The crystal structure described by EuNbO3 is Orthorhombic Perovskite-like structured and crystallizes in the orthorhombic Imma space group. Eu(1) is bonded in a 5-coordinate geometry to one O(1) and four equivalent O(2) atoms. Nb(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedral tilt angles range from 18-23°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Eu(1) and two equivalent Nb(1) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Eu(1) and two equivalent Nb(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_EuNbO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.710
_cell_length_b   5.706
_cell_length_c   5.706
_cell_angle_alpha   60.574
_cell_angle_beta   59.979
_cell_angle_gamma   59.980
_symmetry_Int_Tables_number   1
_cell_volume   131.977
_cell_formula_units_Z   2
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  0.259  0.241  1.0
  Eu  Eu1  1  0.250  0.741  0.759  1.0
  Nb  Nb2  1  0.500  1.000  0.000  1.0
  Nb  Nb3  1  1.000  0.500  0.500  1.0
  O  O4  1  0.750  0.822  0.678  1.0
  O  O5  1  0.250  0.178  0.322  1.0
  O  O6  1  0.211  0.289  0.789  1.0
  O  O7  1  0.289  0.711  0.211  1.0
  O  O8  1  0.711  0.289  0.789  1.0
  O  O9  1  0.789  0.711  0.211  1.0
[/CIF]
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The crystal structure described by EuNbO3 is Orthorhombic Perovskite-like structured and crystallizes in the orthorhombic Imma space group. Eu(1) is bonded in a 5-coordinate geometry to one O(1) and four equivalent O(2) atoms. Nb(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedral tilt angles range from 18-23°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Eu(1) and two equivalent Nb(1) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Eu(1) and two equivalent Nb(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_EuNbO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.710
_cell_length_b   5.706
_cell_length_c   5.706
_cell_angle_alpha   60.574
_cell_angle_beta   59.979
_cell_angle_gamma   59.980
_symmetry_Int_Tables_number   1
_cell_volume   131.977
_cell_formula_units_Z   2
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  0.259  0.241  1.0
  Eu  Eu1  1  0.250  0.741  0.759  1.0
  Nb  Nb2  1  0.500  1.000  0.000  1.0
  Nb  Nb3  1  1.000  0.500  0.500  1.0
  O  O4  1  0.750  0.822  0.678  1.0
  O  O5  1  0.250  0.178  0.322  1.0
  O  O6  1  0.211  0.289  0.789  1.0
  O  O7  1  0.289  0.711  0.211  1.0
  O  O8  1  0.711  0.289  0.789  1.0
  O  O9  1  0.789  0.711  0.211  1.0
[/CIF]
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