The compound described by Lu2Ni12Ga5 crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Lu sites. In the first Lu site, Lu(1) is bonded in a 18-coordinate geometry to six equivalent Ni(1) and twelve equivalent Ni(2) atoms. In the second Lu site, Lu(2) is bonded in a 20-coordinate geometry to six equivalent Ni(1), six equivalent Ni(2), two equivalent Ga(1), and six equivalent Ga(2) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one Lu(1), one Lu(2), two equivalent Ni(1), four equivalent Ni(2), two equivalent Ga(1), and two equivalent Ga(2) atoms to form distorted NiLu2Ga4Ni6 cuboctahedra that share corners with four equivalent Ga(2)Lu2Ga2Ni8 cuboctahedra, corners with eight equivalent Ni(2)Lu3Ga3Ni6 cuboctahedra, corners with twelve equivalent Ni(1)Lu2Ga4Ni6 cuboctahedra,  an edgeedge with one Ni(1)Lu2Ga4Ni6 cuboctahedra, edges with two equivalent Ni(2)Lu3Ga3Ni6 cuboctahedra, edges with two equivalent Ga(2)Lu2Ga2Ni8 cuboctahedra, faces with four equivalent Ga(2)Lu2Ga2Ni8 cuboctahedra, faces with seven equivalent Ni(1)Lu2Ga4Ni6 cuboctahedra, and faces with ten equivalent Ni(2)Lu3Ga3Ni6 cuboctahedra. In the second Ni site, Ni(2) is bonded to one Lu(2), two equivalent Lu(1), two equivalent Ni(2), four equivalent Ni(1), one Ga(1), and two equivalent Ga(2) atoms to form distorted NiLu3Ga3Ni6 cuboctahedra that share corners with five equivalent Ga(2)Lu2Ga2Ni8 cuboctahedra, corners with eight equivalent Ni(1)Lu2Ga4Ni6 cuboctahedra, corners with ten equivalent Ni(2)Lu3Ga3Ni6 cuboctahedra, edges with two equivalent Ni(1)Lu2Ga4Ni6 cuboctahedra, edges with three equivalent Ga(2)Lu2Ga2Ni8 cuboctahedra, edges with five equivalent Ni(2)Lu3Ga3Ni6 cuboctahedra, faces with two equivalent Ga(2)Lu2Ga2Ni8 cuboctahedra, faces with eight equivalent Ni(2)Lu3Ga3Ni6 cuboctahedra, and faces with ten equivalent Ni(1)Lu2Ga4Ni6 cuboctahedra. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 14-coordinate geometry to one Lu(2), three equivalent Ni(2), six equivalent Ni(1), one Ga(1), and three equivalent Ga(2) atoms. In the second Ga site, Ga(2) is bonded to two equivalent Lu(2), four equivalent Ni(1), four equivalent Ni(2), and two equivalent Ga(1) atoms to form distorted GaLu2Ga2Ni8 cuboctahedra that share corners with four equivalent Ga(2)Lu2Ga2Ni8 cuboctahedra, corners with eight equivalent Ni(1)Lu2Ga4Ni6 cuboctahedra, corners with ten equivalent Ni(2)Lu3Ga3Ni6 cuboctahedra, edges with four equivalent Ni(1)Lu2Ga4Ni6 cuboctahedra, edges with six equivalent Ni(2)Lu3Ga3Ni6 cuboctahedra, faces with four equivalent Ni(2)Lu3Ga3Ni6 cuboctahedra, faces with six equivalent Ga(2)Lu2Ga2Ni8 cuboctahedra, and faces with eight equivalent Ni(1)Lu2Ga4Ni6 cuboctahedra. is represented by the CIF card [CIF]
data_Lu2Ga5Ni12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.383
_cell_length_b   8.383
_cell_length_c   8.289
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   504.490
_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  0.000  0.000  0.250  1.0
