The compound described by Nd2Co15Ga2 crystallizes in the trigonal R-3m space group. Nd(1) is bonded in a 19-coordinate geometry to three equivalent Co(1), six equivalent Co(2), nine equivalent Co(3), and one Ga(1) atom. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent Nd(1), four equivalent Co(2), four equivalent Co(3), and two equivalent Ga(1) atoms to form distorted CoNd2Ga2Co8 cuboctahedra that share corners with four equivalent Co(1)Nd2Ga2Co8 cuboctahedra, corners with ten equivalent Co(3)Nd3GaCo8 cuboctahedra, edges with six equivalent Co(3)Nd3GaCo8 cuboctahedra, faces with four equivalent Co(1)Nd2Ga2Co8 cuboctahedra, and faces with six equivalent Co(3)Nd3GaCo8 cuboctahedra. In the second Co site, Co(2) is bonded in a distorted q6 geometry to two equivalent Nd(1), two equivalent Co(1), two equivalent Co(2), four equivalent Co(3), and two equivalent Ga(1) atoms. In the third Co site, Co(3) is bonded to three equivalent Nd(1), two equivalent Co(1), two equivalent Co(3), four equivalent Co(2), and one Ga(1) atom to form CoNd3GaCo8 cuboctahedra that share corners with five equivalent Co(1)Nd2Ga2Co8 cuboctahedra, corners with ten equivalent Co(3)Nd3GaCo8 cuboctahedra, edges with three equivalent Co(1)Nd2Ga2Co8 cuboctahedra, edges with five equivalent Co(3)Nd3GaCo8 cuboctahedra, faces with three equivalent Co(1)Nd2Ga2Co8 cuboctahedra, and faces with seven equivalent Co(3)Nd3GaCo8 cuboctahedra. Ga(1) is bonded in a 14-coordinate geometry to one Nd(1), three equivalent Co(1), three equivalent Co(3), six equivalent Co(2), and one Ga(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Nd2Ga2Co15
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.371
_cell_length_b   6.371
_cell_length_c   6.371
_cell_angle_alpha   83.124
_cell_angle_beta   83.124
_cell_angle_gamma   83.124
_symmetry_Int_Tables_number   1
_cell_volume   253.446
_cell_formula_units_Z   1
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  0.649  0.649  0.649  1.0
  Nd  Nd1  1  0.351  0.351  0.351  1.0
  Ga  Ga2  1  0.893  0.893  0.893  1.0
  Ga  Ga3  1  0.107  0.107  0.107  1.0
  Co  Co4  1  0.000  0.000  0.500  1.0
  Co  Co5  1  0.500  0.000  0.000  1.0
  Co  Co6  1  0.000  0.500  0.000  1.0
  Co  Co7  1  0.714  0.286  0.000  1.0
  Co  Co8  1  0.000  0.714  0.286  1.0
  Co  Co9  1  0.286  0.000  0.714  1.0
  Co  Co10  1  0.000  0.286  0.714  1.0
  Co  Co11  1  0.714  0.000  0.286  1.0
  Co  Co12  1  0.286  0.714  0.000  1.0
  Co  Co13  1  0.348  0.348  0.850  1.0
  Co  Co14  1  0.850  0.348  0.348  1.0
  Co  Co15  1  0.348  0.850  0.348  1.0
  Co  Co16  1  0.652  0.652  0.150  1.0
  Co  Co17  1  0.150  0.652  0.652  1.0
  Co  Co18  1  0.652  0.150  0.652  1.0
[/CIF]
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The compound described by Nd2Co15Ga2 crystallizes in the trigonal R-3m space group. Nd(1) is bonded in a 19-coordinate geometry to three equivalent Co(1), six equivalent Co(2), nine equivalent Co(3), and one Ga(1) atom. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent Nd(1), four equivalent Co(2), four equivalent Co(3), and two equivalent Ga(1) atoms to form distorted CoNd2Ga2Co8 cuboctahedra that share corners with four equivalent Co(1)Nd2Ga2Co8 cuboctahedra, corners with ten equivalent Co(3)Nd3GaCo8 cuboctahedra, edges with six equivalent Co(3)Nd3GaCo8 cuboctahedra, faces with four equivalent Co(1)Nd2Ga2Co8 cuboctahedra, and faces with six equivalent Co(3)Nd3GaCo8 cuboctahedra. In the second Co site, Co(2) is bonded in a distorted q6 geometry to two equivalent Nd(1), two equivalent Co(1), two equivalent Co(2), four equivalent Co(3), and two equivalent Ga(1) atoms. In the third Co site, Co(3) is bonded to three equivalent Nd(1), two equivalent Co(1), two equivalent Co(3), four equivalent Co(2), and one Ga(1) atom to form CoNd3GaCo8 cuboctahedra that share corners with five equivalent Co(1)Nd2Ga2Co8 cuboctahedra, corners with ten equivalent Co(3)Nd3GaCo8 cuboctahedra, edges with three equivalent Co(1)Nd2Ga2Co8 cuboctahedra, edges with five equivalent Co(3)Nd3GaCo8 cuboctahedra, faces with three equivalent Co(1)Nd2Ga2Co8 cuboctahedra, and faces with seven equivalent Co(3)Nd3GaCo8 cuboctahedra. Ga(1) is bonded in a 14-coordinate geometry to one Nd(1), three equivalent Co(1), three equivalent Co(3), six equivalent Co(2), and one Ga(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Nd2Ga2Co15
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.371
_cell_length_b   6.371
_cell_length_c   6.371
_cell_angle_alpha   83.124
_cell_angle_beta   83.124
_cell_angle_gamma   83.124
_symmetry_Int_Tables_number   1
_cell_volume   253.446
_cell_formula_units_Z   1
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  0.649  0.649  0.649  1.0
  Nd  Nd1  1  0.351  0.351  0.351  1.0
  Ga  Ga2  1  0.893  0.893  0.893  1.0
  Ga  Ga3  1  0.107  0.107  0.107  1.0
  Co  Co4  1  0.000  0.000  0.500  1.0
  Co  Co5  1  0.500  0.000  0.000  1.0
  Co  Co6  1  0.000  0.500  0.000  1.0
  Co  Co7  1  0.714  0.286  0.000  1.0
  Co  Co8  1  0.000  0.714  0.286  1.0
  Co  Co9  1  0.286  0.000  0.714  1.0
  Co  Co10  1  0.000  0.286  0.714  1.0
  Co  Co11  1  0.714  0.000  0.286  1.0
  Co  Co12  1  0.286  0.714  0.000  1.0
  Co  Co13  1  0.348  0.348  0.850  1.0
  Co  Co14  1  0.850  0.348  0.348  1.0
  Co  Co15  1  0.348  0.850  0.348  1.0
  Co  Co16  1  0.652  0.652  0.150  1.0
  Co  Co17  1  0.150  0.652  0.652  1.0
  Co  Co18  1  0.652  0.150  0.652  1.0
[/CIF]
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