The compound described by EuNbO4 crystallizes in the monoclinic C2/c space group. Eu(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(2) atoms. Nb(1) is bonded in a 6-coordinate geometry to two equivalent O(1) and four equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Eu(1) and one Nb(1) atom. 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_EuNbO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.625
_cell_length_b   6.625
_cell_length_c   5.166
_cell_angle_alpha   69.004
_cell_angle_beta   69.004
_cell_angle_gamma   114.242
_symmetry_Int_Tables_number   1
_cell_volume   155.325
_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  0.129  0.871  0.750  1.0
  Eu  Eu1  1  0.871  0.129  0.250  1.0
  Nb  Nb2  1  0.606  0.394  0.750  1.0
  Nb  Nb3  1  0.394  0.606  0.250  1.0
  O  O4  1  0.130  0.553  0.165  1.0
  O  O5  1  0.447  0.870  0.335  1.0
  O  O6  1  0.870  0.447  0.835  1.0
  O  O7  1  0.553  0.130  0.665  1.0
  O  O8  1  0.711  0.772  0.800  1.0
  O  O9  1  0.228  0.289  0.700  1.0
  O  O10  1  0.289  0.228  0.200  1.0
  O  O11  1  0.772  0.711  0.300  1.0
[/CIF]
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The compound described by EuNbO4 crystallizes in the monoclinic C2/c space group. Eu(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(2) atoms. Nb(1) is bonded in a 6-coordinate geometry to two equivalent O(1) and four equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Eu(1) and one Nb(1) atom. 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_EuNbO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.625
_cell_length_b   6.625
_cell_length_c   5.166
_cell_angle_alpha   69.004
_cell_angle_beta   69.004
_cell_angle_gamma   114.242
_symmetry_Int_Tables_number   1
_cell_volume   155.325
_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  0.129  0.871  0.750  1.0
  Eu  Eu1  1  0.871  0.129  0.250  1.0
  Nb  Nb2  1  0.606  0.394  0.750  1.0
  Nb  Nb3  1  0.394  0.606  0.250  1.0
  O  O4  1  0.130  0.553  0.165  1.0
  O  O5  1  0.447  0.870  0.335  1.0
  O  O6  1  0.870  0.447  0.835  1.0
  O  O7  1  0.553  0.130  0.665  1.0
  O  O8  1  0.711  0.772  0.800  1.0
  O  O9  1  0.228  0.289  0.700  1.0
  O  O10  1  0.289  0.228  0.200  1.0
  O  O11  1  0.772  0.711  0.300  1.0
[/CIF]
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