The compound described by NdMo2SbO9 crystallizes in the monoclinic C2/c space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 8-coordinate geometry to two equivalent O(5), two equivalent O(6), two equivalent O(8), and two equivalent O(9) atoms. In the second Nd site, Nd(2) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(3), two equivalent O(4), and two equivalent O(7) atoms. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a tetrahedral geometry to one O(1), one O(7), one O(8), and one O(9) atom. In the second Mo site, Mo(2) is bonded in a tetrahedral geometry to one O(2), one O(4), one O(5), and one O(6) atom. Sb(1) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(7), and two equivalent O(3) atoms. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Nd(2) and one Mo(1) atom. In the second O site, O(2) is bonded in a linear geometry to one Mo(2) and one Sb(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Nd(2) and two equivalent Sb(1) atoms. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Nd(2) and one Mo(2) atom. In the fifth O site, O(5) is bonded in a linear geometry to one Nd(1) and one Mo(2) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Nd(1) and one Mo(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Nd(2), one Mo(1), and one Sb(1) atom. In the eighth O site, O(8) is bonded in a linear geometry to one Nd(1) and one Mo(1) atom. In the ninth O site, O(9) is bonded in a distorted bent 150 degrees geometry to one Nd(1) and one Mo(1) atom. is represented by the CIF file [CIF]
data_NdSbMo2O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.902
_cell_length_b   9.902
_cell_length_c   11.060
_cell_angle_alpha   68.329
_cell_angle_beta   68.329
_cell_angle_gamma   95.864
_symmetry_Int_Tables_number   1
_cell_volume   900.030
_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
  Nd  Nd0  1  0.876  0.124  0.250  1.0
  Nd  Nd1  1  0.674  0.326  0.750  1.0
  Nd  Nd2  1  0.124  0.876  0.750  1.0
  Nd  Nd3  1  0.326  0.674  0.250  1.0
  Sb  Sb4  1  0.647  0.622  0.962  1.0
  Sb  Sb5  1  0.622  0.647  0.462  1.0
  Sb  Sb6  1  0.378  0.353  0.538  1.0
  Sb  Sb7  1  0.353  0.378  0.038  1.0
  Mo  Mo8  1  0.951  0.741  0.526  1.0
  Mo  Mo9  1  0.741  0.951  0.026  1.0
  Mo  Mo10  1  0.049  0.259  0.474  1.0
  Mo  Mo11  1  0.939  0.565  0.195  1.0
  Mo  Mo12  1  0.435  0.061  0.305  1.0
  Mo  Mo13  1  0.565  0.939  0.695  1.0
  Mo  Mo14  1  0.061  0.435  0.805  1.0
  Mo  Mo15  1  0.259  0.049  0.974  1.0
  O  O16  1  0.297  0.876  0.062  1.0
  O  O17  1  0.213  0.373  0.699  1.0
  O  O18  1  0.627  0.787  0.801  1.0
  O  O19  1  0.541  0.424  0.598  1.0
  O  O20  1  0.912  0.441  0.751  1.0
  O  O21  1  0.985  0.307  0.991  1.0
  O  O22  1  0.860  0.382  0.223  1.0
  O  O23  1  0.219  0.403  0.424  1.0
  O  O24  1  0.382  0.860  0.723  1.0
  O  O25  1  0.088  0.559  0.249  1.0
  O  O26  1  0.403  0.219  0.924  1.0
  O  O27  1  0.693  0.015  0.509  1.0
  O  O28  1  0.904  0.936  0.900  1.0
  O  O29  1  0.459  0.576  0.402  1.0
  O  O30  1  0.936  0.904  0.400  1.0
  O  O31  1  0.096  0.064  0.100  1.0
  O  O32  1  0.618  0.140  0.277  1.0
  O  O33  1  0.140  0.618  0.777  1.0
  O  O34  1  0.576  0.459  0.902  1.0
  O  O35  1  0.226  0.051  0.824  1.0
  O  O36  1  0.781  0.597  0.576  1.0
  O  O37  1  0.441  0.912  0.251  1.0
  O  O38  1  0.597  0.781  0.076  1.0
  O  O39  1  0.015  0.693  0.009  1.0
  O  O40  1  0.949  0.774  0.676  1.0
  O  O41  1  0.373  0.213  0.199  1.0
  O  O42  1  0.424  0.541  0.098  1.0
  O  O43  1  0.559  0.088  0.749  1.0
  O  O44  1  0.051  0.226  0.324  1.0
  O  O45  1  0.307  0.985  0.491  1.0
  O  O46  1  0.124  0.703  0.438  1.0
  O  O47  1  0.876  0.297  0.562  1.0
  O  O48  1  0.774  0.949  0.176  1.0
  O  O49  1  0.064  0.096  0.600  1.0
  O  O50  1  0.787  0.627  0.301  1.0
  O  O51  1  0.703  0.124  0.938  1.0
[/CIF]
.
