The crystal structure described by Ni15Al4Ge is Uranium Silicide-derived structured and crystallizes in the tetragonal P4/mmm space group. There are seven inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to eight Ni(4,4) and four equivalent Ge(1) atoms to form NiNi8Ge4 cuboctahedra that share corners with four equivalent Ni(1)Ni8Ge4 cuboctahedra; corners with eight equivalent Ni(2)Al4Ni8 cuboctahedra; edges with eight equivalent Al(1)Ni12 cuboctahedra; edges with sixteen Ni(4,4)Al2Ni8Ge2 cuboctahedra; faces with two equivalent Ni(2)Al4Ni8 cuboctahedra; faces with four equivalent Ni(1)Ni8Ge4 cuboctahedra; faces with four equivalent Ge(1)Ni12 cuboctahedra; and faces with eight Ni(4,4)Al2Ni8Ge2 cuboctahedra. In the second Ni site, Ni(2) is bonded to four equivalent Ni(4), four equivalent Ni(5), and four equivalent Al(1) atoms to form NiAl4Ni8 cuboctahedra that share corners with four equivalent Ni(2)Al4Ni8 cuboctahedra, corners with four equivalent Ni(3)Al4Ni8 cuboctahedra, corners with four equivalent Ni(1)Ni8Ge4 cuboctahedra, edges with four equivalent Al(2)Ni12 cuboctahedra, edges with four equivalent Ge(1)Ni12 cuboctahedra, edges with eight equivalent Ni(4)Al2Ni8Ge2 cuboctahedra, edges with eight equivalent Ni(5)Al4Ni8 cuboctahedra,  a faceface with one Ni(3)Al4Ni8 cuboctahedra,  a faceface with one Ni(1)Ni8Ge4 cuboctahedra, faces with four equivalent Ni(4)Al2Ni8Ge2 cuboctahedra, faces with four equivalent Ni(2)Al4Ni8 cuboctahedra, faces with four equivalent Ni(5)Al4Ni8 cuboctahedra, and faces with four equivalent Al(1)Ni12 cuboctahedra. In the third Ni site, Ni(3) is bonded to four equivalent Ni(5), four equivalent Ni(6), and four equivalent Al(2) atoms to form NiAl4Ni8 cuboctahedra that share corners with four equivalent Ni(2)Al4Ni8 cuboctahedra, corners with eight equivalent Ni(3)Al4Ni8 cuboctahedra, edges with four equivalent Al(1)Ni12 cuboctahedra, edges with four equivalent Al(2)Ni12 cuboctahedra, edges with eight equivalent Ni(5)Al4Ni8 cuboctahedra, edges with eight equivalent Ni(6)Al4Ni8 cuboctahedra,  a faceface with one Ni(2)Al4Ni8 cuboctahedra, faces with four equivalent Ni(5)Al4Ni8 cuboctahedra, faces with four equivalent Ni(6)Al4Ni8 cuboctahedra, faces with four equivalent Al(2)Ni12 cuboctahedra, and faces with five equivalent Ni(3)Al4Ni8 cuboctahedra. In the fourth Ni site, Ni(4) is bonded to two equivalent Ni(1), two equivalent Ni(2), four equivalent Ni(4), two equivalent Al(1), and two equivalent Ge(1) atoms to form NiAl2Ni8Ge2 cuboctahedra that share corners with four equivalent Ni(5)Al4Ni8 cuboctahedra; corners with eight Ni(4,4)Al2Ni8Ge2 cuboctahedra; edges with four equivalent Ni(4)Al2Ni8Ge2 cuboctahedra; edges with four equivalent Ni(2)Al4Ni8 cuboctahedra; edges with four equivalent Ni(5)Al4Ni8 cuboctahedra; edges with four equivalent Ni(1)Ni8Ge4 cuboctahedra; edges with four equivalent Al(1)Ni12 cuboctahedra; edges with four equivalent Ge(1)Ni12 cuboctahedra;  a faceface with one Ni(5)Al4Ni8 cuboctahedra; faces with two equivalent