The material structure described by NaEuF4 crystallizes in the triclinic P1 space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a 9-coordinate geometry to one F(10), one F(11), one F(12), one F(2), one F(3), one F(6), one F(7), one F(8), and one F(9) atom. In the second Na site, Na(2) is bonded in a distorted hexagonal planar geometry to one F(1), one F(11), one F(3), one F(5), one F(7), and one F(9) atom. In the third Na site, Na(3) is bonded in a 6-coordinate geometry to one F(10), one F(12), one F(2), one F(4), one F(6), and one F(8) atom. There are three inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 9-coordinate geometry to one F(1), one F(11), one F(2), one F(3), one F(4), one F(5), one F(6), one F(8), and one F(9) atom. In the second Eu site, Eu(2) is bonded in a 9-coordinate geometry to one F(1), one F(10), one F(12), one F(2), one F(3), one F(4), one F(5), one F(6), and one F(7) atom. In the third Eu site, Eu(3) is bonded in a 9-coordinate geometry to one F(1), one F(10), one F(11), one F(12), one F(4), one F(5), one F(7), one F(8), and one F(9) atom. There are twelve inequivalent F sites. In the first F site, F(1) is bonded to one Na(2), one Eu(1), one Eu(2), and one Eu(3) atom to form FNaEu3 tetrahedra that share  a cornercorner with one F(11)Na2Eu2 tetrahedra,  a cornercorner with one F(3)Na2Eu2 tetrahedra,  a cornercorner with one F(7)Na2Eu2 tetrahedra,  a cornercorner with one F(9)Na2Eu2 tetrahedra, corners with two equivalent F(10)Na2Eu2 tetrahedra, corners with two equivalent F(2)Na2Eu2 tetrahedra, corners with two equivalent F(8)Na2Eu2 tetrahedra, corners with three equivalent F(4)NaEu3 tetrahedra, corners with four equivalent F(5)NaEu3 tetrahedra,  an edgeedge with one F(11)Na2Eu2 tetrahedra,  an edgeedge with one F(12)Na2Eu2 tetrahedra,  an edgeedge with one F(3)Na2Eu2 tetrahedra,  an edgeedge with one F(6)Na2Eu2 tetrahedra,  an edgeedge with one F(7)Na2Eu2 tetrahedra, and  an edgeedge with one F(9)Na2Eu2 tetrahedra. In the second F site, F(2) is bonded to one Na(1), one Na(3), one Eu(1), and one Eu(2) atom to form FNa2Eu2 tetrahedra that share  a cornercorner with one F(10)Na2Eu2 tetrahedra,  a cornercorner with one F(12)Na2Eu2 tetrahedra,  a cornercorner with one F(8)Na2Eu2 tetrahedra,  a cornercorner with one F(4)NaEu3 tetrahedra, corners with two equivalent F(7)Na2Eu2 tetrahedra, corners with two equivalent F(9)Na2Eu2 tetrahedra, corners with two equivalent F(1)NaEu3 tetrahedra, corners with three equivalent F(3)Na2Eu2 tetrahedra, corners with four equivalent F(6)Na2Eu2 tetrahedra,  an edgeedge with one F(10)Na2Eu2 tetrahedra,  an edgeedge with one F(11)Na2Eu2 tetrahedra,  an edgeedge with one F(12)Na2Eu2 tetrahedra,  an edgeedge with one F(8)Na2Eu2 tetrahedra,  an edgeedge with one F(4)NaEu3 tetrahedra, and  an edgeedge with one F(5)NaEu3 tetrahedra. In the third F site, F(3) is bonded to one Na(1), one Na(2), one Eu(1), and one Eu(2) atom to form FNa2Eu2 tetrahedra that share  a cornercorner with one F(11)Na2Eu2 tetrahedra,  a cornercorner with one F(6)Na2Eu2 tetrahedra,  a cornercorner with one F(7)Na2Eu2 tetrahedra,  a cornercorner with one F(9)Na2Eu2 