The material described by Ni19Ge12 crystallizes in the monoclinic C2 space group. There are ten inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 11-coordinate geometry to two equivalent Ni(10), two equivalent Ni(6), two equivalent Ni(7), one Ge(2), two equivalent Ge(3), and two equivalent Ge(5) atoms. In the second Ni site, Ni(2) is bonded in a 11-coordinate geometry to one Ni(10), one Ni(5), one Ni(6), one Ni(7), one Ni(8), one Ni(9), one Ge(1), one Ge(2), one Ge(3), one Ge(6), and one Ge(7) atom. In the third Ni site, Ni(3) is bonded in a 11-coordinate geometry to one Ni(10), one Ni(5), one Ni(6), one Ni(7), one Ni(8), one Ni(9), one Ge(3), one Ge(4), one Ge(5), one Ge(6), and one Ge(7) atom. In the fourth Ni site, Ni(4) is bonded in a 11-coordinate geometry to two equivalent Ni(5), two equivalent Ni(8), two equivalent Ni(9), one Ge(1), one Ge(6), one Ge(7), and two equivalent Ge(4) atoms. In the fifth Ni site, Ni(5) is bonded in a 12-coordinate geometry to one Ni(2), one Ni(3), one Ni(6), one Ni(8), two equivalent Ni(4), one Ge(1), one Ge(3), one Ge(6), one Ge(7), and two equivalent Ge(4) atoms. In the sixth Ni site, Ni(6) is bonded in a 11-coordinate geometry to one Ni(1), one Ni(2), one Ni(3), one Ni(5), one Ni(7), one Ge(2), one Ge(3), one Ge(6), one Ge(7), and two equivalent Ge(5) atoms. In the seventh Ni site, Ni(7) is bonded in a 11-coordinate geometry to one Ni(1), one Ni(2), one Ni(3), one Ni(6), one Ni(8), one Ge(2), one Ge(3), one Ge(6), one Ge(7), and two equivalent Ge(5) atoms. In the eighth Ni site, Ni(8) is bonded to one Ni(2), one Ni(3), one Ni(5), one Ni(7), two equivalent Ni(4), one Ge(1), one Ge(3), one Ge(6), one Ge(7), and two equivalent Ge(4) atoms to form a mixture of distorted corner, edge, and face-sharing NiNi6Ge6 cuboctahedra. In the ninth Ni site, Ni(9) is bonded to one Ni(10), one Ni(2), one Ni(3), one Ni(9), two equivalent Ni(4), one Ge(1), one Ge(3), one Ge(6), one Ge(7), and two equivalent Ge(4) atoms to form a mixture of distorted corner, edge, and face-sharing NiNi6Ge6 cuboctahedra. In the tenth Ni site, Ni(10) is bonded in a 11-coordinate geometry to one Ni(1), one Ni(10), one Ni(2), one Ni(3), one Ni(9), one Ge(2), one Ge(3), one Ge(6), one Ge(7), and two equivalent Ge(5) atoms. There are seven inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 10-coordinate geometry to two equivalent Ni(2), two equivalent Ni(4), two equivalent Ni(5), two equivalent Ni(8), and two equivalent Ni(9) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to one Ni(1), two equivalent Ni(10), two equivalent Ni(2), two equivalent Ni(6), and two equivalent Ni(7) atoms. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to one Ni(1), one Ni(10), one Ni(2), one Ni(3), one Ni(5), one Ni(6), one Ni(7), one Ni(8), and one Ni(9) atom. In the fourth Ge site, Ge(4) is bonded in a 9-coordinate geometry to one Ni(3), two equivalent Ni(4), two equivalent Ni(5), two equivalent Ni(8), and two equivalent Ni(9) atoms. In the fifth Ge site, Ge(5) is bonded in a 8-coordinate geometry to one Ni(1), one Ni(3), two equivalent Ni(10), two equivalent Ni(6), and two equivalent Ni(7) atoms. In the sixth Ge site, Ge(6) is bonded in a 7-coordinate geometry to one Ni(10), one Ni(2), one Ni(3), one Ni(4), one Ni(5), one Ni(6), one Ni(7), one Ni(8), and one Ni(9) atom. In the seventh Ge site, Ge(7) is bonded in a 9-coordinate geometry to one Ni(10), one Ni(2), one Ni(3), one Ni(4), one Ni(5), one Ni(6), one Ni(7), one Ni(8), and one Ni(9) atom. is represented by the CIF file [CIF]