The compound described by NdMo2SbO9 crystallizes in the monoclinic C2/c space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 8-coordinate geometry to two equivalent O(5), two equivalent O(6), two equivalent O(8), and two equivalent O(9) atoms. In the second Nd site, Nd(2) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(3), two equivalent O(4), and two equivalent O(7) atoms. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a tetrahedral geometry to one O(1), one O(7), one O(8), and one O(9) atom. In the second Mo site, Mo(2) is bonded in a tetrahedral geometry to one O(2), one O(4), one O(5), and one O(6) atom. Sb(1) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(7), and two equivalent O(3) atoms. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Nd(2) and one Mo(1) atom. In the second O site, O(2) is bonded in a linear geometry to one Mo(2) and one Sb(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Nd(2) and two equivalent Sb(1) atoms. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Nd(2) and one Mo(2) atom. In the fifth O site, O(5) is bonded in a linear geometry to one Nd(1) and one Mo(2) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Nd(1) and one Mo(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Nd(2), one Mo(1), and one Sb(1) atom. In the eighth O site, O(8) is bonded in a linear geometry to one Nd(1) and one Mo(1) atom. In the ninth O site, O(9) is bonded in a distorted bent 150 degrees geometry to one Nd(1) and one Mo(1) atom. is represented by the CIF file [CIF]
data_NdSbMo2O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.902
_cell_length_b   9.902
_cell_length_c   11.060
_cell_angle_alpha   68.329
_cell_angle_beta   68.329
_cell_angle_gamma   95.864
_symmetry_Int_Tables_number   1
_cell_volume   900.030
_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
  Nd  Nd0  1  0.876  0.124  0.250  1.0
  Nd  Nd1  1  0.674  0.326  0.750  1.0
  Nd  Nd2  1  0.124  0.876  0.750  1.0
  Nd  Nd3  1  0.326  0.674  0.250  1.0
  Sb  Sb4  1  0.647  0.622  0.962  1.0
  Sb  Sb5  1  0.622  0.647  0.462  1.0
  Sb  Sb6  1  0.378  0.353  0.538  1.0
  Sb  Sb7  1  0.353  0.378  0.038  1.0
  Mo  Mo8  1  0.951  0.741  0.526  1.0
  Mo  Mo9  1  0.741  0.951  0.026  1.0
  Mo  Mo10  1  0.049  0.259  0.474  1.0
  Mo  Mo11  1  0.939  0.565  0.195  1.0
  Mo  Mo12  1  0.435  0.061  0.305  1.0
  Mo  Mo13  1  0.565  0.939  0.695  1.0
  Mo  Mo14  1  0.061  0.435  0.805  1.0
  Mo  Mo15  1  0.259  0.049  0.974  1.0
  O  O16  1  0.297  0.876  0.062  1.0
  O  O17  1  0.213  0.373  0.699  1.0
  O  O18  1  0.627  0.787  0.801  1.0
  O  O19  1  0.541  0.424  0.598  1.0
  O  O20  1  0.912  0.441  0.751  1.0
  O  O21  1  0.985  0.307  0.991  1.0
  O  O22  1  0.860  0.382  0.223  1.0
  O  O23  1  0.219  0.403  0.424  1.0
  O  O24  1  0.382  0.860  0.723  1.0
  O  O25  1  0.088  0.559  0.249  1.0
  O  O26  1  0.403  0.219  0.924  1.0
  O  O27  1  0.693  0.015  0.509  1.0
  O  O28  1  0.904  0.936  0.900  1.0
  O  O29  1  0.459  0.576  0.402  1.0
  O  O30  1  0.936  0.904  0.400  1.0
  O  O31  1  0.096  0.064  0.100  1.0
  O  O32  1  0.618  0.140  0.277  1.0
  O  O33  1  0.140  0.618  0.777  1.0
  O  O34  1  0.576  0.459  0.902  1.0
  O  O35  1  0.226  0.051  0.824  1.0
  O  O36  1  0.781  0.597  0.576  1.0
  O  O37  1  0.441  0.912  0.251  1.0
  O  O38  1  0.597  0.781  0.076  1.0
  O  O39  1  0.015  0.693  0.009  1.0
  O  O40  1  0.949  0.774  0.676  1.0
  O  O41  1  0.373  0.213  0.199  1.0
  O  O42  1  0.424  0.541  0.098  1.0
  O  O43  1  0.559  0.088  0.749  1.0
  O  O44  1  0.051  0.226  0.324  1.0
  O  O45  1  0.307  0.985  0.491  1.0
  O  O46  1  0.124  0.703  0.438  1.0
  O  O47  1  0.876  0.297  0.562  1.0
  O  O48  1  0.774  0.949  0.176  1.0
  O  O49  1  0.064  0.096  0.600  1.0
  O  O50  1  0.787  0.627  0.301  1.0
  O  O51  1  0.703  0.124  0.938  1.0
[/CIF]
.