Ni(2)Al4Ni8 cuboctahedra; faces with two equivalent Ni(1)Ni8Ge4 cuboctahedra; faces with two equivalent Al(1)Ni12 cuboctahedra; faces with two equivalent Ge(1)Ni12 cuboctahedra; and faces with nine Ni(4,4)Al2Ni8Ge2 cuboctahedra. In the fifth Ni site, Ni(5) is bonded to two equivalent Ni(2), two equivalent Ni(3), four equivalent Ni(5), two equivalent Al(1), and two equivalent Al(2) atoms to form NiAl4Ni8 cuboctahedra that share corners with four equivalent Ni(4)Al2Ni8Ge2 cuboctahedra, corners with four equivalent Ni(5)Al4Ni8 cuboctahedra, corners with four equivalent Ni(6)Al4Ni8 cuboctahedra, edges with four equivalent Ni(4)Al2Ni8Ge2 cuboctahedra, edges with four equivalent Ni(2)Al4Ni8 cuboctahedra, edges with four equivalent Ni(3)Al4Ni8 cuboctahedra, edges with four equivalent Ni(6)Al4Ni8 cuboctahedra, edges with four equivalent Al(1)Ni12 cuboctahedra, edges with four equivalent Al(2)Ni12 cuboctahedra,  a faceface with one Ni(4)Al2Ni8Ge2 cuboctahedra,  a faceface with one Ni(6)Al4Ni8 cuboctahedra, faces with two equivalent Ni(2)Al4Ni8 cuboctahedra, faces with two equivalent Ni(3)Al4Ni8 cuboctahedra, faces with two equivalent Al(1)Ni12 cuboctahedra, faces with two equivalent Al(2)Ni12 cuboctahedra, and faces with eight equivalent Ni(5)Al4Ni8 cuboctahedra. In the sixth Ni site, Ni(6) is bonded to four equivalent Ni(3), four equivalent Ni(6), and four equivalent Al(2) atoms to form NiAl4Ni8 cuboctahedra that share corners with four equivalent Ni(6)Al4Ni8 cuboctahedra, corners with eight equivalent Ni(5)Al4Ni8 cuboctahedra, edges with eight equivalent Ni(3)Al4Ni8 cuboctahedra, edges with eight equivalent Ni(5)Al4Ni8 cuboctahedra, edges with eight equivalent Al(2)Ni12 cuboctahedra, faces with two equivalent Ni(5)Al4Ni8 cuboctahedra, faces with four equivalent Ni(3)Al4Ni8 cuboctahedra, faces with four equivalent Al(2)Ni12 cuboctahedra, and faces with eight equivalent Ni(6)Al4Ni8 cuboctahedra. In the seventh Ni site, Ni(4) is bonded to two equivalent Ni(1), two equivalent Ni(2), four equivalent Ni(4), two equivalent Al(1), and two equivalent Ge(1) atoms to form NiAl2Ni8Ge2 cuboctahedra that share corners with four equivalent Ni(5)Al4Ni8 cuboctahedra; corners with eight Ni(4,4)Al2Ni8Ge2 cuboctahedra; edges with four equivalent Ni(4)Al2Ni8Ge2 cuboctahedra; edges with four equivalent Ni(2)Al4Ni8 cuboctahedra; edges with four equivalent Ni(5)Al4Ni8 cuboctahedra; edges with four equivalent Ni(1)Ni8Ge4 cuboctahedra; edges with four equivalent Al(1)Ni12 cuboctahedra; edges with four equivalent Ge(1)Ni12 cuboctahedra;  a faceface with one Ni(5)Al4Ni8 cuboctahedra; faces with two equivalent Ni(2)Al4Ni8 cuboctahedra; faces with two equivalent Ni(1)Ni8Ge4 cuboctahedra; faces with two equivalent Al(1)Ni12 cuboctahedra; faces with two equivalent Ge(1)Ni12 cuboctahedra; and faces with nine Ni(4,4)Al2Ni8Ge2 cuboctahedra. