The material described by Nd3Co8Sn4 is Hexagonal Laves-derived structured and crystallizes in the hexagonal P6_3mc space group. Nd(1) is bonded in a 14-coordinate geometry to two equivalent Co(1), two equivalent Co(4), four equivalent Co(2), two equivalent Sn(1), and four equivalent Sn(2) atoms. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent Nd(1), two equivalent Co(1), two equivalent Co(3), three equivalent Co(2), and three equivalent Sn(2) atoms to form distorted CoNd2Co7Sn3 cuboctahedra that share corners with four equivalent Co(1)Nd2Co7Sn3 cuboctahedra, corners with five equivalent Co(2)Nd4Co4Sn4 cuboctahedra, faces with two equivalent Co(3)Co9Sn3 cuboctahedra, faces with six equivalent Co(1)Nd2Co7Sn3 cuboctahedra, and faces with six equivalent Co(2)Nd4Co4Sn4 cuboctahedra. In the second Co site, Co(2) is bonded to four equivalent Nd(1), one Co(3), three equivalent Co(1), one Sn(1), and three equivalent Sn(2) atoms to form distorted CoNd4Co4Sn4 cuboctahedra that share  a cornercorner with one Co(3)Co9Sn3 cuboctahedra, corners with four equivalent Co(2)Nd4Co4Sn4 cuboctahedra, corners with five equivalent Co(1)Nd2Co7Sn3 cuboctahedra, faces with two equivalent Co(3)Co9Sn3 cuboctahedra, faces with six equivalent Co(1)Nd2Co7Sn3 cuboctahedra, and faces with eight equivalent Co(2)Nd4Co4Sn4 cuboctahedra. In the third Co site, Co(3) is bonded to three equivalent Co(2), six equivalent Co(1), and three equivalent Sn(2) atoms to form CoCo9Sn3 cuboctahedra that share corners with three equivalent Co(2)Nd4Co4Sn4 cuboctahedra, faces with two equivalent Co(3)Co9Sn3 cuboctahedra, faces with six equivalent Co(1)Nd2Co7Sn3 cuboctahedra, and faces with six equivalent Co(2)Nd4Co4Sn4 cuboctahedra. In the fourth Co site, Co(4) is bonded in a 10-coordinate geometry to six equivalent Nd(1), one Sn(1), and three equivalent Sn(2) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 10-coordinate geometry to six equivalent Nd(1), one Co(4), and three equivalent Co(2) atoms. In the second Sn site, Sn(2) is bonded in a 12-coordinate geometry to four equivalent Nd(1), one Co(3), one Co(4), three equivalent Co(1), and three equivalent Co(2) atoms. is represented by the CIF file [CIF]
data_Nd3(Co2Sn)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.015
_cell_length_b   9.015
_cell_length_c   7.591
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   534.337
_cell_formula_units_Z   2
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  0.473  0.945  0.778  1.0
  Nd  Nd1  1  0.473  0.527  0.778  1.0
  Nd  Nd2  1  0.527  0.055  0.278  1.0
  Nd  Nd3  1  0.055  0.527  0.778  1.0
  Nd  Nd4  1  0.527  0.473  0.278  1.0
  Nd  Nd5  1  0.945  0.473  0.278  1.0
  Co  Co6  1  0.095  0.190  0.753  1.0
  Co  Co7  1  0.095  0.905  0.753  1.0
  Co  Co8  1  0.905  0.810  0.253  1.0
  Co  Co9  1  0.810  0.905  0.753  1.0
  Co  Co10  1  0.905  0.095  0.253  1.0
  Co  Co11  1  0.190  0.095  0.253  1.0
  Co  Co12  1  0.844  0.688  0.944  1.0
  Co  Co13  1  0.844  0.156  0.944  1.0
  Co  Co14  1  0.156  0.312  0.444  1.0
  Co  Co15  1  0.312  0.156  0.944  1.0
  Co  Co16  1  0.156  0.844  0.444  1.0
  Co  Co17  1  0.688  0.844  0.444  1.0
  Co  Co18  1  0.000  0.000  0.997  1.0
  Co  Co19  1  0.000  0.000  0.497  1.0
  Co  Co20  1  0.667  0.333  0.582  1.0
  Co  Co21  1  0.333  0.667  0.082  1.0
  Sn  Sn22  1  0.667  0.333  0.946  1.0
  Sn  Sn23  1  0.333  0.667  0.446  1.0
  Sn  Sn24  1  0.830  0.661  0.571  1.0
  Sn  Sn25  1  0.830  0.170  0.571  1.0
  Sn  Sn26  1  0.170  0.339  0.071  1.0
  Sn  Sn27  1  0.339  0.170  0.571  1.0
  Sn  Sn28  1  0.170  0.830  0.071  1.0
  Sn  Sn29  1  0.661  0.830  0.071  1.0
[/CIF]
