The material structure described by Eu3MoO7 crystallizes in the orthorhombic P2_12_12_1 space group. There are three inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 7-coordinate geometry to one O(1), one O(5), one O(6), two equivalent O(2), and two equivalent O(7) atoms. In the second Eu site, Eu(2) is bonded in a 7-coordinate geometry to one O(1), one O(3), one O(4), one O(5), one O(6), and two equivalent O(2) atoms. In the third Eu site, Eu(3) is bonded to one O(1), one O(3), one O(4), one O(5), one O(6), and two equivalent O(7) atoms to form distorted EuO7 pentagonal bipyramids that share corners with two equivalent Mo(1)O6 octahedra, corners with two equivalent Eu(3)O7 pentagonal bipyramids, and edges with two equivalent Mo(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 35-45°. Mo(1) is bonded to one O(1), one O(4), one O(5), one O(6), and two equivalent O(3) atoms to form MoO6 octahedra that share corners with two equivalent Mo(1)O6 octahedra, corners with two equivalent Eu(3)O7 pentagonal bipyramids, and edges with two equivalent Eu(3)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 31°. There are seven inequivalent O sites. In the first O site, O(5) is bonded to one Eu(1), one Eu(2), one Eu(3), and one Mo(1) atom to form distorted OEu3Mo tetrahedra that share corners with two equivalent O(2)Eu4 tetrahedra, corners with two equivalent O(7)Eu4 tetrahedra,  an edgeedge with one O(2)Eu4 tetrahedra,  an edgeedge with one O(7)Eu4 tetrahedra, and edges with two equivalent O(1)Eu3Mo trigonal pyramids. In the second O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to one Eu(1), one Eu(2), one Eu(3), and one Mo(1) atom. In the third O site, O(7) is bonded to two equivalent Eu(1) and two equivalent Eu(3) atoms to form OEu4 tetrahedra that share corners with two equivalent O(5)Eu3Mo tetrahedra, corners with two equivalent O(2)Eu4 tetrahedra, corners with four equivalent O(7)Eu4 tetrahedra, corners with two equivalent O(1)Eu3Mo trigonal pyramids,  an edgeedge with one O(5)Eu3Mo tetrahedra,  an edgeedge with one O(2)Eu4 tetrahedra, and  an edgeedge with one O(1)Eu3Mo trigonal pyramid. In the fourth O site, O(1) is bonded to one Eu(1), one Eu(2), one Eu(3), and one Mo(1) atom to form distorted OEu3Mo trigonal pyramids that share corners with two equivalent O(2)Eu4 tetrahedra, corners with two equivalent O(7)Eu4 tetrahedra,  an edgeedge with one O(2)Eu4 tetrahedra,  an edgeedge with one O(7)Eu4 tetrahedra, and edges with two equivalent O(5)Eu3Mo tetrahedra. In the fifth O site, O(2) is bonded to two equivalent Eu(1) and two equivalent Eu(2) atoms to form OEu4 tetrahedra that share corners with two equivalent O(5)Eu3Mo tetrahedra, corners with two equivalent O(7)Eu4 tetrahedra, corners with four equivalent O(2)Eu4 tetrahedra, corners with two equivalent O(1)Eu3Mo trigonal pyramids,  an edgeedge with one O(5)Eu3Mo tetrahedra,  an edgeedge with one O(7)Eu4 tetrahedra, and  an edgeedge with one O(1)Eu3Mo trigonal pyramid. In the sixth O site, O(3) is bonded in a 4-coordinate geometry to one Eu(2), one Eu(3), and two equivalent Mo(1) atoms. In the seventh O site, O(4) is bonded in a 3-coordinate geometry to one Eu(2), one Eu(3), and one Mo(1) atom. is represented by the CIF file [CIF]
data_Eu3MoO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.553
_cell_length_b   7.696
_cell_length_c   10.888
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   632.946
