The material structure described by Eu is Protactinium-like structured and crystallizes in the monoclinic C2/c space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 10-coordinate geometry to four equivalent Eu(2) and six equivalent Eu(1) atoms. In the second Eu site, Eu(2) is bonded in a 10-coordinate geometry to two equivalent Eu(2) and eight equivalent Eu(1) atoms. is represented by the CIF card [CIF]
data_Eu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.628
_cell_length_b   7.150
_cell_length_c   7.151
_cell_angle_alpha   110.931
_cell_angle_beta   108.007
_cell_angle_gamma   108.067
_symmetry_Int_Tables_number   1
_cell_volume   265.163
_cell_formula_units_Z   6
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  0.936  0.186  0.372  1.0
  Eu  Eu1  1  0.563  0.628  0.814  1.0
  Eu  Eu2  1  0.750  0.186  0.814  1.0
  Eu  Eu3  1  0.437  0.372  0.186  1.0
  Eu  Eu4  1  0.250  0.814  0.186  1.0
  Eu  Eu5  1  0.064  0.814  0.628  1.0
[/CIF]
.
The material structure described by Eu is Protactinium-like structured and crystallizes in the monoclinic C2/c space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 10-coordinate geometry to four equivalent Eu(2) and six equivalent Eu(1) atoms. In the second Eu site, Eu(2) is bonded in a 10-coordinate geometry to two equivalent Eu(2) and eight equivalent Eu(1) atoms. is represented by the CIF card [CIF]
data_Eu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.628
_cell_length_b   7.150
_cell_length_c   7.151
_cell_angle_alpha   110.931
_cell_angle_beta   108.007
_cell_angle_gamma   108.067
_symmetry_Int_Tables_number   1
_cell_volume   265.163
_cell_formula_units_Z   6
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  0.936  0.186  0.372  1.0
  Eu  Eu1  1  0.563  0.628  0.814  1.0
  Eu  Eu2  1  0.750  0.186  0.814  1.0
  Eu  Eu3  1  0.437  0.372  0.186  1.0
  Eu  Eu4  1  0.250  0.814  0.186  1.0
  Eu  Eu5  1  0.064  0.814  0.628  1.0
[/CIF]
.