The compound described by Eu3Mo is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded to four equivalent Eu(2) and four equivalent Mo(1) atoms to form distorted EuEu4Mo4 tetrahedra that share corners with eight equivalent Eu(2)Eu8Mo4 cuboctahedra, corners with eight equivalent Eu(1)Eu4Mo4 tetrahedra, edges with four equivalent Eu(2)Eu8Mo4 cuboctahedra, edges with twelve equivalent Eu(1)Eu4Mo4 tetrahedra, and faces with six equivalent Eu(1)Eu4Mo4 tetrahedra. In the second Eu site, Eu(2) is bonded to eight equivalent Eu(1) and four equivalent Mo(1) atoms to form distorted EuEu8Mo4 cuboctahedra that share corners with four equivalent Eu(2)Eu8Mo4 cuboctahedra, corners with sixteen equivalent Eu(1)Eu4Mo4 tetrahedra, edges with eight equivalent Eu(2)Eu8Mo4 cuboctahedra, edges with eight equivalent Eu(1)Eu4Mo4 tetrahedra, and faces with four equivalent Eu(2)Eu8Mo4 cuboctahedra. Mo(1) is bonded in a distorted body-centered cubic geometry to four equivalent Eu(2) and eight equivalent Eu(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Eu3Mo
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.691
_cell_length_b   5.691
_cell_length_c   5.691
_cell_angle_alpha   122.622
_cell_angle_beta   122.622
_cell_angle_gamma   85.515
_symmetry_Int_Tables_number   1
_cell_volume   124.769
_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  0.750  0.250  0.500  1.0
  Eu  Eu1  1  0.250  0.750  0.500  1.0
  Eu  Eu2  1  0.500  0.500  0.000  1.0
  Mo  Mo3  1  0.000  0.000  0.000  1.0
[/CIF]
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The compound described by Eu3Mo is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded to four equivalent Eu(2) and four equivalent Mo(1) atoms to form distorted EuEu4Mo4 tetrahedra that share corners with eight equivalent Eu(2)Eu8Mo4 cuboctahedra, corners with eight equivalent Eu(1)Eu4Mo4 tetrahedra, edges with four equivalent Eu(2)Eu8Mo4 cuboctahedra, edges with twelve equivalent Eu(1)Eu4Mo4 tetrahedra, and faces with six equivalent Eu(1)Eu4Mo4 tetrahedra. In the second Eu site, Eu(2) is bonded to eight equivalent Eu(1) and four equivalent Mo(1) atoms to form distorted EuEu8Mo4 cuboctahedra that share corners with four equivalent Eu(2)Eu8Mo4 cuboctahedra, corners with sixteen equivalent Eu(1)Eu4Mo4 tetrahedra, edges with eight equivalent Eu(2)Eu8Mo4 cuboctahedra, edges with eight equivalent Eu(1)Eu4Mo4 tetrahedra, and faces with four equivalent Eu(2)Eu8Mo4 cuboctahedra. Mo(1) is bonded in a distorted body-centered cubic geometry to four equivalent Eu(2) and eight equivalent Eu(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Eu3Mo
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.691
_cell_length_b   5.691
_cell_length_c   5.691
_cell_angle_alpha   122.622
_cell_angle_beta   122.622
_cell_angle_gamma   85.515
_symmetry_Int_Tables_number   1
_cell_volume   124.769
_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  0.750  0.250  0.500  1.0
  Eu  Eu1  1  0.250  0.750  0.500  1.0
  Eu  Eu2  1  0.500  0.500  0.000  1.0
  Mo  Mo3  1  0.000  0.000  0.000  1.0
[/CIF]
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