The structure described by Nb2Co4P3 crystallizes in the hexagonal P-62m space group. There are three inequivalent Nb sites. In the first Nb site, Nb(1) is bonded in a 14-coordinate geometry to two equivalent Co(1), two equivalent Co(4), four equivalent Co(2), two equivalent P(3), and four equivalent P(1) atoms. In the second Nb site, Nb(2) is bonded in a 6-coordinate geometry to six equivalent P(2) atoms. In the third Nb site, Nb(3) is bonded in a 13-coordinate geometry to two equivalent Co(1), two equivalent Co(2), four equivalent Co(3), one P(3), and four equivalent P(2) atoms. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent Nb(1), two equivalent Nb(3), two equivalent P(1), and two equivalent P(2) atoms to form distorted CoNb4P4 tetrahedra that share corners with two equivalent Co(1)Nb4P4 tetrahedra, corners with four equivalent Co(2)Nb3P4 tetrahedra, edges with two equivalent Co(1)Nb4P4 tetrahedra, and faces with four equivalent Co(2)Nb3P4 tetrahedra. In the second Co site, Co(2) is bonded to one Nb(3), two equivalent Nb(1), one P(1), one P(3), and two equivalent P(2) atoms to form distorted CoNb3P4 tetrahedra that share corners with two equivalent Co(2)Nb3P4 tetrahedra, corners with two equivalent Co(1)Nb4P4 tetrahedra, edges with three equivalent Co(2)Nb3P4 tetrahedra,  a faceface with one Co(2)Nb3P4 tetrahedra, and faces with two equivalent Co(1)Nb4P4 tetrahedra. In the third Co site, Co(3) is bonded in a 4-coordinate geometry to two equivalent Nb(3), two equivalent P(2), and two equivalent P(3) atoms. In the fourth Co site, Co(4) is bonded in a distorted trigonal planar geometry to six equivalent Nb(1) and three equivalent P(1) atoms. There are three inequivalent P sites. In the first P site, P(3) is bonded in a 9-coordinate geometry to one Nb(3), two equivalent Nb(1), two equivalent Co(2), and four equivalent Co(3) atoms. In the second P site, P(1) is bonded in a 9-coordinate geometry to four equivalent Nb(1), one Co(4), two equivalent Co(1), and two equivalent Co(2) atoms. In the third P site, P(2) is bonded in a 9-coordinate geometry to two equivalent Nb(2), two equivalent Nb(3), one Co(1), two equivalent Co(2), and two equivalent Co(3) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Nb2Co4P3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.918
_cell_length_b   11.918
_cell_length_c   3.607
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   443.737
_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
  Nb  Nb0  1  0.824  0.000  0.500  1.0
  Nb  Nb1  1  0.000  0.824  0.500  1.0
  Nb  Nb2  1  0.176  0.176  0.500  1.0
  Nb  Nb3  1  0.333  0.667  0.000  1.0
  Nb  Nb4  1  0.667  0.333  0.000  1.0
  Nb  Nb5  1  0.448  0.000  0.000  1.0
  Nb  Nb6  1  0.000  0.448  0.000  1.0
  Nb  Nb7  1  0.552  0.552  0.000  1.0
  Co  Co8  1  0.276  0.000  0.500  1.0
  Co  Co9  1  0.000  0.276  0.500  1.0
  Co  Co10  1  0.724  0.724  0.500  1.0
  Co  Co11  1  0.629  0.808  0.000  1.0
  Co  Co12  1  0.192  0.821  0.000  1.0
  Co  Co13  1  0.179  0.371  0.000  1.0
  Co  Co14  1  0.371  0.179  0.000  1.0
  Co  Co15  1  0.808  0.629  0.000  1.0
  Co  Co16  1  0.821  0.192  0.000  1.0
  Co  Co17  1  0.517  0.871  0.500  1.0
  Co  Co18  1  0.129  0.646  0.500  1.0
  Co  Co19  1  0.354  0.483  0.500  1.0
  Co  Co20  1  0.483  0.354  0.500  1.0
  Co  Co21  1  0.871  0.517  0.500  1.0
  Co  Co22  1  0.646  0.129  0.500  1.0
  Co  Co23  1  0.000  0.000  0.000  1.0
  P  P24  1  0.176  0.000  0.000  1.0
  P  P25  1  0.000  0.176  0.000  1.0
  P  P26  1  0.824  0.824  0.000  1.0
  P  P27  1  0.516  0.688  0.500  1.0
  P  P28  1  0.312  0.828  0.500  1.0
  P  P29  1  0.172  0.484  0.500  1.0
  P  P30  1  0.484  0.172  0.500  1.0
  P  P31  1  0.688  0.516  0.500  1.0
  P  P32  1  0.828  0.312  0.500  1.0
  P  P33  1  0.650  0.000  0.000  1.0
  P  P34  1  0.000  0.650  0.000  1.0
  P  P35  1  0.350  0.350  0.000  1.0
[/CIF]
