The material structure described by Ce5NiGe2 crystallizes in the tetragonal P4/ncc space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 5-coordinate geometry to two equivalent Ni(1) and three equivalent Ge(1) atoms. In the second Ce site, Ce(2) is bonded to four equivalent Ge(1) atoms to form distorted edge-sharing CeGe4 tetrahedra. Ni(1) is bonded in a 8-coordinate geometry to eight equivalent Ce(1) atoms. Ge(1) is bonded in a 8-coordinate geometry to two equivalent Ce(2) and six equivalent Ce(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ce5NiGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.444
_cell_length_b   11.444
_cell_length_c   6.116
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   801.006
_cell_formula_units_Z   4
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
  Ce  Ce0  1  0.580  0.212  0.170  1.0
  Ce  Ce1  1  0.288  0.080  0.170  1.0
  Ce  Ce2  1  0.580  0.788  0.670  1.0
  Ce  Ce3  1  0.420  0.788  0.170  1.0
  Ce  Ce4  1  0.920  0.288  0.830  1.0
  Ce  Ce5  1  0.212  0.420  0.830  1.0
  Ce  Ce6  1  0.080  0.712  0.830  1.0
  Ce  Ce7  1  0.212  0.580  0.330  1.0
  Ce  Ce8  1  0.000  0.000  0.500  1.0
  Ce  Ce9  1  0.712  0.080  0.670  1.0
  Ce  Ce10  1  0.500  0.500  0.500  1.0
  Ce  Ce11  1  0.712  0.920  0.170  1.0
  Ce  Ce12  1  0.288  0.920  0.670  1.0
  Ce  Ce13  1  0.080  0.288  0.330  1.0
  Ce  Ce14  1  0.788  0.420  0.330  1.0
  Ce  Ce15  1  0.788  0.580  0.830  1.0
  Ce  Ce16  1  0.420  0.212  0.670  1.0
  Ce  Ce17  1  0.500  0.500  0.000  1.0
  Ce  Ce18  1  0.920  0.712  0.330  1.0
  Ce  Ce19  1  0.000  0.000  0.000  1.0
  Ni  Ni20  1  0.500  0.000  0.930  1.0
  Ni  Ni21  1  0.000  0.500  0.570  1.0
  Ni  Ni22  1  0.500  0.000  0.430  1.0
  Ni  Ni23  1  0.000  0.500  0.070  1.0
  Ge  Ge24  1  0.163  0.837  0.250  1.0
  Ge  Ge25  1  0.163  0.163  0.750  1.0
  Ge  Ge26  1  0.337  0.663  0.750  1.0
  Ge  Ge27  1  0.337  0.337  0.250  1.0
  Ge  Ge28  1  0.663  0.337  0.750  1.0
  Ge  Ge29  1  0.837  0.837  0.750  1.0
  Ge  Ge30  1  0.837  0.163  0.250  1.0
  Ge  Ge31  1  0.663  0.663  0.250  1.0
[/CIF]
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The material structure described by Ce5NiGe2 crystallizes in the tetragonal P4/ncc space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 5-coordinate geometry to two equivalent Ni(1) and three equivalent Ge(1) atoms. In the second Ce site, Ce(2) is bonded to four equivalent Ge(1) atoms to form distorted edge-sharing CeGe4 tetrahedra. Ni(1) is bonded in a 8-coordinate geometry to eight equivalent Ce(1) atoms. Ge(1) is bonded in a 8-coordinate geometry to two equivalent Ce(2) and six equivalent Ce(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ce5NiGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.444
_cell_length_b   11.444
_cell_length_c   6.116
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   801.006
_cell_formula_units_Z   4
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
  Ce  Ce0  1  0.580  0.212  0.170  1.0
  Ce  Ce1  1  0.288  0.080  0.170  1.0
  Ce  Ce2  1  0.580  0.788  0.670  1.0
  Ce  Ce3  1  0.420  0.788  0.170  1.0
  Ce  Ce4  1  0.920  0.288  0.830  1.0
  Ce  Ce5  1  0.212  0.420  0.830  1.0
  Ce  Ce6  1  0.080  0.712  0.830  1.0
  Ce  Ce7  1  0.212  0.580  0.330  1.0
  Ce  Ce8  1  0.000  0.000  0.500  1.0
  Ce  Ce9  1  0.712  0.080  0.670  1.0
  Ce  Ce10  1  0.500  0.500  0.500  1.0
  Ce  Ce11  1  0.712  0.920  0.170  1.0
  Ce  Ce12  1  0.288  0.920  0.670  1.0
  Ce  Ce13  1  0.080  0.288  0.330  1.0
  Ce  Ce14  1  0.788  0.420  0.330  1.0
  Ce  Ce15  1  0.788  0.580  0.830  1.0
  Ce  Ce16  1  0.420  0.212  0.670  1.0
  Ce  Ce17  1  0.500  0.500  0.000  1.0
  Ce  Ce18  1  0.920  0.712  0.330  1.0
  Ce  Ce19  1  0.000  0.000  0.000  1.0
  Ni  Ni20  1  0.500  0.000  0.930  1.0
  Ni  Ni21  1  0.000  0.500  0.570  1.0
  Ni  Ni22  1  0.500  0.000  0.430  1.0
  Ni  Ni23  1  0.000  0.500  0.070  1.0
  Ge  Ge24  1  0.163  0.837  0.250  1.0
  Ge  Ge25  1  0.163  0.163  0.750  1.0
  Ge  Ge26  1  0.337  0.663  0.750  1.0
  Ge  Ge27  1  0.337  0.337  0.250  1.0
  Ge  Ge28  1  0.663  0.337  0.750  1.0
  Ge  Ge29  1  0.837  0.837  0.750  1.0
  Ge  Ge30  1  0.837  0.163  0.250  1.0
  Ge  Ge31  1  0.663  0.663  0.250  1.0
[/CIF]
.