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded to four equivalent Ni(2), four equivalent Ni(4), and four equivalent Ni(5) atoms to form AlNi12 cuboctahedra that share corners with four equivalent Al(1)Ni12 cuboctahedra, corners with four equivalent Al(2)Ni12 cuboctahedra, corners with four equivalent Ge(1)Ni12 cuboctahedra, edges with four equivalent Ni(3)Al4Ni8 cuboctahedra, edges with four equivalent Ni(1)Ni8Ge4 cuboctahedra, edges with eight equivalent Ni(4)Al2Ni8Ge2 cuboctahedra, edges with eight equivalent Ni(5)Al4Ni8 cuboctahedra,  a faceface with one Al(2)Ni12 cuboctahedra,  a faceface with one Ge(1)Ni12 cuboctahedra, faces with four equivalent Ni(4)Al2Ni8Ge2 cuboctahedra, faces with four equivalent Ni(2)Al4Ni8 cuboctahedra, faces with four equivalent Ni(5)Al4Ni8 cuboctahedra, and faces with four equivalent Al(1)Ni12 cuboctahedra. In the second Al site, Al(2) is bonded to four equivalent Ni(3), four equivalent Ni(5), and four equivalent Ni(6) atoms to form AlNi12 cuboctahedra that share corners with four equivalent Al(1)Ni12 cuboctahedra, corners with eight equivalent Al(2)Ni12 cuboctahedra, edges with four equivalent Ni(2)Al4Ni8 cuboctahedra, edges with four equivalent Ni(3)Al4Ni8 cuboctahedra, edges with eight equivalent Ni(5)Al4Ni8 cuboctahedra, edges with eight equivalent Ni(6)Al4Ni8 cuboctahedra,  a faceface with one Al(1)Ni12 cuboctahedra, faces with four equivalent Ni(3)Al4Ni8 cuboctahedra, faces with four equivalent Ni(5)Al4Ni8 cuboctahedra, faces with four equivalent Ni(6)Al4Ni8 cuboctahedra, and faces with five equivalent Al(2)Ni12 cuboctahedra. Ge(1) is bonded to four equivalent Ni(1) and eight Ni(4,4) atoms to form GeNi12 cuboctahedra that share corners with four equivalent Ge(1)Ni12 cuboctahedra; corners with eight equivalent Al(1)Ni12 cuboctahedra; edges with eight equivalent Ni(2)Al4Ni8 cuboctahedra; edges with sixteen Ni(4,4)Al2Ni8Ge2 cuboctahedra; faces with two equivalent Al(1)Ni12 cuboctahedra; faces with four equivalent Ni(1)Ni8Ge4 cuboctahedra; faces with four equivalent Ge(1)Ni12 cuboctahedra; and faces with eight Ni(4,4)Al2Ni8Ge2 cuboctahedra. is represented by the CIF file [CIF]
data_Al4Ni15Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.561
_cell_length_b   3.561
_cell_length_c   17.804
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   225.772
_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
  Al  Al0  1  0.000  0.000  0.200  1.0
  Al  Al1  1  0.000  0.000  0.400  1.0
  Al  Al2  1  0.000  0.000  0.600  1.0
  Al  Al3  1  0.000  0.000  0.800  1.0
  Ni  Ni4  1  0.500  0.500  0.000  1.0
  Ni  Ni5  1  0.500  0.500  0.200  1.0
  Ni  Ni6  1  0.500  0.500  0.400  1.0
  Ni  Ni7  1  0.500  0.500  0.600  1.0
  Ni  Ni8  1  0.500  0.500  0.800  1.0
  Ni  Ni9  1  0.500  0.000  0.100  1.0
  Ni  Ni10  1  0.500  0.000  0.300  1.0
  Ni  Ni11  1  0.500  0.000  0.500  1.0
  Ni  Ni12  1  0.500  0.000  0.700  1.0
  Ni  Ni13  1  0.500  0.000  0.900  1.0
  Ni  Ni14  1  0.000  0.500  0.100  1.0
  Ni  Ni15  1  0.000  0.500  0.300  1.0
  Ni  Ni16  1  0.000  0.500  0.500  1.0
  Ni  Ni17  1  0.000  0.500  0.700  1.0
  Ni  Ni18  1  0.000  0.500  0.900  1.0
  Ge  Ge19  1  0.000  0.000  0.000  1.0
[/CIF]
.