tetrahedra,  a cornercorner with one F(1)NaEu3 tetrahedra, corners with two equivalent F(10)Na2Eu2 tetrahedra, corners with two equivalent F(12)Na2Eu2 tetrahedra, corners with two equivalent F(4)NaEu3 tetrahedra, corners with three equivalent F(2)Na2Eu2 tetrahedra, corners with three equivalent F(5)NaEu3 tetrahedra,  an edgeedge with one F(11)Na2Eu2 tetrahedra,  an edgeedge with one F(6)Na2Eu2 tetrahedra,  an edgeedge with one F(7)Na2Eu2 tetrahedra,  an edgeedge with one F(8)Na2Eu2 tetrahedra,  an edgeedge with one F(9)Na2Eu2 tetrahedra, and  an edgeedge with one F(1)NaEu3 tetrahedra. In the fourth F site, F(4) is bonded to one Na(3), one Eu(1), one Eu(2), and one Eu(3) atom to form FNaEu3 tetrahedra that share  a cornercorner with one F(10)Na2Eu2 tetrahedra,  a cornercorner with one F(12)Na2Eu2 tetrahedra,  a cornercorner with one F(2)Na2Eu2 tetrahedra,  a cornercorner with one F(8)Na2Eu2 tetrahedra,  a cornercorner with one F(5)NaEu3 tetrahedra, corners with two equivalent F(11)Na2Eu2 tetrahedra, corners with two equivalent F(3)Na2Eu2 tetrahedra, corners with two equivalent F(9)Na2Eu2 tetrahedra, corners with three equivalent F(6)Na2Eu2 tetrahedra, corners with three equivalent F(1)NaEu3 tetrahedra,  an edgeedge with one F(10)Na2Eu2 tetrahedra,  an edgeedge with one F(12)Na2Eu2 tetrahedra,  an edgeedge with one F(2)Na2Eu2 tetrahedra,  an edgeedge with one F(7)Na2Eu2 tetrahedra,  an edgeedge with one F(8)Na2Eu2 tetrahedra, and  an edgeedge with one F(5)NaEu3 tetrahedra. In the fifth F site, F(5) is bonded to one Na(2), one Eu(1), one Eu(2), and one Eu(3) atom to form FNaEu3 tetrahedra that share  a cornercorner with one F(11)Na2Eu2 tetrahedra,  a cornercorner with one F(7)Na2Eu2 tetrahedra,  a cornercorner with one F(9)Na2Eu2 tetrahedra,  a cornercorner with one F(4)NaEu3 tetrahedra, corners with two equivalent F(12)Na2Eu2 tetrahedra, corners with two equivalent F(6)Na2Eu2 tetrahedra, corners with two equivalent F(8)Na2Eu2 tetrahedra, corners with three equivalent F(3)Na2Eu2 tetrahedra, corners with four equivalent F(1)NaEu3 tetrahedra,  an edgeedge with one F(10)Na2Eu2 tetrahedra,  an edgeedge with one F(11)Na2Eu2 tetrahedra,  an edgeedge with one F(2)Na2Eu2 tetrahedra,  an edgeedge with one F(7)Na2Eu2 tetrahedra,  an edgeedge with one F(9)Na2Eu2 tetrahedra, and  an edgeedge with one F(4)NaEu3 tetrahedra. In the sixth F site, F(6) is bonded to one Na(1), one Na(3), one Eu(1), and one Eu(2) atom to form FNa2Eu2 tetrahedra that share  a cornercorner with one F(10)Na2Eu2 tetrahedra,  a cornercorner with one F(12)Na2Eu2 tetrahedra,  a cornercorner with one F(3)Na2Eu2 tetrahedra,  a cornercorner with one F(8)Na2Eu2 tetrahedra, corners with two equivalent F(11)Na2Eu2 tetrahedra, corners with two equivalent F(7)Na2Eu2 tetrahedra, corners with two equivalent F(5)NaEu3 tetrahedra, corners with three equivalent F(4)NaEu3 tetrahedra, corners with four equivalent F(2)Na2Eu2 tetrahedra,  an edgeedge with one F(10)Na2Eu2 tetrahedra,  an edgeedge with one F(12)Na2Eu2 tetrahedra,  an edgeedge with one F(3)Na2Eu2 tetrahedra,  an edgeedge with one F(8)Na2Eu2 tetrahedra,  an edgeedge with one F(9)Na2Eu2 tetrahedra, and  