The structure described by NaNdF4 crystallizes in the triclinic P1 space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a distorted octahedral geometry to one F(1), one F(11), one F(4), one F(5), one F(7), and one F(9) atom. In the second Na site, Na(2) is bonded in a distorted octahedral geometry to one F(10), one F(12), one F(2), one F(3), one F(6), and one F(8) atom. In the third Na site, Na(3) is bonded in a 9-coordinate geometry to one F(1), one F(12), one F(2), one F(3), one F(4), one F(5), one F(6), one F(7), and one F(9) atom. There are three inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 9-coordinate geometry to one F(10), one F(11), one F(12), one F(2), one F(4), one F(6), one F(7), one F(8), and one F(9) atom. In the second Nd site, Nd(2) is bonded in a 9-coordinate geometry to one F(1), one F(10), one F(11), one F(12), one F(3), one F(5), one F(7), one F(8), and one F(9) atom. In the third Nd site, Nd(3) is bonded in a 9-coordinate geometry to one F(1), one F(10), one F(11), one F(2), one F(3), one F(4), one F(5), one F(6), and one F(8) atom. There are twelve inequivalent F sites. In the first F site, F(1) is bonded to one Na(1), one Na(3), one Nd(2), and one Nd(3) atom to form FNa2Nd2 tetrahedra that share  a cornercorner with one F(3)Na2Nd2 tetrahedra,  a cornercorner with one F(7)Na2Nd2 tetrahedra,  a cornercorner with one F(9)Na2Nd2 tetrahedra,  a cornercorner with one F(11)NaNd3 tetrahedra, corners with two equivalent F(12)Na2Nd2 tetrahedra, corners with two equivalent F(2)Na2Nd2 tetrahedra, corners with two equivalent F(8)NaNd3 tetrahedra, corners with three equivalent F(4)Na2Nd2 tetrahedra, corners with four equivalent F(5)Na2Nd2 tetrahedra,  an edgeedge with one F(3)Na2Nd2 tetrahedra,  an edgeedge with one F(6)Na2Nd2 tetrahedra,  an edgeedge with one F(7)Na2Nd2 tetrahedra,  an edgeedge with one F(9)Na2Nd2 tetrahedra,  an edgeedge with one F(10)NaNd3 tetrahedra, and  an edgeedge with one F(11)NaNd3 tetrahedra. In the second F site, F(2) is bonded to one Na(2), one Na(3), one Nd(1), and one Nd(3) atom to form distorted FNa2Nd2 tetrahedra that share  a cornercorner with one F(12)Na2Nd2 tetrahedra,  a cornercorner with one F(4)Na2Nd2 tetrahedra,  a cornercorner with one F(10)NaNd3 tetrahedra,  a cornercorner with one F(8)NaNd3 tetrahedra, corners with two equivalent F(1)Na2Nd2 tetrahedra, corners with two equivalent F(7)Na2Nd2 tetrahedra, corners with two equivalent F(11)NaNd3 tetrahedra, corners with three equivalent F(3)Na2Nd2 tetrahedra, corners with four equivalent F(6)Na2Nd2 tetrahedra,  an edgeedge with one F(12)Na2Nd2 tetrahedra,  an edgeedge with one F(4)Na2Nd2 tetrahedra,  an edgeedge with one F(5)Na2Nd2 tetrahedra,  an edgeedge with one F(9)Na2Nd2 tetrahedra,  an edgeedge with one F(10)NaNd3 tetrahedra, and  an edgeedge with one F(8)NaNd3 tetrahedra. In the third F site, F(3) is bonded to one Na(2), one Na(3), one Nd(2), and one Nd(3) atom to form FNa2Nd2 tetrahedra that share  a cornercorner with one F(1)Na2Nd2 tetrahedra,  a cornercorner with one F(12)Na2Nd2 tetrahedra,  a cornercorner with one F(6)Na2Nd2 tetrahedra,  a cornercorner with one F(10)NaNd3 tetrahedra,  