The compound described by UCoNiGe2 crystallizes in the tetragonal I-4m2 space group. U(1) is bonded in a 16-coordinate geometry to four equivalent Co(1), four equivalent Ni(1), and eight equivalent Ge(1) atoms. Co(1) is bonded to four equivalent U(1) and four equivalent Ge(1) atoms to form distorted CoU4Ge4 tetrahedra that share corners with four equivalent Ni(1)U4Ge4 tetrahedra, corners with eight equivalent Co(1)U4Ge4 tetrahedra, edges with two equivalent Ni(1)U4Ge4 tetrahedra, edges with four equivalent Co(1)U4Ge4 tetrahedra, and faces with four equivalent Ni(1)U4Ge4 tetrahedra. Ni(1) is bonded to four equivalent U(1) and four equivalent Ge(1) atoms to form distorted NiU4Ge4 tetrahedra that share corners with four equivalent Co(1)U4Ge4 tetrahedra, corners with eight equivalent Ni(1)U4Ge4 tetrahedra, edges with two equivalent Co(1)U4Ge4 tetrahedra, edges with four equivalent Ni(1)U4Ge4 tetrahedra, and faces with four equivalent Co(1)U4Ge4 tetrahedra. Ge(1) is bonded in a 9-coordinate geometry to four equivalent U(1), two equivalent Co(1), two equivalent Ni(1), and one Ge(1) atom. is represented by the CIF file [CIF]
data_UCoNiGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.777
_cell_length_b   5.777
_cell_length_c   5.777
_cell_angle_alpha   139.521
_cell_angle_beta   139.521
_cell_angle_gamma   58.581
_symmetry_Int_Tables_number   1
_cell_volume   80.515
_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
  U  U0  1  0.000  0.000  0.000  1.0
  Co  Co1  1  0.250  0.750  0.500  1.0
  Ni  Ni2  1  0.750  0.250  0.500  1.0
  Ge  Ge3  1  0.628  0.628  0.000  1.0
  Ge  Ge4  1  0.372  0.372  0.000  1.0
[/CIF]
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The compound described by UCoNiGe2 crystallizes in the tetragonal I-4m2 space group. U(1) is bonded in a 16-coordinate geometry to four equivalent Co(1), four equivalent Ni(1), and eight equivalent Ge(1) atoms. Co(1) is bonded to four equivalent U(1) and four equivalent Ge(1) atoms to form distorted CoU4Ge4 tetrahedra that share corners with four equivalent Ni(1)U4Ge4 tetrahedra, corners with eight equivalent Co(1)U4Ge4 tetrahedra, edges with two equivalent Ni(1)U4Ge4 tetrahedra, edges with four equivalent Co(1)U4Ge4 tetrahedra, and faces with four equivalent Ni(1)U4Ge4 tetrahedra. Ni(1) is bonded to four equivalent U(1) and four equivalent Ge(1) atoms to form distorted NiU4Ge4 tetrahedra that share corners with four equivalent Co(1)U4Ge4 tetrahedra, corners with eight equivalent Ni(1)U4Ge4 tetrahedra, edges with two equivalent Co(1)U4Ge4 tetrahedra, edges with four equivalent Ni(1)U4Ge4 tetrahedra, and faces with four equivalent Co(1)U4Ge4 tetrahedra. Ge(1) is bonded in a 9-coordinate geometry to four equivalent U(1), two equivalent Co(1), two equivalent Ni(1), and one Ge(1) atom. is represented by the CIF file [CIF]
data_UCoNiGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.777
_cell_length_b   5.777
_cell_length_c   5.777
_cell_angle_alpha   139.521
_cell_angle_beta   139.521
_cell_angle_gamma   58.581
_symmetry_Int_Tables_number   1
_cell_volume   80.515
_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
  U  U0  1  0.000  0.000  0.000  1.0
  Co  Co1  1  0.250  0.750  0.500  1.0
  Ni  Ni2  1  0.750  0.250  0.500  1.0
  Ge  Ge3  1  0.628  0.628  0.000  1.0
  Ge  Ge4  1  0.372  0.372  0.000  1.0
[/CIF]
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