an edgeedge with one F(1)NaEu3 tetrahedra. In the seventh F site, F(7) is bonded to one Na(1), one Na(2), one Eu(2), and one Eu(3) atom to form FNa2Eu2 tetrahedra that share  a cornercorner with one F(10)Na2Eu2 tetrahedra,  a cornercorner with one F(11)Na2Eu2 tetrahedra,  a cornercorner with one F(3)Na2Eu2 tetrahedra,  a cornercorner with one F(1)NaEu3 tetrahedra,  a cornercorner with one F(5)NaEu3 tetrahedra, corners with two equivalent F(2)Na2Eu2 tetrahedra, corners with two equivalent F(6)Na2Eu2 tetrahedra, corners with two equivalent F(8)Na2Eu2 tetrahedra, corners with three equivalent F(12)Na2Eu2 tetrahedra, corners with three equivalent F(9)Na2Eu2 tetrahedra,  an edgeedge with one F(10)Na2Eu2 tetrahedra,  an edgeedge with one F(11)Na2Eu2 tetrahedra,  an edgeedge with one F(3)Na2Eu2 tetrahedra,  an edgeedge with one F(1)NaEu3 tetrahedra,  an edgeedge with one F(4)NaEu3 tetrahedra, and  an edgeedge with one F(5)NaEu3 tetrahedra. In the eighth F site, F(8) is bonded to one Na(1), one Na(3), one Eu(1), and one Eu(3) atom to form distorted FNa2Eu2 tetrahedra that share  a cornercorner with one F(12)Na2Eu2 tetrahedra,  a cornercorner with one F(2)Na2Eu2 tetrahedra,  a cornercorner with one F(6)Na2Eu2 tetrahedra,  a cornercorner with one F(9)Na2Eu2 tetrahedra,  a cornercorner with one F(4)NaEu3 tetrahedra, corners with two equivalent F(7)Na2Eu2 tetrahedra, corners with two equivalent F(1)NaEu3 tetrahedra, corners with two equivalent F(5)NaEu3 tetrahedra, corners with three equivalent F(10)Na2Eu2 tetrahedra, corners with three equivalent F(11)Na2Eu2 tetrahedra,  an edgeedge with one F(12)Na2Eu2 tetrahedra,  an edgeedge with one F(2)Na2Eu2 tetrahedra,  an edgeedge with one F(3)Na2Eu2 tetrahedra,  an edgeedge with one F(6)Na2Eu2 tetrahedra,  an edgeedge with one F(9)Na2Eu2 tetrahedra, and  an edgeedge with one F(4)NaEu3 tetrahedra. In the ninth F site, F(9) is bonded to one Na(1), one Na(2), one Eu(1), and one Eu(3) atom to form FNa2Eu2 tetrahedra that share  a cornercorner with one F(3)Na2Eu2 tetrahedra,  a cornercorner with one F(8)Na2Eu2 tetrahedra,  a cornercorner with one F(1)NaEu3 tetrahedra,  a cornercorner with one F(5)NaEu3 tetrahedra, corners with two equivalent F(10)Na2Eu2 tetrahedra, corners with two equivalent F(2)Na2Eu2 tetrahedra, corners with two equivalent F(4)NaEu3 tetrahedra, corners with three equivalent F(7)Na2Eu2 tetrahedra, corners with four equivalent F(11)Na2Eu2 tetrahedra,  an edgeedge with one F(12)Na2Eu2 tetrahedra,  an edgeedge with one F(3)Na2Eu2 tetrahedra,  an edgeedge with one F(6)Na2Eu2 tetrahedra,  an edgeedge with one F(8)Na2Eu2 tetrahedra,  an edgeedge with one F(1)NaEu3 tetrahedra, and  an edgeedge with one F(5)NaEu3 tetrahedra. In the tenth F site, F(10) is bonded to one Na(1), one Na(3), one Eu(2), and one Eu(3) atom to form FNa2Eu2 tetrahedra that share  a cornercorner with one F(2)Na2Eu2 tetrahedra,  a cornercorner with one F(6)Na2Eu2 tetrahedra,  a cornercorner with one F(7)Na2Eu2 tetrahedra,  a cornercorner with one F(4)NaEu3 tetrahedra, corners with two equivalent F(3)Na2Eu2 tetrahedra, corners with two equivalent F(9)Na2Eu2 tetrahedra, corners