data_Ni19Ge12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.723
_cell_length_b   6.723
_cell_length_c   10.063
_cell_angle_alpha   89.943
_cell_angle_beta   89.943
_cell_angle_gamma   59.890
_symmetry_Int_Tables_number   1
_cell_volume   393.446
_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
  Ni  Ni0  1  0.671  0.329  0.500  1.0
  Ni  Ni1  1  0.005  0.999  0.254  1.0
  Ni  Ni2  1  0.001  0.995  0.746  1.0
  Ni  Ni3  1  0.663  0.668  0.252  1.0
  Ni  Ni4  1  0.332  0.337  0.748  1.0
  Ni  Ni5  1  0.339  0.998  0.004  1.0
  Ni  Ni6  1  0.002  0.661  0.996  1.0
  Ni  Ni7  1  0.667  0.015  0.126  1.0
  Ni  Ni8  1  0.985  0.333  0.874  1.0
  Ni  Ni9  1  0.660  0.002  0.377  1.0
  Ni  Ni10  1  0.998  0.340  0.623  1.0
  Ni  Ni11  1  0.665  0.981  0.624  1.0
  Ni  Ni12  1  0.019  0.335  0.376  1.0
  Ni  Ni13  1  0.669  0.002  0.874  1.0
  Ni  Ni14  1  0.998  0.331  0.126  1.0
  Ni  Ni15  1  0.340  0.649  0.126  1.0
  Ni  Ni16  1  0.351  0.660  0.874  1.0
  Ni  Ni17  1  0.323  0.654  0.377  1.0
  Ni  Ni18  1  0.346  0.677  0.623  1.0
  Ge  Ge19  1  0.974  0.026  0.000  1.0
  Ge  Ge20  1  0.023  0.977  0.500  1.0
  Ge  Ge21  1  0.637  0.332  0.252  1.0
  Ge  Ge22  1  0.668  0.363  0.748  1.0
  Ge  Ge23  1  0.669  0.631  0.002  1.0
  Ge  Ge24  1  0.369  0.331  0.998  1.0
  Ge  Ge25  1  0.671  0.680  0.498  1.0
  Ge  Ge26  1  0.320  0.329  0.502  1.0
  Ge  Ge27  1  0.336  0.036  0.252  1.0
  Ge  Ge28  1  0.964  0.664  0.748  1.0
  Ge  Ge29  1  0.364  0.972  0.752  1.0
  Ge  Ge30  1  0.028  0.636  0.248  1.0
[/CIF]
.
The material described by Ni19Ge12 crystallizes in the monoclinic C2 space group. There are ten inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 11-coordinate geometry to two equivalent Ni(10), two equivalent Ni(6), two equivalent Ni(7), one Ge(2), two equivalent Ge(3), and two equivalent Ge(5) atoms. In the second Ni site, Ni(2) is bonded in a 11-coordinate geometry to one Ni(10), one Ni(5), one Ni(6), one Ni(7), one Ni(8), one Ni(9), one Ge(1), one Ge(2), one Ge(3), one Ge(6), and one Ge(7) atom. In the third Ni site, Ni(3) is bonded in a 11-coordinate geometry to one Ni(10), one Ni(5), one Ni(6), one Ni(7), one Ni(8), one Ni(9), one Ge(3), one Ge(4), one Ge(5), one Ge(6), and one Ge(7) atom. In the fourth Ni site, Ni(4) is bonded in a 11-coordinate geometry to two equivalent Ni(5), two equivalent Ni(8), two equivalent Ni(9), one Ge(1), one Ge(6), one Ge(7), and two equivalent Ge(4) atoms. In the fifth Ni site, Ni(5) is bonded in a 12-coordinate geometry to one Ni(2), one Ni(3), one Ni(6), one Ni(8), two equivalent Ni(4), one Ge(1), one Ge(3), one Ge(6), one Ge(7), and two equivalent Ge(4) atoms. In the sixth Ni site, Ni(6) is bonded in a 11-coordinate geometry to one Ni(1), one Ni(2), one Ni(3), one Ni(5), one Ni(7), one Ge(2), one Ge(3), one Ge(6), one Ge(7), and two equivalent Ge(5) atoms. In the seventh Ni site, Ni(7) is bonded in a 11-coordinate geometry to one Ni(1), one Ni(2), one Ni(3), one Ni(6), one Ni(8), one Ge(2), one Ge(3), one Ge(6), one Ge(7), and two equivalent Ge(5) atoms. In the eighth Ni site, Ni(8) is bonded to one Ni(2), one Ni(3), one Ni(5), one Ni(7), two equivalent Ni(4), one Ge(1), one Ge(3), one Ge(6), one Ge(7), and two equivalent