The material described by SrNi3Ge2 crystallizes in the hexagonal P6_3/mmc space group. Sr(1) is bonded in a 6-coordinate geometry to two equivalent Ni(1) and six equivalent Ge(1) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to two equivalent Sr(1), six equivalent Ni(2), and six equivalent Ge(1) atoms to form a mixture of distorted corner and face-sharing NiSr2Ni6Ge6 cuboctahedra. In the second Ni site, Ni(2) is bonded in a 4-coordinate geometry to three equivalent Ni(1) and four equivalent Ge(1) atoms. Ge(1) is bonded in a 10-coordinate geometry to three equivalent Sr(1), three equivalent Ni(1), and four equivalent Ni(2) atoms. is represented by the CIF file [CIF]
data_SrNi3Ge2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.019
_cell_length_b   4.019
_cell_length_c   14.196
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   198.579
_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
  Sr  Sr0  1  0.000  0.000  0.750  1.0
  Sr  Sr1  1  0.000  0.000  0.250  1.0
  Ni  Ni2  1  0.000  0.000  0.500  1.0
  Ni  Ni3  1  0.000  0.000  0.000  1.0
  Ni  Ni4  1  0.333  0.667  0.428  1.0
  Ni  Ni5  1  0.667  0.333  0.928  1.0
  Ni  Ni6  1  0.333  0.667  0.072  1.0
  Ni  Ni7  1  0.667  0.333  0.572  1.0
  Ge  Ge8  1  0.333  0.667  0.594  1.0
  Ge  Ge9  1  0.667  0.333  0.406  1.0
  Ge  Ge10  1  0.667  0.333  0.094  1.0
  Ge  Ge11  1  0.333  0.667  0.906  1.0
[/CIF]
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The material described by SrNi3Ge2 crystallizes in the hexagonal P6_3/mmc space group. Sr(1) is bonded in a 6-coordinate geometry to two equivalent Ni(1) and six equivalent Ge(1) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to two equivalent Sr(1), six equivalent Ni(2), and six equivalent Ge(1) atoms to form a mixture of distorted corner and face-sharing NiSr2Ni6Ge6 cuboctahedra. In the second Ni site, Ni(2) is bonded in a 4-coordinate geometry to three equivalent Ni(1) and four equivalent Ge(1) atoms. Ge(1) is bonded in a 10-coordinate geometry to three equivalent Sr(1), three equivalent Ni(1), and four equivalent Ni(2) atoms. is represented by the CIF file [CIF]
data_SrNi3Ge2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.019
_cell_length_b   4.019
_cell_length_c   14.196
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   198.579
_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
  Sr  Sr0  1  0.000  0.000  0.750  1.0
  Sr  Sr1  1  0.000  0.000  0.250  1.0
  Ni  Ni2  1  0.000  0.000  0.500  1.0
  Ni  Ni3  1  0.000  0.000  0.000  1.0
  Ni  Ni4  1  0.333  0.667  0.428  1.0
  Ni  Ni5  1  0.667  0.333  0.928  1.0
  Ni  Ni6  1  0.333  0.667  0.072  1.0
  Ni  Ni7  1  0.667  0.333  0.572  1.0
  Ge  Ge8  1  0.333  0.667  0.594  1.0
  Ge  Ge9  1  0.667  0.333  0.406  1.0
  Ge  Ge10  1  0.667  0.333  0.094  1.0
  Ge  Ge11  1  0.333  0.667  0.906  1.0
[/CIF]
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