The material described by SrEuLaNbO6 crystallizes in the triclinic P-1 space group. Sr(1) is bonded in a 8-coordinate geometry to one O(2), one O(3), one O(5), one O(6), two equivalent O(1), and two equivalent O(4) atoms. Eu(1) is bonded in a 8-coordinate geometry to one O(1), one O(4), one O(5), one O(6), two equivalent O(2), and two equivalent O(3) atoms. There are two inequivalent La sites. In the first La site, La(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(6) atoms to form LaO6 octahedra that share corners with two equivalent Nb(2)O6 octahedra and corners with four equivalent Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 32-37°. In the second La site, La(2) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(5) atoms to form LaO6 octahedra that share corners with two equivalent Nb(1)O6 octahedra and corners with four equivalent Nb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 34-35°. There are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form NbO6 octahedra that share corners with two equivalent La(2)O6 octahedra and corners with four equivalent La(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 32-37°. In the second Nb site, Nb(2) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form NbO6 octahedra that share corners with two equivalent La(1)O6 octahedra and corners with four equivalent La(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 34-37°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent Sr(1), one Eu(1), one La(1), and one Nb(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Sr(1), two equivalent Eu(1), one La(2), and one Nb(2) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Sr(1), two equivalent Eu(1), one La(1), and one Nb(1) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to two equivalent Sr(1), one Eu(1), one La(2), and one Nb(2) atom. In the fifth O site, O(5) is bonded in a distorted see-saw-like geometry to one Sr(1), one Eu(1), one La(2), and one Nb(1) atom. In the sixth O site, O(6) is bonded to one Sr(1), one Eu(1), one La(1), and one Nb(2) atom to form distorted corner-sharing OSrLaEuNb tetrahedra. is represented by the CIF card [CIF]
data_SrLaEuNbO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.904
_cell_length_b   6.081
_cell_length_c   8.477
_cell_angle_alpha   89.783
_cell_angle_beta   90.682
_cell_angle_gamma   89.961
_symmetry_Int_Tables_number   1
_cell_volume   304.294
_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
  Sr  Sr0  1  0.987  0.050  0.250  1.0
  Sr  Sr1  1  0.013  0.950  0.750  1.0
  La  La2  1  0.000  0.500  0.000  1.0
  La  La3  1  0.500  0.000  0.500  1.0
  Eu  Eu4  1  0.516  0.553  0.249  1.0
  Eu  Eu5  1  0.484  0.447  0.751  1.0
  Nb  Nb6  1  0.500  0.000  0.000  1.0
  Nb  Nb7  1  0.000  0.500  0.500  1.0
  O  O8  1  0.222  0.183  0.946  1.0
  O  O9  1  0.278  0.681  0.559  1.0
  O  O10  1  0.778  0.817  0.054  1.0
  O  O11  1  0.722  0.319  0.441  1.0
  O  O12  1  0.328  0.719  0.939  1.0
  O  O13  1  0.176  0.222  0.560  1.0
  O  O14  1  0.672  0.281  0.061  1.0
  O  O15  1  0.824  0.778  0.440  1.0
  O  O16  1  0.397  0.955  0.227  1.0
  O  O17  1  0.113  0.462  0.274  1.0
  O  O18  1  0.603  0.045  0.773  1.0
  O  O19  1  0.887  0.538  0.726  1.0
[/CIF]
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The material described by SrEuLaNbO6 crystallizes in the triclinic P-1 space group. Sr(1) is bonded in a 8-coordinate geometry to one O(2), one O(3), one O(5), one O(6), two equivalent O(1), and two equivalent O(4) atoms. Eu(1) is bonded in a 8-coordinate geometry to one O(1), one O(4), one O(5), one O(6), two equivalent O(2), and two equivalent O(3) atoms. There are two inequivalent La sites. In the first La site, La(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(6) atoms to form LaO6 octahedra that share corners with two equivalent Nb(2)O6 octahedra and corners with four equivalent Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 32-37°. In the second La site, La(2) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(5) atoms to form LaO6 octahedra that share corners with two equivalent Nb(1)O6 octahedra and corners with four equivalent Nb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 34-35°. There are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form NbO6 octahedra that share corners with two equivalent La(2)O6 octahedra and corners with four equivalent La(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 32-37°. In the second Nb site, Nb(2) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form NbO6 octahedra that share corners with two equivalent La(1)O6 octahedra and corners with four equivalent La(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 34-37°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent Sr(1), one Eu(1), one La(1), and one Nb(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Sr(1), two equivalent Eu(1), one La(2), and one Nb(2) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Sr(1), two equivalent Eu(1), one La(1), and one Nb(1) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to two equivalent Sr(1), one Eu(1), one La(2), and one Nb(2) atom. In the fifth O site, O(5) is bonded in a distorted see-saw-like geometry to one Sr(1), one Eu(1), one La(2), and one Nb(1) atom. In the sixth O site, O(6) is bonded to one Sr(1), one Eu(1), one La(1), and one Nb(2) atom to form distorted corner-sharing OSrLaEuNb tetrahedra. is represented by the CIF card [CIF]
data_SrLaEuNbO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.904
_cell_length_b   6.081
_cell_length_c   8.477
_cell_angle_alpha   89.783
_cell_angle_beta   90.682
_cell_angle_gamma   89.961
_symmetry_Int_Tables_number   1
_cell_volume   304.294
_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
  Sr  Sr0  1  0.987  0.050  0.250  1.0
  Sr  Sr1  1  0.013  0.950  0.750  1.0
  La  La2  1  0.000  0.500  0.000  1.0
  La  La3  1  0.500  0.000  0.500  1.0
  Eu  Eu4  1  0.516  0.553  0.249  1.0
  Eu  Eu5  1  0.484  0.447  0.751  1.0
  Nb  Nb6  1  0.500  0.000  0.000  1.0
  Nb  Nb7  1  0.000  0.500  0.500  1.0
  O  O8  1  0.222  0.183  0.946  1.0
  O  O9  1  0.278  0.681  0.559  1.0
  O  O10  1  0.778  0.817  0.054  1.0
  O  O11  1  0.722  0.319  0.441  1.0
  O  O12  1  0.328  0.719  0.939  1.0
  O  O13  1  0.176  0.222  0.560  1.0
  O  O14  1  0.672  0.281  0.061  1.0
  O  O15  1  0.824  0.778  0.440  1.0
  O  O16  1  0.397  0.955  0.227  1.0
  O  O17  1  0.113  0.462  0.274  1.0
  O  O18  1  0.603  0.045  0.773  1.0
  O  O19  1  0.887  0.538  0.726  1.0
[/CIF]
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