_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  0.526  0.005  0.254  1.0
  Eu  Eu1  1  0.974  0.995  0.754  1.0
  Eu  Eu2  1  0.474  0.505  0.246  1.0
  Eu  Eu3  1  0.026  0.495  0.746  1.0
  Eu  Eu4  1  0.213  0.256  0.477  1.0
  Eu  Eu5  1  0.287  0.744  0.977  1.0
  Eu  Eu6  1  0.787  0.756  0.023  1.0
  Eu  Eu7  1  0.713  0.244  0.523  1.0
  Eu  Eu8  1  0.203  0.250  0.015  1.0
  Eu  Eu9  1  0.297  0.750  0.515  1.0
  Eu  Eu10  1  0.797  0.750  0.485  1.0
  Eu  Eu11  1  0.703  0.250  0.985  1.0
  Mo  Mo12  1  0.004  0.017  0.249  1.0
  Mo  Mo13  1  0.496  0.983  0.749  1.0
  Mo  Mo14  1  0.996  0.517  0.251  1.0
  Mo  Mo15  1  0.504  0.483  0.751  1.0
  O  O16  1  0.176  0.532  0.124  1.0
  O  O17  1  0.324  0.468  0.624  1.0
  O  O18  1  0.824  0.032  0.376  1.0
  O  O19  1  0.676  0.968  0.876  1.0
  O  O20  1  0.485  0.258  0.381  1.0
  O  O21  1  0.015  0.742  0.881  1.0
  O  O22  1  0.515  0.758  0.119  1.0
  O  O23  1  0.985  0.242  0.619  1.0
  O  O24  1  0.069  0.249  0.242  1.0
  O  O25  1  0.431  0.751  0.742  1.0
  O  O26  1  0.931  0.749  0.258  1.0
  O  O27  1  0.569  0.251  0.758  1.0
  O  O28  1  0.358  0.048  0.612  1.0
  O  O29  1  0.142  0.952  0.112  1.0
  O  O30  1  0.642  0.548  0.888  1.0
  O  O31  1  0.858  0.452  0.388  1.0
  O  O32  1  0.200  0.535  0.366  1.0
  O  O33  1  0.300  0.465  0.866  1.0
  O  O34  1  0.800  0.035  0.134  1.0
  O  O35  1  0.700  0.965  0.634  1.0
  O  O36  1  0.315  0.035  0.865  1.0
  O  O37  1  0.185  0.965  0.365  1.0
  O  O38  1  0.685  0.535  0.635  1.0
  O  O39  1  0.815  0.465  0.135  1.0
  O  O40  1  0.465  0.246  0.115  1.0
  O  O41  1  0.035  0.754  0.615  1.0
  O  O42  1  0.535  0.746  0.385  1.0
  O  O43  1  0.965  0.254  0.885  1.0
[/CIF]
.
The material structure described by Eu3MoO7 crystallizes in the orthorhombic P2_12_12_1 space group. There are three inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 7-coordinate geometry to one O(1), one O(5), one O(6), two equivalent O(2), and two equivalent O(7) atoms. In the second Eu site, Eu(2) is bonded in a 7-coordinate geometry to one O(1), one O(3), one O(4), one O(5), one O(6), and two equivalent O(2) atoms. In the third Eu site, Eu(3) is bonded to one O(1), one O(3), one O(4), one O(5), one O(6), and two equivalent O(7) atoms to form distorted EuO7 pentagonal bipyramids that share corners with two equivalent Mo(1)O6 octahedra, corners with two equivalent Eu(3)O7 pentagonal bipyramids, and edges with two equivalent Mo(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 35-45°. Mo(1) is bonded to one O(1), one O(4), one O(5), one O(6), and two equivalent O(3) atoms to form MoO6 octahedra that share corners with two equivalent Mo(1)O6 octahedra, corners with two equivalent Eu(3)O7 pentagonal bipyramids, and edges with two equivalent Eu(3)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 31°. There are seven inequivalent O sites. In the first O site, O(5) is bonded to one Eu(1), one Eu(2), one Eu(3), and one Mo(1) atom to form distorted OEu3Mo tetrahedra that share corners with two equivalent O(2)Eu4 tetrahedra, corners with two equivalent O(7)Eu4 tetrahedra,  an edgeedge with one O(2)Eu4 tetrahedra,  an edgeedge with one O(7)Eu4 tetrahedra, and edges with two equivalent O(1)Eu3Mo trigonal pyramids. In the second O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to one Eu(1), one Eu(2), one Eu(3), and one Mo(1) atom. In the third O site, O(7) is bonded to two equivalent