The structure described by Tm3(CuGe)4 crystallizes in the monoclinic C2/m space group. There are two inequivalent Tm sites. In the first Tm site, Tm(1) is bonded in a 12-coordinate geometry to six equivalent Cu(1), two equivalent Ge(1), and four equivalent Ge(2) atoms. In the second Tm site, Tm(2) is bonded to two equivalent Ge(1) and four equivalent Ge(2) atoms to form distorted edge-sharing TmGe6 octahedra. Cu(1) is bonded in a 8-coordinate geometry to three equivalent Tm(1), one Cu(1), one Ge(2), and three equivalent Ge(1) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to one Tm(2), two equivalent Tm(1), and six equivalent Cu(1) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Tm(2), four equivalent Tm(1), two equivalent Cu(1), and one Ge(2) atom. is represented by the CIF card [CIF]
data_Tm3(CuGe)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.125
_cell_length_b   6.572
_cell_length_c   7.865
_cell_angle_alpha   114.682
_cell_angle_beta   105.215
_cell_angle_gamma   89.995
_symmetry_Int_Tables_number   1
_cell_volume   185.451
_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  0.130  0.130  0.260  1.0
  Tm  Tm1  1  0.870  0.870  0.740  1.0
  Tm  Tm2  1  0.000  0.500  0.000  1.0
  Cu  Cu3  1  0.672  0.479  0.340  1.0
  Cu  Cu4  1  0.672  0.861  0.341  1.0
  Cu  Cu5  1  0.328  0.139  0.659  1.0
  Cu  Cu6  1  0.328  0.521  0.660  1.0
  Ge  Ge7  1  0.782  0.284  0.566  1.0
  Ge  Ge8  1  0.218  0.716  0.434  1.0
  Ge  Ge9  1  0.500  0.192  1.000  1.0
  Ge  Ge10  1  0.500  0.808  0.000  1.0
[/CIF]
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The structure described by Tm3(CuGe)4 crystallizes in the monoclinic C2/m space group. There are two inequivalent Tm sites. In the first Tm site, Tm(1) is bonded in a 12-coordinate geometry to six equivalent Cu(1), two equivalent Ge(1), and four equivalent Ge(2) atoms. In the second Tm site, Tm(2) is bonded to two equivalent Ge(1) and four equivalent Ge(2) atoms to form distorted edge-sharing TmGe6 octahedra. Cu(1) is bonded in a 8-coordinate geometry to three equivalent Tm(1), one Cu(1), one Ge(2), and three equivalent Ge(1) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to one Tm(2), two equivalent Tm(1), and six equivalent Cu(1) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Tm(2), four equivalent Tm(1), two equivalent Cu(1), and one Ge(2) atom. is represented by the CIF card [CIF]
data_Tm3(CuGe)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.125
_cell_length_b   6.572
_cell_length_c   7.865
_cell_angle_alpha   114.682
_cell_angle_beta   105.215
_cell_angle_gamma   89.995
_symmetry_Int_Tables_number   1
_cell_volume   185.451
_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  0.130  0.130  0.260  1.0
  Tm  Tm1  1  0.870  0.870  0.740  1.0
  Tm  Tm2  1  0.000  0.500  0.000  1.0
  Cu  Cu3  1  0.672  0.479  0.340  1.0
  Cu  Cu4  1  0.672  0.861  0.341  1.0
  Cu  Cu5  1  0.328  0.139  0.659  1.0
  Cu  Cu6  1  0.328  0.521  0.660  1.0
  Ge  Ge7  1  0.782  0.284  0.566  1.0
  Ge  Ge8  1  0.218  0.716  0.434  1.0
  Ge  Ge9  1  0.500  0.192  1.000  1.0
  Ge  Ge10  1  0.500  0.808  0.000  1.0
[/CIF]
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