share edges with two equivalent Tm(1)Ga12 cuboctahedra and faces with two equivalent Ga(1)Tm4Ga4Pt4 cuboctahedra. In the second Ga site, Ga(2) is bonded in a 9-coordinate geometry to two equivalent Tm(1), two equivalent Tm(2), one Pt(1), one Ga(2), and three equivalent Ga(3) atoms. In the third Ga site, Ga(3) is bonded in a 10-coordinate geometry to one Tm(1), three equivalent Tm(2), two equivalent Pt(1), one Ga(1), and three equivalent Ga(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tm3Ga9Pt2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.141
_cell_length_b   8.141
_cell_length_c   8.141
_cell_angle_alpha   149.985
_cell_angle_beta   105.182
_cell_angle_gamma   82.658
_symmetry_Int_Tables_number   1
_cell_volume   254.925
_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
  Tm  Tm0  1  0.000  0.000  0.000  1.0
  Tm  Tm1  1  0.309  0.309  0.000  1.0
  Tm  Tm2  1  0.691  0.691  0.000  1.0
  Ga  Ga3  1  0.500  0.000  0.500  1.0
  Ga  Ga4  1  0.972  0.343  0.629  1.0
  Ga  Ga5  1  0.028  0.657  0.371  1.0
  Ga  Ga6  1  0.714  0.343  0.371  1.0
  Ga  Ga7  1  0.286  0.657  0.629  1.0
  Ga  Ga8  1  0.854  0.137  0.717  1.0
  Ga  Ga9  1  0.146  0.863  0.283  1.0
  Ga  Ga10  1  0.420  0.137  0.283  1.0
  Ga  Ga11  1  0.580  0.863  0.717  1.0
  Pt  Pt12  1  0.303  0.500  0.803  1.0
  Pt  Pt13  1  0.697  0.500  0.197  1.0
[/CIF]
.
The material described by Tm3Pt2Ga9 crystallizes in the orthorhombic Immm space group. There are two inequivalent Tm sites. In the first Tm site, Tm(1) is bonded to four equivalent Ga(3) and eight equivalent Ga(2) atoms to form distorted TmGa12 cuboctahedra that share edges with two equivalent Ga(1)Tm4Ga4Pt4 cuboctahedra and faces with two equivalent Tm(1)Ga12 cuboctahedra. In the second Tm site, Tm(2) is bonded in a 12-coordinate geometry to two equivalent Pt(1), two equivalent Ga(1), four equivalent Ga(2), and six equivalent Ga(3) atoms. Pt(1) is bonded in a 10-coordinate geometry to two equivalent Tm(2), two equivalent Ga(1), two equivalent Ga(2), and four equivalent Ga(3) atoms. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to four equivalent Tm(2), four equivalent Pt(1), and four equivalent Ga(3) atoms to form GaTm4Ga4Pt4 cuboctahedra that share edges with two equivalent Tm(1)Ga12 cuboctahedra and faces with two equivalent Ga(1)Tm4Ga4Pt4 cuboctahedra. In the second Ga site, Ga(2) is bonded in a 9-coordinate geometry to two equivalent Tm(1), two equivalent Tm(2), one Pt(1), one Ga(2), and three equivalent Ga(3) atoms. In the third Ga site, Ga(3) is bonded in a 10-coordinate geometry to one Tm(1), three equivalent Tm(2), two equivalent Pt(1), one Ga(1), and three equivalent Ga(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tm3Ga9Pt2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.141
_cell_length_b   8.141
_cell_length_c   8.141
_cell_angle_alpha   149.985
_cell_angle_beta   105.182
_cell_angle_gamma   82.658
_symmetry_Int_Tables_number   1
_cell_volume   254.925
_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
  Tm  Tm0  1  0.000  0.000  0.000  1.0
  Tm  Tm1  1  0.309  0.309  0.000  1.0
  Tm  Tm2  1  0.691  0.691  0.000  1.0
  Ga  Ga3  1  0.500  0.000  0.500  1.0
  Ga  Ga4  1  0.972  0.343  0.629  1.0
  Ga  Ga5  1  0.028  0.657  0.371  1.0
  Ga  Ga6  1  0.714  0.343  0.371  1.0
  Ga  Ga7  1  0.286  0.657  0.629  1.0
  Ga  Ga8  1  0.854  0.137  0.717  1.0
  Ga  Ga9  1  0.146  0.863  0.283  1.0
  Ga  Ga10  1  0.420  0.137  0.283  1.0
  Ga  Ga11  1  0.580  0.863  0.717  1.0
  Pt  Pt12  1  0.303  0.500  0.803  1.0
  Pt  Pt13  1  0.697  0.500  0.197  1.0
[/CIF]
.