The compound described by Tm11Ge10 is delta Molybdenum Boride-like structured and crystallizes in the tetragonal I4/mmm space group. There are four inequivalent Tm sites. In the first Tm site, Tm(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 TmGe7 pentagonal bipyramids. In the second Tm site, Tm(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 Tm site, Tm(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 Tm site, Tm(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 Tm(1), two equivalent Tm(2), and four equivalent Tm(4) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to one Tm(3), four equivalent Tm(1), and four equivalent Tm(2) atoms. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to one Tm(2), two equivalent Tm(3), four equivalent Tm(4), and two equivalent Ge(3) atoms. In the fourth Ge site, Ge(4) is bonded in a 8-coordinate geometry to four equivalent Tm(1) and four equivalent Tm(4) atoms. In the fifth Ge site, Ge(5) is bonded in a 9-coordinate geometry to one Tm(2), one Tm(3), two equivalent Tm(4), four equivalent Tm(1), and one Ge(5) atom. is represented by the CIF file [CIF]
data_Tm11Ge10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.061
_cell_length_b   11.061
_cell_length_c   11.061
_cell_angle_alpha   121.989
_cell_angle_beta   121.989
_cell_angle_gamma   86.589
_symmetry_Int_Tables_number   1
_cell_volume   926.286
_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
  Tm  Tm0  1  0.810  0.062  0.252  1.0
  Tm  Tm1  1  0.810  0.557  0.748  1.0
  Tm  Tm2  1  0.062  0.810  0.252  1.0
  Tm  Tm3  1  0.557  0.810  0.748  1.0
  Tm  Tm4  1  0.190  0.938  0.748  1.0
  Tm  Tm5  1  0.190  0.443  0.252  1.0
  Tm  Tm6  1  0.938  0.190  0.748  1.0
  Tm  Tm7  1  0.443  0.190  0.252  1.0
  Tm  Tm8  1  0.177  0.177  0.354  1.0
  Tm  Tm9  1  0.823  0.823  0.646  1.0
  Tm  Tm10  1  0.177  0.823  0.000  1.0
  Tm  Tm11  1  0.823  0.177  0.000  1.0
  Tm  Tm12  1  0.660  0.660  0.000  1.0
  Tm  Tm13  1  0.340  0.340  0.000  1.0
  Tm  Tm14  1  0.601  0.926  0.325  1.0
  Tm  Tm15  1  0.601  0.277  0.675  1.0
  Tm  Tm16  1  0.926  0.601  0.325  1.0
  Tm  Tm17  1  0.277  0.601  0.675  1.0
  Tm  Tm18  1  0.399  0.074  0.675  1.0
  Tm  Tm19  1  0.399  0.723  0.325  1.0
  Tm  Tm20  1  0.074  0.399  0.675  1.0
  Tm  Tm21  1  0.723  0.399  0.325  1.0
  Ge  Ge22  1  0.357  0.000  0.357  1.0
  Ge  Ge23  1  0.643  0.000  0.643  1.0
  Ge  Ge24  1  0.000  0.643  0.643  1.0
  Ge  Ge25  1  0.000  0.357  0.357  1.0
  Ge  Ge26  1  0.884  0.884  0.000  1.0
  Ge  Ge27  1  0.116  0.116  0.000  1.0
  Ge  Ge28  1  0.379  0.379  0.759  1.0
  Ge  Ge29  1  0.621  0.621  0.241  1.0
  Ge  Ge30  1  0.379  0.621  0.000  1.0
  Ge  Ge31  1  0.621  0.379  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  0.890  0.890  0.417  1.0
  Ge  Ge35  1  0.473  0.473  0.583  1.0
  Ge  Ge36  1  0.890  0.473  0.000  1.0
  Ge  Ge37  1  0.473  0.890  0.000  1.0
  Ge  Ge38  1  0.110  0.110  0.583  1.0
  Ge  Ge39  1  0.527  0.527  0.417  1.0
  Ge  Ge40  1  0.110  0.527  0.000  1.0
  Ge  Ge41  1  0.527  0.110  0.000  1.0
[/CIF]
.