with two equivalent F(1)NaEu3 tetrahedra, corners with three equivalent F(8)Na2Eu2 tetrahedra, corners with four equivalent F(12)Na2Eu2 tetrahedra,  an edgeedge with one F(11)Na2Eu2 tetrahedra,  an edgeedge with one F(2)Na2Eu2 tetrahedra,  an edgeedge with one F(6)Na2Eu2 tetrahedra,  an edgeedge with one F(7)Na2Eu2 tetrahedra,  an edgeedge with one F(4)NaEu3 tetrahedra, and  an edgeedge with one F(5)NaEu3 tetrahedra. In the eleventh F site, F(11) is bonded to one Na(1), one Na(2), one Eu(1), and one Eu(3) atom to form FNa2Eu2 tetrahedra that share  a cornercorner with one F(3)Na2Eu2 tetrahedra,  a cornercorner with one F(7)Na2Eu2 tetrahedra,  a cornercorner with one F(1)NaEu3 tetrahedra,  a cornercorner with one F(5)NaEu3 tetrahedra, corners with two equivalent F(12)Na2Eu2 tetrahedra, corners with two equivalent F(6)Na2Eu2 tetrahedra, corners with two equivalent F(4)NaEu3 tetrahedra, corners with three equivalent F(8)Na2Eu2 tetrahedra, corners with four equivalent F(9)Na2Eu2 tetrahedra,  an edgeedge with one F(10)Na2Eu2 tetrahedra,  an edgeedge with one F(2)Na2Eu2 tetrahedra,  an edgeedge with one F(3)Na2Eu2 tetrahedra,  an edgeedge with one F(7)Na2Eu2 tetrahedra,  an edgeedge with one F(1)NaEu3 tetrahedra, and  an edgeedge with one F(5)NaEu3 tetrahedra. In the twelfth F site, F(12) is bonded to one Na(1), one Na(3), one Eu(2), and one Eu(3) atom to form FNa2Eu2 tetrahedra that share  a cornercorner with one F(2)Na2Eu2 tetrahedra,  a cornercorner with one F(6)Na2Eu2 tetrahedra,  a cornercorner with one F(8)Na2Eu2 tetrahedra,  a cornercorner with one F(4)NaEu3 tetrahedra, corners with two equivalent F(11)Na2Eu2 tetrahedra, corners with two equivalent F(3)Na2Eu2 tetrahedra, corners with two equivalent F(5)NaEu3 tetrahedra, corners with three equivalent F(7)Na2Eu2 tetrahedra, corners with four equivalent F(10)Na2Eu2 tetrahedra,  an edgeedge with one F(2)Na2Eu2 tetrahedra,  an edgeedge with one F(6)Na2Eu2 tetrahedra,  an edgeedge with one F(8)Na2Eu2 tetrahedra,  an edgeedge with one F(9)Na2Eu2 tetrahedra,  an edgeedge with one F(1)NaEu3 tetrahedra, and  an edgeedge with one F(4)NaEu3 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_NaEuF4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.239
_cell_length_b   7.216
_cell_length_c   7.257
_cell_angle_alpha   84.166
_cell_angle_beta   115.408
_cell_angle_gamma   64.567
_symmetry_Int_Tables_number   1
_cell_volume   249.596
_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  0.753  0.914  0.421  1.0
  Na  Na1  1  0.658  0.679  0.003  1.0
  Na  Na2  1  0.167  0.166  0.489  1.0
  Eu  Eu3  1  0.998  0.001  0.998  1.0
  Eu  Eu4  1  0.496  0.505  0.496  1.0
  Eu  Eu5  1  0.254  0.412  0.919  1.0
  F  F6  1  0.096  0.627  0.124  1.0
  F  F7  1  0.616  0.135  0.629  1.0
  F  F8  1  0.496  0.742  0.240  1.0
  F  F9  1  0.009  0.236  0.735  1.0
  F  F10  1  0.635  0.388  0.888  1.0
  F  F11  1  0.142  0.884  0.375  1.0
  F  F12  1  0.750  0.654  0.701  1.0
  F  F13  1  0.210  0.194  0.158  1.0
  F  F14  1  0.605  0.039  0.007  1.0
  F  F15  1  0.142  0.503  0.547  1.0
  F  F16  1  0.173  0.774  0.822  1.0
  F  F17  1  0.634  0.313  0.282  1.0
[/CIF]
.
