The compound described by Eu2Ni12P7 crystallizes in the monoclinic Pm space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 18-coordinate geometry to one Ni(1), one Ni(2), one Ni(3), one Ni(4), one Ni(5), one Ni(6), two equivalent Ni(7), two equivalent Ni(8), two equivalent Ni(9), two equivalent P(4), two equivalent P(5), and two equivalent P(6) atoms. In the second Eu site, Eu(2) is bonded in a 15-coordinate geometry to one Ni(7), one Ni(8), one Ni(9), two equivalent Ni(1), two equivalent Ni(2), two equivalent Ni(3), two equivalent P(1), two equivalent P(2), and two equivalent P(3) atoms. There are twelve inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one Eu(1), two equivalent Eu(2), one P(1), one P(3), and two equivalent P(5) atoms to form distorted NiEu3P4 tetrahedra that share corners with two equivalent Ni(7)Eu3P4 tetrahedra, corners with two equivalent Ni(8)Eu3P4 tetrahedra, corners with two equivalent Ni(4)EuP4 tetrahedra, corners with two equivalent Ni(5)EuP4 tetrahedra, corners with three equivalent Ni(2)Eu3P4 tetrahedra, corners with three equivalent Ni(3)Eu3P4 tetrahedra,  an edgeedge with one Ni(6)EuP4 tetrahedra, edges with two equivalent Ni(1)Eu3P4 tetrahedra, edges with two equivalent Ni(7)Eu3P4 tetrahedra, edges with two equivalent Ni(8)Eu3P4 tetrahedra,  a faceface with one Ni(2)Eu3P4 tetrahedra,  a faceface with one Ni(3)Eu3P4 tetrahedra,  a faceface with one Ni(5)EuP4 tetrahedra, and faces with two equivalent Ni(9)Eu3P4 tetrahedra. In the second Ni site, Ni(2) is bonded to one Eu(1), two equivalent Eu(2), one P(1), one P(2), and two equivalent P(6) atoms to form distorted NiEu3P4 tetrahedra that share corners with two equivalent Ni(8)Eu3P4 tetrahedra, corners with two equivalent Ni(9)Eu3P4 tetrahedra, corners with two equivalent Ni(5)EuP4 tetrahedra, corners with two equivalent Ni(6)EuP4 tetrahedra, corners with three equivalent Ni(1)Eu3P4 tetrahedra, corners with three equivalent Ni(3)Eu3P4 tetrahedra,  an edgeedge with one Ni(4)EuP4 tetrahedra, edges with two equivalent Ni(2)Eu3P4 tetrahedra, edges with two equivalent Ni(8)Eu3P4 tetrahedra, edges with two equivalent Ni(9)Eu3P4 tetrahedra,  a faceface with one Ni(1)Eu3P4 tetrahedra,  a faceface with one Ni(3)Eu3P4 tetrahedra,  a faceface with one Ni(6)EuP4 tetrahedra, and faces with two equivalent Ni(7)Eu3P4 tetrahedra. In the third Ni site, Ni(3) is bonded to one Eu(1), two equivalent Eu(2), one P(2), one P(3), and two equivalent P(4) atoms to form distorted NiEu3P4 tetrahedra that share corners with two equivalent Ni(7)Eu3P4 tetrahedra, corners with two equivalent Ni(9)Eu3P4 tetrahedra, corners with two equivalent Ni(4)EuP4 tetrahedra, corners with two equivalent Ni(6)EuP4 tetrahedra, corners with three equivalent Ni(1)Eu3P4 tetrahedra, corners with three equivalent Ni(2)Eu3P4 tetrahedra,  an edgeedge with one Ni(5)EuP4 tetrahedra, edges with two equivalent Ni(3)Eu3P4 tetrahedra, edges with two equivalent Ni(7)Eu3P4 tetrahedra, edges