Eu(1) and two equivalent Eu(3) atoms to form OEu4 tetrahedra that share corners with two equivalent O(5)Eu3Mo tetrahedra, corners with two equivalent O(2)Eu4 tetrahedra, corners with four equivalent O(7)Eu4 tetrahedra, corners with two equivalent O(1)Eu3Mo trigonal pyramids,  an edgeedge with one O(5)Eu3Mo tetrahedra,  an edgeedge with one O(2)Eu4 tetrahedra, and  an edgeedge with one O(1)Eu3Mo trigonal pyramid. In the fourth O site, O(1) is bonded to one Eu(1), one Eu(2), one Eu(3), and one Mo(1) atom to form distorted OEu3Mo trigonal pyramids that share corners with two equivalent O(2)Eu4 tetrahedra, corners with two equivalent O(7)Eu4 tetrahedra,  an edgeedge with one O(2)Eu4 tetrahedra,  an edgeedge with one O(7)Eu4 tetrahedra, and edges with two equivalent O(5)Eu3Mo tetrahedra. In the fifth O site, O(2) is bonded to two equivalent Eu(1) and two equivalent Eu(2) atoms to form OEu4 tetrahedra that share corners with two equivalent O(5)Eu3Mo tetrahedra, corners with two equivalent O(7)Eu4 tetrahedra, corners with four equivalent O(2)Eu4 tetrahedra, corners with two equivalent O(1)Eu3Mo trigonal pyramids,  an edgeedge with one O(5)Eu3Mo tetrahedra,  an edgeedge with one O(7)Eu4 tetrahedra, and  an edgeedge with one O(1)Eu3Mo trigonal pyramid. In the sixth O site, O(3) is bonded in a 4-coordinate geometry to one Eu(2), one Eu(3), and two equivalent Mo(1) atoms. In the seventh O site, O(4) is bonded in a 3-coordinate geometry to one Eu(2), one Eu(3), and one Mo(1) atom. is represented by the CIF file [CIF]
data_Eu3MoO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.553
_cell_length_b   7.696
_cell_length_c   10.888
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   632.946
_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  0.526  0.005  0.254  1.0
  Eu  Eu1  1  0.974  0.995  0.754  1.0
  Eu  Eu2  1  0.474  0.505  0.246  1.0
  Eu  Eu3  1  0.026  0.495  0.746  1.0
  Eu  Eu4  1  0.213  0.256  0.477  1.0
  Eu  Eu5  1  0.287  0.744  0.977  1.0
  Eu  Eu6  1  0.787  0.756  0.023  1.0
  Eu  Eu7  1  0.713  0.244  0.523  1.0
  Eu  Eu8  1  0.203  0.250  0.015  1.0
  Eu  Eu9  1  0.297  0.750  0.515  1.0
  Eu  Eu10  1  0.797  0.750  0.485  1.0
  Eu  Eu11  1  0.703  0.250  0.985  1.0
  Mo  Mo12  1  0.004  0.017  0.249  1.0
  Mo  Mo13  1  0.496  0.983  0.749  1.0
  Mo  Mo14  1  0.996  0.517  0.251  1.0
  Mo  Mo15  1  0.504  0.483  0.751  1.0
  O  O16  1  0.176  0.532  0.124  1.0
  O  O17  1  0.324  0.468  0.624  1.0
  O  O18  1  0.824  0.032  0.376  1.0
  O  O19  1  0.676  0.968  0.876  1.0
  O  O20  1  0.485  0.258  0.381  1.0
  O  O21  1  0.015  0.742  0.881  1.0
  O  O22  1  0.515  0.758  0.119  1.0
  O  O23  1  0.985  0.242  0.619  1.0
  O  O24  1  0.069  0.249  0.242  1.0
  O  O25  1  0.431  0.751  0.742  1.0
  O  O26  1  0.931  0.749  0.258  1.0
  O  O27  1  0.569  0.251  0.758  1.0
  O  O28  1  0.358  0.048  0.612  1.0
  O  O29  1  0.142  0.952  0.112  1.0
  O  O30  1  0.642  0.548  0.888  1.0
  O  O31  1  0.858  0.452  0.388  1.0
  O  O32  1  0.200  0.535  0.366  1.0
  O  O33  1  0.300  0.465  0.866  1.0
  O  O34  1  0.800  0.035  0.134  1.0
  O  O35  1  0.700  0.965  0.634  1.0
  O  O36  1  0.315  0.035  0.865  1.0
  O  O37  1  0.185  0.965  0.365  1.0
  O  O38  1  0.685  0.535  0.635  1.0
  O  O39  1  0.815  0.465  0.135  1.0
  O  O40  1  0.465  0.246  0.115  1.0
  O  O41  1  0.035  0.754  0.615  1.0
  O  O42  1  0.535  0.746  0.385  1.0
  O  O43  1  0.965  0.254  0.885  1.0
[/CIF]
.