The compound described by EuFCl is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. Eu(1) is bonded in a 9-coordinate geometry to five equivalent Cl(1) and four equivalent F(1) atoms. Cl(1) is bonded to five equivalent Eu(1) atoms to form distorted ClEu5 trigonal bipyramids that share corners with twelve equivalent F(1)Eu4 tetrahedra, corners with four equivalent Cl(1)Eu5 trigonal bipyramids, edges with four equivalent F(1)Eu4 tetrahedra, and edges with eight equivalent Cl(1)Eu5 trigonal bipyramids. F(1) is bonded to four equivalent Eu(1) atoms to form FEu4 tetrahedra that share corners with four equivalent F(1)Eu4 tetrahedra, corners with twelve equivalent Cl(1)Eu5 trigonal bipyramids, edges with four equivalent F(1)Eu4 tetrahedra, and edges with four equivalent Cl(1)Eu5 trigonal bipyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_EuClF
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.084
_cell_length_b   4.084
_cell_length_c   6.979
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   116.377
_cell_formula_units_Z   2
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  0.750  0.750  0.794  1.0
  Eu  Eu1  1  0.250  0.250  0.206  1.0
  Cl  Cl2  1  0.750  0.750  0.355  1.0
  Cl  Cl3  1  0.250  0.250  0.645  1.0
  F  F4  1  0.750  0.250  0.000  1.0
  F  F5  1  0.250  0.750  0.000  1.0
[/CIF]
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The compound described by EuFCl is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. Eu(1) is bonded in a 9-coordinate geometry to five equivalent Cl(1) and four equivalent F(1) atoms. Cl(1) is bonded to five equivalent Eu(1) atoms to form distorted ClEu5 trigonal bipyramids that share corners with twelve equivalent F(1)Eu4 tetrahedra, corners with four equivalent Cl(1)Eu5 trigonal bipyramids, edges with four equivalent F(1)Eu4 tetrahedra, and edges with eight equivalent Cl(1)Eu5 trigonal bipyramids. F(1) is bonded to four equivalent Eu(1) atoms to form FEu4 tetrahedra that share corners with four equivalent F(1)Eu4 tetrahedra, corners with twelve equivalent Cl(1)Eu5 trigonal bipyramids, edges with four equivalent F(1)Eu4 tetrahedra, and edges with four equivalent Cl(1)Eu5 trigonal bipyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_EuClF
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.084
_cell_length_b   4.084
_cell_length_c   6.979
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   116.377
_cell_formula_units_Z   2
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  0.750  0.750  0.794  1.0
  Eu  Eu1  1  0.250  0.250  0.206  1.0
  Cl  Cl2  1  0.750  0.750  0.355  1.0
  Cl  Cl3  1  0.250  0.250  0.645  1.0
  F  F4  1  0.750  0.250  0.000  1.0
  F  F5  1  0.250  0.750  0.000  1.0
[/CIF]
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