The crystal structure described by EuCl3 crystallizes in the monoclinic Pm space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 9-coordinate geometry to one Cl(1), one Cl(2), one Cl(6), two equivalent Cl(3), two equivalent Cl(4), and two equivalent Cl(5) atoms. In the second Eu site, Eu(2) is bonded in a 9-coordinate geometry to one Cl(3), one Cl(4), one Cl(5), two equivalent Cl(1), two equivalent Cl(2), and two equivalent Cl(6) atoms. There are six inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a trigonal non-coplanar geometry to one Eu(1) and two equivalent Eu(2) atoms. In the second Cl site, Cl(2) is bonded in a trigonal non-coplanar geometry to one Eu(1) and two equivalent Eu(2) atoms. In the third Cl site, Cl(3) is bonded in a trigonal non-coplanar geometry to one Eu(2) and two equivalent Eu(1) atoms. In the fourth Cl site, Cl(4) is bonded in a trigonal non-coplanar geometry to one Eu(2) and two equivalent Eu(1) atoms. In the fifth Cl site, Cl(5) is bonded in a trigonal non-coplanar geometry to one Eu(2) and two equivalent Eu(1) atoms. In the sixth Cl site, Cl(6) is bonded in a trigonal non-coplanar geometry to one Eu(1) and two equivalent Eu(2) atoms. is represented by the CIF card [CIF]
data_EuCl3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.486
_cell_length_b   7.435
_cell_length_c   4.223
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.535
_symmetry_Int_Tables_number   1
_cell_volume   204.508
_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  0.334  0.667  0.250  1.0
  Eu  Eu1  1  0.670  0.330  0.750  1.0
  Cl  Cl2  1  0.391  0.309  0.250  1.0
  Cl  Cl3  1  0.910  0.608  0.250  1.0
  Cl  Cl4  1  0.303  0.916  0.750  1.0
  Cl  Cl5  1  0.610  0.695  0.750  1.0
  Cl  Cl6  1  0.085  0.393  0.750  1.0
  Cl  Cl7  1  0.696  0.082  0.250  1.0
[/CIF]
.
The crystal structure described by EuCl3 crystallizes in the monoclinic Pm space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 9-coordinate geometry to one Cl(1), one Cl(2), one Cl(6), two equivalent Cl(3), two equivalent Cl(4), and two equivalent Cl(5) atoms. In the second Eu site, Eu(2) is bonded in a 9-coordinate geometry to one Cl(3), one Cl(4), one Cl(5), two equivalent Cl(1), two equivalent Cl(2), and two equivalent Cl(6) atoms. There are six inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a trigonal non-coplanar geometry to one Eu(1) and two equivalent Eu(2) atoms. In the second Cl site, Cl(2) is bonded in a trigonal non-coplanar geometry to one Eu(1) and two equivalent Eu(2) atoms. In the third Cl site, Cl(3) is bonded in a trigonal non-coplanar geometry to one Eu(2) and two equivalent Eu(1) atoms. In the fourth Cl site, Cl(4) is bonded in a trigonal non-coplanar geometry to one Eu(2) and two equivalent Eu(1) atoms. In the fifth Cl site, Cl(5) is bonded in a trigonal non-coplanar geometry to one Eu(2) and two equivalent Eu(1) atoms. In the sixth Cl site, Cl(6) is bonded in a trigonal non-coplanar geometry to one Eu(1) and two equivalent Eu(2) atoms. is represented by the CIF card [CIF]
data_EuCl3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.486
_cell_length_b   7.435
_cell_length_c   4.223
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.535
_symmetry_Int_Tables_number   1
_cell_volume   204.508
_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  0.334  0.667  0.250  1.0
  Eu  Eu1  1  0.670  0.330  0.750  1.0
  Cl  Cl2  1  0.391  0.309  0.250  1.0
  Cl  Cl3  1  0.910  0.608  0.250  1.0
  Cl  Cl4  1  0.303  0.916  0.750  1.0
  Cl  Cl5  1  0.610  0.695  0.750  1.0
  Cl  Cl6  1  0.085  0.393  0.750  1.0
  Cl  Cl7  1  0.696  0.082  0.250  1.0
[/CIF]
.