The crystal structure described by Ni15Al4Ge is Uranium Silicide-derived structured and crystallizes in the tetragonal P4/mmm space group. There are seven inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to eight Ni(4,4) and four equivalent Ge(1) atoms to form NiNi8Ge4 cuboctahedra that share corners with four equivalent Ni(1)Ni8Ge4 cuboctahedra; corners with eight equivalent Ni(2)Al4Ni8 cuboctahedra; edges with eight equivalent Al(1)Ni12 cuboctahedra; edges with sixteen Ni(4,4)Al2Ni8Ge2 cuboctahedra; faces with two equivalent Ni(2)Al4Ni8 cuboctahedra; faces with four equivalent Ni(1)Ni8Ge4 cuboctahedra; faces with four equivalent Ge(1)Ni12 cuboctahedra; and faces with eight Ni(4,4)Al2Ni8Ge2 cuboctahedra. In the second Ni site, Ni(2) is bonded to four equivalent Ni(4), four equivalent Ni(5), and four equivalent Al(1) atoms to form NiAl4Ni8 cuboctahedra that share corners with four equivalent Ni(2)Al4Ni8 cuboctahedra, corners with four equivalent Ni(3)Al4Ni8 cuboctahedra, corners with four equivalent Ni(1)Ni8Ge4 cuboctahedra, edges with four equivalent Al(2)Ni12 cuboctahedra, edges with four equivalent Ge(1)Ni12 cuboctahedra, edges with eight equivalent Ni(4)Al2Ni8Ge2 cuboctahedra, edges with eight equivalent Ni(5)Al4Ni8 cuboctahedra,  a faceface with one Ni(3)Al4Ni8 cuboctahedra,  a faceface with one Ni(1)Ni8Ge4 cuboctahedra, faces with four equivalent Ni(4)Al2Ni8Ge2 cuboctahedra, faces with four equivalent Ni(2)Al4Ni8 cuboctahedra, faces with four equivalent Ni(5)Al4Ni8 cuboctahedra, and faces with four equivalent Al(1)Ni12 cuboctahedra. In the third Ni site, Ni(3) is bonded to four equivalent Ni(5), four equivalent Ni(6), and four equivalent Al(2) atoms to form NiAl4Ni8 cuboctahedra that share corners with four equivalent Ni(2)Al4Ni8 cuboctahedra, corners with eight equivalent Ni(3)Al4Ni8 cuboctahedra, edges with four equivalent Al(1)Ni12 cuboctahedra, edges with four equivalent Al(2)Ni12 cuboctahedra, edges with eight equivalent Ni(5)Al4Ni8 cuboctahedra, edges with eight equivalent Ni(6)Al4Ni8 cuboctahedra,  a faceface with one Ni(2)Al4Ni8 cuboctahedra, faces with four equivalent Ni(5)Al4Ni8 cuboctahedra, faces with four equivalent Ni(6)Al4Ni8 cuboctahedra, faces with four equivalent Al(2)Ni12 cuboctahedra, and faces with five equivalent Ni(3)Al4Ni8 cuboctahedra. In the fourth Ni site, Ni(4) is bonded to two equivalent Ni(1), two equivalent Ni(2), four equivalent Ni(4), two equivalent Al(1), and two equivalent Ge(1) atoms to form NiAl2Ni8Ge2 cuboctahedra that share corners with four equivalent Ni(5)Al4Ni8 cuboctahedra; corners with eight Ni(4,4)Al2Ni8Ge2 cuboctahedra; edges with four equivalent Ni(4)Al2Ni8Ge2 cuboctahedra; edges with four equivalent Ni(2)Al4Ni8 cuboctahedra; edges with four equivalent Ni(5)Al4Ni8 cuboctahedra; edges with four equivalent Ni(1)Ni8Ge4 cuboctahedra; edges with four equivalent Al(1)Ni12 cuboctahedra; edges with four equivalent Ge(1)Ni12 cuboctahedra;  a faceface with one Ni(5)Al4Ni8 cuboctahedra; faces with two equivalent