with two equivalent Ni(9)Eu3P4 tetrahedra,  a faceface with one Ni(1)Eu3P4 tetrahedra,  a faceface with one Ni(2)Eu3P4 tetrahedra,  a faceface with one Ni(4)EuP4 tetrahedra, and faces with two equivalent Ni(8)Eu3P4 tetrahedra. In the fourth Ni site, Ni(4) is bonded to one Eu(1), one P(1), one P(7), and two equivalent P(4) atoms to form distorted NiEuP4 tetrahedra that share corners with two equivalent Ni(1)Eu3P4 tetrahedra, corners with two equivalent Ni(3)Eu3P4 tetrahedra, corners with two equivalent Ni(9)Eu3P4 tetrahedra, corners with two equivalent Ni(4)EuP4 tetrahedra, corners with two equivalent Ni(5)EuP4 tetrahedra, corners with two equivalent Ni(6)EuP4 tetrahedra,  an edgeedge with one Ni(2)Eu3P4 tetrahedra, edges with two equivalent Ni(8)Eu3P4 tetrahedra,  a faceface with one Ni(3)Eu3P4 tetrahedra, and faces with two equivalent Ni(7)Eu3P4 tetrahedra. In the fifth Ni site, Ni(5) is bonded to one Eu(1), one P(2), one P(7), and two equivalent P(5) atoms to form distorted NiEuP4 tetrahedra that share corners with two equivalent Ni(1)Eu3P4 tetrahedra, corners with two equivalent Ni(2)Eu3P4 tetrahedra, corners with two equivalent Ni(7)Eu3P4 tetrahedra, corners with two equivalent Ni(4)EuP4 tetrahedra, corners with two equivalent Ni(5)EuP4 tetrahedra, corners with two equivalent Ni(6)EuP4 tetrahedra,  an edgeedge with one Ni(3)Eu3P4 tetrahedra, edges with two equivalent Ni(9)Eu3P4 tetrahedra,  a faceface with one Ni(1)Eu3P4 tetrahedra, and faces with two equivalent Ni(8)Eu3P4 tetrahedra. In the sixth Ni site, Ni(6) is bonded to one Eu(1), one P(3), one P(7), and two equivalent P(6) atoms to form distorted NiEuP4 tetrahedra that share corners with two equivalent Ni(2)Eu3P4 tetrahedra, corners with two equivalent Ni(3)Eu3P4 tetrahedra, corners with two equivalent Ni(8)Eu3P4 tetrahedra, corners with two equivalent Ni(4)EuP4 tetrahedra, corners with two equivalent Ni(5)EuP4 tetrahedra, corners with two equivalent Ni(6)EuP4 tetrahedra,  an edgeedge with one Ni(1)Eu3P4 tetrahedra, edges with two equivalent Ni(7)Eu3P4 tetrahedra,  a faceface with one Ni(2)Eu3P4 tetrahedra, and faces with two equivalent Ni(9)Eu3P4 tetrahedra. In the seventh Ni site, Ni(7) is bonded to one Eu(2), two equivalent Eu(1), one P(4), one P(6), and two equivalent P(1) atoms to form distorted NiEu3P4 tetrahedra that share corners with two equivalent Ni(1)Eu3P4 tetrahedra, corners with two equivalent Ni(3)Eu3P4 tetrahedra, corners with two equivalent Ni(5)EuP4 tetrahedra, corners with three equivalent Ni(8)Eu3P4 tetrahedra, corners with three equivalent Ni(9)Eu3P4 tetrahedra, edges with two equivalent Ni(1)Eu3P4 tetrahedra, edges with two equivalent Ni(3)Eu3P4 tetrahedra, edges with two equivalent Ni(7)Eu3P4 tetrahedra, edges with two equivalent Ni(6)EuP4 tetrahedra,  a faceface with one Ni(8)Eu3P4 tetrahedra,  a faceface with one Ni(9)Eu3P4 tetrahedra, faces with two equivalent Ni(2)Eu3P4 tetrahedra, and faces with two equivalent Ni(4)EuP4 