The material described by CaTbEuNbO6 is Orthorhombic Perovskite-derived structured and crystallizes in the triclinic P-1 space group. Ca(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. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form TbO6 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 Tb site, Tb(2) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form TbO6 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 35-36°. 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 Nb sites. In the first Nb site, Nb(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(6) atoms to form NbO6 octahedra that share corners with two equivalent Tb(2)O6 octahedra and corners with four equivalent Tb(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(5) atoms to form NbO6 octahedra that share corners with two equivalent Tb(1)O6 octahedra and corners with four equivalent Tb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 35-37°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent Ca(1), one Tb(1), one Eu(1), and one Nb(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Ca(1), one Tb(2), two equivalent Eu(1), and one Nb(2) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Ca(1), one Tb(1), two equivalent Eu(1), and one Nb(1) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to two equivalent Ca(1), one Tb(2), one Eu(1), and one Nb(2) atom. In the fifth O site, O(5) is bonded to one Ca(1), one Tb(1), one Eu(1), and one Nb(2) atom to form distorted corner-sharing OCaTbEuNb tetrahedra. In the sixth O site, O(6) is bonded to one Ca(1), one Tb(2), one Eu(1), and one Nb(1) atom to form distorted corner-sharing OCaTbEuNb tetrahedra. is represented by the CIF file [CIF]
data_CaTbEuNbO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.723
_cell_length_b   5.916
_cell_length_c   8.222
_cell_angle_alpha   90.011
_cell_angle_beta   89.627
_cell_angle_gamma   89.903
_symmetry_Int_Tables_number   1
_cell_volume   278.368
_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
  Ca  Ca0  1  0.986  0.051  0.250  1.0
  Ca  Ca1  1  0.014  0.949  0.750  1.0
  Tb  Tb2  1  0.500  0.000  0.000  1.0
  Tb  Tb3  1  0.000  0.500  0.500  1.0
  Eu  Eu4  1  0.514  0.555  0.250  1.0
  Eu  Eu5  1  0.486  0.445  0.750  1.0
  Nb  Nb6  1  0.000  0.500  0.000  1.0
  Nb  Nb7  1  0.500  0.000  0.500  1.0
  O  O8  1  0.180  0.212  0.937  1.0
  O  O9  1  0.318  0.714  0.558  1.0
  O  O10  1  0.820  0.788  0.063  1.0
  O  O11  1  0.682  0.286  0.442  1.0
  O  O12  1  0.288  0.688  0.948  1.0
  O  O13  1  0.212  0.186  0.561  1.0
  O  O14  1  0.712  0.312  0.052  1.0
  O  O15  1  0.788  0.814  0.439  1.0
  O  O16  1  0.385  0.968  0.265  1.0
  O  O17  1  0.104  0.452  0.235  1.0
  O  O18  1  0.615  0.032  0.735  1.0
  O  O19  1  0.896  0.548  0.765  1.0
[/CIF]
.
The material described by CaTbEuNbO6 is Orthorhombic Perovskite-derived structured and crystallizes in the triclinic P-1 space group. Ca(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. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form TbO6 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 Tb site, Tb(2) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form TbO6 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 35-36°. 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 Nb sites. In the first Nb site, Nb(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(6) atoms to form NbO6 octahedra that share corners with two equivalent Tb(2)O6 octahedra and corners with four equivalent Tb(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(5) atoms to form NbO6 octahedra that share corners with two equivalent Tb(1)O6 octahedra and corners with four equivalent Tb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 35-37°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent Ca(1), one Tb(1), one Eu(1), and one Nb(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Ca(1), one Tb(2), two equivalent Eu(1), and one Nb(2) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Ca(1), one Tb(1), two equivalent Eu(1), and one Nb(1) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to two equivalent Ca(1), one Tb(2), one Eu(1), and one Nb(2) atom. In the fifth O site, O(5) is bonded to one Ca(1), one Tb(1), one Eu(1), and one Nb(2) atom to form distorted corner-sharing OCaTbEuNb tetrahedra. In the sixth O site, O(6) is bonded to one Ca(1), one Tb(2), one Eu(1), and one Nb(1) atom to form distorted corner-sharing OCaTbEuNb tetrahedra. is represented by the CIF file [CIF]
data_CaTbEuNbO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.723
_cell_length_b   5.916
_cell_length_c   8.222
_cell_angle_alpha   90.011
_cell_angle_beta   89.627
_cell_angle_gamma   89.903
_symmetry_Int_Tables_number   1
_cell_volume   278.368
_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
  Ca  Ca0  1  0.986  0.051  0.250  1.0
  Ca  Ca1  1  0.014  0.949  0.750  1.0
  Tb  Tb2  1  0.500  0.000  0.000  1.0
  Tb  Tb3  1  0.000  0.500  0.500  1.0
  Eu  Eu4  1  0.514  0.555  0.250  1.0
  Eu  Eu5  1  0.486  0.445  0.750  1.0
  Nb  Nb6  1  0.000  0.500  0.000  1.0
  Nb  Nb7  1  0.500  0.000  0.500  1.0
  O  O8  1  0.180  0.212  0.937  1.0
  O  O9  1  0.318  0.714  0.558  1.0
  O  O10  1  0.820  0.788  0.063  1.0
  O  O11  1  0.682  0.286  0.442  1.0
  O  O12  1  0.288  0.688  0.948  1.0
  O  O13  1  0.212  0.186  0.561  1.0
  O  O14  1  0.712  0.312  0.052  1.0
  O  O15  1  0.788  0.814  0.439  1.0
  O  O16  1  0.385  0.968  0.265  1.0
  O  O17  1  0.104  0.452  0.235  1.0
  O  O18  1  0.615  0.032  0.735  1.0
  O  O19  1  0.896  0.548  0.765  1.0
[/CIF]
.