The structure described by Ti20(Ge3Sb)3 crystallizes in the monoclinic Pm space group. There are sixteen inequivalent Ti sites. In the first Ti site, Ti(1) is bonded in a 6-coordinate geometry to one Ge(2), one Ge(5), one Ge(6), one Ge(8), one Sb(1), and one Sb(3) atom. In the second Ti site, Ti(2) is bonded in a 6-coordinate geometry to one Ge(1), one Ge(3), one Ge(4), one Ge(7), one Ge(9), and one Sb(2) atom. In the third Ti site, Ti(3) is bonded in a 8-coordinate geometry to two equivalent Ti(3), one Ge(2), one Ge(4), one Ge(6), one Ge(8), one Sb(2), and one Sb(3) atom. In the fourth Ti site, Ti(4) is bonded in a 6-coordinate geometry to one Ge(1), one Ge(3), one Ge(5), one Ge(7), one Ge(9), and one Sb(1) atom. In the fifth Ti site, Ti(5) is bonded in a 5-coordinate geometry to one Ge(1), one Ge(2), two equivalent Ge(5), and one Sb(1) atom. In the sixth Ti site, Ti(6) is bonded in a 5-coordinate geometry to one Ge(3), two equivalent Ge(4), one Sb(2), and one Sb(3) atom. In the seventh Ti site, Ti(7) is bonded in a 5-coordinate geometry to one Ge(2), two equivalent Ge(6), one Sb(1), and one Sb(3) atom. In the eighth Ti site, Ti(8) is bonded in a 5-coordinate geometry to one Ge(1), one Ge(3), two equivalent Ge(7), and one Sb(2) atom. In the ninth Ti site, Ti(9) is bonded in a 5-coordinate geometry to one Ge(2), two equivalent Ge(8), one Sb(2), and one Sb(3) atom. In the tenth Ti site, Ti(10) is bonded in a 5-coordinate geometry to one Ge(1), one Ge(3), two equivalent Ge(9), and one Sb(1) atom. In the eleventh Ti site, Ti(11) is bonded in a 5-coordinate geometry to one Ge(5), one Ge(6), one Ge(9), and two equivalent Sb(1) atoms. In the twelfth Ti site, Ti(12) is bonded in a 5-coordinate geometry to one Ge(4), one Ge(7), one Ge(8), and two equivalent Sb(2) atoms. In the thirteenth Ti site, Ti(13) is bonded in a 5-coordinate geometry to one Ge(4), one Ge(6), one Ge(8), and two equivalent Sb(3) atoms. In the fourteenth Ti site, Ti(14) is bonded in a 5-coordinate geometry to one Ge(5), one Ge(7), one Ge(9), and two equivalent Ge(1) atoms. In the fifteenth Ti site, Ti(15) is bonded in a 5-coordinate geometry to one Ge(5), one Ge(6), one Ge(8), and two equivalent Ge(2) atoms. In the sixteenth Ti site, Ti(16) is bonded in a 5-coordinate geometry to one Ge(4), one Ge(7), one Ge(9), and two equivalent Ge(3) atoms. There are nine inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to one Ti(10), one Ti(5), one Ti(8), two equivalent Ti(14), two equivalent Ti(2), and two equivalent Ti(4) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to one Ti(5), one Ti(7), one Ti(9), two equivalent Ti(1), two equivalent Ti(15), and two equivalent Ti(3) atoms. