The material structure described by Eu2O3.MoO3 crystallizes in the monoclinic C2/c space group. There are three inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), and four equivalent O(5) atoms. In the second Eu site, Eu(2) is bonded in a distorted body-centered cubic geometry to two equivalent O(1), two equivalent O(2), and four equivalent O(6) atoms. In the third Eu site, Eu(3) is bonded in a 8-coordinate geometry to one O(1), one O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(6) atoms. Mo(1) is bonded in a distorted trigonal bipyramidal geometry to one O(1), one O(2), one O(3), one O(4), and one O(5) atom. There are six inequivalent O sites. In the first O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Eu(3) and one Mo(1) atom. In the second O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Eu(3) and one Mo(1) atom. In the third O site, O(5) is bonded in a 3-coordinate geometry to two equivalent Eu(1) and one Mo(1) atom. In the fourth O site, O(6) is bonded to two equivalent Eu(2) and two equivalent Eu(3) atoms to form OEu4 tetrahedra that share corners with two equivalent O(6)Eu4 tetrahedra, corners with four equivalent O(1)Eu3Mo tetrahedra,  an edgeedge with one O(1)Eu3Mo tetrahedra, and edges with three equivalent O(6)Eu4 tetrahedra. In the fifth O site, O(1) is bonded to one Eu(1), one Eu(2), one Eu(3), and one Mo(1) atom to form OEu3Mo tetrahedra that share corners with two equivalent O(1)Eu3Mo tetrahedra, corners with four equivalent O(6)Eu4 tetrahedra, and  an edgeedge with one O(6)Eu4 tetrahedra. In the sixth O site, O(2) is bonded in a 4-coordinate geometry to one Eu(1), one Eu(2), one Eu(3), and one Mo(1) atom. is represented by the CIF card [CIF]
data_Eu2MoO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.435
_cell_length_b   10.025
_cell_length_c   10.025
_cell_angle_alpha   68.192
_cell_angle_beta   75.413
_cell_angle_gamma   75.413
_symmetry_Int_Tables_number   1
_cell_volume   483.126
_cell_formula_units_Z   4
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  0.250  0.367  0.633  1.0
  Eu  Eu1  1  0.750  0.633  0.367  1.0
  Eu  Eu2  1  0.250  0.887  0.113  1.0
  Eu  Eu3  1  0.750  0.113  0.887  1.0
  Eu  Eu4  1  0.388  0.947  0.710  1.0
  Eu  Eu5  1  0.612  0.053  0.290  1.0
  Eu  Eu6  1  0.112  0.290  0.053  1.0
  Eu  Eu7  1  0.888  0.710  0.947  1.0
  Mo  Mo8  1  0.062  0.798  0.510  1.0
  Mo  Mo9  1  0.938  0.202  0.490  1.0
  Mo  Mo10  1  0.438  0.490  0.202  1.0
  Mo  Mo11  1  0.562  0.510  0.798  1.0
  O  O12  1  0.085  0.162  0.688  1.0
  O  O13  1  0.915  0.838  0.312  1.0
  O  O14  1  0.415  0.312  0.838  1.0
  O  O15  1  0.585  0.688  0.162  1.0
  O  O16  1  0.362  0.828  0.383  1.0
  O  O17  1  0.638  0.172  0.617  1.0
  O  O18  1  0.138  0.617  0.172  1.0
  O  O19  1  0.862  0.383  0.828  1.0
  O  O20  1  0.137  0.784  0.679  1.0
  O  O21  1  0.863  0.216  0.321  1.0
  O  O22  1  0.363  0.321  0.216  1.0
  O  O23  1  0.637  0.679  0.784  1.0
  O  O24  1  0.231  0.065  0.478  1.0
  O  O25  1  0.769  0.935  0.522  1.0
  O  O26  1  0.269  0.522  0.935  1.0
  O  O27  1  0.731  0.478  0.065  1.0
  O  O28  1  0.012  0.618  0.545  1.0
  O  O29  1  0.988  0.382  0.455  1.0
  O  O30  1  0.488  0.455  0.382  1.0
  O  O31  1  0.512  0.545  0.618  1.0
  O  O32  1  0.573  0.921  0.896  1.0
  O  O33  1  0.427  0.079  0.104  1.0
  O  O34  1  0.927  0.104  0.079  1.0
  O  O35  1  0.073  0.896  0.921  1.0
[/CIF]
.