a cornercorner with one F(8)NaNd3 tetrahedra, corners with two equivalent F(4)Na2Nd2 tetrahedra, corners with two equivalent F(7)Na2Nd2 tetrahedra, corners with two equivalent F(9)Na2Nd2 tetrahedra, corners with three equivalent F(2)Na2Nd2 tetrahedra, corners with three equivalent F(5)Na2Nd2 tetrahedra,  an edgeedge with one F(1)Na2Nd2 tetrahedra,  an edgeedge with one F(12)Na2Nd2 tetrahedra,  an edgeedge with one F(6)Na2Nd2 tetrahedra,  an edgeedge with one F(10)NaNd3 tetrahedra,  an edgeedge with one F(11)NaNd3 tetrahedra, and  an edgeedge with one F(8)NaNd3 tetrahedra. In the fourth F site, F(4) is bonded to one Na(1), one Na(3), one Nd(1), and one Nd(3) atom to form distorted FNa2Nd2 tetrahedra that share  a cornercorner with one F(2)Na2Nd2 tetrahedra,  a cornercorner with one F(5)Na2Nd2 tetrahedra,  a cornercorner with one F(7)Na2Nd2 tetrahedra,  a cornercorner with one F(9)Na2Nd2 tetrahedra,  a cornercorner with one F(11)NaNd3 tetrahedra, corners with two equivalent F(3)Na2Nd2 tetrahedra, corners with two equivalent F(10)NaNd3 tetrahedra, corners with two equivalent F(8)NaNd3 tetrahedra, corners with three equivalent F(1)Na2Nd2 tetrahedra, corners with three equivalent F(6)Na2Nd2 tetrahedra,  an edgeedge with one F(12)Na2Nd2 tetrahedra,  an edgeedge with one F(2)Na2Nd2 tetrahedra,  an edgeedge with one F(5)Na2Nd2 tetrahedra,  an edgeedge with one F(7)Na2Nd2 tetrahedra,  an edgeedge with one F(9)Na2Nd2 tetrahedra, and  an edgeedge with one F(11)NaNd3 tetrahedra. In the fifth F site, F(5) is bonded to one Na(1), one Na(3), one Nd(2), and one Nd(3) atom to form distorted FNa2Nd2 tetrahedra that share  a cornercorner with one F(4)Na2Nd2 tetrahedra,  a cornercorner with one F(7)Na2Nd2 tetrahedra,  a cornercorner with one F(9)Na2Nd2 tetrahedra,  a cornercorner with one F(11)NaNd3 tetrahedra, corners with two equivalent F(12)Na2Nd2 tetrahedra, corners with two equivalent F(6)Na2Nd2 tetrahedra, corners with two equivalent F(10)NaNd3 tetrahedra, corners with three equivalent F(3)Na2Nd2 tetrahedra, corners with four equivalent F(1)Na2Nd2 tetrahedra,  an edgeedge with one F(2)Na2Nd2 tetrahedra,  an edgeedge with one F(4)Na2Nd2 tetrahedra,  an edgeedge with one F(7)Na2Nd2 tetrahedra,  an edgeedge with one F(9)Na2Nd2 tetrahedra,  an edgeedge with one F(11)NaNd3 tetrahedra, and  an edgeedge with one F(8)NaNd3 tetrahedra. In the sixth F site, F(6) is bonded to one Na(2), one Na(3), one Nd(1), and one Nd(3) atom to form FNa2Nd2 tetrahedra that share  a cornercorner with one F(12)Na2Nd2 tetrahedra,  a cornercorner with one F(3)Na2Nd2 tetrahedra,  a cornercorner with one F(10)NaNd3 tetrahedra,  a cornercorner with one F(8)NaNd3 tetrahedra, corners with two equivalent F(5)Na2Nd2 tetrahedra, corners with two equivalent F(9)Na2Nd2 tetrahedra, corners with two equivalent F(11)NaNd3 tetrahedra, corners with three equivalent F(4)Na2Nd2 tetrahedra, corners with four equivalent F(2)Na2Nd2 tetrahedra,  an edgeedge with one F(1)Na2Nd2 tetrahedra,  an edgeedge with one F(12)Na2Nd2 tetrahedra,  an edgeedge with one F(3)Na2Nd2 tetrahedra,  an edgeedge with one F(7)Na2Nd2 tetrahedra,  an edgeedge with one F(10)NaNd3 tetrahedra, and  