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The material described by Nd3Co8Sn4 is Hexagonal Laves-derived structured and crystallizes in the hexagonal P6_3mc space group. Nd(1) is bonded in a 14-coordinate geometry to two equivalent Co(1), two equivalent Co(4), four equivalent Co(2), two equivalent Sn(1), and four equivalent Sn(2) atoms. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent Nd(1), two equivalent Co(1), two equivalent Co(3), three equivalent Co(2), and three equivalent Sn(2) atoms to form distorted CoNd2Co7Sn3 cuboctahedra that share corners with four equivalent Co(1)Nd2Co7Sn3 cuboctahedra, corners with five equivalent Co(2)Nd4Co4Sn4 cuboctahedra, faces with two equivalent Co(3)Co9Sn3 cuboctahedra, faces with six equivalent Co(1)Nd2Co7Sn3 cuboctahedra, and faces with six equivalent Co(2)Nd4Co4Sn4 cuboctahedra. In the second Co site, Co(2) is bonded to four equivalent Nd(1), one Co(3), three equivalent Co(1), one Sn(1), and three equivalent Sn(2) atoms to form distorted CoNd4Co4Sn4 cuboctahedra that share  a cornercorner with one Co(3)Co9Sn3 cuboctahedra, corners with four equivalent Co(2)Nd4Co4Sn4 cuboctahedra, corners with five equivalent Co(1)Nd2Co7Sn3 cuboctahedra, faces with two equivalent Co(3)Co9Sn3 cuboctahedra, faces with six equivalent Co(1)Nd2Co7Sn3 cuboctahedra, and faces with eight equivalent Co(2)Nd4Co4Sn4 cuboctahedra. In the third Co site, Co(3) is bonded to three equivalent Co(2), six equivalent Co(1), and three equivalent Sn(2) atoms to form CoCo9Sn3 cuboctahedra that share corners with three equivalent Co(2)Nd4Co4Sn4 cuboctahedra, faces with two equivalent Co(3)Co9Sn3 cuboctahedra, faces with six equivalent Co(1)Nd2Co7Sn3 cuboctahedra, and faces with six equivalent Co(2)Nd4Co4Sn4 cuboctahedra. In the fourth Co site, Co(4) is bonded in a 10-coordinate geometry to six equivalent Nd(1), one Sn(1), and three equivalent Sn(2) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 10-coordinate geometry to six equivalent Nd(1), one Co(4), and three equivalent Co(2) atoms. In the second Sn site, Sn(2) is bonded in a 12-coordinate geometry to four equivalent Nd(1), one Co(3), one Co(4), three equivalent Co(1), and three equivalent Co(2) atoms. is represented by the CIF file [CIF]
data_Nd3(Co2Sn)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.015
_cell_length_b   9.015
_cell_length_c   7.591
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   534.337
_cell_formula_units_Z   2
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  0.473  0.945  0.778  1.0
  Nd  Nd1  1  0.473  0.527  0.778  1.0
  Nd  Nd2  1  0.527  0.055  0.278  1.0
  Nd  Nd3  1  0.055  0.527  0.778  1.0
  Nd  Nd4  1  0.527  0.473  0.278  1.0
  Nd  Nd5  1  0.945  0.473  0.278  1.0
  Co  Co6  1  0.095  0.190  0.753  1.0
  Co  Co7  1  0.095  0.905  0.753  1.0
  Co  Co8  1  0.905  0.810  0.253  1.0
  Co  Co9  1  0.810  0.905  0.753  1.0
  Co  Co10  1  0.905  0.095  0.253  1.0
  Co  Co11  1  0.190  0.095  0.253  1.0
  Co  Co12  1  0.844  0.688  0.944  1.0
  Co  Co13  1  0.844  0.156  0.944  1.0
  Co  Co14  1  0.156  0.312  0.444  1.0
  Co  Co15  1  0.312  0.156  0.944  1.0
  Co  Co16  1  0.156  0.844  0.444  1.0
  Co  Co17  1  0.688  0.844  0.444  1.0
  Co  Co18  1  0.000  0.000  0.997  1.0
  Co  Co19  1  0.000  0.000  0.497  1.0
  Co  Co20  1  0.667  0.333  0.582  1.0
  Co  Co21  1  0.333  0.667  0.082  1.0
  Sn  Sn22  1  0.667  0.333  0.946  1.0
  Sn  Sn23  1  0.333  0.667  0.446  1.0
  Sn  Sn24  1  0.830  0.661  0.571  1.0
  Sn  Sn25  1  0.830  0.170  0.571  1.0
  Sn  Sn26  1  0.170  0.339  0.071  1.0
  Sn  Sn27  1  0.339  0.170  0.571  1.0
  Sn  Sn28  1  0.170  0.830  0.071  1.0
  Sn  Sn29  1  0.661  0.830  0.071  1.0
[/CIF]
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