The compound described by Nd5Ge4 crystallizes in the orthorhombic Pnma space group. There are three inequivalent Nd sites. In the first Nd site, Nd(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 Nd site, Nd(2) is bonded to one Ge(2), two equivalent Ge(3), and three equivalent Ge(1) atoms to form a mixture of distorted corner, face, and edge-sharing NdGe6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 41-44°. In the third Nd site, Nd(3) is bonded to two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms to form a mixture of corner and face-sharing NdGe6 octahedra. The corner-sharing octahedral tilt angles range from 55-56°. There are three inequivalent Ge sites. In the first Ge site, Ge(3) is bonded in a 9-coordinate geometry to two equivalent Nd(1), two equivalent Nd(3), four equivalent Nd(2), and one Ge(2) atom. In the second Ge site, Ge(1) is bonded in a 7-coordinate geometry to one Nd(3), three equivalent Nd(1), and three equivalent Nd(2) atoms. In the third Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Nd(2), two equivalent Nd(3), four equivalent Nd(1), and one Ge(3) atom. is represented by the CIF file [CIF]
data_Nd5Ge4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.947
_cell_length_b   8.031
_cell_length_c   15.204
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   970.397
_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
  Nd  Nd0  1  0.392  0.162  0.887  1.0
  Nd  Nd1  1  0.892  0.338  0.613  1.0
  Nd  Nd2  1  0.108  0.662  0.113  1.0
  Nd  Nd3  1  0.608  0.838  0.387  1.0
  Nd  Nd4  1  0.392  0.162  0.613  1.0
  Nd  Nd5  1  0.892  0.338  0.887  1.0
  Nd  Nd6  1  0.108  0.662  0.387  1.0
  Nd  Nd7  1  0.608  0.838  0.113  1.0
  Nd  Nd8  1  0.040  0.825  0.605  1.0
  Nd  Nd9  1  0.540  0.675  0.895  1.0
  Nd  Nd10  1  0.460  0.325  0.395  1.0
  Nd  Nd11  1  0.960  0.175  0.105  1.0
  Nd  Nd12  1  0.960  0.175  0.395  1.0
  Nd  Nd13  1  0.460  0.325  0.105  1.0
  Nd  Nd14  1  0.540  0.675  0.605  1.0
  Nd  Nd15  1  0.040  0.825  0.895  1.0
  Nd  Nd16  1  0.277  0.999  0.250  1.0
  Nd  Nd17  1  0.777  0.501  0.250  1.0
  Nd  Nd18  1  0.223  0.499  0.750  1.0
  Nd  Nd19  1  0.723  0.001  0.750  1.0
  Ge  Ge20  1  0.769  0.524  0.453  1.0
  Ge  Ge21  1  0.269  0.976  0.047  1.0
  Ge  Ge22  1  0.731  0.024  0.547  1.0
  Ge  Ge23  1  0.231  0.476  0.953  1.0
  Ge  Ge24  1  0.231  0.476  0.547  1.0
  Ge  Ge25  1  0.731  0.024  0.953  1.0
  Ge  Ge26  1  0.269  0.976  0.453  1.0
  Ge  Ge27  1  0.769  0.524  0.047  1.0
  Ge  Ge28  1  0.899  0.889  0.250  1.0
  Ge  Ge29  1  0.399  0.611  0.250  1.0
  Ge  Ge30  1  0.601  0.389  0.750  1.0
  Ge  Ge31  1  0.101  0.111  0.750  1.0
  Ge  Ge32  1  0.163  0.372  0.250  1.0
  Ge  Ge33  1  0.663  0.128  0.250  1.0
  Ge  Ge34  1  0.337  0.872  0.750  1.0
  Ge  Ge35  1  0.837  0.628  0.750  1.0
[/CIF]
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The compound described by Nd5Ge4 crystallizes in the orthorhombic Pnma space group. There are three inequivalent Nd sites. In the first Nd site, Nd(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 Nd site, Nd(2) is bonded to one Ge(2), two equivalent Ge(3), and three equivalent Ge(1) atoms to form a mixture of distorted corner, face, and edge-sharing NdGe6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 41-44°. In the third Nd site, Nd(3) is bonded to two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms to form a mixture of corner and face-sharing NdGe6 octahedra. The corner-sharing octahedral tilt angles range from 55-56°. There are three inequivalent Ge sites. In the first Ge site, Ge(3) is bonded in a 9-coordinate geometry to two equivalent Nd(1), two equivalent Nd(3), four equivalent Nd(2), and one Ge(2) atom. In the second Ge site, Ge(1) is bonded in a 7-coordinate geometry to one Nd(3), three equivalent Nd(1), and three equivalent Nd(2) atoms. In the third Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Nd(2), two equivalent Nd(3), four equivalent Nd(1), and one Ge(3) atom. is represented by the CIF file [CIF]
data_Nd5Ge4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.947
_cell_length_b   8.031
_cell_length_c   15.204
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   970.397
_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
  Nd  Nd0  1  0.392  0.162  0.887  1.0
  Nd  Nd1  1  0.892  0.338  0.613  1.0
  Nd  Nd2  1  0.108  0.662  0.113  1.0
  Nd  Nd3  1  0.608  0.838  0.387  1.0
  Nd  Nd4  1  0.392  0.162  0.613  1.0
  Nd  Nd5  1  0.892  0.338  0.887  1.0
  Nd  Nd6  1  0.108  0.662  0.387  1.0
  Nd  Nd7  1  0.608  0.838  0.113  1.0
  Nd  Nd8  1  0.040  0.825  0.605  1.0
  Nd  Nd9  1  0.540  0.675  0.895  1.0
  Nd  Nd10  1  0.460  0.325  0.395  1.0
  Nd  Nd11  1  0.960  0.175  0.105  1.0
  Nd  Nd12  1  0.960  0.175  0.395  1.0
  Nd  Nd13  1  0.460  0.325  0.105  1.0
  Nd  Nd14  1  0.540  0.675  0.605  1.0
  Nd  Nd15  1  0.040  0.825  0.895  1.0
  Nd  Nd16  1  0.277  0.999  0.250  1.0
  Nd  Nd17  1  0.777  0.501  0.250  1.0
  Nd  Nd18  1  0.223  0.499  0.750  1.0
  Nd  Nd19  1  0.723  0.001  0.750  1.0
  Ge  Ge20  1  0.769  0.524  0.453  1.0
  Ge  Ge21  1  0.269  0.976  0.047  1.0
  Ge  Ge22  1  0.731  0.024  0.547  1.0
  Ge  Ge23  1  0.231  0.476  0.953  1.0
  Ge  Ge24  1  0.231  0.476  0.547  1.0
  Ge  Ge25  1  0.731  0.024  0.953  1.0
  Ge  Ge26  1  0.269  0.976  0.453  1.0
  Ge  Ge27  1  0.769  0.524  0.047  1.0
  Ge  Ge28  1  0.899  0.889  0.250  1.0
  Ge  Ge29  1  0.399  0.611  0.250  1.0
  Ge  Ge30  1  0.601  0.389  0.750  1.0
  Ge  Ge31  1  0.101  0.111  0.750  1.0
  Ge  Ge32  1  0.163  0.372  0.250  1.0
  Ge  Ge33  1  0.663  0.128  0.250  1.0
  Ge  Ge34  1  0.337  0.872  0.750  1.0
  Ge  Ge35  1  0.837  0.628  0.750  1.0
[/CIF]
.