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The structure described by Nb2Co4P3 crystallizes in the hexagonal P-62m space group. There are three inequivalent Nb sites. In the first Nb site, Nb(1) is bonded in a 14-coordinate geometry to two equivalent Co(1), two equivalent Co(4), four equivalent Co(2), two equivalent P(3), and four equivalent P(1) atoms. In the second Nb site, Nb(2) is bonded in a 6-coordinate geometry to six equivalent P(2) atoms. In the third Nb site, Nb(3) is bonded in a 13-coordinate geometry to two equivalent Co(1), two equivalent Co(2), four equivalent Co(3), one P(3), and four equivalent P(2) atoms. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent Nb(1), two equivalent Nb(3), two equivalent P(1), and two equivalent P(2) atoms to form distorted CoNb4P4 tetrahedra that share corners with two equivalent Co(1)Nb4P4 tetrahedra, corners with four equivalent Co(2)Nb3P4 tetrahedra, edges with two equivalent Co(1)Nb4P4 tetrahedra, and faces with four equivalent Co(2)Nb3P4 tetrahedra. In the second Co site, Co(2) is bonded to one Nb(3), two equivalent Nb(1), one P(1), one P(3), and two equivalent P(2) atoms to form distorted CoNb3P4 tetrahedra that share corners with two equivalent Co(2)Nb3P4 tetrahedra, corners with two equivalent Co(1)Nb4P4 tetrahedra, edges with three equivalent Co(2)Nb3P4 tetrahedra,  a faceface with one Co(2)Nb3P4 tetrahedra, and faces with two equivalent Co(1)Nb4P4 tetrahedra. In the third Co site, Co(3) is bonded in a 4-coordinate geometry to two equivalent Nb(3), two equivalent P(2), and two equivalent P(3) atoms. In the fourth Co site, Co(4) is bonded in a distorted trigonal planar geometry to six equivalent Nb(1) and three equivalent P(1) atoms. There are three inequivalent P sites. In the first P site, P(3) is bonded in a 9-coordinate geometry to one Nb(3), two equivalent Nb(1), two equivalent Co(2), and four equivalent Co(3) atoms. In the second P site, P(1) is bonded in a 9-coordinate geometry to four equivalent Nb(1), one Co(4), two equivalent Co(1), and two equivalent Co(2) atoms. In the third P site, P(2) is bonded in a 9-coordinate geometry to two equivalent Nb(2), two equivalent Nb(3), one Co(1), two equivalent Co(2), and two equivalent Co(3) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Nb2Co4P3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.918
_cell_length_b   11.918
_cell_length_c   3.607
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   443.737
_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
  Nb  Nb0  1  0.824  0.000  0.500  1.0
  Nb  Nb1  1  0.000  0.824  0.500  1.0
  Nb  Nb2  1  0.176  0.176  0.500  1.0
  Nb  Nb3  1  0.333  0.667  0.000  1.0
  Nb  Nb4  1  0.667  0.333  0.000  1.0
  Nb  Nb5  1  0.448  0.000  0.000  1.0
  Nb  Nb6  1  0.000  0.448  0.000  1.0
  Nb  Nb7  1  0.552  0.552  0.000  1.0
  Co  Co8  1  0.276  0.000  0.500  1.0
  Co  Co9  1  0.000  0.276  0.500  1.0
  Co  Co10  1  0.724  0.724  0.500  1.0
  Co  Co11  1  0.629  0.808  0.000  1.0
  Co  Co12  1  0.192  0.821  0.000  1.0
  Co  Co13  1  0.179  0.371  0.000  1.0
  Co  Co14  1  0.371  0.179  0.000  1.0
  Co  Co15  1  0.808  0.629  0.000  1.0
  Co  Co16  1  0.821  0.192  0.000  1.0
  Co  Co17  1  0.517  0.871  0.500  1.0
  Co  Co18  1  0.129  0.646  0.500  1.0
  Co  Co19  1  0.354  0.483  0.500  1.0
  Co  Co20  1  0.483  0.354  0.500  1.0
  Co  Co21  1  0.871  0.517  0.500  1.0
  Co  Co22  1  0.646  0.129  0.500  1.0
  Co  Co23  1  0.000  0.000  0.000  1.0
  P  P24  1  0.176  0.000  0.000  1.0
  P  P25  1  0.000  0.176  0.000  1.0
  P  P26  1  0.824  0.824  0.000  1.0
  P  P27  1  0.516  0.688  0.500  1.0
  P  P28  1  0.312  0.828  0.500  1.0
  P  P29  1  0.172  0.484  0.500  1.0
  P  P30  1  0.484  0.172  0.500  1.0
  P  P31  1  0.688  0.516  0.500  1.0
  P  P32  1  0.828  0.312  0.500  1.0
  P  P33  1  0.650  0.000  0.000  1.0
  P  P34  1  0.000  0.650  0.000  1.0
  P  P35  1  0.350  0.350  0.000  1.0
[/CIF]
.