Ni(2)Al4Ni8 cuboctahedra; faces with two equivalent Ni(1)Ni8Ge4 cuboctahedra; faces with two equivalent Al(1)Ni12 cuboctahedra; faces with two equivalent Ge(1)Ni12 cuboctahedra; and faces with nine Ni(4,4)Al2Ni8Ge2 cuboctahedra. In the fifth Ni site, Ni(5) is bonded to two equivalent Ni(2), two equivalent Ni(3), four equivalent Ni(5), two equivalent Al(1), and two equivalent Al(2) atoms to form NiAl4Ni8 cuboctahedra that share corners with four equivalent Ni(4)Al2Ni8Ge2 cuboctahedra, corners with four equivalent Ni(5)Al4Ni8 cuboctahedra, corners with four equivalent Ni(6)Al4Ni8 cuboctahedra, edges with four equivalent Ni(4)Al2Ni8Ge2 cuboctahedra, edges with four equivalent Ni(2)Al4Ni8 cuboctahedra, edges with four equivalent Ni(3)Al4Ni8 cuboctahedra, edges with four equivalent Ni(6)Al4Ni8 cuboctahedra, edges with four equivalent Al(1)Ni12 cuboctahedra, edges with four equivalent Al(2)Ni12 cuboctahedra,  a faceface with one Ni(4)Al2Ni8Ge2 cuboctahedra,  a faceface with one Ni(6)Al4Ni8 cuboctahedra, faces with two equivalent Ni(2)Al4Ni8 cuboctahedra, faces with two equivalent Ni(3)Al4Ni8 cuboctahedra, faces with two equivalent Al(1)Ni12 cuboctahedra, faces with two equivalent Al(2)Ni12 cuboctahedra, and faces with eight equivalent Ni(5)Al4Ni8 cuboctahedra. In the sixth Ni site, Ni(6) is bonded to four equivalent Ni(3), four equivalent Ni(6), and four equivalent Al(2) atoms to form NiAl4Ni8 cuboctahedra that share corners with four equivalent Ni(6)Al4Ni8 cuboctahedra, corners with eight equivalent Ni(5)Al4Ni8 cuboctahedra, edges with eight equivalent Ni(3)Al4Ni8 cuboctahedra, edges with eight equivalent Ni(5)Al4Ni8 cuboctahedra, edges with eight equivalent Al(2)Ni12 cuboctahedra, faces with two equivalent Ni(5)Al4Ni8 cuboctahedra, faces with four equivalent Ni(3)Al4Ni8 cuboctahedra, faces with four equivalent Al(2)Ni12 cuboctahedra, and faces with eight equivalent Ni(6)Al4Ni8 cuboctahedra. In the seventh Ni site, Ni(4) is bonded to two equivalent Ni(1), two equivalent Ni(2), four equivalent Ni(4), two equivalent Al(1), and two equivalent Ge(1) atoms to form NiAl2Ni8Ge2 cuboctahedra that share corners with four equivalent Ni(5)Al4Ni8 cuboctahedra; corners with eight Ni(4,4)Al2Ni8Ge2 cuboctahedra; edges with four equivalent Ni(4)Al2Ni8Ge2 cuboctahedra; edges with four equivalent Ni(2)Al4Ni8 cuboctahedra; edges with four equivalent Ni(5)Al4Ni8 cuboctahedra; edges with four equivalent Ni(1)Ni8Ge4 cuboctahedra; edges with four equivalent Al(1)Ni12 cuboctahedra; edges with four equivalent Ge(1)Ni12 cuboctahedra;  a faceface with one Ni(5)Al4Ni8 cuboctahedra; faces with two equivalent Ni(2)Al4Ni8 cuboctahedra; faces with two equivalent Ni(1)Ni8Ge4 cuboctahedra; faces with two equivalent Al(1)Ni12 cuboctahedra; faces with two equivalent Ge(1)Ni12 cuboctahedra; and faces with nine Ni(4,4)Al2Ni8Ge2 cuboctahedra. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded to four equivalent Ni(2), four equivalent Ni(4), and four equivalent Ni(5) atoms to form AlNi12 cuboctahedra that share corners with four equivalent Al(1)Ni12 cuboctahedra, corners with four equivalent Al(2)Ni12 cuboctahedra, corners with four equivalent Ge(1)Ni12 cuboctahedra, edges with four equivalent Ni(3)Al4Ni8 cuboctahedra, edges with four equivalent Ni(1)Ni8Ge4 cuboctahedra, edges with eight equivalent Ni(4)Al2Ni8Ge2 cuboctahedra, edges with eight equivalent Ni(5)Al4Ni8 cuboctahedra,  a faceface with one Al(2)Ni12 cuboctahedra,  a faceface with one Ge(1)Ni12 cuboctahedra, faces with four equivalent Ni(4)Al2Ni8Ge2 cuboctahedra, faces with four equivalent Ni(2)Al4Ni8 cuboctahedra, faces with four equivalent Ni(5)Al4Ni8 cuboctahedra, and faces with four equivalent Al(1)Ni12 cuboctahedra. In the second Al site, Al(2) is bonded to four equivalent Ni(3), four equivalent Ni(5), and four equivalent Ni(6) atoms to form AlNi12 cuboctahedra that share corners with four equivalent Al(1)Ni12 cuboctahedra, corners with eight equivalent Al(2)Ni12 cuboctahedra, edges with four equivalent Ni(2)Al4Ni8 cuboctahedra, edges with four equivalent Ni(3)Al4Ni8 cuboctahedra, edges with eight equivalent Ni(5)Al4Ni8 cuboctahedra, edges with eight equivalent Ni(6)Al4Ni8 cuboctahedra,  a faceface with one Al(1)Ni12 cuboctahedra, faces with four equivalent Ni(3)Al4Ni8 cuboctahedra, faces with four equivalent Ni(5)Al4Ni8 cuboctahedra, faces with four equivalent Ni(6)Al4Ni8 cuboctahedra, and faces with five equivalent Al(2)Ni12 cuboctahedra. Ge(1) is bonded to four equivalent Ni(1) and eight Ni(4,4) atoms to form GeNi12 cuboctahedra that share corners with four equivalent Ge(1)Ni12 cuboctahedra; corners with eight equivalent Al(1)Ni12 cuboctahedra; edges with eight equivalent Ni(2)Al4Ni8 cuboctahedra; edges with sixteen Ni(4,4)Al2Ni8Ge2 cuboctahedra; faces with two equivalent Al(1)Ni12 cuboctahedra; faces with four equivalent Ni(1)Ni8Ge4 cuboctahedra; faces with four equivalent Ge(1)Ni12 cuboctahedra; and faces with eight Ni(4,4)Al2Ni8Ge2 cuboctahedra. is represented by the CIF file [CIF]
data_Al4Ni15Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.561
_cell_length_b   3.561
_cell_length_c   17.804
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   225.772
_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
  Al  Al0  1  0.000  0.000  0.200  1.0
  Al  Al1  1  0.000  0.000  0.400  1.0
  Al  Al2  1  0.000  0.000  0.600  1.0
  Al  Al3  1  0.000  0.000  0.800  1.0
  Ni  Ni4  1  0.500  0.500  0.000  1.0
  Ni  Ni5  1  0.500  0.500  0.200  1.0
  Ni  Ni6  1  0.500  0.500  0.400  1.0
  Ni  Ni7  1  0.500  0.500  0.600  1.0
  Ni  Ni8  1  0.500  0.500  0.800  1.0
  Ni  Ni9  1  0.500  0.000  0.100  1.0
  Ni  Ni10  1  0.500  0.000  0.300  1.0
  Ni  Ni11  1  0.500  0.000  0.500  1.0
  Ni  Ni12  1  0.500  0.000  0.700  1.0
  Ni  Ni13  1  0.500  0.000  0.900  1.0
  Ni  Ni14  1  0.000  0.500  0.100  1.0
  Ni  Ni15  1  0.000  0.500  0.300  1.0
  Ni  Ni16  1  0.000  0.500  0.500  1.0
  Ni  Ni17  1  0.000  0.500  0.700  1.0
  Ni  Ni18  1  0.000  0.500  0.900  1.0
  Ge  Ge19  1  0.000  0.000  0.000  1.0
[/CIF]
.