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to one Ti(10), one Ti(6), one Ti(8), two equivalent Ti(16), two equivalent Ti(2), and two equivalent Ti(4) atoms. In the fourth Ge site, Ge(4) is bonded in a 9-coordinate geometry to one Ti(12), one Ti(13), one Ti(16), two equivalent Ti(2), two equivalent Ti(3), and two equivalent Ti(6) atoms. In the fifth Ge site, Ge(5) is bonded in a 9-coordinate geometry to one Ti(11), one Ti(14), one Ti(15), two equivalent Ti(1), two equivalent Ti(4), and two equivalent Ti(5) atoms. In the sixth Ge site, Ge(6) is bonded in a 9-coordinate geometry to one Ti(11), one Ti(13), one Ti(15), two equivalent Ti(1), two equivalent Ti(3), and two equivalent Ti(7) atoms. In the seventh Ge site, Ge(7) is bonded in a 9-coordinate geometry to one Ti(12), one Ti(14), one Ti(16), two equivalent Ti(2), two equivalent Ti(4), and two equivalent Ti(8) atoms. In the eighth Ge site, Ge(8) is bonded in a 9-coordinate geometry to one Ti(12), one Ti(13), one Ti(15), two equivalent Ti(1), two equivalent Ti(3), and two equivalent Ti(9) atoms. In the ninth Ge site, Ge(9) is bonded in a 9-coordinate geometry to one Ti(11), one Ti(14), one Ti(16), two equivalent Ti(10), two equivalent Ti(2), and two equivalent Ti(4) atoms. There are three inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 9-coordinate geometry to one Ti(10), one Ti(5), one Ti(7), two equivalent Ti(1), two equivalent Ti(11), and two equivalent Ti(4) atoms. In the second Sb site, Sb(2) is bonded in a 9-coordinate geometry to one Ti(6), one Ti(8), one Ti(9), two equivalent Ti(12), two equivalent Ti(2), and two equivalent Ti(3) atoms. In the third Sb site, Sb(3) is bonded in a 9-coordinate geometry to one Ti(6), one Ti(7), one Ti(9), two equivalent Ti(1), two equivalent Ti(13), and two equivalent Ti(3) atoms. is represented by the CIF file [CIF]
data_Ti20(Ge3Sb)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.251
_cell_length_b   7.674
_cell_length_c   13.410
_cell_angle_alpha   89.994
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   540.333
_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
  Ti  Ti0  1  0.744  0.007  0.333  1.0
  Ti  Ti1  1  0.747  0.502  0.829  1.0
  Ti  Ti2  1  0.744  0.494  0.169  1.0
  Ti  Ti3  1  0.747  0.003  0.671  1.0
  Ti  Ti4  1  0.256  0.494  0.169  1.0
  Ti  Ti5  1  0.253  0.003  0.671  1.0
  Ti  Ti6  1  0.256  0.007  0.333  1.0
  Ti  Ti7  1  0.253  0.502  0.829  1.0
  Ti  Ti8  1  0.000  0.262  0.500  1.0
  Ti  Ti9  1  0.000  0.760  0.994  1.0
  Ti  Ti10  1  0.000  0.613  0.375  1.0
  Ti  Ti11  1  0.000  0.119  0.868  1.0
  Ti  Ti12  1  0.000  0.130  0.130  1.0
  Ti  Ti13  1  0.000  0.619  0.631  1.0
  Ti  Ti14  1  0.500  0.745  0.500  1.0
  Ti  Ti15  1  0.500  0.244  0.000  1.0
  Ti  Ti16  1  0.500  0.875  0.125  1.0
  Ti  Ti17  1  0.500  0.374  0.628  1.0
  Ti  Ti18  1  0.500  0.372  0.372  1.0
  Ti  Ti19  1  0.500  0.873  0.872  1.0
  Ge  Ge20  1  0.000  0.303  0.695  1.0
  Ge  Ge21  1  0.000  0.303  0.306  1.0
  Ge  Ge22  1  0.000  0.803  0.803  1.0
  Ge  Ge23  1  0.500  0.613  0.999  1.0
  Ge  Ge24  1  0.500  0.115  0.502  1.0
  Ge  Ge25  1  0.500  0.695  0.307  1.0
  Ge  Ge26  1  0.500  0.196  0.807  1.0
  Ge  Ge27  1  0.500  0.193  0.194  1.0
  Ge  Ge28  1  0.500  0.696  0.693  1.0
  Sb  Sb29  1  0.000  0.889  0.501  1.0
  Sb  Sb30  1  0.000  0.391  0.998  1.0
  Sb  Sb31  1  0.000  0.803  0.195  1.0
[/CIF]
.