The material structure described by NaEuF4 crystallizes in the triclinic P1 space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a 9-coordinate geometry to one F(10), one F(11), one F(12), one F(2), one F(3), one F(6), one F(7), one F(8), and one F(9) atom. In the second Na site, Na(2) is bonded in a distorted hexagonal planar geometry to one F(1), one F(11), one F(3), one F(5), one F(7), and one F(9) atom. In the third Na site, Na(3) is bonded in a 6-coordinate geometry to one F(10), one F(12), one F(2), one F(4), one F(6), and one F(8) atom. There are three inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 9-coordinate geometry to one F(1), one F(11), one F(2), one F(3), one F(4), one F(5), one F(6), one F(8), and one F(9) atom. In the second Eu site, Eu(2) is bonded in a 9-coordinate geometry to one F(1), one F(10), one F(12), one F(2), one F(3), one F(4), one F(5), one F(6), and one F(7) atom. In the third Eu site, Eu(3) is bonded in a 9-coordinate geometry to one F(1), one F(10), one F(11), one F(12), one F(4), one F(5), one F(7), one F(8), and one F(9) atom. There are twelve inequivalent F sites. In the first F site, F(1) is bonded to one Na(2), one Eu(1), one Eu(2), and one Eu(3) atom to form FNaEu3 tetrahedra that share  a cornercorner with one F(11)Na2Eu2 tetrahedra,  a cornercorner with one F(3)Na2Eu2 tetrahedra,  a cornercorner with one F(7)Na2Eu2 tetrahedra,  a cornercorner with one F(9)Na2Eu2 tetrahedra, corners with two equivalent F(10)Na2Eu2 tetrahedra, corners with two equivalent F(2)Na2Eu2 tetrahedra, corners with two equivalent F(8)Na2Eu2 tetrahedra, corners with three equivalent F(4)NaEu3 tetrahedra, corners with four equivalent F(5)NaEu3 tetrahedra,  an edgeedge with one F(11)Na2Eu2 tetrahedra,  an edgeedge with one F(12)Na2Eu2 tetrahedra,  an edgeedge with one F(3)Na2Eu2 tetrahedra,  an edgeedge with one F(6)Na2Eu2 tetrahedra,  an edgeedge with one F(7)Na2Eu2 tetrahedra, and  an edgeedge with one F(9)Na2Eu2 tetrahedra. In the second F site, F(2) is bonded to one Na(1), one Na(3), one Eu(1), and one Eu(2) atom to form FNa2Eu2 tetrahedra that share  a cornercorner with one F(10)Na2Eu2 tetrahedra,  a cornercorner with one F(12)Na2Eu2 tetrahedra,  a cornercorner with one F(8)Na2Eu2 tetrahedra,  a cornercorner with one F(4)NaEu3 tetrahedra, corners with two equivalent F(7)Na2Eu2 tetrahedra, corners with two equivalent F(9)Na2Eu2 tetrahedra, corners with two equivalent F(1)NaEu3 tetrahedra, corners with three equivalent F(3)Na2Eu2 tetrahedra, corners with four equivalent F(6)Na2Eu2 tetrahedra,  an edgeedge with one F(10)Na2Eu2 tetrahedra,  an edgeedge with one F(11)Na2Eu2 tetrahedra,  an edgeedge with one F(12)Na2Eu2 tetrahedra,  an edgeedge with one F(8)Na2Eu2 tetrahedra,  an edgeedge with one F(4)NaEu3 tetrahedra, and  an edgeedge with one F(5)NaEu3 tetrahedra. In the third F site, F(3) is bonded to one Na(1), one Na(2), one Eu(1), and one Eu(2) atom to form FNa2Eu2 tetrahedra that share  a cornercorner with one F(11)Na2Eu2 tetrahedra,  a cornercorner with one F(6)Na2Eu2 tetrahedra,  a cornercorner with one F(7)Na2Eu2 tetrahedra,  a cornercorner with one F(9)Na2Eu2 