tetrahedra. In the eighth Ni site, Ni(8) is bonded to one Eu(2), two equivalent Eu(1), one P(4), one P(5), and two equivalent P(2) atoms to form distorted NiEu3P4 tetrahedra that share corners with two equivalent Ni(1)Eu3P4 tetrahedra, corners with two equivalent Ni(2)Eu3P4 tetrahedra, corners with two equivalent Ni(6)EuP4 tetrahedra, corners with three equivalent Ni(7)Eu3P4 tetrahedra, corners with three equivalent Ni(9)Eu3P4 tetrahedra, edges with two equivalent Ni(1)Eu3P4 tetrahedra, edges with two equivalent Ni(2)Eu3P4 tetrahedra, edges with two equivalent Ni(8)Eu3P4 tetrahedra, edges with two equivalent Ni(4)EuP4 tetrahedra,  a faceface with one Ni(7)Eu3P4 tetrahedra,  a faceface with one Ni(9)Eu3P4 tetrahedra, faces with two equivalent Ni(3)Eu3P4 tetrahedra, and faces with two equivalent Ni(5)EuP4 tetrahedra. In the ninth Ni site, Ni(9) is bonded to one Eu(2), two equivalent Eu(1), one P(5), one P(6), and two equivalent P(3) atoms to form distorted NiEu3P4 tetrahedra that share corners with two equivalent Ni(2)Eu3P4 tetrahedra, corners with two equivalent Ni(3)Eu3P4 tetrahedra, corners with two equivalent Ni(4)EuP4 tetrahedra, corners with three equivalent Ni(7)Eu3P4 tetrahedra, corners with three equivalent Ni(8)Eu3P4 tetrahedra, edges with two equivalent Ni(2)Eu3P4 tetrahedra, edges with two equivalent Ni(3)Eu3P4 tetrahedra, edges with two equivalent Ni(9)Eu3P4 tetrahedra, edges with two equivalent Ni(5)EuP4 tetrahedra,  a faceface with one Ni(7)Eu3P4 tetrahedra,  a faceface with one Ni(8)Eu3P4 tetrahedra, faces with two equivalent Ni(1)Eu3P4 tetrahedra, and faces with two equivalent Ni(6)EuP4 tetrahedra. In the tenth Ni site, Ni(10) is bonded in a 5-coordinate geometry to one P(5), two equivalent P(1), and two equivalent P(7) atoms. In the eleventh Ni site, Ni(11) is bonded in a 5-coordinate geometry to one P(6), two equivalent P(2), and two equivalent P(7) atoms. In the twelfth Ni site, Ni(12) is bonded in a 5-coordinate geometry to one P(4), two equivalent P(3), and two equivalent P(7) atoms. There are seven inequivalent P sites. In the first P site, P(1) is bonded in a 9-coordinate geometry to two equivalent Eu(2), one Ni(1), one Ni(2), one Ni(4), two equivalent Ni(10), and two equivalent Ni(7) atoms. In the second P site, P(2) is bonded in a 9-coordinate geometry to two equivalent Eu(2), one Ni(2), one Ni(3), one Ni(5), two equivalent Ni(11), and two equivalent Ni(8) atoms. In the third P site, P(3) is bonded in a 9-coordinate geometry to two equivalent Eu(2), one Ni(1), one Ni(3), one Ni(6), two equivalent Ni(12), and two equivalent Ni(9) atoms. In the fourth P site, P(4) is bonded in a 9-coordinate geometry to two equivalent Eu(1), one Ni(12), one Ni(7), one Ni(8), two equivalent Ni(3), and two equivalent Ni(4) atoms. In the fifth P site, P(5) is bonded in a 9-coordinate geometry to two equivalent Eu(1), one Ni(10), one Ni(8), one Ni(9), two equivalent Ni(1), and two equivalent Ni(5) atoms. In