  Lu  Lu1  1  0.000  0.000  0.750  1.0
  Lu  Lu2  1  0.333  0.667  0.750  1.0
  Lu  Lu3  1  0.667  0.333  0.250  1.0
  Ga  Ga4  1  0.333  0.667  0.394  1.0
  Ga  Ga5  1  0.667  0.333  0.606  1.0
  Ga  Ga6  1  0.667  0.333  0.894  1.0
  Ga  Ga7  1  0.333  0.667  0.106  1.0
  Ga  Ga8  1  0.500  0.500  0.500  1.0
  Ga  Ga9  1  0.500  0.000  0.500  1.0
  Ga  Ga10  1  0.000  0.500  0.500  1.0
  Ga  Ga11  1  0.500  0.500  0.000  1.0
  Ga  Ga12  1  0.500  0.000  0.000  1.0
  Ga  Ga13  1  0.000  0.500  0.000  1.0
  Ni  Ni14  1  0.325  0.352  0.250  1.0
  Ni  Ni15  1  0.648  0.973  0.250  1.0
  Ni  Ni16  1  0.027  0.675  0.250  1.0
  Ni  Ni17  1  0.648  0.675  0.250  1.0
  Ni  Ni18  1  0.027  0.352  0.250  1.0
  Ni  Ni19  1  0.325  0.973  0.250  1.0
  Ni  Ni20  1  0.675  0.648  0.750  1.0
  Ni  Ni21  1  0.352  0.027  0.750  1.0
  Ni  Ni22  1  0.973  0.325  0.750  1.0
  Ni  Ni23  1  0.352  0.325  0.750  1.0
  Ni  Ni24  1  0.973  0.648  0.750  1.0
  Ni  Ni25  1  0.675  0.027  0.750  1.0
  Ni  Ni26  1  0.166  0.834  0.515  1.0
  Ni  Ni27  1  0.166  0.332  0.515  1.0
  Ni  Ni28  1  0.668  0.834  0.515  1.0
  Ni  Ni29  1  0.834  0.166  0.485  1.0
  Ni  Ni30  1  0.834  0.668  0.485  1.0
  Ni  Ni31  1  0.332  0.166  0.485  1.0
  Ni  Ni32  1  0.834  0.166  0.015  1.0
  Ni  Ni33  1  0.834  0.668  0.015  1.0
  Ni  Ni34  1  0.332  0.166  0.015  1.0
  Ni  Ni35  1  0.166  0.834  0.985  1.0
  Ni  Ni36  1  0.166  0.332  0.985  1.0
  Ni  Ni37  1  0.668  0.834  0.985  1.0
[/CIF]
.
The compound described by Lu2Ni12Ga5 crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Lu sites. In the first Lu site, Lu(1) is bonded in a 18-coordinate geometry to six equivalent Ni(1) and twelve equivalent Ni(2) atoms. In the second Lu site, Lu(2) is bonded in a 20-coordinate geometry to six equivalent Ni(1), six equivalent Ni(2), two equivalent Ga(1), and six equivalent Ga(2) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one Lu(1), one Lu(2), two equivalent Ni(1), four equivalent Ni(2), two equivalent Ga(1), and two equivalent Ga(2) atoms to form distorted NiLu2Ga4Ni6 cuboctahedra that share corners with four equivalent Ga(2)Lu2Ga2Ni8 cuboctahedra, corners with eight equivalent Ni(2)Lu3Ga3Ni6 cuboctahedra, corners with twelve equivalent Ni(1)Lu2Ga4Ni6 cuboctahedra,  an edgeedge with one Ni(1)Lu2Ga4Ni6 cuboctahedra, edges with two equivalent Ni(2)Lu3Ga3Ni6 cuboctahedra, edges with two equivalent Ga(2)Lu2Ga2Ni8 cuboctahedra, faces with four equivalent Ga(2)Lu2Ga2Ni8 cuboctahedra, faces with seven equivalent Ni(1)Lu2Ga4Ni6 cuboctahedra, and faces with ten equivalent Ni(2)Lu3Ga3Ni6 cuboctahedra. In the second Ni site, Ni(2) is bonded to one Lu(2), two equivalent Lu(1), two equivalent Ni(2), four equivalent Ni(1), one Ga(1), and two equivalent Ga(2) atoms to form distorted NiLu3Ga3Ni6 cuboctahedra that share corners with five equivalent Ga(2)Lu2Ga2Ni8 cuboctahedra, corners with eight equivalent Ni(1)Lu2Ga4Ni6 cuboctahedra, corners with ten equivalent Ni(2)Lu3Ga3Ni6 cuboctahedra, edges with two equivalent Ni(1)Lu2Ga4Ni6 cuboctahedra, edges with three equivalent Ga(2)Lu2Ga2Ni8 cuboctahedra, edges with five equivalent Ni(2)Lu3Ga3Ni6 cuboctahedra, faces with two equivalent Ga(2)Lu2Ga2Ni8 cuboctahedra, faces with eight equivalent Ni(2)Lu3Ga3Ni6 cuboctahedra, and faces with ten equivalent Ni(1)Lu2Ga4Ni6 cuboctahedra. