The compound described by Lu11Ge10 is delta Molybdenum Boride-like structured and crystallizes in the tetragonal I4/mmm space group. There are four inequivalent Lu sites. In the first Lu site, Lu(1) is bonded to one Ge(1), one Ge(2), one Ge(4), and four equivalent Ge(5) atoms to form a mixture of distorted corner, edge, and face-sharing LuGe7 pentagonal bipyramids. In the second Lu site, Lu(2) is bonded in a 7-coordinate geometry to one Ge(3), two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(5) atoms. In the third Lu site, Lu(3) is bonded in a 9-coordinate geometry to one Ge(2), four equivalent Ge(3), and four equivalent Ge(5) atoms. In the fourth Lu site, Lu(4) is bonded in a 7-coordinate geometry to one Ge(4), two equivalent Ge(1), two equivalent Ge(3), and two equivalent Ge(5) atoms. There are five inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to two equivalent Lu(1), two equivalent Lu(2), and four equivalent Lu(4) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to one Lu(3), four equivalent Lu(1), and four equivalent Lu(2) atoms. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to one Lu(2), two equivalent Lu(3), four equivalent Lu(4), and two equivalent Ge(3) atoms. In the fourth Ge site, Ge(4) is bonded in a 8-coordinate geometry to four equivalent Lu(1) and four equivalent Lu(4) atoms. In the fifth Ge site, Ge(5) is bonded in a 9-coordinate geometry to one Lu(2), one Lu(3), two equivalent Lu(4), four equivalent Lu(1), and one Ge(5) atom. is represented by the CIF file [CIF]
data_Lu11Ge10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.649
_cell_length_b   10.649
_cell_length_c   10.950
_cell_angle_alpha   119.094
_cell_angle_beta   119.094
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   901.587
_cell_formula_units_Z   2
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  0.938  0.190  0.380  1.0
  Lu  Lu1  1  0.442  0.190  0.380  1.0
  Lu  Lu2  1  0.190  0.442  0.380  1.0
  Lu  Lu3  1  0.190  0.938  0.380  1.0
  Lu  Lu4  1  0.062  0.810  0.620  1.0
  Lu  Lu5  1  0.558  0.810  0.620  1.0
  Lu  Lu6  1  0.810  0.558  0.620  1.0
  Lu  Lu7  1  0.810  0.062  0.620  1.0
  Lu  Lu8  1  0.823  0.177  0.000  1.0
  Lu  Lu9  1  0.177  0.823  0.000  1.0
  Lu  Lu10  1  0.177  0.177  0.000  1.0
  Lu  Lu11  1  0.823  0.823  0.000  1.0
  Lu  Lu12  1  0.340  0.340  0.680  1.0
  Lu  Lu13  1  0.660  0.660  0.320  1.0
  Lu  Lu14  1  0.073  0.399  0.797  1.0
  Lu  Lu15  1  0.724  0.399  0.797  1.0
  Lu  Lu16  1  0.399  0.724  0.797  1.0
  Lu  Lu17  1  0.399  0.073  0.797  1.0
  Lu  Lu18  1  0.927  0.601  0.203  1.0
  Lu  Lu19  1  0.276  0.601  0.203  1.0
  Lu  Lu20  1  0.601  0.276  0.203  1.0
  Lu  Lu21  1  0.601  0.927  0.203  1.0
  Ge  Ge22  1  0.000  0.356  0.000  1.0
  Ge  Ge23  1  0.000  0.644  0.000  1.0
  Ge  Ge24  1  0.356  0.000  0.000  1.0
  Ge  Ge25  1  0.644  0.000  0.000  1.0
  Ge  Ge26  1  0.117  0.117  0.234  1.0
  Ge  Ge27  1  0.883  0.883  0.766  1.0
  Ge  Ge28  1  0.622  0.378  0.000  1.0
  Ge  Ge29  1  0.378  0.622  0.000  1.0
  Ge  Ge30  1  0.378  0.378  0.000  1.0
  Ge  Ge31  1  0.622  0.622  0.000  1.0
  Ge  Ge32  1  0.750  0.250  0.500  1.0
  Ge  Ge33  1  0.250  0.750  0.500  1.0
  Ge  Ge34  1  0.111  0.528  0.639  1.0
  Ge  Ge35  1  0.528  0.111  0.639  1.0
  Ge  Ge36  1  0.528  0.528  0.639  1.0
  Ge  Ge37  1  0.111  0.111  0.639  1.0
  Ge  Ge38  1  0.889  0.472  0.361  1.0
  Ge  Ge39  1  0.472  0.889  0.361  1.0
  Ge  Ge40  1  0.472  0.472  0.361  1.0
  Ge  Ge41  1  0.889  0.889  0.361  1.0
[/CIF]
.