the sixth P site, P(6) is bonded in a 9-coordinate geometry to two equivalent Eu(1), one Ni(11), one Ni(7), one Ni(9), two equivalent Ni(2), and two equivalent Ni(6) atoms. In the seventh P site, P(7) is bonded in a 9-coordinate geometry to one Ni(4), one Ni(5), one Ni(6), two equivalent Ni(10), two equivalent Ni(11), and two equivalent Ni(12) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Eu2Ni12P7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.706
_cell_length_b   9.107
_cell_length_c   9.130
_cell_angle_alpha   120.034
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   266.755
_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
  Eu  Eu0  1  0.000  0.667  0.333  1.0
  Eu  Eu1  1  0.500  0.333  0.667  1.0
  Ni  Ni2  1  0.000  0.377  0.943  1.0
  Ni  Ni3  1  0.000  0.057  0.433  1.0
  Ni  Ni4  1  0.000  0.567  0.623  1.0
  Ni  Ni5  1  0.000  0.877  0.728  1.0
  Ni  Ni6  1  0.000  0.273  0.149  1.0
  Ni  Ni7  1  0.000  0.851  0.123  1.0
  Ni  Ni8  1  0.500  0.952  0.575  1.0
  Ni  Ni9  1  0.500  0.425  0.377  1.0
  Ni  Ni10  1  0.500  0.623  0.048  1.0
  Ni  Ni11  1  0.500  0.120  0.906  1.0
  Ni  Ni12  1  0.500  0.094  0.214  1.0
  Ni  Ni13  1  0.500  0.786  0.880  1.0
  P  P14  1  0.000  0.110  0.706  1.0
  P  P15  1  0.000  0.294  0.404  1.0
  P  P16  1  0.000  0.596  0.890  1.0
  P  P17  1  0.500  0.703  0.598  1.0
  P  P18  1  0.500  0.402  0.105  1.0
  P  P19  1  0.500  0.895  0.297  1.0
  P  P20  1  0.000  0.000  0.000  1.0
[/CIF]
.
The compound described by Eu2Ni12P7 crystallizes in the monoclinic Pm space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 18-coordinate geometry to one Ni(1), one Ni(2), one Ni(3), one Ni(4), one Ni(5), one Ni(6), two equivalent Ni(7), two equivalent Ni(8), two equivalent Ni(9), two equivalent P(4), two equivalent P(5), and two equivalent P(6) atoms. In the second Eu site, Eu(2) is bonded in a 15-coordinate geometry to one Ni(7), one Ni(8), one Ni(9), two equivalent Ni(1), two equivalent Ni(2), two equivalent Ni(3), two equivalent P(1), two equivalent P(2), and two equivalent P(3) atoms. There are twelve inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one Eu(1), two equivalent Eu(2), one P(1), one P(3), and two equivalent P(5) atoms to form distorted NiEu3P4 tetrahedra that share corners with two equivalent Ni(7)Eu3P4 tetrahedra, corners with two equivalent Ni(8)Eu3P4 tetrahedra, corners with two equivalent Ni(4)EuP4 tetrahedra, corners with two equivalent Ni(5)EuP4 tetrahedra, corners with three equivalent Ni(2)Eu3P4 tetrahedra, corners with three equivalent Ni(3)Eu3P4 tetrahedra,  an edgeedge with one Ni(6)EuP4 tetrahedra, edges with two equivalent Ni(1)Eu3P4 tetrahedra, edges with two equivalent Ni(7)Eu3P4 tetrahedra, edges with two equivalent Ni(8)Eu3P4 tetrahedra,  a faceface with one Ni(2)Eu3P4 tetrahedra,  a faceface with one Ni(3)Eu3P4 tetrahedra,  a faceface with one Ni(5)EuP4 tetrahedra, and faces with two equivalent Ni(9)Eu3P4 