The crystal structure described by Nd8CoGa3 crystallizes in the hexagonal P6_3mc space group. There are four inequivalent Nd sites. In the first Nd site, Nd(1) is bonded to one Co(1) and four equivalent Ga(1) atoms to form distorted NdGa4Co trigonal pyramids that share corners with two equivalent Nd(4)Ga6 octahedra, corners with three equivalent Nd(2)Ga3Co tetrahedra, corners with six equivalent Nd(1)Ga4Co trigonal pyramids,  an edgeedge with one Nd(2)Ga3Co tetrahedra, edges with four equivalent Nd(1)Ga4Co trigonal pyramids, and faces with two equivalent Nd(4)Ga6 octahedra. The corner-sharing octahedral tilt angles range from 56-58°. In the second Nd site, Nd(2) is bonded to one Co(1) and three equivalent Ga(1) atoms to form distorted NdGa3Co tetrahedra that share corners with six equivalent Nd(4)Ga6 octahedra, corners with nine equivalent Nd(1)Ga4Co trigonal pyramids, and edges with three equivalent Nd(1)Ga4Co trigonal pyramids. The corner-sharing octahedral tilt angles range from 14-47°. In the third Nd site, Nd(3) is bonded in a 3-coordinate geometry to one Co(1) and four equivalent Ga(1) atoms. In the fourth Nd site, Nd(4) is bonded to six equivalent Ga(1) atoms to form distorted NdGa6 octahedra that share corners with six equivalent Nd(2)Ga3Co tetrahedra, corners with six equivalent Nd(1)Ga4Co trigonal pyramids, faces with two equivalent Nd(4)Ga6 octahedra, and faces with six equivalent Nd(1)Ga4Co trigonal pyramids. Co(1) is bonded in a 7-coordinate geometry to one Nd(2), three equivalent Nd(1), and three equivalent Nd(3) atoms. Ga(1) is bonded in a 11-coordinate geometry to one Nd(2), two equivalent Nd(4), four equivalent Nd(1), and four equivalent Nd(3) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Nd8Ga3Co
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.451
_cell_length_b   10.451
_cell_length_c   7.014
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   663.463
_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  0.829  0.657  0.495  1.0
  Nd  Nd1  1  0.343  0.171  0.495  1.0
  Nd  Nd2  1  0.829  0.171  0.495  1.0
  Nd  Nd3  1  0.171  0.343  0.995  1.0
  Nd  Nd4  1  0.657  0.829  0.995  1.0
  Nd  Nd5  1  0.171  0.829  0.995  1.0
  Nd  Nd6  1  0.667  0.333  0.172  1.0
  Nd  Nd7  1  0.333  0.667  0.672  1.0
  Nd  Nd8  1  0.537  0.074  0.789  1.0
  Nd  Nd9  1  0.926  0.463  0.789  1.0
  Nd  Nd10  1  0.537  0.463  0.789  1.0
  Nd  Nd11  1  0.463  0.926  0.289  1.0
  Nd  Nd12  1  0.074  0.537  0.289  1.0
  Nd  Nd13  1  0.463  0.537  0.289  1.0
  Nd  Nd14  1  0.000  0.000  0.778  1.0
  Nd  Nd15  1  0.000  0.000  0.278  1.0
  Ga  Ga16  1  0.836  0.671  0.035  1.0
  Ga  Ga17  1  0.329  0.164  0.035  1.0
  Ga  Ga18  1  0.836  0.164  0.035  1.0
  Ga  Ga19  1  0.164  0.329  0.535  1.0
  Ga  Ga20  1  0.671  0.836  0.535  1.0
  Ga  Ga21  1  0.164  0.836  0.535  1.0
  Co  Co22  1  0.667  0.333  0.556  1.0
  Co  Co23  1  0.333  0.667  0.056  1.0
[/CIF]
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The crystal structure described by Nd8CoGa3 crystallizes in the hexagonal P6_3mc space group. There are four inequivalent Nd sites. In the first Nd site, Nd(1) is bonded to one Co(1) and four equivalent Ga(1) atoms to form distorted NdGa4Co trigonal pyramids that share corners with two equivalent Nd(4)Ga6 octahedra, corners with three equivalent Nd(2)Ga3Co tetrahedra, corners with six equivalent Nd(1)Ga4Co trigonal pyramids,  an edgeedge with one Nd(2)Ga3Co tetrahedra, edges with four equivalent Nd(1)Ga4Co trigonal pyramids, and faces with two equivalent Nd(4)Ga6 octahedra. The corner-sharing octahedral tilt angles range from 56-58°. In the second Nd site, Nd(2) is bonded to one Co(1) and three equivalent Ga(1) atoms to form distorted NdGa3Co tetrahedra that share corners with six equivalent Nd(4)Ga6 octahedra, corners with nine equivalent Nd(1)Ga4Co trigonal pyramids, and edges with three equivalent Nd(1)Ga4Co trigonal pyramids. The corner-sharing octahedral tilt angles range from 14-47°. In the third Nd site, Nd(3) is bonded in a 3-coordinate geometry to one Co(1) and four equivalent Ga(1) atoms. In the fourth Nd site, Nd(4) is bonded to six equivalent Ga(1) atoms to form distorted NdGa6 octahedra that share corners with six equivalent Nd(2)Ga3Co tetrahedra, corners with six equivalent Nd(1)Ga4Co trigonal pyramids, faces with two equivalent Nd(4)Ga6 octahedra, and faces with six equivalent Nd(1)Ga4Co trigonal pyramids. Co(1) is bonded in a 7-coordinate geometry to one Nd(2), three equivalent Nd(1), and three equivalent Nd(3) atoms. Ga(1) is bonded in a 11-coordinate geometry to one Nd(2), two equivalent Nd(4), four equivalent Nd(1), and four equivalent Nd(3) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Nd8Ga3Co
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.451
_cell_length_b   10.451
_cell_length_c   7.014
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   663.463
_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  0.829  0.657  0.495  1.0
  Nd  Nd1  1  0.343  0.171  0.495  1.0
  Nd  Nd2  1  0.829  0.171  0.495  1.0
  Nd  Nd3  1  0.171  0.343  0.995  1.0
  Nd  Nd4  1  0.657  0.829  0.995  1.0
  Nd  Nd5  1  0.171  0.829  0.995  1.0
  Nd  Nd6  1  0.667  0.333  0.172  1.0
  Nd  Nd7  1  0.333  0.667  0.672  1.0
  Nd  Nd8  1  0.537  0.074  0.789  1.0
  Nd  Nd9  1  0.926  0.463  0.789  1.0
  Nd  Nd10  1  0.537  0.463  0.789  1.0
  Nd  Nd11  1  0.463  0.926  0.289  1.0
  Nd  Nd12  1  0.074  0.537  0.289  1.0
  Nd  Nd13  1  0.463  0.537  0.289  1.0
  Nd  Nd14  1  0.000  0.000  0.778  1.0
  Nd  Nd15  1  0.000  0.000  0.278  1.0
  Ga  Ga16  1  0.836  0.671  0.035  1.0
  Ga  Ga17  1  0.329  0.164  0.035  1.0
  Ga  Ga18  1  0.836  0.164  0.035  1.0
  Ga  Ga19  1  0.164  0.329  0.535  1.0
  Ga  Ga20  1  0.671  0.836  0.535  1.0
  Ga  Ga21  1  0.164  0.836  0.535  1.0
  Co  Co22  1  0.667  0.333  0.556  1.0
  Co  Co23  1  0.333  0.667  0.056  1.0
[/CIF]
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