The structure described by Rb2LiNd2(WO4)4 is Pb (Zr_0.50 Ti_0.48) O_3-derived structured and crystallizes in the monoclinic C2 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 10-coordinate geometry to two equivalent O(1), two equivalent O(3), two equivalent O(5), two equivalent O(7), and two equivalent O(8) atoms. In the second Rb site, Rb(2) is bonded in a 10-coordinate geometry to two equivalent O(2), two equivalent O(4), two equivalent O(5), two equivalent O(6), and two equivalent O(8) atoms. Li(1) is bonded in a 4-coordinate geometry to two equivalent O(1), two equivalent O(5), and two equivalent O(6) atoms. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 6-coordinate geometry to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms. In the second Nd site, Nd(2) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(3), and two equivalent O(7) atoms. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(2), one O(3), one O(5), one O(6), and one O(8) atom to form a mixture of distorted edge and corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 37-38°. In the second W site, W(2) is bonded to one O(1), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form a mixture of distorted edge and corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 37-38°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Rb(1), one Li(1), one Nd(2), one W(1), and one W(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Rb(2), one Nd(1), and one W(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Rb(1), one Nd(2), and one W(1) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one Rb(2), one Nd(1), and one W(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Rb(1), one Rb(2), one Li(1), one W(1), and one W(2) atom. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one Rb(2), one Li(1), one Nd(1), one W(1), and one W(2) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Rb(1), one Nd(2), and one W(2) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Rb(1), one Rb(2), one W(1), and one W(2) atom. is represented by the CIF file [CIF]
data_Rb2LiNd2(WO4)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.925
_cell_length_b   7.925
_cell_length_c   7.619
_cell_angle_alpha   62.023
_cell_angle_beta   62.023
_cell_angle_gamma   88.618
_symmetry_Int_Tables_number   1
_cell_volume   361.229
_cell_formula_units_Z   1
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
  Rb  Rb0  1  0.794  0.206  0.750  1.0
  Rb  Rb1  1  0.210  0.790  0.250  1.0
  Li  Li2  1  0.506  0.494  0.750  1.0
  Nd  Nd3  1  0.222  0.778  0.750  1.0
  Nd  Nd4  1  0.772  0.228  0.250  1.0
  W  W5  1  0.694  0.711  0.799  1.0
  W  W6  1  0.705  0.695  0.291  1.0
  W  W7  1  0.305  0.295  0.209  1.0
  W  W8  1  0.289  0.306  0.701  1.0
  O  O9  1  0.586  0.378  0.473  1.0
  O  O10  1  0.231  0.040  0.809  1.0
  O  O11  1  0.059  0.365  0.865  1.0
  O  O12  1  0.365  0.064  0.367  1.0
  O  O13  1  0.756  0.643  0.547  1.0
  O  O14  1  0.356  0.244  0.953  1.0
  O  O15  1  0.635  0.941  0.635  1.0
  O  O16  1  0.414  0.622  0.539  1.0
  O  O17  1  0.042  0.236  0.311  1.0
  O  O18  1  0.764  0.958  0.189  1.0
  O  O19  1  0.378  0.586  0.961  1.0
  O  O20  1  0.936  0.635  0.133  1.0
  O  O21  1  0.251  0.368  0.440  1.0
  O  O22  1  0.632  0.749  0.060  1.0
  O  O23  1  0.960  0.769  0.691  1.0
  O  O24  1  0.622  0.414  0.027  1.0
[/CIF]
.
The structure described by Rb2LiNd2(WO4)4 is Pb (Zr_0.50 Ti_0.48) O_3-derived structured and crystallizes in the monoclinic C2 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 10-coordinate geometry to two equivalent O(1), two equivalent O(3), two equivalent O(5), two equivalent O(7), and two equivalent O(8) atoms. In the second Rb site, Rb(2) is bonded in a 10-coordinate geometry to two equivalent O(2), two equivalent O(4), two equivalent O(5), two equivalent O(6), and two equivalent O(8) atoms. Li(1) is bonded in a 4-coordinate geometry to two equivalent O(1), two equivalent O(5), and two equivalent O(6) atoms. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 6-coordinate geometry to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms. In the second Nd site, Nd(2) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(3), and two equivalent O(7) atoms. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(2), one O(3), one O(5), one O(6), and one O(8) atom to form a mixture of distorted edge and corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 37-38°. In the second W site, W(2) is bonded to one O(1), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form a mixture of distorted edge and corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 37-38°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Rb(1), one Li(1), one Nd(2), one W(1), and one W(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Rb(2), one Nd(1), and one W(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Rb(1), one Nd(2), and one W(1) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one Rb(2), one Nd(1), and one W(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Rb(1), one Rb(2), one Li(1), one W(1), and one W(2) atom. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one Rb(2), one Li(1), one Nd(1), one W(1), and one W(2) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Rb(1), one Nd(2), and one W(2) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Rb(1), one Rb(2), one W(1), and one W(2) atom. is represented by the CIF file [CIF]
data_Rb2LiNd2(WO4)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.925
_cell_length_b   7.925
_cell_length_c   7.619
_cell_angle_alpha   62.023
_cell_angle_beta   62.023
_cell_angle_gamma   88.618
_symmetry_Int_Tables_number   1
_cell_volume   361.229
_cell_formula_units_Z   1
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
  Rb  Rb0  1  0.794  0.206  0.750  1.0
  Rb  Rb1  1  0.210  0.790  0.250  1.0
  Li  Li2  1  0.506  0.494  0.750  1.0
  Nd  Nd3  1  0.222  0.778  0.750  1.0
  Nd  Nd4  1  0.772  0.228  0.250  1.0
  W  W5  1  0.694  0.711  0.799  1.0
  W  W6  1  0.705  0.695  0.291  1.0
  W  W7  1  0.305  0.295  0.209  1.0
  W  W8  1  0.289  0.306  0.701  1.0
  O  O9  1  0.586  0.378  0.473  1.0
  O  O10  1  0.231  0.040  0.809  1.0
  O  O11  1  0.059  0.365  0.865  1.0
  O  O12  1  0.365  0.064  0.367  1.0
  O  O13  1  0.756  0.643  0.547  1.0
  O  O14  1  0.356  0.244  0.953  1.0
  O  O15  1  0.635  0.941  0.635  1.0
  O  O16  1  0.414  0.622  0.539  1.0
  O  O17  1  0.042  0.236  0.311  1.0
  O  O18  1  0.764  0.958  0.189  1.0
  O  O19  1  0.378  0.586  0.961  1.0
  O  O20  1  0.936  0.635  0.133  1.0
  O  O21  1  0.251  0.368  0.440  1.0
  O  O22  1  0.632  0.749  0.060  1.0
  O  O23  1  0.960  0.769  0.691  1.0
  O  O24  1  0.622  0.414  0.027  1.0
[/CIF]
.