tetrahedra. In the second Ni site, Ni(2) is bonded to one Eu(1), two equivalent Eu(2), one P(1), one P(2), and two equivalent P(6) atoms to form distorted NiEu3P4 tetrahedra that share corners with two equivalent Ni(8)Eu3P4 tetrahedra, corners with two equivalent Ni(9)Eu3P4 tetrahedra, corners with two equivalent Ni(5)EuP4 tetrahedra, corners with two equivalent Ni(6)EuP4 tetrahedra, corners with three equivalent Ni(1)Eu3P4 tetrahedra, corners with three equivalent Ni(3)Eu3P4 tetrahedra,  an edgeedge with one Ni(4)EuP4 tetrahedra, edges with two equivalent Ni(2)Eu3P4 tetrahedra, edges with two equivalent Ni(8)Eu3P4 tetrahedra, edges with two equivalent Ni(9)Eu3P4 tetrahedra,  a faceface with one Ni(1)Eu3P4 tetrahedra,  a faceface with one Ni(3)Eu3P4 tetrahedra,  a faceface with one Ni(6)EuP4 tetrahedra, and faces with two equivalent Ni(7)Eu3P4 tetrahedra. In the third Ni site, Ni(3) is bonded to one Eu(1), two equivalent Eu(2), one P(2), one P(3), and two equivalent P(4) atoms to form distorted NiEu3P4 tetrahedra that share corners with two equivalent Ni(7)Eu3P4 tetrahedra, corners with two equivalent Ni(9)Eu3P4 tetrahedra, corners with two equivalent Ni(4)EuP4 tetrahedra, corners with two equivalent Ni(6)EuP4 tetrahedra, corners with three equivalent Ni(1)Eu3P4 tetrahedra, corners with three equivalent Ni(2)Eu3P4 tetrahedra,  an edgeedge with one Ni(5)EuP4 tetrahedra, edges with two equivalent Ni(3)Eu3P4 tetrahedra, edges with two equivalent Ni(7)Eu3P4 tetrahedra, edges with two equivalent Ni(9)Eu3P4 tetrahedra,  a faceface with one Ni(1)Eu3P4 tetrahedra,  a faceface with one Ni(2)Eu3P4 tetrahedra,  a faceface with one Ni(4)EuP4 tetrahedra, and faces with two equivalent Ni(8)Eu3P4 tetrahedra. In the fourth Ni site, Ni(4) is bonded to one Eu(1), one P(1), one P(7), and two equivalent P(4) atoms to form distorted NiEuP4 tetrahedra that share corners with two equivalent Ni(1)Eu3P4 tetrahedra, corners with two equivalent Ni(3)Eu3P4 tetrahedra, corners with two equivalent Ni(9)Eu3P4 tetrahedra, corners with two equivalent Ni(4)EuP4 tetrahedra, corners with two equivalent Ni(5)EuP4 tetrahedra, corners with two equivalent Ni(6)EuP4 tetrahedra,  an edgeedge with one Ni(2)Eu3P4 tetrahedra, edges with two equivalent Ni(8)Eu3P4 tetrahedra,  a faceface with one Ni(3)Eu3P4 tetrahedra, and faces with two equivalent Ni(7)Eu3P4 tetrahedra. In the fifth Ni site, Ni(5) is bonded to one Eu(1), one P(2), one P(7), and two equivalent P(5) atoms to form distorted NiEuP4 tetrahedra that share corners with two equivalent Ni(1)Eu3P4 tetrahedra, corners with two equivalent Ni(2)Eu3P4 tetrahedra, corners with two equivalent Ni(7)Eu3P4 tetrahedra, corners with two equivalent Ni(4)EuP4 tetrahedra, corners with two equivalent Ni(5)EuP4 tetrahedra, corners with two equivalent Ni(6)EuP4 tetrahedra,  an edgeedge with one Ni(3)Eu3P4 tetrahedra, edges with two equivalent Ni(9)Eu3P4 tetrahedra,  a faceface with one Ni(1)Eu3P4 tetrahedra, and faces with