The compound described by U3Fe4Ge4 crystallizes in the orthorhombic Immm space group. There are two inequivalent U sites. In the first U site, U(1) is bonded to two equivalent Ge(1) and four equivalent Ge(2) atoms to form edge-sharing UGe6 octahedra. In the second U site, U(2) is bonded in a 12-coordinate geometry to six equivalent Fe(1), two equivalent Ge(1), and four equivalent Ge(2) atoms. Fe(1) is bonded in a 8-coordinate geometry to three equivalent U(2), one Fe(1), one Ge(2), and three equivalent Ge(1) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to one U(1), two equivalent U(2), and six equivalent Fe(1) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent U(1), four equivalent U(2), two equivalent Fe(1), and one Ge(2) atom. is represented by the CIF card [CIF]
data_U3(FeGe)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.115
_cell_length_b   6.486
_cell_length_c   7.889
_cell_angle_alpha   114.274
_cell_angle_beta   105.117
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   183.897
_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
  U  U1  1  0.137  0.637  0.274  1.0
  U  U2  1  0.863  0.363  0.726  1.0
  Fe  Fe3  1  0.676  0.970  0.352  1.0
  Fe  Fe4  1  0.324  0.030  0.648  1.0
  Fe  Fe5  1  0.324  0.619  0.648  1.0
  Fe  Fe6  1  0.676  0.381  0.352  1.0
  Ge  Ge7  1  0.792  0.792  0.585  1.0
  Ge  Ge8  1  0.208  0.208  0.415  1.0
  Ge  Ge9  1  0.500  0.699  0.000  1.0
  Ge  Ge10  1  0.500  0.301  0.000  1.0
[/CIF]
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The compound described by U3Fe4Ge4 crystallizes in the orthorhombic Immm space group. There are two inequivalent U sites. In the first U site, U(1) is bonded to two equivalent Ge(1) and four equivalent Ge(2) atoms to form edge-sharing UGe6 octahedra. In the second U site, U(2) is bonded in a 12-coordinate geometry to six equivalent Fe(1), two equivalent Ge(1), and four equivalent Ge(2) atoms. Fe(1) is bonded in a 8-coordinate geometry to three equivalent U(2), one Fe(1), one Ge(2), and three equivalent Ge(1) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to one U(1), two equivalent U(2), and six equivalent Fe(1) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent U(1), four equivalent U(2), two equivalent Fe(1), and one Ge(2) atom. is represented by the CIF card [CIF]
data_U3(FeGe)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.115
_cell_length_b   6.486
_cell_length_c   7.889
_cell_angle_alpha   114.274
_cell_angle_beta   105.117
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   183.897
_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
  U  U1  1  0.137  0.637  0.274  1.0
  U  U2  1  0.863  0.363  0.726  1.0
  Fe  Fe3  1  0.676  0.970  0.352  1.0
  Fe  Fe4  1  0.324  0.030  0.648  1.0
  Fe  Fe5  1  0.324  0.619  0.648  1.0
  Fe  Fe6  1  0.676  0.381  0.352  1.0
  Ge  Ge7  1  0.792  0.792  0.585  1.0
  Ge  Ge8  1  0.208  0.208  0.415  1.0
  Ge  Ge9  1  0.500  0.699  0.000  1.0
  Ge  Ge10  1  0.500  0.301  0.000  1.0
[/CIF]
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