The compound described by Nd2Co12P7 crystallizes in the hexagonal P-6 space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 18-coordinate geometry to three equivalent Co(1), three equivalent Co(3), six equivalent Co(2), and six equivalent P(1) atoms. In the second Nd site, Nd(2) is bonded in a 15-coordinate geometry to three equivalent Co(2), six equivalent Co(1), and six equivalent P(3) atoms. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to one Nd(1), two equivalent Nd(2), two equivalent P(1), and two equivalent P(3) atoms to form distorted CoNd3P4 tetrahedra that share corners with four equivalent Co(2)Nd3P4 tetrahedra, corners with four equivalent Co(3)NdP4 tetrahedra, corners with six equivalent Co(1)Nd3P4 tetrahedra,  an edgeedge with one Co(3)NdP4 tetrahedra, edges with two equivalent Co(1)Nd3P4 tetrahedra, edges with four equivalent Co(2)Nd3P4 tetrahedra,  a faceface with one Co(3)NdP4 tetrahedra, faces with two equivalent Co(1)Nd3P4 tetrahedra, and faces with two equivalent Co(2)Nd3P4 tetrahedra. In the second Co site, Co(2) is bonded to one Nd(2), two equivalent Nd(1), two equivalent P(1), and two equivalent P(3) atoms to form distorted CoNd3P4 tetrahedra that share corners with two equivalent Co(3)NdP4 tetrahedra, corners with four equivalent Co(1)Nd3P4 tetrahedra, corners with six equivalent Co(2)Nd3P4 tetrahedra, edges with two equivalent Co(2)Nd3P4 tetrahedra, edges with two equivalent Co(3)NdP4 tetrahedra, edges with four equivalent Co(1)Nd3P4 tetrahedra, faces with two equivalent Co(1)Nd3P4 tetrahedra, faces with two equivalent Co(2)Nd3P4 tetrahedra, and faces with two equivalent Co(3)NdP4 tetrahedra. In the third Co site, Co(3) is bonded to one Nd(1), one P(2), one P(3), and two equivalent P(1) atoms to form distorted CoNdP4 tetrahedra that share corners with two equivalent Co(2)Nd3P4 tetrahedra, corners with four equivalent Co(1)Nd3P4 tetrahedra, corners with six equivalent Co(3)NdP4 tetrahedra,  an edgeedge with one Co(1)Nd3P4 tetrahedra, edges with two equivalent Co(2)Nd3P4 tetrahedra,  a faceface with one Co(1)Nd3P4 tetrahedra, and faces with two equivalent Co(2)Nd3P4 tetrahedra. In the fourth Co site, Co(4) is bonded in a 5-coordinate geometry to one P(1), two equivalent P(2), and two equivalent P(3) atoms. There are three inequivalent P sites. In the first P site, P(1) is bonded in a 9-coordinate geometry to two equivalent Nd(1), one Co(4), two equivalent Co(1), two equivalent Co(2), and two equivalent Co(3) atoms. In the second P site, P(2) is bonded in a 9-coordinate geometry to three equivalent Co(3) and six equivalent Co(4) atoms. In the third P site, P(3) is bonded in a 9-coordinate geometry to two equivalent Nd(2), one Co(3), two equivalent Co(1), two equivalent Co(2), and two equivalent Co(4) atoms. is represented by the CIF file [CIF]
data_Nd2Co12P7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.978
_cell_length_b   8.979
_cell_length_c   3.686
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.004
_symmetry_Int_Tables_number   1
_cell_volume   257.322
_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  0.000  1.000  0.000  1.0
  Nd  Nd1  1  0.333  0.667  0.500  1.0
  Co  Co2  1  0.092  0.392  0.000  1.0
  Co  Co3  1  0.608  0.700  0.000  1.0
  Co  Co4  1  0.300  0.908  0.000  1.0
  Co  Co5  1  0.048  0.762  0.500  1.0
  Co  Co6  1  0.238  0.286  0.500  1.0
  Co  Co7  1  0.714  0.952  0.500  1.0
  Co  Co8  1  0.818  0.605  0.000  1.0
  Co  Co9  1  0.395  0.213  0.000  1.0
  Co  Co10  1  0.787  0.182  0.000  1.0
  Co  Co11  1  0.875  0.426  0.500  1.0
  Co  Co12  1  0.574  0.449  0.500  1.0
  Co  Co13  1  0.551  0.125  0.500  1.0
  P  P14  1  0.773  0.732  0.500  1.0
  P  P15  1  0.268  0.042  0.500  1.0
  P  P16  1  0.958  0.227  0.500  1.0
  P  P17  1  0.667  0.333  0.000  1.0
  P  P18  1  0.074  0.637  1.000  1.0
  P  P19  1  0.364  0.437  1.000  1.0
  P  P20  1  0.563  0.926  0.000  1.0
[/CIF]
.