two equivalent Ni(8)Eu3P4 tetrahedra. In the sixth Ni site, Ni(6) is bonded to one Eu(1), one P(3), one P(7), and two equivalent P(6) atoms to form distorted NiEuP4 tetrahedra that share corners with two equivalent Ni(2)Eu3P4 tetrahedra, corners with two equivalent Ni(3)Eu3P4 tetrahedra, corners with two equivalent Ni(8)Eu3P4 tetrahedra, corners with two equivalent Ni(4)EuP4 tetrahedra, corners with two equivalent Ni(5)EuP4 tetrahedra, corners with two equivalent Ni(6)EuP4 tetrahedra,  an edgeedge with one Ni(1)Eu3P4 tetrahedra, edges with two equivalent Ni(7)Eu3P4 tetrahedra,  a faceface with one Ni(2)Eu3P4 tetrahedra, and faces with two equivalent Ni(9)Eu3P4 tetrahedra. In the seventh Ni site, Ni(7) is bonded to one Eu(2), two equivalent Eu(1), one P(4), one P(6), and two equivalent P(1) atoms to form distorted NiEu3P4 tetrahedra that share corners with two equivalent Ni(1)Eu3P4 tetrahedra, corners with two equivalent Ni(3)Eu3P4 tetrahedra, corners with two equivalent Ni(5)EuP4 tetrahedra, corners with three equivalent Ni(8)Eu3P4 tetrahedra, corners with three equivalent Ni(9)Eu3P4 tetrahedra, edges with two equivalent Ni(1)Eu3P4 tetrahedra, edges with two equivalent Ni(3)Eu3P4 tetrahedra, edges with two equivalent Ni(7)Eu3P4 tetrahedra, edges with two equivalent Ni(6)EuP4 tetrahedra,  a faceface with one Ni(8)Eu3P4 tetrahedra,  a faceface with one Ni(9)Eu3P4 tetrahedra, faces with two equivalent Ni(2)Eu3P4 tetrahedra, and faces with two equivalent Ni(4)EuP4 tetrahedra. In the eighth Ni site, Ni(8) is bonded to one Eu(2), two equivalent Eu(1), one P(4), one P(5), and two equivalent P(2) atoms to form distorted NiEu3P4 tetrahedra that share corners with two equivalent Ni(1)Eu3P4 tetrahedra, corners with two equivalent Ni(2)Eu3P4 tetrahedra, corners with two equivalent Ni(6)EuP4 tetrahedra, corners with three equivalent Ni(7)Eu3P4 tetrahedra, corners with three equivalent Ni(9)Eu3P4 tetrahedra, edges with two equivalent Ni(1)Eu3P4 tetrahedra, edges with two equivalent Ni(2)Eu3P4 tetrahedra, edges with two equivalent Ni(8)Eu3P4 tetrahedra, edges with two equivalent Ni(4)EuP4 tetrahedra,  a faceface with one Ni(7)Eu3P4 tetrahedra,  a faceface with one Ni(9)Eu3P4 tetrahedra, faces with two equivalent Ni(3)Eu3P4 tetrahedra, and faces with two equivalent Ni(5)EuP4 tetrahedra. In the ninth Ni site, Ni(9) is bonded to one Eu(2), two equivalent Eu(1), one P(5), one P(6), and two equivalent P(3) atoms to form distorted NiEu3P4 tetrahedra that share corners with two equivalent Ni(2)Eu3P4 tetrahedra, corners with two equivalent Ni(3)Eu3P4 tetrahedra, corners with two equivalent Ni(4)EuP4 tetrahedra, corners with three equivalent Ni(7)Eu3P4 tetrahedra, corners with three equivalent Ni(8)Eu3P4 tetrahedra, edges with two equivalent Ni(2)Eu3P4 tetrahedra, edges with two equivalent Ni(3)Eu3P4 tetrahedra, edges with two equivalent Ni(9)Eu3P4 tetrahedra, edges with two equivalent Ni(5)EuP4 tetrahedra,  a faceface with one Ni(7)Eu3P4 