The material described by Eu7(ClF6)2 crystallizes in the hexagonal P-6 space group. There are three inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 9-coordinate geometry to three equivalent F(1) and six equivalent F(4) atoms. In the second Eu site, Eu(2) is bonded in a 9-coordinate geometry to two equivalent Cl(2), one F(1), two equivalent F(2), two equivalent F(3), and two equivalent F(4) atoms. In the third Eu site, Eu(3) is bonded in a 9-coordinate geometry to two equivalent Cl(1), one F(4), two equivalent F(1), two equivalent F(2), and two equivalent F(3) atoms. There are two inequivalent Cl sites. In the first Cl site, Cl(1) is bonded to six equivalent Eu(3) atoms to form distorted ClEu6 pentagonal pyramids that share corners with six equivalent F(4)Eu5 square pyramids, corners with six equivalent F(1)Eu4 tetrahedra, corners with six equivalent F(2)Eu4 tetrahedra, edges with three equivalent F(1)Eu4 tetrahedra, edges with three equivalent F(2)Eu4 tetrahedra, edges with six equivalent F(3)Eu4 tetrahedra, and faces with two equivalent Cl(1)Eu6 pentagonal pyramids. In the second Cl site, Cl(2) is bonded to six equivalent Eu(2) atoms to form distorted ClEu6 pentagonal pyramids that share corners with six equivalent F(4)Eu5 square pyramids, corners with six equivalent F(1)Eu4 tetrahedra, corners with six equivalent F(3)Eu4 tetrahedra, edges with three equivalent F(4)Eu5 square pyramids, edges with three equivalent F(3)Eu4 tetrahedra, edges with six equivalent F(2)Eu4 tetrahedra, and faces with two equivalent Cl(2)Eu6 pentagonal pyramids. There are four inequivalent F sites. In the first F site, F(1) is bonded to one Eu(1), one Eu(2), and two equivalent Eu(3) atoms to form FEu4 tetrahedra that share corners with two equivalent Cl(1)Eu6 pentagonal pyramids, corners with two equivalent Cl(2)Eu6 pentagonal pyramids, corners with two equivalent F(4)Eu5 square pyramids, corners with two equivalent F(3)Eu4 tetrahedra, corners with four equivalent F(1)Eu4 tetrahedra, corners with four equivalent F(2)Eu4 tetrahedra,  an edgeedge with one Cl(1)Eu6 pentagonal pyramid, edges with four equivalent F(4)Eu5 square pyramids,  an edgeedge with one F(2)Eu4 tetrahedra, and edges with two equivalent F(3)Eu4 tetrahedra. In the second F site, F(2) is bonded to two equivalent Eu(2) and two equivalent Eu(3) atoms to form FEu4 tetrahedra that share corners with two equivalent Cl(1)Eu6 pentagonal pyramids, corners with two equivalent F(4)Eu5 square pyramids, corners with four equivalent F(1)Eu4 tetrahedra, corners with four equivalent F(2)Eu4 tetrahedra, corners with four equivalent F(3)Eu4 tetrahedra,  an edgeedge with one Cl(1)Eu6 pentagonal pyramid, edges with two equivalent Cl(2)Eu6 pentagonal pyramids, edges with two equivalent F(4)Eu5 square pyramids,  an edgeedge with one F(1)Eu4 tetrahedra, and edges with two equivalent F(3)Eu4 tetrahedra. In the third F site, F(3) is bonded to two equivalent Eu(2) and two equivalent Eu(3) atoms to form FEu4 tetrahedra that share corners with two equivalent Cl(2)Eu6 pentagonal pyramids, corners with four equivalent F(4)Eu5 square pyramids, corners with two equivalent F(1)Eu4 tetrahedra, corners with four equivalent F(2)Eu4 tetrahedra, corners with four equivalent F(3)Eu4 tetrahedra,  an edgeedge with one Cl(2)Eu6 pentagonal pyramid, edges with two equivalent Cl(1)Eu6 pentagonal pyramids,  an edgeedge with one F(4)Eu5 square pyramid, edges with two equivalent F(1)Eu4 tetrahedra, and edges with two equivalent F(2)Eu4 tetrahedra. In the fourth F site, F(4) is bonded to one Eu(3), two