an edgeedge with one F(8)NaNd3 tetrahedra. In the seventh F site, F(7) is bonded to one Na(1), one Na(3), one Nd(1), and one Nd(2) atom to form FNa2Nd2 tetrahedra that share  a cornercorner with one F(1)Na2Nd2 tetrahedra,  a cornercorner with one F(4)Na2Nd2 tetrahedra,  a cornercorner with one F(5)Na2Nd2 tetrahedra,  a cornercorner with one F(11)NaNd3 tetrahedra, corners with two equivalent F(2)Na2Nd2 tetrahedra, corners with two equivalent F(3)Na2Nd2 tetrahedra, corners with two equivalent F(8)NaNd3 tetrahedra, corners with three equivalent F(12)Na2Nd2 tetrahedra, corners with four equivalent F(9)Na2Nd2 tetrahedra,  an edgeedge with one F(1)Na2Nd2 tetrahedra,  an edgeedge with one F(4)Na2Nd2 tetrahedra,  an edgeedge with one F(5)Na2Nd2 tetrahedra,  an edgeedge with one F(6)Na2Nd2 tetrahedra,  an edgeedge with one F(10)NaNd3 tetrahedra, and  an edgeedge with one F(11)NaNd3 tetrahedra. In the eighth F site, F(8) is bonded to one Na(2), one Nd(1), one Nd(2), and one Nd(3) atom to form FNaNd3 tetrahedra that share  a cornercorner with one F(12)Na2Nd2 tetrahedra,  a cornercorner with one F(2)Na2Nd2 tetrahedra,  a cornercorner with one F(3)Na2Nd2 tetrahedra,  a cornercorner with one F(6)Na2Nd2 tetrahedra, corners with two equivalent F(1)Na2Nd2 tetrahedra, corners with two equivalent F(4)Na2Nd2 tetrahedra, corners with two equivalent F(7)Na2Nd2 tetrahedra, corners with three equivalent F(11)NaNd3 tetrahedra, corners with four equivalent F(10)NaNd3 tetrahedra,  an edgeedge with one F(12)Na2Nd2 tetrahedra,  an edgeedge with one F(2)Na2Nd2 tetrahedra,  an edgeedge with one F(3)Na2Nd2 tetrahedra,  an edgeedge with one F(5)Na2Nd2 tetrahedra,  an edgeedge with one F(6)Na2Nd2 tetrahedra, and  an edgeedge with one F(9)Na2Nd2 tetrahedra. In the ninth F site, F(9) is bonded to one Na(1), one Na(3), one Nd(1), and one Nd(2) atom to form FNa2Nd2 tetrahedra that share  a cornercorner with one F(1)Na2Nd2 tetrahedra,  a cornercorner with one F(12)Na2Nd2 tetrahedra,  a cornercorner with one F(4)Na2Nd2 tetrahedra,  a cornercorner with one F(5)Na2Nd2 tetrahedra, corners with two equivalent F(3)Na2Nd2 tetrahedra, corners with two equivalent F(6)Na2Nd2 tetrahedra, corners with two equivalent F(10)NaNd3 tetrahedra, corners with three equivalent F(11)NaNd3 tetrahedra, corners with four equivalent F(7)Na2Nd2 tetrahedra,  an edgeedge with one F(1)Na2Nd2 tetrahedra,  an edgeedge with one F(12)Na2Nd2 tetrahedra,  an edgeedge with one F(2)Na2Nd2 tetrahedra,  an edgeedge with one F(4)Na2Nd2 tetrahedra,  an edgeedge with one F(5)Na2Nd2 tetrahedra, and  an edgeedge with one F(8)NaNd3 tetrahedra. In the tenth F site, F(10) is bonded to one Na(2), one Nd(1), one Nd(2), and one Nd(3) atom to form FNaNd3 tetrahedra that share  a cornercorner with one F(2)Na2Nd2 tetrahedra,  a cornercorner with one F(3)Na2Nd2 tetrahedra,  a cornercorner with one F(6)Na2Nd2 tetrahedra,  a cornercorner with one F(11)NaNd3 tetrahedra, corners with two equivalent F(4)Na2Nd2 tetrahedra, corners with two equivalent F(5)Na2Nd2 tetrahedra, corners with two equivalent F(9)Na2Nd2 tetrahedra, corners with three equivalent F(12)Na2Nd2 tetrahedra, corners with four equivalent