The compound described by Lu3(CuGe)4 crystallizes in the orthorhombic Immm space group. There are two inequivalent Lu sites. In the first Lu site, Lu(1) is bonded to two equivalent Ge(1) and four equivalent Ge(2) atoms to form distorted edge-sharing LuGe6 octahedra. In the second Lu site, Lu(2) is bonded in a 12-coordinate geometry to six equivalent Cu(1), two equivalent Ge(1), and four equivalent Ge(2) atoms. Cu(1) is bonded in a 8-coordinate geometry to three equivalent Lu(2), 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 Lu(1), two equivalent Lu(2), and six equivalent Cu(1) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Lu(1), four equivalent Lu(2), two equivalent Cu(1), and one Ge(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Lu3(CuGe)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.115
_cell_length_b   6.539
_cell_length_c   7.839
_cell_angle_alpha   114.647
_cell_angle_beta   105.217
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   183.557
_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
  Lu  Lu0  1  0.000  0.500  0.000  1.0
  Lu  Lu1  1  0.871  0.871  0.741  1.0
  Lu  Lu2  1  0.129  0.129  0.259  1.0
  Cu  Cu3  1  0.669  0.478  0.338  1.0
  Cu  Cu4  1  0.669  0.860  0.338  1.0
  Cu  Cu5  1  0.331  0.140  0.662  1.0
  Cu  Cu6  1  0.331  0.522  0.662  1.0
  Ge  Ge7  1  0.786  0.286  0.571  1.0
  Ge  Ge8  1  0.214  0.714  0.429  1.0
  Ge  Ge9  1  0.500  0.808  0.000  1.0
  Ge  Ge10  1  0.500  0.192  0.000  1.0
[/CIF]
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The compound described by Lu3(CuGe)4 crystallizes in the orthorhombic Immm space group. There are two inequivalent Lu sites. In the first Lu site, Lu(1) is bonded to two equivalent Ge(1) and four equivalent Ge(2) atoms to form distorted edge-sharing LuGe6 octahedra. In the second Lu site, Lu(2) is bonded in a 12-coordinate geometry to six equivalent Cu(1), two equivalent Ge(1), and four equivalent Ge(2) atoms. Cu(1) is bonded in a 8-coordinate geometry to three equivalent Lu(2), 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 Lu(1), two equivalent Lu(2), and six equivalent Cu(1) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Lu(1), four equivalent Lu(2), two equivalent Cu(1), and one Ge(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Lu3(CuGe)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.115
_cell_length_b   6.539
_cell_length_c   7.839
_cell_angle_alpha   114.647
_cell_angle_beta   105.217
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   183.557
_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
  Lu  Lu0  1  0.000  0.500  0.000  1.0
  Lu  Lu1  1  0.871  0.871  0.741  1.0
  Lu  Lu2  1  0.129  0.129  0.259  1.0
  Cu  Cu3  1  0.669  0.478  0.338  1.0
  Cu  Cu4  1  0.669  0.860  0.338  1.0
  Cu  Cu5  1  0.331  0.140  0.662  1.0
  Cu  Cu6  1  0.331  0.522  0.662  1.0
  Ge  Ge7  1  0.786  0.286  0.571  1.0
  Ge  Ge8  1  0.214  0.714  0.429  1.0
  Ge  Ge9  1  0.500  0.808  0.000  1.0
  Ge  Ge10  1  0.500  0.192  0.000  1.0
[/CIF]
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