equivalent Eu(1), and two equivalent Eu(2) atoms to form distorted FEu5 square pyramids that share corners with two equivalent Cl(1)Eu6 pentagonal pyramids, corners with two equivalent Cl(2)Eu6 pentagonal pyramids, corners with four equivalent F(4)Eu5 square pyramids, corners with two equivalent F(1)Eu4 tetrahedra, corners with two equivalent F(2)Eu4 tetrahedra, corners with four equivalent F(3)Eu4 tetrahedra,  an edgeedge with one Cl(2)Eu6 pentagonal pyramid, edges with four equivalent F(4)Eu5 square pyramids,  an edgeedge with one F(3)Eu4 tetrahedra, edges with two equivalent F(2)Eu4 tetrahedra, and edges with four equivalent F(1)Eu4 tetrahedra. is represented by the CIF file [CIF]
data_Eu7(ClF6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.977
_cell_length_b   9.977
_cell_length_c   3.890
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   335.331
_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  0.667  0.333  0.000  1.0
  Eu  Eu1  1  0.368  0.922  1.000  1.0
  Eu  Eu2  1  0.555  0.632  1.000  1.0
  Eu  Eu3  1  0.078  0.445  1.000  1.0
  Eu  Eu4  1  0.782  0.046  0.500  1.0
  Eu  Eu5  1  0.264  0.218  0.500  1.0
  Eu  Eu6  1  0.954  0.736  0.500  1.0
  Cl  Cl7  1  0.000  0.000  0.000  1.0
  Cl  Cl8  1  0.333  0.667  0.500  1.0
  F  F9  1  0.824  0.214  1.000  1.0
  F  F10  1  0.390  0.176  1.000  1.0
  F  F11  1  0.786  0.610  0.000  1.0
  F  F12  1  0.605  0.903  0.000  1.0
  F  F13  1  0.298  0.395  0.000  1.0
  F  F14  1  0.097  0.702  0.000  1.0
  F  F15  1  0.055  0.285  0.500  1.0
  F  F16  1  0.231  0.945  0.500  1.0
  F  F17  1  0.715  0.769  0.500  1.0
  F  F18  1  0.571  0.118  0.500  1.0
  F  F19  1  0.546  0.429  0.500  1.0
  F  F20  1  0.882  0.454  0.500  1.0
[/CIF]
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The material described by Eu7(ClF6)2 crystallizes in the hexagonal P-6 space group. There are three inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 9-coordinate geometry to three equivalent F(1) and six equivalent F(4) atoms. In the second Eu site, Eu(2) is bonded in a 9-coordinate geometry to two equivalent Cl(2), one F(1), two equivalent F(2), two equivalent F(3), and two equivalent F(4) atoms. In the third Eu site, Eu(3) is bonded in a 9-coordinate geometry to two equivalent Cl(1), one F(4), two equivalent F(1), two equivalent F(2), and two equivalent F(3) atoms. There are two inequivalent Cl sites. In the first Cl site, Cl(1) is bonded to six equivalent Eu(3) atoms to form distorted ClEu6 pentagonal pyramids that share corners with six equivalent F(4)Eu5 square pyramids, corners with six equivalent F(1)Eu4 tetrahedra, corners with six equivalent F(2)Eu4 tetrahedra, edges with three equivalent F(1)Eu4 tetrahedra, edges with three equivalent F(2)Eu4 tetrahedra, edges with six equivalent F(3)Eu4 tetrahedra, and faces with two equivalent Cl(1)Eu6 pentagonal pyramids. In the second Cl site, Cl(2) is bonded to six equivalent Eu(2) atoms to form distorted ClEu6 pentagonal pyramids that share corners with six equivalent F(4)Eu5 square pyramids, corners with six equivalent F(1)Eu4 tetrahedra, corners with six equivalent F(3)Eu4 tetrahedra, edges with three equivalent F(4)Eu5 square pyramids, edges with three equivalent F(3)Eu4 tetrahedra, edges with six equivalent F(2)Eu4 tetrahedra, and faces with two equivalent Cl(2)Eu6 pentagonal pyramids. There are four inequivalent F sites. In the first F site, F(1) is bonded to one Eu(1), one Eu(2), and two equivalent Eu(3) atoms to form FEu4 tetrahedra that share corners with two equivalent Cl(1)Eu6 pentagonal