The material structure described by Eu2O3.MoO3 crystallizes in the monoclinic C2/c space group. There are three inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), and four equivalent O(5) atoms. In the second Eu site, Eu(2) is bonded in a distorted body-centered cubic geometry to two equivalent O(1), two equivalent O(2), and four equivalent O(6) atoms. In the third Eu site, Eu(3) is bonded in a 8-coordinate geometry to one O(1), one O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(6) atoms. Mo(1) is bonded in a distorted trigonal bipyramidal geometry to one O(1), one O(2), one O(3), one O(4), and one O(5) atom. There are six inequivalent O sites. In the first O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Eu(3) and one Mo(1) atom. In the second O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Eu(3) and one Mo(1) atom. In the third O site, O(5) is bonded in a 3-coordinate geometry to two equivalent Eu(1) and one Mo(1) atom. In the fourth O site, O(6) is bonded to two equivalent Eu(2) and two equivalent Eu(3) atoms to form OEu4 tetrahedra that share corners with two equivalent O(6)Eu4 tetrahedra, corners with four equivalent O(1)Eu3Mo tetrahedra,  an edgeedge with one O(1)Eu3Mo tetrahedra, and edges with three equivalent O(6)Eu4 tetrahedra. In the fifth O site, O(1) is bonded to one Eu(1), one Eu(2), one Eu(3), and one Mo(1) atom to form OEu3Mo tetrahedra that share corners with two equivalent O(1)Eu3Mo tetrahedra, corners with four equivalent O(6)Eu4 tetrahedra, and  an edgeedge with one O(6)Eu4 tetrahedra. In the sixth O site, O(2) is bonded in a 4-coordinate geometry to one Eu(1), one Eu(2), one Eu(3), and one Mo(1) atom. is represented by the CIF card [CIF]
data_Eu2MoO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.435
_cell_length_b   10.025
_cell_length_c   10.025
_cell_angle_alpha   68.192
_cell_angle_beta   75.413
_cell_angle_gamma   75.413
_symmetry_Int_Tables_number   1
_cell_volume   483.126
_cell_formula_units_Z   4
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  0.250  0.367  0.633  1.0
  Eu  Eu1  1  0.750  0.633  0.367  1.0
  Eu  Eu2  1  0.250  0.887  0.113  1.0
  Eu  Eu3  1  0.750  0.113  0.887  1.0
  Eu  Eu4  1  0.388  0.947  0.710  1.0
  Eu  Eu5  1  0.612  0.053  0.290  1.0
  Eu  Eu6  1  0.112  0.290  0.053  1.0
  Eu  Eu7  1  0.888  0.710  0.947  1.0
  Mo  Mo8  1  0.062  0.798  0.510  1.0
  Mo  Mo9  1  0.938  0.202  0.490  1.0
  Mo  Mo10  1  0.438  0.490  0.202  1.0
  Mo  Mo11  1  0.562  0.510  0.798  1.0
  O  O12  1  0.085  0.162  0.688  1.0
  O  O13  1  0.915  0.838  0.312  1.0
  O  O14  1  0.415  0.312  0.838  1.0
  O  O15  1  0.585  0.688  0.162  1.0
  O  O16  1  0.362  0.828  0.383  1.0
  O  O17  1  0.638  0.172  0.617  1.0
  O  O18  1  0.138  0.617  0.172  1.0
  O  O19  1  0.862  0.383  0.828  1.0
  O  O20  1  0.137  0.784  0.679  1.0
  O  O21  1  0.863  0.216  0.321  1.0
  O  O22  1  0.363  0.321  0.216  1.0
  O  O23  1  0.637  0.679  0.784  1.0
  O  O24  1  0.231  0.065  0.478  1.0
  O  O25  1  0.769  0.935  0.522  1.0
  O  O26  1  0.269  0.522  0.935  1.0
  O  O27  1  0.731  0.478  0.065  1.0
  O  O28  1  0.012  0.618  0.545  1.0
  O  O29  1  0.988  0.382  0.455  1.0
  O  O30  1  0.488  0.455  0.382  1.0
  O  O31  1  0.512  0.545  0.618  1.0
  O  O32  1  0.573  0.921  0.896  1.0
  O  O33  1  0.427  0.079  0.104  1.0
  O  O34  1  0.927  0.104  0.079  1.0
  O  O35  1  0.073  0.896  0.921  1.0
[/CIF]
.