F(8)NaNd3 tetrahedra,  an edgeedge with one F(1)Na2Nd2 tetrahedra,  an edgeedge with one F(2)Na2Nd2 tetrahedra,  an edgeedge with one F(3)Na2Nd2 tetrahedra,  an edgeedge with one F(6)Na2Nd2 tetrahedra,  an edgeedge with one F(7)Na2Nd2 tetrahedra, and  an edgeedge with one F(11)NaNd3 tetrahedra. In the eleventh F site, F(11) is bonded to one Na(1), one Nd(1), one Nd(2), and one Nd(3) atom to form FNaNd3 tetrahedra that share  a cornercorner with one F(1)Na2Nd2 tetrahedra,  a cornercorner with one F(4)Na2Nd2 tetrahedra,  a cornercorner with one F(5)Na2Nd2 tetrahedra,  a cornercorner with one F(7)Na2Nd2 tetrahedra,  a cornercorner with one F(10)NaNd3 tetrahedra, corners with two equivalent F(12)Na2Nd2 tetrahedra, corners with two equivalent F(2)Na2Nd2 tetrahedra, corners with two equivalent F(6)Na2Nd2 tetrahedra, corners with three equivalent F(9)Na2Nd2 tetrahedra, corners with three equivalent F(8)NaNd3 tetrahedra,  an edgeedge with one F(1)Na2Nd2 tetrahedra,  an edgeedge with one F(3)Na2Nd2 tetrahedra,  an edgeedge with one F(4)Na2Nd2 tetrahedra,  an edgeedge with one F(5)Na2Nd2 tetrahedra,  an edgeedge with one F(7)Na2Nd2 tetrahedra, and  an edgeedge with one F(10)NaNd3 tetrahedra. In the twelfth F site, F(12) is bonded to one Na(2), one Na(3), one Nd(1), and one Nd(2) atom to form FNa2Nd2 tetrahedra that share  a cornercorner with one F(2)Na2Nd2 tetrahedra,  a cornercorner with one F(3)Na2Nd2 tetrahedra,  a cornercorner with one F(6)Na2Nd2 tetrahedra,  a cornercorner with one F(9)Na2Nd2 tetrahedra,  a cornercorner with one F(8)NaNd3 tetrahedra, corners with two equivalent F(1)Na2Nd2 tetrahedra, corners with two equivalent F(5)Na2Nd2 tetrahedra, corners with two equivalent F(11)NaNd3 tetrahedra, corners with three equivalent F(7)Na2Nd2 tetrahedra, corners with three equivalent F(10)NaNd3 tetrahedra,  an edgeedge with one F(2)Na2Nd2 tetrahedra,  an edgeedge with one F(3)Na2Nd2 tetrahedra,  an edgeedge with one F(4)Na2Nd2 tetrahedra,  an edgeedge with one F(6)Na2Nd2 tetrahedra,  an edgeedge with one F(9)Na2Nd2 tetrahedra, and  an edgeedge with one F(8)NaNd3 tetrahedra. is represented by the CIF file [CIF]
data_NaNdF4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.065
_cell_length_b   7.081
_cell_length_c   7.090
_cell_angle_alpha   63.011
_cell_angle_beta   64.765
_cell_angle_gamma   64.773
_symmetry_Int_Tables_number   1
_cell_volume   234.979
_cell_formula_units_Z   3
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
  Na  Na0  1  0.666  0.483  0.167  1.0
  Na  Na1  1  0.663  0.003  0.683  1.0
  Na  Na2  1  0.330  0.426  0.909  1.0
  Nd  Nd3  1  0.003  0.999  0.998  1.0
  Nd  Nd4  1  0.997  0.498  0.505  1.0
  Nd  Nd5  1  0.336  0.921  0.409  1.0
  F  F6  1  0.369  0.541  0.500  1.0
  F  F7  1  0.371  0.007  0.030  1.0
  F  F8  1  0.590  0.709  0.662  1.0
  F  F9  1  0.594  0.169  0.198  1.0
  F  F10  1  0.037  0.279  0.313  1.0
  F  F11  1  0.044  0.818  0.770  1.0
  F  F12  1  0.259  0.624  0.129  1.0
  F  F13  1  0.278  0.129  0.626  1.0
  F  F14  1  0.983  0.381  0.884  1.0
  F  F15  1  0.974  0.887  0.385  1.0
  F  F16  1  0.755  0.733  0.232  1.0
  F  F17  1  0.752  0.243  0.746  1.0
[/CIF]
.