tetrahedra,  a cornercorner with one F(1)NaEu3 tetrahedra, corners with two equivalent F(10)Na2Eu2 tetrahedra, corners with two equivalent F(12)Na2Eu2 tetrahedra, corners with two equivalent F(4)NaEu3 tetrahedra, corners with three equivalent F(2)Na2Eu2 tetrahedra, corners with three equivalent F(5)NaEu3 tetrahedra,  an edgeedge with one F(11)Na2Eu2 tetrahedra,  an edgeedge with one F(6)Na2Eu2 tetrahedra,  an edgeedge with one F(7)Na2Eu2 tetrahedra,  an edgeedge with one F(8)Na2Eu2 tetrahedra,  an edgeedge with one F(9)Na2Eu2 tetrahedra, and  an edgeedge with one F(1)NaEu3 tetrahedra. In the fourth F site, F(4) is bonded to one Na(3), one Eu(1), one Eu(2), and one Eu(3) atom to form FNaEu3 tetrahedra that share  a cornercorner with one F(10)Na2Eu2 tetrahedra,  a cornercorner with one F(12)Na2Eu2 tetrahedra,  a cornercorner with one F(2)Na2Eu2 tetrahedra,  a cornercorner with one F(8)Na2Eu2 tetrahedra,  a cornercorner with one F(5)NaEu3 tetrahedra, corners with two equivalent F(11)Na2Eu2 tetrahedra, corners with two equivalent F(3)Na2Eu2 tetrahedra, corners with two equivalent F(9)Na2Eu2 tetrahedra, corners with three equivalent F(6)Na2Eu2 tetrahedra, corners with three equivalent F(1)NaEu3 tetrahedra,  an edgeedge with one F(10)Na2Eu2 tetrahedra,  an edgeedge with one F(12)Na2Eu2 tetrahedra,  an edgeedge with one F(2)Na2Eu2 tetrahedra,  an edgeedge with one F(7)Na2Eu2 tetrahedra,  an edgeedge with one F(8)Na2Eu2 tetrahedra, and  an edgeedge with one F(5)NaEu3 tetrahedra. In the fifth F site, F(5) is bonded to one Na(2), one Eu(1), one Eu(2), and one Eu(3) atom to form FNaEu3 tetrahedra that share  a cornercorner with one F(11)Na2Eu2 tetrahedra,  a cornercorner with one F(7)Na2Eu2 tetrahedra,  a cornercorner with one F(9)Na2Eu2 tetrahedra,  a cornercorner with one F(4)NaEu3 tetrahedra, corners with two equivalent F(12)Na2Eu2 tetrahedra, corners with two equivalent F(6)Na2Eu2 tetrahedra, corners with two equivalent F(8)Na2Eu2 tetrahedra, corners with three equivalent F(3)Na2Eu2 tetrahedra, corners with four equivalent F(1)NaEu3 tetrahedra,  an edgeedge with one F(10)Na2Eu2 tetrahedra,  an edgeedge with one F(11)Na2Eu2 tetrahedra,  an edgeedge with one F(2)Na2Eu2 tetrahedra,  an edgeedge with one F(7)Na2Eu2 tetrahedra,  an edgeedge with one F(9)Na2Eu2 tetrahedra, and  an edgeedge with one F(4)NaEu3 tetrahedra. In the sixth F site, F(6) is bonded to one Na(1), one Na(3), one Eu(1), and one Eu(2) atom to form FNa2Eu2 tetrahedra that share  a cornercorner with one F(10)Na2Eu2 tetrahedra,  a cornercorner with one F(12)Na2Eu2 tetrahedra,  a cornercorner with one F(3)Na2Eu2 tetrahedra,  a cornercorner with one F(8)Na2Eu2 tetrahedra, corners with two equivalent F(11)Na2Eu2 tetrahedra, corners with two equivalent F(7)Na2Eu2 tetrahedra, corners with two equivalent F(5)NaEu3 tetrahedra, corners with three equivalent F(4)NaEu3 tetrahedra, corners with four equivalent F(2)Na2Eu2 tetrahedra,  an edgeedge with one F(10)Na2Eu2 tetrahedra,  an edgeedge with one F(12)Na2Eu2 tetrahedra,  an edgeedge with one F(3)Na2Eu2 tetrahedra,  an edgeedge with one F(8)Na2Eu2 tetrahedra,  an edgeedge with one F(9)Na2Eu2 tetrahedra, and  