The compound described by Nd2Co12P7 crystallizes in the hexagonal P-6 space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 18-coordinate geometry to three equivalent Co(1), three equivalent Co(3), six equivalent Co(2), and six equivalent P(1) atoms. In the second Nd site, Nd(2) is bonded in a 15-coordinate geometry to three equivalent Co(2), six equivalent Co(1), and six equivalent P(3) atoms. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to one Nd(1), two equivalent Nd(2), two equivalent P(1), and two equivalent P(3) atoms to form distorted CoNd3P4 tetrahedra that share corners with four equivalent Co(2)Nd3P4 tetrahedra, corners with four equivalent Co(3)NdP4 tetrahedra, corners with six equivalent Co(1)Nd3P4 tetrahedra,  an edgeedge with one Co(3)NdP4 tetrahedra, edges with two equivalent Co(1)Nd3P4 tetrahedra, edges with four equivalent Co(2)Nd3P4 tetrahedra,  a faceface with one Co(3)NdP4 tetrahedra, faces with two equivalent Co(1)Nd3P4 tetrahedra, and faces with two equivalent Co(2)Nd3P4 tetrahedra. In the second Co site, Co(2) is bonded to one Nd(2), two equivalent Nd(1), two equivalent P(1), and two equivalent P(3) atoms to form distorted CoNd3P4 tetrahedra that share corners with two equivalent Co(3)NdP4 tetrahedra, corners with four equivalent Co(1)Nd3P4 tetrahedra, corners with six equivalent Co(2)Nd3P4 tetrahedra, edges with two equivalent Co(2)Nd3P4 tetrahedra, edges with two equivalent Co(3)NdP4 tetrahedra, edges with four equivalent Co(1)Nd3P4 tetrahedra, faces with two equivalent Co(1)Nd3P4 tetrahedra, faces with two equivalent Co(2)Nd3P4 tetrahedra, and faces with two equivalent Co(3)NdP4 tetrahedra. In the third Co site, Co(3) is bonded to one Nd(1), one P(2), one P(3), and two equivalent P(1) atoms to form distorted CoNdP4 tetrahedra that share corners with two equivalent Co(2)Nd3P4 tetrahedra, corners with four equivalent Co(1)Nd3P4 tetrahedra, corners with six equivalent Co(3)NdP4 tetrahedra,  an edgeedge with one Co(1)Nd3P4 tetrahedra, edges with two equivalent Co(2)Nd3P4 tetrahedra,  a faceface with one Co(1)Nd3P4 tetrahedra, and faces with two equivalent Co(2)Nd3P4 tetrahedra. In the fourth Co site, Co(4) is bonded in a 5-coordinate geometry to one P(1), two equivalent P(2), and two equivalent P(3) atoms. There are three inequivalent P sites. In the first P site, P(1) is bonded in a 9-coordinate geometry to two equivalent Nd(1), one Co(4), two equivalent Co(1), two equivalent Co(2), and two equivalent Co(3) atoms. In the second P site, P(2) is bonded in a 9-coordinate geometry to three equivalent Co(3) and six equivalent Co(4) atoms. In the third P site, P(3) is bonded in a 9-coordinate geometry to two equivalent Nd(2), one Co(3), two equivalent Co(1), two equivalent Co(2), and two equivalent Co(4) atoms. is represented by the CIF file [CIF]
data_Nd2Co12P7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.978
_cell_length_b   8.979
_cell_length_c   3.686
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.004
_symmetry_Int_Tables_number   1
_cell_volume   257.322
_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  0.000  1.000  0.000  1.0
  Nd  Nd1  1  0.333  0.667  0.500  1.0
  Co  Co2  1  0.092  0.392  0.000  1.0
  Co  Co3  1  0.608  0.700  0.000  1.0
  Co  Co4  1  0.300  0.908  0.000  1.0
  Co  Co5  1  0.048  0.762  0.500  1.0
  Co  Co6  1  0.238  0.286  0.500  1.0
  Co  Co7  1  0.714  0.952  0.500  1.0
  Co  Co8  1  0.818  0.605  0.000  1.0
  Co  Co9  1  0.395  0.213  0.000  1.0
  Co  Co10  1  0.787  0.182  0.000  1.0
  Co  Co11  1  0.875  0.426  0.500  1.0
  Co  Co12  1  0.574  0.449  0.500  1.0
  Co  Co13  1  0.551  0.125  0.500  1.0
  P  P14  1  0.773  0.732  0.500  1.0
  P  P15  1  0.268  0.042  0.500  1.0
  P  P16  1  0.958  0.227  0.500  1.0
  P  P17  1  0.667  0.333  0.000  1.0
  P  P18  1  0.074  0.637  1.000  1.0
  P  P19  1  0.364  0.437  1.000  1.0
  P  P20  1  0.563  0.926  0.000  1.0
[/CIF]
.