The structure described by NaNdF4 crystallizes in the triclinic P1 space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a distorted octahedral geometry to one F(1), one F(11), one F(4), one F(5), one F(7), and one F(9) atom. In the second Na site, Na(2) is bonded in a distorted octahedral geometry to one F(10), one F(12), one F(2), one F(3), one F(6), and one F(8) atom. In the third Na site, Na(3) is bonded in a 9-coordinate geometry to one F(1), one F(12), one F(2), one F(3), one F(4), one F(5), one F(6), one F(7), and one F(9) atom. There are three inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 9-coordinate geometry to one F(10), one F(11), one F(12), one F(2), one F(4), one F(6), one F(7), one F(8), and one F(9) atom. In the second Nd site, Nd(2) is bonded in a 9-coordinate geometry to one F(1), one F(10), one F(11), one F(12), one F(3), one F(5), one F(7), one F(8), and one F(9) atom. In the third Nd site, Nd(3) is bonded in a 9-coordinate geometry to one F(1), one F(10), one F(11), one F(2), one F(3), one F(4), one F(5), one F(6), and one F(8) atom. There are twelve inequivalent F sites. In the first F site, F(1) is bonded to one Na(1), one Na(3), one Nd(2), and one Nd(3) atom to form FNa2Nd2 tetrahedra that share  a cornercorner with one F(3)Na2Nd2 tetrahedra,  a cornercorner with one F(7)Na2Nd2 tetrahedra,  a cornercorner with one F(9)Na2Nd2 tetrahedra,  a cornercorner with one F(11)NaNd3 tetrahedra, corners with two equivalent F(12)Na2Nd2 tetrahedra, corners with two equivalent F(2)Na2Nd2 tetrahedra, corners with two equivalent F(8)NaNd3 tetrahedra, corners with three equivalent F(4)Na2Nd2 tetrahedra, corners with four equivalent F(5)Na2Nd2 tetrahedra,  an edgeedge with one F(3)Na2Nd2 tetrahedra,  an edgeedge with one F(6)Na2Nd2 tetrahedra,  an edgeedge with one F(7)Na2Nd2 tetrahedra,  an edgeedge with one F(9)Na2Nd2 tetrahedra,  an edgeedge with one F(10)NaNd3 tetrahedra, and  an edgeedge with one F(11)NaNd3 tetrahedra. In the second F site, F(2) is bonded to one Na(2), one Na(3), one Nd(1), and one Nd(3) atom to form distorted FNa2Nd2 tetrahedra that share  a cornercorner with one F(12)Na2Nd2 tetrahedra,  a cornercorner with one F(4)Na2Nd2 tetrahedra,  a cornercorner with one F(10)NaNd3 tetrahedra,  a cornercorner with one F(8)NaNd3 tetrahedra, corners with two equivalent F(1)Na2Nd2 tetrahedra, corners with two equivalent F(7)Na2Nd2 tetrahedra, corners with two equivalent F(11)NaNd3 tetrahedra, corners with three equivalent F(3)Na2Nd2 tetrahedra, corners with four equivalent F(6)Na2Nd2 tetrahedra,  an edgeedge with one F(12)Na2Nd2 tetrahedra,  an edgeedge with one F(4)Na2Nd2 tetrahedra,  an edgeedge with one F(5)Na2Nd2 tetrahedra,  an edgeedge with one F(9)Na2Nd2 tetrahedra,  an edgeedge with one F(10)NaNd3 tetrahedra, and  an edgeedge with one F(8)NaNd3 tetrahedra. In the third F site, F(3) is bonded to one Na(2), one Na(3), one Nd(2), and one Nd(3) atom to form FNa2Nd2 tetrahedra that share  a cornercorner with one F(1)Na2Nd2 tetrahedra,  a cornercorner with one F(12)Na2Nd2 tetrahedra,  a cornercorner with one F(6)Na2Nd2 tetrahedra,  a cornercorner with one F(10)NaNd3 tetrahedra,  