an edgeedge with one F(1)NaEu3 tetrahedra. In the seventh F site, F(7) is bonded to one Na(1), one Na(2), one Eu(2), and one Eu(3) atom to form FNa2Eu2 tetrahedra that share  a cornercorner with one F(10)Na2Eu2 tetrahedra,  a cornercorner with one F(11)Na2Eu2 tetrahedra,  a cornercorner with one F(3)Na2Eu2 tetrahedra,  a cornercorner with one F(1)NaEu3 tetrahedra,  a cornercorner with one F(5)NaEu3 tetrahedra, corners with two equivalent F(2)Na2Eu2 tetrahedra, corners with two equivalent F(6)Na2Eu2 tetrahedra, corners with two equivalent F(8)Na2Eu2 tetrahedra, corners with three equivalent F(12)Na2Eu2 tetrahedra, corners with three equivalent F(9)Na2Eu2 tetrahedra,  an edgeedge with one F(10)Na2Eu2 tetrahedra,  an edgeedge with one F(11)Na2Eu2 tetrahedra,  an edgeedge with one F(3)Na2Eu2 tetrahedra,  an edgeedge with one F(1)NaEu3 tetrahedra,  an edgeedge with one F(4)NaEu3 tetrahedra, and  an edgeedge with one F(5)NaEu3 tetrahedra. In the eighth F site, F(8) is bonded to one Na(1), one Na(3), one Eu(1), and one Eu(3) atom to form distorted FNa2Eu2 tetrahedra that share  a cornercorner with one F(12)Na2Eu2 tetrahedra,  a cornercorner with one F(2)Na2Eu2 tetrahedra,  a cornercorner with one F(6)Na2Eu2 tetrahedra,  a cornercorner with one F(9)Na2Eu2 tetrahedra,  a cornercorner with one F(4)NaEu3 tetrahedra, corners with two equivalent F(7)Na2Eu2 tetrahedra, corners with two equivalent F(1)NaEu3 tetrahedra, corners with two equivalent F(5)NaEu3 tetrahedra, corners with three equivalent F(10)Na2Eu2 tetrahedra, corners with three equivalent F(11)Na2Eu2 tetrahedra,  an edgeedge with one F(12)Na2Eu2 tetrahedra,  an edgeedge with one F(2)Na2Eu2 tetrahedra,  an edgeedge with one F(3)Na2Eu2 tetrahedra,  an edgeedge with one F(6)Na2Eu2 tetrahedra,  an edgeedge with one F(9)Na2Eu2 tetrahedra, and  an edgeedge with one F(4)NaEu3 tetrahedra. In the ninth F site, F(9) is bonded to one Na(1), one Na(2), one Eu(1), and one Eu(3) atom to form FNa2Eu2 tetrahedra that share  a cornercorner with one F(3)Na2Eu2 tetrahedra,  a cornercorner with one F(8)Na2Eu2 tetrahedra,  a cornercorner with one F(1)NaEu3 tetrahedra,  a cornercorner with one F(5)NaEu3 tetrahedra, corners with two equivalent F(10)Na2Eu2 tetrahedra, corners with two equivalent F(2)Na2Eu2 tetrahedra, corners with two equivalent F(4)NaEu3 tetrahedra, corners with three equivalent F(7)Na2Eu2 tetrahedra, corners with four equivalent F(11)Na2Eu2 tetrahedra,  an edgeedge with one F(12)Na2Eu2 tetrahedra,  an edgeedge with one F(3)Na2Eu2 tetrahedra,  an edgeedge with one F(6)Na2Eu2 tetrahedra,  an edgeedge with one F(8)Na2Eu2 tetrahedra,  an edgeedge with one F(1)NaEu3 tetrahedra, and  an edgeedge with one F(5)NaEu3 tetrahedra. In the tenth F site, F(10) is bonded to one Na(1), one Na(3), one Eu(2), and one Eu(3) atom to form FNa2Eu2 tetrahedra that share  a cornercorner with one F(2)Na2Eu2 tetrahedra,  a cornercorner with one F(6)Na2Eu2 tetrahedra,  a cornercorner with one F(7)Na2Eu2 tetrahedra,  a cornercorner with one F(4)NaEu3 tetrahedra, corners with two equivalent F(3)Na2Eu2 tetrahedra, corners with two equivalent F(9)Na2Eu2 tetrahedra, corners