The compound described by Lu11Ge10 is delta Molybdenum Boride-like structured and crystallizes in the tetragonal I4/mmm space group. There are four inequivalent Lu sites. In the first Lu site, Lu(1) is bonded to one Ge(1), one Ge(2), one Ge(4), and four equivalent Ge(5) atoms to form a mixture of distorted corner, edge, and face-sharing LuGe7 pentagonal bipyramids. In the second Lu site, Lu(2) is bonded in a 7-coordinate geometry to one Ge(3), two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(5) atoms. In the third Lu site, Lu(3) is bonded in a 9-coordinate geometry to one Ge(2), four equivalent Ge(3), and four equivalent Ge(5) atoms. In the fourth Lu site, Lu(4) is bonded in a 7-coordinate geometry to one Ge(4), two equivalent Ge(1), two equivalent Ge(3), and two equivalent Ge(5) atoms. There are five inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to two equivalent Lu(1), two equivalent Lu(2), and four equivalent Lu(4) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to one Lu(3), four equivalent Lu(1), and four equivalent Lu(2) atoms. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to one Lu(2), two equivalent Lu(3), four equivalent Lu(4), and two equivalent Ge(3) atoms. In the fourth Ge site, Ge(4) is bonded in a 8-coordinate geometry to four equivalent Lu(1) and four equivalent Lu(4) atoms. In the fifth Ge site, Ge(5) is bonded in a 9-coordinate geometry to one Lu(2), one Lu(3), two equivalent Lu(4), four equivalent Lu(1), and one Ge(5) atom. is represented by the CIF file [CIF]
data_Lu11Ge10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.649
_cell_length_b   10.649
_cell_length_c   10.950
_cell_angle_alpha   119.094
_cell_angle_beta   119.094
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   901.587
_cell_formula_units_Z   2
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  0.938  0.190  0.380  1.0
  Lu  Lu1  1  0.442  0.190  0.380  1.0
  Lu  Lu2  1  0.190  0.442  0.380  1.0
  Lu  Lu3  1  0.190  0.938  0.380  1.0
  Lu  Lu4  1  0.062  0.810  0.620  1.0
  Lu  Lu5  1  0.558  0.810  0.620  1.0
  Lu  Lu6  1  0.810  0.558  0.620  1.0
  Lu  Lu7  1  0.810  0.062  0.620  1.0
  Lu  Lu8  1  0.823  0.177  0.000  1.0
  Lu  Lu9  1  0.177  0.823  0.000  1.0
  Lu  Lu10  1  0.177  0.177  0.000  1.0
  Lu  Lu11  1  0.823  0.823  0.000  1.0
  Lu  Lu12  1  0.340  0.340  0.680  1.0
  Lu  Lu13  1  0.660  0.660  0.320  1.0
  Lu  Lu14  1  0.073  0.399  0.797  1.0
  Lu  Lu15  1  0.724  0.399  0.797  1.0
  Lu  Lu16  1  0.399  0.724  0.797  1.0
  Lu  Lu17  1  0.399  0.073  0.797  1.0
  Lu  Lu18  1  0.927  0.601  0.203  1.0
  Lu  Lu19  1  0.276  0.601  0.203  1.0
  Lu  Lu20  1  0.601  0.276  0.203  1.0
  Lu  Lu21  1  0.601  0.927  0.203  1.0
  Ge  Ge22  1  0.000  0.356  0.000  1.0
  Ge  Ge23  1  0.000  0.644  0.000  1.0
  Ge  Ge24  1  0.356  0.000  0.000  1.0
  Ge  Ge25  1  0.644  0.000  0.000  1.0
  Ge  Ge26  1  0.117  0.117  0.234  1.0
  Ge  Ge27  1  0.883  0.883  0.766  1.0
  Ge  Ge28  1  0.622  0.378  0.000  1.0
  Ge  Ge29  1  0.378  0.622  0.000  1.0
  Ge  Ge30  1  0.378  0.378  0.000  1.0
  Ge  Ge31  1  0.622  0.622  0.000  1.0
  Ge  Ge32  1  0.750  0.250  0.500  1.0
  Ge  Ge33  1  0.250  0.750  0.500  1.0
  Ge  Ge34  1  0.111  0.528  0.639  1.0
  Ge  Ge35  1  0.528  0.111  0.639  1.0
  Ge  Ge36  1  0.528  0.528  0.639  1.0
  Ge  Ge37  1  0.111  0.111  0.639  1.0
  Ge  Ge38  1  0.889  0.472  0.361  1.0
  Ge  Ge39  1  0.472  0.889  0.361  1.0
  Ge  Ge40  1  0.472  0.472  0.361  1.0
  Ge  Ge41  1  0.889  0.889  0.361  1.0
[/CIF]
.