a cornercorner with one F(8)NaNd3 tetrahedra, corners with two equivalent F(4)Na2Nd2 tetrahedra, corners with two equivalent F(7)Na2Nd2 tetrahedra, corners with two equivalent F(9)Na2Nd2 tetrahedra, corners with three equivalent F(2)Na2Nd2 tetrahedra, corners with three equivalent F(5)Na2Nd2 tetrahedra,  an edgeedge with one F(1)Na2Nd2 tetrahedra,  an edgeedge with one F(12)Na2Nd2 tetrahedra,  an edgeedge with one F(6)Na2Nd2 tetrahedra,  an edgeedge with one F(10)NaNd3 tetrahedra,  an edgeedge with one F(11)NaNd3 tetrahedra, and  an edgeedge with one F(8)NaNd3 tetrahedra. In the fourth F site, F(4) is bonded to one Na(1), one Na(3), one Nd(1), and one Nd(3) atom to form distorted FNa2Nd2 tetrahedra that share  a cornercorner with one F(2)Na2Nd2 tetrahedra,  a cornercorner with one F(5)Na2Nd2 tetrahedra,  a cornercorner with one F(7)Na2Nd2 tetrahedra,  a cornercorner with one F(9)Na2Nd2 tetrahedra,  a cornercorner with one F(11)NaNd3 tetrahedra, corners with two equivalent F(3)Na2Nd2 tetrahedra, corners with two equivalent F(10)NaNd3 tetrahedra, corners with two equivalent F(8)NaNd3 tetrahedra, corners with three equivalent F(1)Na2Nd2 tetrahedra, corners with three equivalent F(6)Na2Nd2 tetrahedra,  an edgeedge with one F(12)Na2Nd2 tetrahedra,  an edgeedge with one F(2)Na2Nd2 tetrahedra,  an edgeedge with one F(5)Na2Nd2 tetrahedra,  an edgeedge with one F(7)Na2Nd2 tetrahedra,  an edgeedge with one F(9)Na2Nd2 tetrahedra, and  an edgeedge with one F(11)NaNd3 tetrahedra. In the fifth F site, F(5) is bonded to one Na(1), one Na(3), one Nd(2), and one Nd(3) atom to form distorted FNa2Nd2 tetrahedra that share  a cornercorner with one F(4)Na2Nd2 tetrahedra,  a cornercorner with one F(7)Na2Nd2 tetrahedra,  a cornercorner with one F(9)Na2Nd2 tetrahedra,  a cornercorner with one F(11)NaNd3 tetrahedra, corners with two equivalent F(12)Na2Nd2 tetrahedra, corners with two equivalent F(6)Na2Nd2 tetrahedra, corners with two equivalent F(10)NaNd3 tetrahedra, corners with three equivalent F(3)Na2Nd2 tetrahedra, corners with four equivalent F(1)Na2Nd2 tetrahedra,  an edgeedge with one F(2)Na2Nd2 tetrahedra,  an edgeedge with one F(4)Na2Nd2 tetrahedra,  an edgeedge with one F(7)Na2Nd2 tetrahedra,  an edgeedge with one F(9)Na2Nd2 tetrahedra,  an edgeedge with one F(11)NaNd3 tetrahedra, and  an edgeedge with one F(8)NaNd3 tetrahedra. In the sixth F site, F(6) is bonded to one Na(2), one Na(3), one Nd(1), and one Nd(3) atom to form FNa2Nd2 tetrahedra that share  a cornercorner with one F(12)Na2Nd2 tetrahedra,  a cornercorner with one F(3)Na2Nd2 tetrahedra,  a cornercorner with one F(10)NaNd3 tetrahedra,  a cornercorner with one F(8)NaNd3 tetrahedra, corners with two equivalent F(5)Na2Nd2 tetrahedra, corners with two equivalent F(9)Na2Nd2 tetrahedra, corners with two equivalent F(11)NaNd3 tetrahedra, corners with three equivalent F(4)Na2Nd2 tetrahedra, corners with four equivalent F(2)Na2Nd2 tetrahedra,  an edgeedge with one F(1)Na2Nd2 tetrahedra,  an edgeedge with one F(12)Na2Nd2 tetrahedra,  an edgeedge with one F(3)Na2Nd2 tetrahedra,  an edgeedge with one F(7)Na2Nd2 tetrahedra,  an edgeedge with one F(10)NaNd3 tetrahedra, and  