Ge(4) atoms to form a mixture of distorted corner, edge, and face-sharing NiNi6Ge6 cuboctahedra. In the ninth Ni site, Ni(9) is bonded to one Ni(10), one Ni(2), one Ni(3), one Ni(9), two equivalent Ni(4), one Ge(1), one Ge(3), one Ge(6), one Ge(7), and two equivalent Ge(4) atoms to form a mixture of distorted corner, edge, and face-sharing NiNi6Ge6 cuboctahedra. In the tenth Ni site, Ni(10) is bonded in a 11-coordinate geometry to one Ni(1), one Ni(10), one Ni(2), one Ni(3), one Ni(9), one Ge(2), one Ge(3), one Ge(6), one Ge(7), and two equivalent Ge(5) atoms. There are seven inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 10-coordinate geometry to two equivalent Ni(2), two equivalent Ni(4), two equivalent Ni(5), two equivalent Ni(8), and two equivalent Ni(9) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to one Ni(1), two equivalent Ni(10), two equivalent Ni(2), two equivalent Ni(6), and two equivalent Ni(7) atoms. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to one Ni(1), one Ni(10), one Ni(2), one Ni(3), one Ni(5), one Ni(6), one Ni(7), one Ni(8), and one Ni(9) atom. In the fourth Ge site, Ge(4) is bonded in a 9-coordinate geometry to one Ni(3), two equivalent Ni(4), two equivalent Ni(5), two equivalent Ni(8), and two equivalent Ni(9) atoms. In the fifth Ge site, Ge(5) is bonded in a 8-coordinate geometry to one Ni(1), one Ni(3), two equivalent Ni(10), two equivalent Ni(6), and two equivalent Ni(7) atoms. In the sixth Ge site, Ge(6) is bonded in a 7-coordinate geometry to one Ni(10), one Ni(2), one Ni(3), one Ni(4), one Ni(5), one Ni(6), one Ni(7), one Ni(8), and one Ni(9) atom. In the seventh Ge site, Ge(7) is bonded in a 9-coordinate geometry to one Ni(10), one Ni(2), one Ni(3), one Ni(4), one Ni(5), one Ni(6), one Ni(7), one Ni(8), and one Ni(9) atom. is represented by the CIF file [CIF]
data_Ni19Ge12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.723
_cell_length_b   6.723
_cell_length_c   10.063
_cell_angle_alpha   89.943
_cell_angle_beta   89.943
_cell_angle_gamma   59.890
_symmetry_Int_Tables_number   1
_cell_volume   393.446
_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
  Ni  Ni0  1  0.671  0.329  0.500  1.0
  Ni  Ni1  1  0.005  0.999  0.254  1.0
  Ni  Ni2  1  0.001  0.995  0.746  1.0
  Ni  Ni3  1  0.663  0.668  0.252  1.0
  Ni  Ni4  1  0.332  0.337  0.748  1.0
  Ni  Ni5  1  0.339  0.998  0.004  1.0
  Ni  Ni6  1  0.002  0.661  0.996  1.0
  Ni  Ni7  1  0.667  0.015  0.126  1.0
  Ni  Ni8  1  0.985  0.333  0.874  1.0
  Ni  Ni9  1  0.660  0.002  0.377  1.0
  Ni  Ni10  1  0.998  0.340  0.623  1.0
  Ni  Ni11  1  0.665  0.981  0.624  1.0
  Ni  Ni12  1  0.019  0.335  0.376  1.0
  Ni  Ni13  1  0.669  0.002  0.874  1.0
  Ni  Ni14  1  0.998  0.331  0.126  1.0
  Ni  Ni15  1  0.340  0.649  0.126  1.0
  Ni  Ni16  1  0.351  0.660  0.874  1.0
  Ni  Ni17  1  0.323  0.654  0.377  1.0
  Ni  Ni18  1  0.346  0.677  0.623  1.0
  Ge  Ge19  1  0.974  0.026  0.000  1.0
  Ge  Ge20  1  0.023  0.977  0.500  1.0
  Ge  Ge21  1  0.637  0.332  0.252  1.0
  Ge  Ge22  1  0.668  0.363  0.748  1.0
  Ge  Ge23  1  0.669  0.631  0.002  1.0
  Ge  Ge24  1  0.369  0.331  0.998  1.0
  Ge  Ge25  1  0.671  0.680  0.498  1.0
  Ge  Ge26  1  0.320  0.329  0.502  1.0
  Ge  Ge27  1  0.336  0.036  0.252  1.0
  Ge  Ge28  1  0.964  0.664  0.748  1.0
  Ge  Ge29  1  0.364  0.972  0.752  1.0
  Ge  Ge30  1  0.028  0.636  0.248  1.0
[/CIF]
.