The crystal structure described by EuNiO3 is Orthorhombic Perovskite structured and crystallizes in the orthorhombic Pnma space group. Eu(1) is bonded in a 8-coordinate geometry to two equivalent O(2) and six equivalent O(1) atoms. Ni(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form corner-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles range from 21-25°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to three equivalent Eu(1) and two equivalent Ni(1) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Eu(1) and two equivalent Ni(1) atoms. is represented by the CIF card [CIF]
data_EuNiO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.330
_cell_length_b   5.320
_cell_length_c   7.584
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   215.036
_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  0.004  0.964  0.750  1.0
  Eu  Eu1  1  0.504  0.536  0.250  1.0
  Eu  Eu2  1  0.496  0.464  0.750  1.0
  Eu  Eu3  1  0.996  0.036  0.250  1.0
  Ni  Ni4  1  0.500  0.000  0.500  1.0
  Ni  Ni5  1  0.000  0.500  0.500  1.0
  Ni  Ni6  1  0.000  0.500  0.000  1.0
  Ni  Ni7  1  0.500  0.000  0.000  1.0
  O  O8  1  0.706  0.295  0.467  1.0
  O  O9  1  0.206  0.205  0.533  1.0
  O  O10  1  0.794  0.795  0.033  1.0
  O  O11  1  0.294  0.705  0.967  1.0
  O  O12  1  0.294  0.705  0.533  1.0
  O  O13  1  0.794  0.795  0.467  1.0
  O  O14  1  0.206  0.205  0.967  1.0
  O  O15  1  0.706  0.295  0.033  1.0
  O  O16  1  0.065  0.493  0.250  1.0
  O  O17  1  0.565  0.007  0.750  1.0
  O  O18  1  0.435  0.993  0.250  1.0
  O  O19  1  0.935  0.507  0.750  1.0
[/CIF]
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The crystal structure described by EuNiO3 is Orthorhombic Perovskite structured and crystallizes in the orthorhombic Pnma space group. Eu(1) is bonded in a 8-coordinate geometry to two equivalent O(2) and six equivalent O(1) atoms. Ni(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form corner-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles range from 21-25°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to three equivalent Eu(1) and two equivalent Ni(1) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Eu(1) and two equivalent Ni(1) atoms. is represented by the CIF card [CIF]
data_EuNiO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.330
_cell_length_b   5.320
_cell_length_c   7.584
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   215.036
_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  0.004  0.964  0.750  1.0
  Eu  Eu1  1  0.504  0.536  0.250  1.0
  Eu  Eu2  1  0.496  0.464  0.750  1.0
  Eu  Eu3  1  0.996  0.036  0.250  1.0
  Ni  Ni4  1  0.500  0.000  0.500  1.0
  Ni  Ni5  1  0.000  0.500  0.500  1.0
  Ni  Ni6  1  0.000  0.500  0.000  1.0
  Ni  Ni7  1  0.500  0.000  0.000  1.0
  O  O8  1  0.706  0.295  0.467  1.0
  O  O9  1  0.206  0.205  0.533  1.0
  O  O10  1  0.794  0.795  0.033  1.0
  O  O11  1  0.294  0.705  0.967  1.0
  O  O12  1  0.294  0.705  0.533  1.0
  O  O13  1  0.794  0.795  0.467  1.0
  O  O14  1  0.206  0.205  0.967  1.0
  O  O15  1  0.706  0.295  0.033  1.0
  O  O16  1  0.065  0.493  0.250  1.0
  O  O17  1  0.565  0.007  0.750  1.0
  O  O18  1  0.435  0.993  0.250  1.0
  O  O19  1  0.935  0.507  0.750  1.0
[/CIF]
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