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 14-coordinate geometry to one Lu(2), three equivalent Ni(2), six equivalent Ni(1), one Ga(1), and three equivalent Ga(2) atoms. In the second Ga site, Ga(2) is bonded to two equivalent Lu(2), four equivalent Ni(1), four equivalent Ni(2), and two equivalent Ga(1) atoms to form distorted GaLu2Ga2Ni8 cuboctahedra that share corners with four equivalent Ga(2)Lu2Ga2Ni8 cuboctahedra, corners with eight equivalent Ni(1)Lu2Ga4Ni6 cuboctahedra, corners with ten equivalent Ni(2)Lu3Ga3Ni6 cuboctahedra, edges with four equivalent Ni(1)Lu2Ga4Ni6 cuboctahedra, edges with six equivalent Ni(2)Lu3Ga3Ni6 cuboctahedra, faces with four equivalent Ni(2)Lu3Ga3Ni6 cuboctahedra, faces with six equivalent Ga(2)Lu2Ga2Ni8 cuboctahedra, and faces with eight equivalent Ni(1)Lu2Ga4Ni6 cuboctahedra. is represented by the CIF card [CIF]
data_Lu2Ga5Ni12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.383
_cell_length_b   8.383
_cell_length_c   8.289
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   504.490
_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  0.000  0.000  0.250  1.0
  Lu  Lu1  1  0.000  0.000  0.750  1.0
  Lu  Lu2  1  0.333  0.667  0.750  1.0
  Lu  Lu3  1  0.667  0.333  0.250  1.0
  Ga  Ga4  1  0.333  0.667  0.394  1.0
  Ga  Ga5  1  0.667  0.333  0.606  1.0
  Ga  Ga6  1  0.667  0.333  0.894  1.0
  Ga  Ga7  1  0.333  0.667  0.106  1.0
  Ga  Ga8  1  0.500  0.500  0.500  1.0
  Ga  Ga9  1  0.500  0.000  0.500  1.0
  Ga  Ga10  1  0.000  0.500  0.500  1.0
  Ga  Ga11  1  0.500  0.500  0.000  1.0
  Ga  Ga12  1  0.500  0.000  0.000  1.0
  Ga  Ga13  1  0.000  0.500  0.000  1.0
  Ni  Ni14  1  0.325  0.352  0.250  1.0
  Ni  Ni15  1  0.648  0.973  0.250  1.0
  Ni  Ni16  1  0.027  0.675  0.250  1.0
  Ni  Ni17  1  0.648  0.675  0.250  1.0
  Ni  Ni18  1  0.027  0.352  0.250  1.0
  Ni  Ni19  1  0.325  0.973  0.250  1.0
  Ni  Ni20  1  0.675  0.648  0.750  1.0
  Ni  Ni21  1  0.352  0.027  0.750  1.0
  Ni  Ni22  1  0.973  0.325  0.750  1.0
  Ni  Ni23  1  0.352  0.325  0.750  1.0
  Ni  Ni24  1  0.973  0.648  0.750  1.0
  Ni  Ni25  1  0.675  0.027  0.750  1.0
  Ni  Ni26  1  0.166  0.834  0.515  1.0
  Ni  Ni27  1  0.166  0.332  0.515  1.0
  Ni  Ni28  1  0.668  0.834  0.515  1.0
  Ni  Ni29  1  0.834  0.166  0.485  1.0
  Ni  Ni30  1  0.834  0.668  0.485  1.0
  Ni  Ni31  1  0.332  0.166  0.485  1.0
  Ni  Ni32  1  0.834  0.166  0.015  1.0
  Ni  Ni33  1  0.834  0.668  0.015  1.0
  Ni  Ni34  1  0.332  0.166  0.015  1.0
  Ni  Ni35  1  0.166  0.834  0.985  1.0
  Ni  Ni36  1  0.166  0.332  0.985  1.0
  Ni  Ni37  1  0.668  0.834  0.985  1.0
[/CIF]
.