tetrahedra,  a faceface with one Ni(8)Eu3P4 tetrahedra, faces with two equivalent Ni(1)Eu3P4 tetrahedra, and faces with two equivalent Ni(6)EuP4 tetrahedra. In the tenth Ni site, Ni(10) is bonded in a 5-coordinate geometry to one P(5), two equivalent P(1), and two equivalent P(7) atoms. In the eleventh Ni site, Ni(11) is bonded in a 5-coordinate geometry to one P(6), two equivalent P(2), and two equivalent P(7) atoms. In the twelfth Ni site, Ni(12) is bonded in a 5-coordinate geometry to one P(4), two equivalent P(3), and two equivalent P(7) atoms. There are seven inequivalent P sites. In the first P site, P(1) is bonded in a 9-coordinate geometry to two equivalent Eu(2), one Ni(1), one Ni(2), one Ni(4), two equivalent Ni(10), and two equivalent Ni(7) atoms. In the second P site, P(2) is bonded in a 9-coordinate geometry to two equivalent Eu(2), one Ni(2), one Ni(3), one Ni(5), two equivalent Ni(11), and two equivalent Ni(8) atoms. In the third P site, P(3) is bonded in a 9-coordinate geometry to two equivalent Eu(2), one Ni(1), one Ni(3), one Ni(6), two equivalent Ni(12), and two equivalent Ni(9) atoms. In the fourth P site, P(4) is bonded in a 9-coordinate geometry to two equivalent Eu(1), one Ni(12), one Ni(7), one Ni(8), two equivalent Ni(3), and two equivalent Ni(4) atoms. In the fifth P site, P(5) is bonded in a 9-coordinate geometry to two equivalent Eu(1), one Ni(10), one Ni(8), one Ni(9), two equivalent Ni(1), and two equivalent Ni(5) atoms. In the sixth P site, P(6) is bonded in a 9-coordinate geometry to two equivalent Eu(1), one Ni(11), one Ni(7), one Ni(9), two equivalent Ni(2), and two equivalent Ni(6) atoms. In the seventh P site, P(7) is bonded in a 9-coordinate geometry to one Ni(4), one Ni(5), one Ni(6), two equivalent Ni(10), two equivalent Ni(11), and two equivalent Ni(12) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Eu2Ni12P7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.706
_cell_length_b   9.107
_cell_length_c   9.130
_cell_angle_alpha   120.034
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   266.755
_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
  Eu  Eu0  1  0.000  0.667  0.333  1.0
  Eu  Eu1  1  0.500  0.333  0.667  1.0
  Ni  Ni2  1  0.000  0.377  0.943  1.0
  Ni  Ni3  1  0.000  0.057  0.433  1.0
  Ni  Ni4  1  0.000  0.567  0.623  1.0
  Ni  Ni5  1  0.000  0.877  0.728  1.0
  Ni  Ni6  1  0.000  0.273  0.149  1.0
  Ni  Ni7  1  0.000  0.851  0.123  1.0
  Ni  Ni8  1  0.500  0.952  0.575  1.0
  Ni  Ni9  1  0.500  0.425  0.377  1.0
  Ni  Ni10  1  0.500  0.623  0.048  1.0
  Ni  Ni11  1  0.500  0.120  0.906  1.0
  Ni  Ni12  1  0.500  0.094  0.214  1.0
  Ni  Ni13  1  0.500  0.786  0.880  1.0
  P  P14  1  0.000  0.110  0.706  1.0
  P  P15  1  0.000  0.294  0.404  1.0
  P  P16  1  0.000  0.596  0.890  1.0
  P  P17  1  0.500  0.703  0.598  1.0
  P  P18  1  0.500  0.402  0.105  1.0
  P  P19  1  0.500  0.895  0.297  1.0
  P  P20  1  0.000  0.000  0.000  1.0
[/CIF]
.