pyramids, corners with two equivalent Cl(2)Eu6 pentagonal pyramids, corners with two equivalent F(4)Eu5 square pyramids, corners with two equivalent F(3)Eu4 tetrahedra, corners with four equivalent F(1)Eu4 tetrahedra, corners with four equivalent F(2)Eu4 tetrahedra,  an edgeedge with one Cl(1)Eu6 pentagonal pyramid, edges with four equivalent F(4)Eu5 square pyramids,  an edgeedge with one F(2)Eu4 tetrahedra, and edges with two equivalent F(3)Eu4 tetrahedra. In the second F site, F(2) is bonded to two equivalent Eu(2) and two equivalent Eu(3) atoms to form FEu4 tetrahedra that share corners with two equivalent Cl(1)Eu6 pentagonal pyramids, corners with two equivalent F(4)Eu5 square pyramids, corners with four equivalent F(1)Eu4 tetrahedra, corners with four equivalent F(2)Eu4 tetrahedra, corners with four equivalent F(3)Eu4 tetrahedra,  an edgeedge with one Cl(1)Eu6 pentagonal pyramid, edges with two equivalent Cl(2)Eu6 pentagonal pyramids, edges with two equivalent F(4)Eu5 square pyramids,  an edgeedge with one F(1)Eu4 tetrahedra, and edges with two equivalent F(3)Eu4 tetrahedra. In the third F site, F(3) is bonded to two equivalent Eu(2) and two equivalent Eu(3) atoms to form FEu4 tetrahedra that share corners with two equivalent Cl(2)Eu6 pentagonal pyramids, corners with four equivalent F(4)Eu5 square pyramids, corners with two equivalent F(1)Eu4 tetrahedra, corners with four equivalent F(2)Eu4 tetrahedra, corners with four equivalent F(3)Eu4 tetrahedra,  an edgeedge with one Cl(2)Eu6 pentagonal pyramid, edges with two equivalent Cl(1)Eu6 pentagonal pyramids,  an edgeedge with one F(4)Eu5 square pyramid, edges with two equivalent F(1)Eu4 tetrahedra, and edges with two equivalent F(2)Eu4 tetrahedra. In the fourth F site, F(4) is bonded to one Eu(3), two equivalent Eu(1), and two equivalent Eu(2) atoms to form distorted FEu5 square pyramids that share corners with two equivalent Cl(1)Eu6 pentagonal pyramids, corners with two equivalent Cl(2)Eu6 pentagonal pyramids, corners with four equivalent F(4)Eu5 square pyramids, corners with two equivalent F(1)Eu4 tetrahedra, corners with two equivalent F(2)Eu4 tetrahedra, corners with four equivalent F(3)Eu4 tetrahedra,  an edgeedge with one Cl(2)Eu6 pentagonal pyramid, edges with four equivalent F(4)Eu5 square pyramids,  an edgeedge with one F(3)Eu4 tetrahedra, edges with two equivalent F(2)Eu4 tetrahedra, and edges with four equivalent F(1)Eu4 tetrahedra. is represented by the CIF file [CIF]
data_Eu7(ClF6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.977
_cell_length_b   9.977
_cell_length_c   3.890
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   335.331
_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  0.667  0.333  0.000  1.0
  Eu  Eu1  1  0.368  0.922  1.000  1.0
  Eu  Eu2  1  0.555  0.632  1.000  1.0
  Eu  Eu3  1  0.078  0.445  1.000  1.0
  Eu  Eu4  1  0.782  0.046  0.500  1.0
  Eu  Eu5  1  0.264  0.218  0.500  1.0
  Eu  Eu6  1  0.954  0.736  0.500  1.0
  Cl  Cl7  1  0.000  0.000  0.000  1.0
  Cl  Cl8  1  0.333  0.667  0.500  1.0
  F  F9  1  0.824  0.214  1.000  1.0
  F  F10  1  0.390  0.176  1.000  1.0
  F  F11  1  0.786  0.610  0.000  1.0
  F  F12  1  0.605  0.903  0.000  1.0
  F  F13  1  0.298  0.395  0.000  1.0
  F  F14  1  0.097  0.702  0.000  1.0
  F  F15  1  0.055  0.285  0.500  1.0
  F  F16  1  0.231  0.945  0.500  1.0
  F  F17  1  0.715  0.769  0.500  1.0
  F  F18  1  0.571  0.118  0.500  1.0
  F  F19  1  0.546  0.429  0.500  1.0
  F  F20  1  0.882  0.454  0.500  1.0
[/CIF]
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