The compound described by Tm11Ge10 is delta Molybdenum Boride-like structured and crystallizes in the tetragonal I4/mmm space group. There are four inequivalent Tm sites. In the first Tm site, Tm(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 TmGe7 pentagonal bipyramids. In the second Tm site, Tm(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 Tm site, Tm(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 Tm site, Tm(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 Tm(1), two equivalent Tm(2), and four equivalent Tm(4) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to one Tm(3), four equivalent Tm(1), and four equivalent Tm(2) atoms. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to one Tm(2), two equivalent Tm(3), four equivalent Tm(4), and two equivalent Ge(3) atoms. In the fourth Ge site, Ge(4) is bonded in a 8-coordinate geometry to four equivalent Tm(1) and four equivalent Tm(4) atoms. In the fifth Ge site, Ge(5) is bonded in a 9-coordinate geometry to one Tm(2), one Tm(3), two equivalent Tm(4), four equivalent Tm(1), and one Ge(5) atom. is represented by the CIF file [CIF]
data_Tm11Ge10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.061
_cell_length_b   11.061
_cell_length_c   11.061
_cell_angle_alpha   121.989
_cell_angle_beta   121.989
_cell_angle_gamma   86.589
_symmetry_Int_Tables_number   1
_cell_volume   926.286
_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
  Tm  Tm0  1  0.810  0.062  0.252  1.0
  Tm  Tm1  1  0.810  0.557  0.748  1.0
  Tm  Tm2  1  0.062  0.810  0.252  1.0
  Tm  Tm3  1  0.557  0.810  0.748  1.0
  Tm  Tm4  1  0.190  0.938  0.748  1.0
  Tm  Tm5  1  0.190  0.443  0.252  1.0
  Tm  Tm6  1  0.938  0.190  0.748  1.0
  Tm  Tm7  1  0.443  0.190  0.252  1.0
  Tm  Tm8  1  0.177  0.177  0.354  1.0
  Tm  Tm9  1  0.823  0.823  0.646  1.0
  Tm  Tm10  1  0.177  0.823  0.000  1.0
  Tm  Tm11  1  0.823  0.177  0.000  1.0
  Tm  Tm12  1  0.660  0.660  0.000  1.0
  Tm  Tm13  1  0.340  0.340  0.000  1.0
  Tm  Tm14  1  0.601  0.926  0.325  1.0
  Tm  Tm15  1  0.601  0.277  0.675  1.0
  Tm  Tm16  1  0.926  0.601  0.325  1.0
  Tm  Tm17  1  0.277  0.601  0.675  1.0
  Tm  Tm18  1  0.399  0.074  0.675  1.0
  Tm  Tm19  1  0.399  0.723  0.325  1.0
  Tm  Tm20  1  0.074  0.399  0.675  1.0
  Tm  Tm21  1  0.723  0.399  0.325  1.0
  Ge  Ge22  1  0.357  0.000  0.357  1.0
  Ge  Ge23  1  0.643  0.000  0.643  1.0
  Ge  Ge24  1  0.000  0.643  0.643  1.0
  Ge  Ge25  1  0.000  0.357  0.357  1.0
  Ge  Ge26  1  0.884  0.884  0.000  1.0
  Ge  Ge27  1  0.116  0.116  0.000  1.0
  Ge  Ge28  1  0.379  0.379  0.759  1.0
  Ge  Ge29  1  0.621  0.621  0.241  1.0
  Ge  Ge30  1  0.379  0.621  0.000  1.0
  Ge  Ge31  1  0.621  0.379  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  0.890  0.890  0.417  1.0
  Ge  Ge35  1  0.473  0.473  0.583  1.0
  Ge  Ge36  1  0.890  0.473  0.000  1.0
  Ge  Ge37  1  0.473  0.890  0.000  1.0
  Ge  Ge38  1  0.110  0.110  0.583  1.0
  Ge  Ge39  1  0.527  0.527  0.417  1.0
  Ge  Ge40  1  0.110  0.527  0.000  1.0
  Ge  Ge41  1  0.527  0.110  0.000  1.0
[/CIF]
.