The compound described by UCoNiGe2 crystallizes in the tetragonal P4/nmm space group. U(1) is bonded in a distorted single-bond geometry to four equivalent Co(1), one Ni(1), and four equivalent Ge(2) atoms. Co(1) is bonded in a body-centered cubic geometry to four equivalent U(1) and four equivalent Ge(2) atoms. Ni(1) is bonded in a 5-coordinate geometry to one U(1) and four equivalent Ge(1) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to four equivalent Ni(1) atoms to form a mixture of distorted corner and edge-sharing GeNi4 tetrahedra. In the second Ge site, Ge(2) is bonded in a 8-coordinate geometry to four equivalent U(1) and four equivalent Co(1) atoms. is represented by the CIF file [CIF]
data_UCoNiGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.204
_cell_length_b   4.204
_cell_length_c   10.478
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   185.175
_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
  U  U0  1  0.000  0.500  0.821  1.0
  U  U1  1  0.500  0.000  0.179  1.0
  Co  Co2  1  0.500  0.500  0.000  1.0
  Co  Co3  1  0.000  0.000  0.000  1.0
  Ni  Ni4  1  0.000  0.500  0.602  1.0
  Ni  Ni5  1  0.500  0.000  0.398  1.0
  Ge  Ge6  1  0.500  0.500  0.500  1.0
  Ge  Ge7  1  0.000  0.000  0.500  1.0
  Ge  Ge8  1  0.000  0.500  0.134  1.0
  Ge  Ge9  1  0.500  0.000  0.866  1.0
[/CIF]
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The compound described by UCoNiGe2 crystallizes in the tetragonal P4/nmm space group. U(1) is bonded in a distorted single-bond geometry to four equivalent Co(1), one Ni(1), and four equivalent Ge(2) atoms. Co(1) is bonded in a body-centered cubic geometry to four equivalent U(1) and four equivalent Ge(2) atoms. Ni(1) is bonded in a 5-coordinate geometry to one U(1) and four equivalent Ge(1) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to four equivalent Ni(1) atoms to form a mixture of distorted corner and edge-sharing GeNi4 tetrahedra. In the second Ge site, Ge(2) is bonded in a 8-coordinate geometry to four equivalent U(1) and four equivalent Co(1) atoms. is represented by the CIF file [CIF]
data_UCoNiGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.204
_cell_length_b   4.204
_cell_length_c   10.478
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   185.175
_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
  U  U0  1  0.000  0.500  0.821  1.0
  U  U1  1  0.500  0.000  0.179  1.0
  Co  Co2  1  0.500  0.500  0.000  1.0
  Co  Co3  1  0.000  0.000  0.000  1.0
  Ni  Ni4  1  0.000  0.500  0.602  1.0
  Ni  Ni5  1  0.500  0.000  0.398  1.0
  Ge  Ge6  1  0.500  0.500  0.500  1.0
  Ge  Ge7  1  0.000  0.000  0.500  1.0
  Ge  Ge8  1  0.000  0.500  0.134  1.0
  Ge  Ge9  1  0.500  0.000  0.866  1.0
[/CIF]
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