The structure described by Ti20(Ge3Sb)3 crystallizes in the monoclinic Pm space group. There are sixteen inequivalent Ti sites. In the first Ti site, Ti(1) is bonded in a 6-coordinate geometry to one Ge(2), one Ge(5), one Ge(6), one Ge(8), one Sb(1), and one Sb(3) atom. In the second Ti site, Ti(2) is bonded in a 6-coordinate geometry to one Ge(1), one Ge(3), one Ge(4), one Ge(7), one Ge(9), and one Sb(2) atom. In the third Ti site, Ti(3) is bonded in a 8-coordinate geometry to two equivalent Ti(3), one Ge(2), one Ge(4), one Ge(6), one Ge(8), one Sb(2), and one Sb(3) atom. In the fourth Ti site, Ti(4) is bonded in a 6-coordinate geometry to one Ge(1), one Ge(3), one Ge(5), one Ge(7), one Ge(9), and one Sb(1) atom. In the fifth Ti site, Ti(5) is bonded in a 5-coordinate geometry to one Ge(1), one Ge(2), two equivalent Ge(5), and one Sb(1) atom. In the sixth Ti site, Ti(6) is bonded in a 5-coordinate geometry to one Ge(3), two equivalent Ge(4), one Sb(2), and one Sb(3) atom. In the seventh Ti site, Ti(7) is bonded in a 5-coordinate geometry to one Ge(2), two equivalent Ge(6), one Sb(1), and one Sb(3) atom. In the eighth Ti site, Ti(8) is bonded in a 5-coordinate geometry to one Ge(1), one Ge(3), two equivalent Ge(7), and one Sb(2) atom. In the ninth Ti site, Ti(9) is bonded in a 5-coordinate geometry to one Ge(2), two equivalent Ge(8), one Sb(2), and one Sb(3) atom. In the tenth Ti site, Ti(10) is bonded in a 5-coordinate geometry to one Ge(1), one Ge(3), two equivalent Ge(9), and one Sb(1) atom. In the eleventh Ti site, Ti(11) is bonded in a 5-coordinate geometry to one Ge(5), one Ge(6), one Ge(9), and two equivalent Sb(1) atoms. In the twelfth Ti site, Ti(12) is bonded in a 5-coordinate geometry to one Ge(4), one Ge(7), one Ge(8), and two equivalent Sb(2) atoms. In the thirteenth Ti site, Ti(13) is bonded in a 5-coordinate geometry to one Ge(4), one Ge(6), one Ge(8), and two equivalent Sb(3) atoms. In the fourteenth Ti site, Ti(14) is bonded in a 5-coordinate geometry to one Ge(5), one Ge(7), one Ge(9), and two equivalent Ge(1) atoms. In the fifteenth Ti site, Ti(15) is bonded in a 5-coordinate geometry to one Ge(5), one Ge(6), one Ge(8), and two equivalent Ge(2) atoms. In the sixteenth Ti site, Ti(16) is bonded in a 5-coordinate geometry to one Ge(4), one Ge(7), one Ge(9), and two equivalent Ge(3) atoms. There are nine inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to one Ti(10), one Ti(5), one Ti(8), two equivalent Ti(14), two equivalent Ti(2), and two equivalent Ti(4) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to one Ti(5), one Ti(7), one Ti(9), two equivalent Ti(1), two equivalent Ti(15), and two equivalent Ti(3) atoms. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to one Ti(10), one Ti(6), one Ti(8), two equivalent Ti(16), two equivalent Ti(2), and two equivalent Ti(4) atoms. In the fourth Ge site, Ge(4) is bonded in a 9-coordinate geometry to one Ti(12), one Ti(13), one Ti(16), two equivalent Ti(2), two equivalent Ti(3), and two equivalent Ti(6) atoms. In the fifth Ge site, Ge(5) is bonded in a 9-coordinate geometry to one Ti(11), one Ti(14), one Ti(15), two equivalent Ti(1), two equivalent Ti(4), and two equivalent Ti(5) atoms. In the sixth Ge site, Ge(6) is bonded in a 9-coordinate geometry to one Ti(11), one Ti(13), one Ti(15), two equivalent Ti(1), two equivalent Ti(3), and two equivalent Ti(7) atoms. In the seventh Ge site, Ge(7) is bonded in a 9-coordinate geometry to one Ti(12), one Ti(14), one Ti(16), two equivalent Ti(2), two equivalent Ti(4), and two equivalent Ti(8) atoms. In the eighth Ge site, Ge(8) is bonded in a 9-coordinate geometry to one Ti(12), one Ti(13), one Ti(15), two equivalent Ti(1), two equivalent Ti(3), and two equivalent Ti(9) atoms. In the ninth Ge site, Ge(9) is bonded in a 9-coordinate geometry to one Ti(11), one Ti(14), one Ti(16), two equivalent Ti(10), two equivalent Ti(2), and two equivalent Ti(4) atoms. There are three inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 9-coordinate geometry to one Ti(10), one Ti(5), one Ti(7), two equivalent Ti(1), two equivalent Ti(11), and two equivalent Ti(4) atoms. In the second Sb site, Sb(2) is bonded in a 9-coordinate geometry to one Ti(6), one Ti(8), one Ti(9), two equivalent Ti(12), two equivalent Ti(2), and two equivalent Ti(3) atoms. In the third Sb site, Sb(3) is bonded in a 9-coordinate geometry to one Ti(6), one Ti(7), one Ti(9), two equivalent Ti(1), two equivalent Ti(13), and two equivalent Ti(3) atoms. is represented by the CIF file [CIF]
data_Ti20(Ge3Sb)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.251
_cell_length_b   7.674
_cell_length_c   13.410
_cell_angle_alpha   89.994
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   540.333
_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
  Ti  Ti0  1  0.744  0.007  0.333  1.0
  Ti  Ti1  1  0.747  0.502  0.829  1.0
  Ti  Ti2  1  0.744  0.494  0.169  1.0
  Ti  Ti3  1  0.747  0.003  0.671  1.0
  Ti  Ti4  1  0.256  0.494  0.169  1.0
  Ti  Ti5  1  0.253  0.003  0.671  1.0
  Ti  Ti6  1  0.256  0.007  0.333  1.0
  Ti  Ti7  1  0.253  0.502  0.829  1.0
  Ti  Ti8  1  0.000  0.262  0.500  1.0
  Ti  Ti9  1  0.000  0.760  0.994  1.0
  Ti  Ti10  1  0.000  0.613  0.375  1.0
  Ti  Ti11  1  0.000  0.119  0.868  1.0
  Ti  Ti12  1  0.000  0.130  0.130  1.0
  Ti  Ti13  1  0.000  0.619  0.631  1.0
  Ti  Ti14  1  0.500  0.745  0.500  1.0
  Ti  Ti15  1  0.500  0.244  0.000  1.0
  Ti  Ti16  1  0.500  0.875  0.125  1.0
  Ti  Ti17  1  0.500  0.374  0.628  1.0
  Ti  Ti18  1  0.500  0.372  0.372  1.0
  Ti  Ti19  1  0.500  0.873  0.872  1.0
  Ge  Ge20  1  0.000  0.303  0.695  1.0
  Ge  Ge21  1  0.000  0.303  0.306  1.0
  Ge  Ge22  1  0.000  0.803  0.803  1.0
  Ge  Ge23  1  0.500  0.613  0.999  1.0
  Ge  Ge24  1  0.500  0.115  0.502  1.0
  Ge  Ge25  1  0.500  0.695  0.307  1.0
  Ge  Ge26  1  0.500  0.196  0.807  1.0
  Ge  Ge27  1  0.500  0.193  0.194  1.0
  Ge  Ge28  1  0.500  0.696  0.693  1.0
  Sb  Sb29  1  0.000  0.889  0.501  1.0
  Sb  Sb30  1  0.000  0.391  0.998  1.0
  Sb  Sb31  1  0.000  0.803  0.195  1.0
[/CIF]
.