The material structure described by U2Ta3Ge4 crystallizes in the orthorhombic Pnma space group. U(1) is bonded in a 7-coordinate geometry to one Ge(2), two equivalent Ge(3), and four equivalent Ge(1) atoms. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded in a 6-coordinate geometry to one Ge(3), two equivalent Ge(2), and three equivalent Ge(1) atoms. In the second Ta site, Ta(2) is bonded to two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms to form distorted corner-sharing TaGe6 octahedra. The corner-sharing octahedral tilt angles range from 46-53°. There are three inequivalent Ge sites. In the first Ge site, Ge(3) is bonded in a 9-coordinate geometry to four equivalent U(1), two equivalent Ta(1), two equivalent Ta(2), and one Ge(2) atom. In the second Ge site, Ge(1) is bonded in a 9-coordinate geometry to four equivalent U(1), one Ta(2), three equivalent Ta(1), and one Ge(1) atom. In the third Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent U(1), two equivalent Ta(2), four equivalent Ta(1), and one Ge(3) atom. is represented by the CIF card [CIF]
data_U2Ta3Ge4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.033
_cell_length_b   7.133
_cell_length_c   13.395
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   671.999
_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
  U  U0  1  0.492  0.670  0.591  1.0
  U  U1  1  0.992  0.830  0.909  1.0
  U  U2  1  0.508  0.330  0.091  1.0
  U  U3  1  0.008  0.170  0.409  1.0
  U  U4  1  0.508  0.330  0.409  1.0
  U  U5  1  0.008  0.170  0.091  1.0
  U  U6  1  0.492  0.670  0.909  1.0
  U  U7  1  0.992  0.830  0.591  1.0
  Ta  Ta8  1  0.660  0.165  0.625  1.0
  Ta  Ta9  1  0.160  0.335  0.875  1.0
  Ta  Ta10  1  0.340  0.835  0.125  1.0
  Ta  Ta11  1  0.840  0.665  0.375  1.0
  Ta  Ta12  1  0.340  0.835  0.375  1.0
  Ta  Ta13  1  0.840  0.665  0.125  1.0
  Ta  Ta14  1  0.660  0.165  0.875  1.0
  Ta  Ta15  1  0.160  0.335  0.625  1.0
  Ta  Ta16  1  0.832  0.497  0.750  1.0
  Ta  Ta17  1  0.332  0.003  0.750  1.0
  Ta  Ta18  1  0.168  0.503  0.250  1.0
  Ta  Ta19  1  0.668  0.997  0.250  1.0
  Ge  Ge20  1  0.675  0.957  0.457  1.0
  Ge  Ge21  1  0.175  0.543  0.043  1.0
  Ge  Ge22  1  0.325  0.043  0.957  1.0
  Ge  Ge23  1  0.825  0.457  0.543  1.0
  Ge  Ge24  1  0.325  0.043  0.543  1.0
  Ge  Ge25  1  0.825  0.457  0.957  1.0
  Ge  Ge26  1  0.675  0.957  0.043  1.0
  Ge  Ge27  1  0.175  0.543  0.457  1.0
  Ge  Ge28  1  0.460  0.379  0.750  1.0
  Ge  Ge29  1  0.960  0.121  0.750  1.0
  Ge  Ge30  1  0.540  0.621  0.250  1.0
  Ge  Ge31  1  0.040  0.879  0.250  1.0
  Ge  Ge32  1  0.692  0.855  0.750  1.0
  Ge  Ge33  1  0.192  0.645  0.750  1.0
  Ge  Ge34  1  0.308  0.145  0.250  1.0
  Ge  Ge35  1  0.808  0.355  0.250  1.0
[/CIF]
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The material structure described by U2Ta3Ge4 crystallizes in the orthorhombic Pnma space group. U(1) is bonded in a 7-coordinate geometry to one Ge(2), two equivalent Ge(3), and four equivalent Ge(1) atoms. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded in a 6-coordinate geometry to one Ge(3), two equivalent Ge(2), and three equivalent Ge(1) atoms. In the second Ta site, Ta(2) is bonded to two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms to form distorted corner-sharing TaGe6 octahedra. The corner-sharing octahedral tilt angles range from 46-53°. There are three inequivalent Ge sites. In the first Ge site, Ge(3) is bonded in a 9-coordinate geometry to four equivalent U(1), two equivalent Ta(1), two equivalent Ta(2), and one Ge(2) atom. In the second Ge site, Ge(1) is bonded in a 9-coordinate geometry to four equivalent U(1), one Ta(2), three equivalent Ta(1), and one Ge(1) atom. In the third Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent U(1), two equivalent Ta(2), four equivalent Ta(1), and one Ge(3) atom. is represented by the CIF card [CIF]
data_U2Ta3Ge4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.033
_cell_length_b   7.133
_cell_length_c   13.395
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   671.999
_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
  U  U0  1  0.492  0.670  0.591  1.0
  U  U1  1  0.992  0.830  0.909  1.0
  U  U2  1  0.508  0.330  0.091  1.0
  U  U3  1  0.008  0.170  0.409  1.0
  U  U4  1  0.508  0.330  0.409  1.0
  U  U5  1  0.008  0.170  0.091  1.0
  U  U6  1  0.492  0.670  0.909  1.0
  U  U7  1  0.992  0.830  0.591  1.0
  Ta  Ta8  1  0.660  0.165  0.625  1.0
  Ta  Ta9  1  0.160  0.335  0.875  1.0
  Ta  Ta10  1  0.340  0.835  0.125  1.0
  Ta  Ta11  1  0.840  0.665  0.375  1.0
  Ta  Ta12  1  0.340  0.835  0.375  1.0
  Ta  Ta13  1  0.840  0.665  0.125  1.0
  Ta  Ta14  1  0.660  0.165  0.875  1.0
  Ta  Ta15  1  0.160  0.335  0.625  1.0
  Ta  Ta16  1  0.832  0.497  0.750  1.0
  Ta  Ta17  1  0.332  0.003  0.750  1.0
  Ta  Ta18  1  0.168  0.503  0.250  1.0
  Ta  Ta19  1  0.668  0.997  0.250  1.0
  Ge  Ge20  1  0.675  0.957  0.457  1.0
  Ge  Ge21  1  0.175  0.543  0.043  1.0
  Ge  Ge22  1  0.325  0.043  0.957  1.0
  Ge  Ge23  1  0.825  0.457  0.543  1.0
  Ge  Ge24  1  0.325  0.043  0.543  1.0
  Ge  Ge25  1  0.825  0.457  0.957  1.0
  Ge  Ge26  1  0.675  0.957  0.043  1.0
  Ge  Ge27  1  0.175  0.543  0.457  1.0
  Ge  Ge28  1  0.460  0.379  0.750  1.0
  Ge  Ge29  1  0.960  0.121  0.750  1.0
  Ge  Ge30  1  0.540  0.621  0.250  1.0
  Ge  Ge31  1  0.040  0.879  0.250  1.0
  Ge  Ge32  1  0.692  0.855  0.750  1.0
  Ge  Ge33  1  0.192  0.645  0.750  1.0
  Ge  Ge34  1  0.308  0.145  0.250  1.0
  Ge  Ge35  1  0.808  0.355  0.250  1.0
[/CIF]
.