an edgeedge with one F(8)NaNd3 tetrahedra. In the seventh F site, F(7) is bonded to one Na(1), one Na(3), one Nd(1), and one Nd(2) atom to form FNa2Nd2 tetrahedra that share  a cornercorner with one F(1)Na2Nd2 tetrahedra,  a cornercorner with one F(4)Na2Nd2 tetrahedra,  a cornercorner with one F(5)Na2Nd2 tetrahedra,  a cornercorner with one F(11)NaNd3 tetrahedra, corners with two equivalent F(2)Na2Nd2 tetrahedra, corners with two equivalent F(3)Na2Nd2 tetrahedra, corners with two equivalent F(8)NaNd3 tetrahedra, corners with three equivalent F(12)Na2Nd2 tetrahedra, corners with four equivalent F(9)Na2Nd2 tetrahedra,  an edgeedge with one F(1)Na2Nd2 tetrahedra,  an edgeedge with one F(4)Na2Nd2 tetrahedra,  an edgeedge with one F(5)Na2Nd2 tetrahedra,  an edgeedge with one F(6)Na2Nd2 tetrahedra,  an edgeedge with one F(10)NaNd3 tetrahedra, and  an edgeedge with one F(11)NaNd3 tetrahedra. In the eighth F site, F(8) is bonded to one Na(2), one Nd(1), one Nd(2), and one Nd(3) atom to form FNaNd3 tetrahedra that share  a cornercorner with one F(12)Na2Nd2 tetrahedra,  a cornercorner with one F(2)Na2Nd2 tetrahedra,  a cornercorner with one F(3)Na2Nd2 tetrahedra,  a cornercorner with one F(6)Na2Nd2 tetrahedra, corners with two equivalent F(1)Na2Nd2 tetrahedra, corners with two equivalent F(4)Na2Nd2 tetrahedra, corners with two equivalent F(7)Na2Nd2 tetrahedra, corners with three equivalent F(11)NaNd3 tetrahedra, corners with four equivalent F(10)NaNd3 tetrahedra,  an edgeedge with one F(12)Na2Nd2 tetrahedra,  an edgeedge with one F(2)Na2Nd2 tetrahedra,  an edgeedge with one F(3)Na2Nd2 tetrahedra,  an edgeedge with one F(5)Na2Nd2 tetrahedra,  an edgeedge with one F(6)Na2Nd2 tetrahedra, and  an edgeedge with one F(9)Na2Nd2 tetrahedra. In the ninth F site, F(9) is bonded to one Na(1), one Na(3), one Nd(1), and one Nd(2) atom to form FNa2Nd2 tetrahedra that share  a cornercorner with one F(1)Na2Nd2 tetrahedra,  a cornercorner with one F(12)Na2Nd2 tetrahedra,  a cornercorner with one F(4)Na2Nd2 tetrahedra,  a cornercorner with one F(5)Na2Nd2 tetrahedra, corners with two equivalent F(3)Na2Nd2 tetrahedra, corners with two equivalent F(6)Na2Nd2 tetrahedra, corners with two equivalent F(10)NaNd3 tetrahedra, corners with three equivalent F(11)NaNd3 tetrahedra, corners with four equivalent F(7)Na2Nd2 tetrahedra,  an edgeedge with one F(1)Na2Nd2 tetrahedra,  an edgeedge with one F(12)Na2Nd2 tetrahedra,  an edgeedge with one F(2)Na2Nd2 tetrahedra,  an edgeedge with one F(4)Na2Nd2 tetrahedra,  an edgeedge with one F(5)Na2Nd2 tetrahedra, and  an edgeedge with one F(8)NaNd3 tetrahedra. In the tenth F site, F(10) is bonded to one Na(2), one Nd(1), one Nd(2), and one Nd(3) atom to form FNaNd3 tetrahedra that share  a cornercorner with one F(2)Na2Nd2 tetrahedra,  a cornercorner with one F(3)Na2Nd2 tetrahedra,  a cornercorner with one F(6)Na2Nd2 tetrahedra,  a cornercorner with one F(11)NaNd3 tetrahedra, corners with two equivalent F(4)Na2Nd2 tetrahedra, corners with two equivalent F(5)Na2Nd2 tetrahedra, corners with two equivalent F(9)Na2Nd2 tetrahedra, corners with three equivalent F(12)Na2Nd2 tetrahedra, corners with four equivalent