The material structure described by Nd5Sn4 crystallizes in the orthorhombic Pnma space group. There are three inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 7-coordinate geometry to one Sn(3), two equivalent Sn(2), and four equivalent Sn(1) atoms. In the second Nd site, Nd(2) is bonded in a 6-coordinate geometry to one Sn(2), two equivalent Sn(3), and three equivalent Sn(1) atoms. In the third Nd site, Nd(3) is bonded to two equivalent Sn(1), two equivalent Sn(2), and two equivalent Sn(3) atoms to form corner-sharing NdSn6 octahedra. The corner-sharing octahedral tilt angles range from 50-55°. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 8-coordinate geometry to one Nd(3), three equivalent Nd(2), and four equivalent Nd(1) atoms. In the second Sn site, Sn(2) is bonded in a 9-coordinate geometry to two equivalent Nd(2), two equivalent Nd(3), four equivalent Nd(1), and one Sn(3) atom. In the third Sn site, Sn(3) is bonded in a 9-coordinate geometry to two equivalent Nd(1), two equivalent Nd(3), four equivalent Nd(2), and one Sn(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Nd5Sn4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.348
_cell_length_b   8.447
_cell_length_c   15.980
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1126.754
_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  0.028  0.178  0.399  1.0
  Nd  Nd1  1  0.379  0.838  0.118  1.0
  Nd  Nd2  1  0.121  0.338  0.618  1.0
  Nd  Nd3  1  0.472  0.678  0.899  1.0
  Nd  Nd4  1  0.879  0.662  0.118  1.0
  Nd  Nd5  1  0.121  0.338  0.882  1.0
  Nd  Nd6  1  0.208  0.503  0.250  1.0
  Nd  Nd7  1  0.708  0.997  0.250  1.0
  Nd  Nd8  1  0.472  0.678  0.601  1.0
  Nd  Nd9  1  0.292  0.003  0.750  1.0
  Nd  Nd10  1  0.621  0.162  0.618  1.0
  Nd  Nd11  1  0.792  0.497  0.750  1.0
  Nd  Nd12  1  0.879  0.662  0.382  1.0
  Nd  Nd13  1  0.028  0.178  0.101  1.0
  Nd  Nd14  1  0.972  0.822  0.899  1.0
  Nd  Nd15  1  0.621  0.162  0.882  1.0
  Nd  Nd16  1  0.528  0.322  0.101  1.0
  Nd  Nd17  1  0.379  0.838  0.382  1.0
  Nd  Nd18  1  0.972  0.822  0.601  1.0
  Nd  Nd19  1  0.528  0.322  0.399  1.0
  Sn  Sn20  1  0.781  0.468  0.543  1.0
  Sn  Sn21  1  0.719  0.968  0.457  1.0
  Sn  Sn22  1  0.669  0.860  0.750  1.0
  Sn  Sn23  1  0.219  0.532  0.457  1.0
  Sn  Sn24  1  0.281  0.032  0.957  1.0
  Sn  Sn25  1  0.831  0.360  0.250  1.0
  Sn  Sn26  1  0.781  0.468  0.957  1.0
  Sn  Sn27  1  0.580  0.614  0.250  1.0
  Sn  Sn28  1  0.219  0.532  0.043  1.0
  Sn  Sn29  1  0.420  0.386  0.750  1.0
  Sn  Sn30  1  0.169  0.640  0.750  1.0
  Sn  Sn31  1  0.920  0.114  0.750  1.0
  Sn  Sn32  1  0.281  0.032  0.543  1.0
  Sn  Sn33  1  0.719  0.968  0.043  1.0
  Sn  Sn34  1  0.331  0.140  0.250  1.0
  Sn  Sn35  1  0.080  0.886  0.250  1.0
[/CIF]
.
The material structure described by Nd5Sn4 crystallizes in the orthorhombic Pnma space group. There are three inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 7-coordinate geometry to one Sn(3), two equivalent Sn(2), and four equivalent Sn(1) atoms. In the second Nd site, Nd(2) is bonded in a 6-coordinate geometry to one Sn(2), two equivalent Sn(3), and three equivalent Sn(1) atoms. In the third Nd site, Nd(3) is bonded to two equivalent Sn(1), two equivalent Sn(2), and two equivalent Sn(3) atoms to form corner-sharing NdSn6 octahedra. The corner-sharing octahedral tilt angles range from 50-55°. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 8-coordinate geometry to one Nd(3), three equivalent Nd(2), and four equivalent Nd(1) atoms. In the second Sn site, Sn(2) is bonded in a 9-coordinate geometry to two equivalent Nd(2), two equivalent Nd(3), four equivalent Nd(1), and one Sn(3) atom. In the third Sn site, Sn(3) is bonded in a 9-coordinate geometry to two equivalent Nd(1), two equivalent Nd(3), four equivalent Nd(2), and one Sn(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Nd5Sn4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.348
_cell_length_b   8.447
_cell_length_c   15.980
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1126.754
_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  0.028  0.178  0.399  1.0
  Nd  Nd1  1  0.379  0.838  0.118  1.0
  Nd  Nd2  1  0.121  0.338  0.618  1.0
  Nd  Nd3  1  0.472  0.678  0.899  1.0
  Nd  Nd4  1  0.879  0.662  0.118  1.0
  Nd  Nd5  1  0.121  0.338  0.882  1.0
  Nd  Nd6  1  0.208  0.503  0.250  1.0
  Nd  Nd7  1  0.708  0.997  0.250  1.0
  Nd  Nd8  1  0.472  0.678  0.601  1.0
  Nd  Nd9  1  0.292  0.003  0.750  1.0
  Nd  Nd10  1  0.621  0.162  0.618  1.0
  Nd  Nd11  1  0.792  0.497  0.750  1.0
  Nd  Nd12  1  0.879  0.662  0.382  1.0
  Nd  Nd13  1  0.028  0.178  0.101  1.0
  Nd  Nd14  1  0.972  0.822  0.899  1.0
  Nd  Nd15  1  0.621  0.162  0.882  1.0
  Nd  Nd16  1  0.528  0.322  0.101  1.0
  Nd  Nd17  1  0.379  0.838  0.382  1.0
  Nd  Nd18  1  0.972  0.822  0.601  1.0
  Nd  Nd19  1  0.528  0.322  0.399  1.0
  Sn  Sn20  1  0.781  0.468  0.543  1.0
  Sn  Sn21  1  0.719  0.968  0.457  1.0
  Sn  Sn22  1  0.669  0.860  0.750  1.0
  Sn  Sn23  1  0.219  0.532  0.457  1.0
  Sn  Sn24  1  0.281  0.032  0.957  1.0
  Sn  Sn25  1  0.831  0.360  0.250  1.0
  Sn  Sn26  1  0.781  0.468  0.957  1.0
  Sn  Sn27  1  0.580  0.614  0.250  1.0
  Sn  Sn28  1  0.219  0.532  0.043  1.0
  Sn  Sn29  1  0.420  0.386  0.750  1.0
  Sn  Sn30  1  0.169  0.640  0.750  1.0
  Sn  Sn31  1  0.920  0.114  0.750  1.0
  Sn  Sn32  1  0.281  0.032  0.543  1.0
  Sn  Sn33  1  0.719  0.968  0.043  1.0
  Sn  Sn34  1  0.331  0.140  0.250  1.0
  Sn  Sn35  1  0.080  0.886  0.250  1.0
[/CIF]
.