with two equivalent F(1)NaEu3 tetrahedra, corners with three equivalent F(8)Na2Eu2 tetrahedra, corners with four equivalent F(12)Na2Eu2 tetrahedra,  an edgeedge with one F(11)Na2Eu2 tetrahedra,  an edgeedge with one F(2)Na2Eu2 tetrahedra,  an edgeedge with one F(6)Na2Eu2 tetrahedra,  an edgeedge with one F(7)Na2Eu2 tetrahedra,  an edgeedge with one F(4)NaEu3 tetrahedra, and  an edgeedge with one F(5)NaEu3 tetrahedra. In the eleventh F site, F(11) is bonded to one Na(1), one Na(2), one Eu(1), and one Eu(3) atom to form FNa2Eu2 tetrahedra that share  a cornercorner with one F(3)Na2Eu2 tetrahedra,  a cornercorner with one F(7)Na2Eu2 tetrahedra,  a cornercorner with one F(1)NaEu3 tetrahedra,  a cornercorner with one F(5)NaEu3 tetrahedra, corners with two equivalent F(12)Na2Eu2 tetrahedra, corners with two equivalent F(6)Na2Eu2 tetrahedra, corners with two equivalent F(4)NaEu3 tetrahedra, corners with three equivalent F(8)Na2Eu2 tetrahedra, corners with four equivalent F(9)Na2Eu2 tetrahedra,  an edgeedge with one F(10)Na2Eu2 tetrahedra,  an edgeedge with one F(2)Na2Eu2 tetrahedra,  an edgeedge with one F(3)Na2Eu2 tetrahedra,  an edgeedge with one F(7)Na2Eu2 tetrahedra,  an edgeedge with one F(1)NaEu3 tetrahedra, and  an edgeedge with one F(5)NaEu3 tetrahedra. In the twelfth F site, F(12) is bonded to one Na(1), one Na(3), one Eu(2), and one Eu(3) atom to form FNa2Eu2 tetrahedra that share  a cornercorner with one F(2)Na2Eu2 tetrahedra,  a cornercorner with one F(6)Na2Eu2 tetrahedra,  a cornercorner with one F(8)Na2Eu2 tetrahedra,  a cornercorner with one F(4)NaEu3 tetrahedra, corners with two equivalent F(11)Na2Eu2 tetrahedra, corners with two equivalent F(3)Na2Eu2 tetrahedra, corners with two equivalent F(5)NaEu3 tetrahedra, corners with three equivalent F(7)Na2Eu2 tetrahedra, corners with four equivalent F(10)Na2Eu2 tetrahedra,  an edgeedge with one F(2)Na2Eu2 tetrahedra,  an edgeedge with one F(6)Na2Eu2 tetrahedra,  an edgeedge with one F(8)Na2Eu2 tetrahedra,  an edgeedge with one F(9)Na2Eu2 tetrahedra,  an edgeedge with one F(1)NaEu3 tetrahedra, and  an edgeedge with one F(4)NaEu3 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_NaEuF4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.239
_cell_length_b   7.216
_cell_length_c   7.257
_cell_angle_alpha   84.166
_cell_angle_beta   115.408
_cell_angle_gamma   64.567
_symmetry_Int_Tables_number   1
_cell_volume   249.596
_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  0.753  0.914  0.421  1.0
  Na  Na1  1  0.658  0.679  0.003  1.0
  Na  Na2  1  0.167  0.166  0.489  1.0
  Eu  Eu3  1  0.998  0.001  0.998  1.0
  Eu  Eu4  1  0.496  0.505  0.496  1.0
  Eu  Eu5  1  0.254  0.412  0.919  1.0
  F  F6  1  0.096  0.627  0.124  1.0
  F  F7  1  0.616  0.135  0.629  1.0
  F  F8  1  0.496  0.742  0.240  1.0
  F  F9  1  0.009  0.236  0.735  1.0
  F  F10  1  0.635  0.388  0.888  1.0
  F  F11  1  0.142  0.884  0.375  1.0
  F  F12  1  0.750  0.654  0.701  1.0
  F  F13  1  0.210  0.194  0.158  1.0
  F  F14  1  0.605  0.039  0.007  1.0
  F  F15  1  0.142  0.503  0.547  1.0
  F  F16  1  0.173  0.774  0.822  1.0
  F  F17  1  0.634  0.313  0.282  1.0
[/CIF]
.