F(8)NaNd3 tetrahedra,  an edgeedge with one F(1)Na2Nd2 tetrahedra,  an edgeedge with one F(2)Na2Nd2 tetrahedra,  an edgeedge with one F(3)Na2Nd2 tetrahedra,  an edgeedge with one F(6)Na2Nd2 tetrahedra,  an edgeedge with one F(7)Na2Nd2 tetrahedra, and  an edgeedge with one F(11)NaNd3 tetrahedra. In the eleventh F site, F(11) is bonded to one Na(1), one Nd(1), one Nd(2), and one Nd(3) atom to form FNaNd3 tetrahedra that share  a cornercorner with one F(1)Na2Nd2 tetrahedra,  a cornercorner with one F(4)Na2Nd2 tetrahedra,  a cornercorner with one F(5)Na2Nd2 tetrahedra,  a cornercorner with one F(7)Na2Nd2 tetrahedra,  a cornercorner with one F(10)NaNd3 tetrahedra, corners with two equivalent F(12)Na2Nd2 tetrahedra, corners with two equivalent F(2)Na2Nd2 tetrahedra, corners with two equivalent F(6)Na2Nd2 tetrahedra, corners with three equivalent F(9)Na2Nd2 tetrahedra, corners with three equivalent F(8)NaNd3 tetrahedra,  an edgeedge with one F(1)Na2Nd2 tetrahedra,  an edgeedge with one F(3)Na2Nd2 tetrahedra,  an edgeedge with one F(4)Na2Nd2 tetrahedra,  an edgeedge with one F(5)Na2Nd2 tetrahedra,  an edgeedge with one F(7)Na2Nd2 tetrahedra, and  an edgeedge with one F(10)NaNd3 tetrahedra. In the twelfth F site, F(12) is bonded to one Na(2), one Na(3), one Nd(1), and one Nd(2) atom to form FNa2Nd2 tetrahedra that share  a cornercorner with one F(2)Na2Nd2 tetrahedra,  a cornercorner with one F(3)Na2Nd2 tetrahedra,  a cornercorner with one F(6)Na2Nd2 tetrahedra,  a cornercorner with one F(9)Na2Nd2 tetrahedra,  a cornercorner with one F(8)NaNd3 tetrahedra, corners with two equivalent F(1)Na2Nd2 tetrahedra, corners with two equivalent F(5)Na2Nd2 tetrahedra, corners with two equivalent F(11)NaNd3 tetrahedra, corners with three equivalent F(7)Na2Nd2 tetrahedra, corners with three equivalent F(10)NaNd3 tetrahedra,  an edgeedge with one F(2)Na2Nd2 tetrahedra,  an edgeedge with one F(3)Na2Nd2 tetrahedra,  an edgeedge with one F(4)Na2Nd2 tetrahedra,  an edgeedge with one F(6)Na2Nd2 tetrahedra,  an edgeedge with one F(9)Na2Nd2 tetrahedra, and  an edgeedge with one F(8)NaNd3 tetrahedra. is represented by the CIF file [CIF]
data_NaNdF4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.065
_cell_length_b   7.081
_cell_length_c   7.090
_cell_angle_alpha   63.011
_cell_angle_beta   64.765
_cell_angle_gamma   64.773
_symmetry_Int_Tables_number   1
_cell_volume   234.979
_cell_formula_units_Z   3
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
  Na  Na0  1  0.666  0.483  0.167  1.0
  Na  Na1  1  0.663  0.003  0.683  1.0
  Na  Na2  1  0.330  0.426  0.909  1.0
  Nd  Nd3  1  0.003  0.999  0.998  1.0
  Nd  Nd4  1  0.997  0.498  0.505  1.0
  Nd  Nd5  1  0.336  0.921  0.409  1.0
  F  F6  1  0.369  0.541  0.500  1.0
  F  F7  1  0.371  0.007  0.030  1.0
  F  F8  1  0.590  0.709  0.662  1.0
  F  F9  1  0.594  0.169  0.198  1.0
  F  F10  1  0.037  0.279  0.313  1.0
  F  F11  1  0.044  0.818  0.770  1.0
  F  F12  1  0.259  0.624  0.129  1.0
  F  F13  1  0.278  0.129  0.626  1.0
  F  F14  1  0.983  0.381  0.884  1.0
  F  F15  1  0.974  0.887  0.385  1.0
  F  F16  1  0.755  0.733  0.232  1.0
  F  F17  1  0.752  0.243  0.746  1.0
[/CIF]
.