The structure described by Eu2GeO5 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 7-coordinate geometry to one O(4), three equivalent O(1), and three equivalent O(5) atoms. In the second Eu site, Eu(2) is bonded in a 8-coordinate geometry to one O(5), two equivalent O(3), two equivalent O(4), and three equivalent O(2) atoms. Ge(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to three equivalent Eu(1) and one Ge(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to three equivalent Eu(2) and one Ge(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Eu(2) and one Ge(1) atom. In the fourth O site, O(4) is bonded to one Eu(1), two equivalent Eu(2), and one Ge(1) atom to form distorted OEu3Ge tetrahedra that share  a cornercorner with one O(5)Eu4 tetrahedra, corners with two equivalent O(4)Eu3Ge tetrahedra, and edges with two equivalent O(5)Eu4 tetrahedra. In the fifth O site, O(5) is bonded to one Eu(2) and three equivalent Eu(1) atoms to form OEu4 tetrahedra that share  a cornercorner with one O(4)Eu3Ge tetrahedra, corners with four equivalent O(5)Eu4 tetrahedra,  an edgeedge with one O(5)Eu4 tetrahedra, and edges with two equivalent O(4)Eu3Ge tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Eu2GeO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.164
_cell_length_b   6.887
_cell_length_c   9.341
_cell_angle_alpha   73.802
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   442.625
_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  0.631  0.265  0.515  1.0
  Eu  Eu1  1  0.867  0.952  0.870  1.0
  Eu  Eu2  1  0.869  0.765  0.515  1.0
  Eu  Eu3  1  0.131  0.235  0.485  1.0
  Eu  Eu4  1  0.133  0.048  0.130  1.0
  Eu  Eu5  1  0.633  0.452  0.870  1.0
  Eu  Eu6  1  0.369  0.735  0.485  1.0
  Eu  Eu7  1  0.367  0.548  0.130  1.0
  Ge  Ge8  1  0.585  0.020  0.195  1.0
  Ge  Ge9  1  0.085  0.480  0.805  1.0
  Ge  Ge10  1  0.415  0.980  0.805  1.0
  Ge  Ge11  1  0.915  0.520  0.195  1.0
  O  O12  1  0.628  0.998  0.386  1.0
  O  O13  1  0.057  0.720  0.094  1.0
  O  O14  1  0.206  0.028  0.881  1.0
  O  O15  1  0.409  0.830  0.217  1.0
  O  O16  1  0.591  0.170  0.783  1.0
  O  O17  1  0.706  0.472  0.119  1.0
  O  O18  1  0.294  0.528  0.881  1.0
  O  O19  1  0.443  0.220  0.094  1.0
  O  O20  1  0.794  0.972  0.119  1.0
  O  O21  1  0.384  0.432  0.394  1.0
  O  O22  1  0.872  0.498  0.386  1.0
  O  O23  1  0.091  0.330  0.217  1.0
  O  O24  1  0.557  0.780  0.906  1.0
  O  O25  1  0.909  0.670  0.783  1.0
  O  O26  1  0.884  0.068  0.606  1.0
  O  O27  1  0.128  0.502  0.614  1.0
  O  O28  1  0.943  0.280  0.906  1.0
  O  O29  1  0.116  0.932  0.394  1.0
  O  O30  1  0.616  0.568  0.606  1.0
  O  O31  1  0.372  0.002  0.614  1.0
[/CIF]
.
The structure described by Eu2GeO5 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 7-coordinate geometry to one O(4), three equivalent O(1), and three equivalent O(5) atoms. In the second Eu site, Eu(2) is bonded in a 8-coordinate geometry to one O(5), two equivalent O(3), two equivalent O(4), and three equivalent O(2) atoms. Ge(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to three equivalent Eu(1) and one Ge(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to three equivalent Eu(2) and one Ge(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Eu(2) and one Ge(1) atom. In the fourth O site, O(4) is bonded to one Eu(1), two equivalent Eu(2), and one Ge(1) atom to form distorted OEu3Ge tetrahedra that share  a cornercorner with one O(5)Eu4 tetrahedra, corners with two equivalent O(4)Eu3Ge tetrahedra, and edges with two equivalent O(5)Eu4 tetrahedra. In the fifth O site, O(5) is bonded to one Eu(2) and three equivalent Eu(1) atoms to form OEu4 tetrahedra that share  a cornercorner with one O(4)Eu3Ge tetrahedra, corners with four equivalent O(5)Eu4 tetrahedra,  an edgeedge with one O(5)Eu4 tetrahedra, and edges with two equivalent O(4)Eu3Ge tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Eu2GeO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.164
_cell_length_b   6.887
_cell_length_c   9.341
_cell_angle_alpha   73.802
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   442.625
_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  0.631  0.265  0.515  1.0
  Eu  Eu1  1  0.867  0.952  0.870  1.0
  Eu  Eu2  1  0.869  0.765  0.515  1.0
  Eu  Eu3  1  0.131  0.235  0.485  1.0
  Eu  Eu4  1  0.133  0.048  0.130  1.0
  Eu  Eu5  1  0.633  0.452  0.870  1.0
  Eu  Eu6  1  0.369  0.735  0.485  1.0
  Eu  Eu7  1  0.367  0.548  0.130  1.0
  Ge  Ge8  1  0.585  0.020  0.195  1.0
  Ge  Ge9  1  0.085  0.480  0.805  1.0
  Ge  Ge10  1  0.415  0.980  0.805  1.0
  Ge  Ge11  1  0.915  0.520  0.195  1.0
  O  O12  1  0.628  0.998  0.386  1.0
  O  O13  1  0.057  0.720  0.094  1.0
  O  O14  1  0.206  0.028  0.881  1.0
  O  O15  1  0.409  0.830  0.217  1.0
  O  O16  1  0.591  0.170  0.783  1.0
  O  O17  1  0.706  0.472  0.119  1.0
  O  O18  1  0.294  0.528  0.881  1.0
  O  O19  1  0.443  0.220  0.094  1.0
  O  O20  1  0.794  0.972  0.119  1.0
  O  O21  1  0.384  0.432  0.394  1.0
  O  O22  1  0.872  0.498  0.386  1.0
  O  O23  1  0.091  0.330  0.217  1.0
  O  O24  1  0.557  0.780  0.906  1.0
  O  O25  1  0.909  0.670  0.783  1.0
  O  O26  1  0.884  0.068  0.606  1.0
  O  O27  1  0.128  0.502  0.614  1.0
  O  O28  1  0.943  0.280  0.906  1.0
  O  O29  1  0.116  0.932  0.394  1.0
  O  O30  1  0.616  0.568  0.606  1.0
  O  O31  1  0.372  0.002  0.614  1.0
[/CIF]
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