The material structure described by Mg6Ni16Ge7 crystallizes in the cubic Fm-3m space group. Mg(1) is bonded in a 12-coordinate geometry to four equivalent Ni(1), four equivalent Ni(2), and four equivalent Ge(2) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(2) is bonded in a 13-coordinate geometry to three equivalent Mg(1), three equivalent Ni(1), three equivalent Ni(2), one Ge(1), and three equivalent Ge(2) atoms. In the second Ni site, Ni(1) is bonded in a 12-coordinate geometry to three equivalent Mg(1), three equivalent Ni(1), three equivalent Ni(2), and three equivalent Ge(2) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(2) is bonded to four equivalent Mg(1), four equivalent Ni(1), and four equivalent Ni(2) atoms to form a mixture of corner and face-sharing GeMg4Ni8 cuboctahedra. In the second Ge site, Ge(1) is bonded in a body-centered cubic geometry to eight equivalent Ni(2) atoms. is represented by the CIF file [CIF]
data_Mg6Ni16Ge7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.084
_cell_length_b   8.084
_cell_length_c   8.084
_cell_angle_alpha   60.006
_cell_angle_beta   60.006
_cell_angle_gamma   60.006
_symmetry_Int_Tables_number   1
_cell_volume   373.615
_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
  Mg  Mg0  1  0.206  0.206  0.794  1.0
  Mg  Mg1  1  0.206  0.794  0.794  1.0
  Mg  Mg2  1  0.794  0.206  0.206  1.0
  Mg  Mg3  1  0.206  0.794  0.206  1.0
  Mg  Mg4  1  0.794  0.206  0.794  1.0
  Mg  Mg5  1  0.794  0.794  0.206  1.0
  Ni  Ni6  1  0.831  0.508  0.831  1.0
  Ni  Ni7  1  0.169  0.169  0.492  1.0
  Ni  Ni8  1  0.492  0.169  0.169  1.0
  Ni  Ni9  1  0.169  0.169  0.169  1.0
  Ni  Ni10  1  0.508  0.831  0.831  1.0
  Ni  Ni11  1  0.831  0.831  0.831  1.0
  Ni  Ni12  1  0.831  0.831  0.508  1.0
  Ni  Ni13  1  0.169  0.492  0.169  1.0
  Ni  Ni14  1  0.619  0.144  0.619  1.0
  Ni  Ni15  1  0.381  0.381  0.856  1.0
  Ni  Ni16  1  0.856  0.381  0.381  1.0
  Ni  Ni17  1  0.381  0.381  0.381  1.0
  Ni  Ni18  1  0.144  0.619  0.619  1.0
  Ni  Ni19  1  0.619  0.619  0.619  1.0
  Ni  Ni20  1  0.619  0.619  0.144  1.0
  Ni  Ni21  1  0.381  0.856  0.381  1.0
  Ge  Ge22  1  0.500  0.500  0.500  1.0
  Ge  Ge23  1  0.500  0.500  1.000  1.0
  Ge  Ge24  1  1.000  0.500  0.500  1.0
  Ge  Ge25  1  0.500  1.000  1.000  1.0
  Ge  Ge26  1  1.000  1.000  0.500  1.0
  Ge  Ge27  1  1.000  0.500  1.000  1.0
  Ge  Ge28  1  0.500  1.000  0.500  1.0
[/CIF]
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The material structure described by Mg6Ni16Ge7 crystallizes in the cubic Fm-3m space group. Mg(1) is bonded in a 12-coordinate geometry to four equivalent Ni(1), four equivalent Ni(2), and four equivalent Ge(2) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(2) is bonded in a 13-coordinate geometry to three equivalent Mg(1), three equivalent Ni(1), three equivalent Ni(2), one Ge(1), and three equivalent Ge(2) atoms. In the second Ni site, Ni(1) is bonded in a 12-coordinate geometry to three equivalent Mg(1), three equivalent Ni(1), three equivalent Ni(2), and three equivalent Ge(2) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(2) is bonded to four equivalent Mg(1), four equivalent Ni(1), and four equivalent Ni(2) atoms to form a mixture of corner and face-sharing GeMg4Ni8 cuboctahedra. In the second Ge site, Ge(1) is bonded in a body-centered cubic geometry to eight equivalent Ni(2) atoms. is represented by the CIF file [CIF]
data_Mg6Ni16Ge7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.084
_cell_length_b   8.084
_cell_length_c   8.084
_cell_angle_alpha   60.006
_cell_angle_beta   60.006
_cell_angle_gamma   60.006
_symmetry_Int_Tables_number   1
_cell_volume   373.615
_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
  Mg  Mg0  1  0.206  0.206  0.794  1.0
  Mg  Mg1  1  0.206  0.794  0.794  1.0
  Mg  Mg2  1  0.794  0.206  0.206  1.0
  Mg  Mg3  1  0.206  0.794  0.206  1.0
  Mg  Mg4  1  0.794  0.206  0.794  1.0
  Mg  Mg5  1  0.794  0.794  0.206  1.0
  Ni  Ni6  1  0.831  0.508  0.831  1.0
  Ni  Ni7  1  0.169  0.169  0.492  1.0
  Ni  Ni8  1  0.492  0.169  0.169  1.0
  Ni  Ni9  1  0.169  0.169  0.169  1.0
  Ni  Ni10  1  0.508  0.831  0.831  1.0
  Ni  Ni11  1  0.831  0.831  0.831  1.0
  Ni  Ni12  1  0.831  0.831  0.508  1.0
  Ni  Ni13  1  0.169  0.492  0.169  1.0
  Ni  Ni14  1  0.619  0.144  0.619  1.0
  Ni  Ni15  1  0.381  0.381  0.856  1.0
  Ni  Ni16  1  0.856  0.381  0.381  1.0
  Ni  Ni17  1  0.381  0.381  0.381  1.0
  Ni  Ni18  1  0.144  0.619  0.619  1.0
  Ni  Ni19  1  0.619  0.619  0.619  1.0
  Ni  Ni20  1  0.619  0.619  0.144  1.0
  Ni  Ni21  1  0.381  0.856  0.381  1.0
  Ge  Ge22  1  0.500  0.500  0.500  1.0
  Ge  Ge23  1  0.500  0.500  1.000  1.0
  Ge  Ge24  1  1.000  0.500  0.500  1.0
  Ge  Ge25  1  0.500  1.000  1.000  1.0
  Ge  Ge26  1  1.000  1.000  0.500  1.0
  Ge  Ge27  1  1.000  0.500  1.000  1.0
  Ge  Ge28  1  0.500  1.000  0.500  1.0
[/CIF]
.