The compound described by Ni7Zn6Ge2 crystallizes in the cubic Fd-3m space group. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a body-centered cubic geometry to two equivalent Zn(2), four equivalent Zn(1), and two equivalent Ge(1) atoms. In the second Ni site, Ni(2) is bonded in a body-centered cubic geometry to four equivalent Zn(1) and four equivalent Zn(2) atoms. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 7-coordinate geometry to one Ni(2), six equivalent Ni(1), and three equivalent Ge(1) atoms. In the second Zn site, Zn(2) is bonded in a body-centered cubic geometry to two equivalent Ni(2) and six equivalent Ni(1) atoms. Ge(1) is bonded to six equivalent Ni(1) and six equivalent Zn(1) atoms to form face-sharing GeZn6Ni6 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Zn6Ni7Ge2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.140
_cell_length_b   8.140
_cell_length_c   8.140
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   381.397
_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
  Zn  Zn0  1  0.874  0.874  0.874  1.0
  Zn  Zn1  1  0.871  0.376  0.376  1.0
  Zn  Zn2  1  0.376  0.871  0.376  1.0
  Zn  Zn3  1  0.376  0.376  0.871  1.0
  Zn  Zn4  1  0.874  0.379  0.874  1.0
  Zn  Zn5  1  0.874  0.874  0.379  1.0
  Zn  Zn6  1  0.379  0.874  0.874  1.0
  Zn  Zn7  1  0.376  0.376  0.376  1.0
  Zn  Zn8  1  0.125  0.125  0.125  1.0
  Zn  Zn9  1  0.625  0.125  0.125  1.0
  Zn  Zn10  1  0.125  0.625  0.125  1.0
  Zn  Zn11  1  0.125  0.125  0.625  1.0
  Ni  Ni12  1  0.251  0.749  0.251  1.0
  Ni  Ni13  1  0.501  0.999  0.999  1.0
  Ni  Ni14  1  0.999  0.501  0.501  1.0
  Ni  Ni15  1  0.501  0.999  0.501  1.0
  Ni  Ni16  1  0.999  0.999  0.501  1.0
  Ni  Ni17  1  0.501  0.501  0.999  1.0
  Ni  Ni18  1  0.251  0.251  0.749  1.0
  Ni  Ni19  1  0.749  0.251  0.251  1.0
  Ni  Ni20  1  0.251  0.749  0.749  1.0
  Ni  Ni21  1  0.749  0.749  0.251  1.0
  Ni  Ni22  1  0.999  0.501  0.999  1.0
  Ni  Ni23  1  0.749  0.251  0.749  1.0
  Ni  Ni24  1  0.000  0.000  0.000  1.0
  Ni  Ni25  1  0.250  0.250  0.250  1.0
  Ge  Ge26  1  0.625  0.625  0.625  1.0
  Ge  Ge27  1  0.125  0.625  0.625  1.0
  Ge  Ge28  1  0.625  0.125  0.625  1.0
  Ge  Ge29  1  0.625  0.625  0.125  1.0
[/CIF]
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The compound described by Ni7Zn6Ge2 crystallizes in the cubic Fd-3m space group. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a body-centered cubic geometry to two equivalent Zn(2), four equivalent Zn(1), and two equivalent Ge(1) atoms. In the second Ni site, Ni(2) is bonded in a body-centered cubic geometry to four equivalent Zn(1) and four equivalent Zn(2) atoms. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 7-coordinate geometry to one Ni(2), six equivalent Ni(1), and three equivalent Ge(1) atoms. In the second Zn site, Zn(2) is bonded in a body-centered cubic geometry to two equivalent Ni(2) and six equivalent Ni(1) atoms. Ge(1) is bonded to six equivalent Ni(1) and six equivalent Zn(1) atoms to form face-sharing GeZn6Ni6 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Zn6Ni7Ge2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.140
_cell_length_b   8.140
_cell_length_c   8.140
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   381.397
_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
  Zn  Zn0  1  0.874  0.874  0.874  1.0
  Zn  Zn1  1  0.871  0.376  0.376  1.0
  Zn  Zn2  1  0.376  0.871  0.376  1.0
  Zn  Zn3  1  0.376  0.376  0.871  1.0
  Zn  Zn4  1  0.874  0.379  0.874  1.0
  Zn  Zn5  1  0.874  0.874  0.379  1.0
  Zn  Zn6  1  0.379  0.874  0.874  1.0
  Zn  Zn7  1  0.376  0.376  0.376  1.0
  Zn  Zn8  1  0.125  0.125  0.125  1.0
  Zn  Zn9  1  0.625  0.125  0.125  1.0
  Zn  Zn10  1  0.125  0.625  0.125  1.0
  Zn  Zn11  1  0.125  0.125  0.625  1.0
  Ni  Ni12  1  0.251  0.749  0.251  1.0
  Ni  Ni13  1  0.501  0.999  0.999  1.0
  Ni  Ni14  1  0.999  0.501  0.501  1.0
  Ni  Ni15  1  0.501  0.999  0.501  1.0
  Ni  Ni16  1  0.999  0.999  0.501  1.0
  Ni  Ni17  1  0.501  0.501  0.999  1.0
  Ni  Ni18  1  0.251  0.251  0.749  1.0
  Ni  Ni19  1  0.749  0.251  0.251  1.0
  Ni  Ni20  1  0.251  0.749  0.749  1.0
  Ni  Ni21  1  0.749  0.749  0.251  1.0
  Ni  Ni22  1  0.999  0.501  0.999  1.0
  Ni  Ni23  1  0.749  0.251  0.749  1.0
  Ni  Ni24  1  0.000  0.000  0.000  1.0
  Ni  Ni25  1  0.250  0.250  0.250  1.0
  Ge  Ge26  1  0.625  0.625  0.625  1.0
  Ge  Ge27  1  0.125  0.625  0.625  1.0
  Ge  Ge28  1  0.625  0.125  0.625  1.0
  Ge  Ge29  1  0.625  0.625  0.125  1.0
[/CIF]
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