The compound described by Nd2Mo4O15 crystallizes in the triclinic P-1 space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded to one O(1), one O(11), one O(12), one O(14), one O(3), one O(4), and one O(9) atom to form distorted NdO7 pentagonal bipyramids that share  a cornercorner with one Mo(1)O4 tetrahedra, corners with two equivalent Mo(3)O4 tetrahedra, and corners with three equivalent Mo(2)O4 tetrahedra. In the second Nd site, Nd(2) is bonded in a 8-coordinate geometry to one O(10), one O(13), one O(15), one O(3), one O(4), one O(6), one O(7), and one O(9) atom. There are four inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(15), one O(2), one O(5), and one O(9) atom to form MoO4 tetrahedra that share  a cornercorner with one Nd(1)O7 pentagonal bipyramid. In the second Mo site, Mo(2) is bonded to one O(11), one O(13), one O(14), and one O(3) atom to form MoO4 tetrahedra that share corners with three equivalent Nd(1)O7 pentagonal bipyramids. In the third Mo site, Mo(3) is bonded to one O(10), one O(12), one O(4), and one O(7) atom to form MoO4 tetrahedra that share corners with two equivalent Nd(1)O7 pentagonal bipyramids. In the fourth Mo site, Mo(4) is bonded in a 6-coordinate geometry to one O(2), one O(5), one O(6), one O(8), and two equivalent O(1) atoms. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Nd(1) and two equivalent Mo(4) atoms. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Mo(1) and one Mo(4) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Nd(1), one Nd(2), and one Mo(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Nd(1), one Nd(2), and one Mo(3) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Mo(1) and one Mo(4) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Nd(2) and one Mo(4) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to one Nd(2) and one Mo(3) atom. In the eighth O site, O(8) is bonded in a single-bond geometry to one Mo(4) atom. In the ninth O site, O(9) is bonded in a 1-coordinate geometry to one Nd(1), one Nd(2), and one Mo(1) atom. In the tenth O site, O(10) is bonded in a linear geometry to one Nd(2) and one Mo(3) atom. In the eleventh O site, O(11) is bonded in a linear geometry to one Nd(1) and one Mo(2) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Nd(1) and one Mo(3) atom. In the thirteenth O site, O(13) is bonded in a bent 150 degrees geometry to one Nd(2) and one Mo(2) atom. In the fourteenth O site, O(14) is bonded in a linear geometry to one Nd(1) and one Mo(2) atom. In the fifteenth O site, O(15) is bonded in a distorted bent 150 degrees geometry to one Nd(2) and one Mo(1) atom. is represented by the CIF file [CIF]
data_Nd2Mo4O15
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.379
_cell_length_b   7.515
_cell_length_c   11.724
_cell_angle_alpha   88.752
_cell_angle_beta   84.220
_cell_angle_gamma   83.846
_symmetry_Int_Tables_number   1
_cell_volume   643.071
_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
  Nd  Nd0  1  0.753  0.589  0.776  1.0
  Nd  Nd1  1  0.247  0.411  0.224  1.0
  Nd  Nd2  1  0.319  0.911  0.776  1.0
  Nd  Nd3  1  0.681  0.089  0.224  1.0
  Mo  Mo4  1  0.561  0.747  0.471  1.0
  Mo  Mo5  1  0.439  0.253  0.529  1.0
  Mo  Mo6  1  0.272  0.430  0.871  1.0
  Mo  Mo7  1  0.728  0.570  0.129  1.0
  Mo  Mo8  1  0.769  0.074  0.871  1.0
  Mo  Mo9  1  0.231  0.926  0.129  1.0
  Mo  Mo10  1  0.908  0.327  0.470  1.0
  Mo  Mo11  1  0.092  0.673  0.530  1.0
  O  O12  1  0.917  0.524  0.596  1.0
  O  O13  1  0.083  0.476  0.404  1.0
  O  O14  1  0.329  0.709  0.443  1.0
  O  O15  1  0.671  0.291  0.557  1.0
  O  O16  1  0.424  0.594  0.819  1.0
  O  O17  1  0.576  0.406  0.181  1.0
  O  O18  1  0.647  0.906  0.814  1.0
  O  O19  1  0.353  0.094  0.186  1.0
  O  O20  1  0.703  0.569  0.409  1.0
  O  O21  1  0.297  0.431  0.591  1.0
  O  O22  1  0.131  0.773  0.657  1.0
  O  O23  1  0.869  0.227  0.343  1.0
  O  O24  1  0.299  0.901  0.983  1.0
  O  O25  1  0.701  0.099  0.017  1.0
  O  O26  1  0.040  0.169  0.537  1.0
  O  O27  1  0.960  0.831  0.463  1.0
  O  O28  1  0.579  0.734  0.620  1.0
  O  O29  1  0.421  0.266  0.380  1.0
  O  O30  1  0.002  0.999  0.849  1.0
  O  O31  1  0.998  0.001  0.151  1.0
  O  O32  1  0.722  0.592  0.981  1.0
  O  O33  1  0.278  0.408  0.019  1.0
  O  O34  1  0.728  0.284  0.804  1.0
  O  O35  1  0.272  0.716  0.196  1.0
  O  O36  1  0.338  0.217  0.813  1.0
  O  O37  1  0.662  0.783  0.187  1.0
  O  O38  1  0.051  0.511  0.841  1.0
  O  O39  1  0.949  0.489  0.159  1.0
  O  O40  1  0.618  0.948  0.406  1.0
  O  O41  1  0.382  0.052  0.594  1.0
[/CIF]
.
The compound described by Nd2Mo4O15 crystallizes in the triclinic P-1 space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded to one O(1), one O(11), one O(12), one O(14), one O(3), one O(4), and one O(9) atom to form distorted NdO7 pentagonal bipyramids that share  a cornercorner with one Mo(1)O4 tetrahedra, corners with two equivalent Mo(3)O4 tetrahedra, and corners with three equivalent Mo(2)O4 tetrahedra. In the second Nd site, Nd(2) is bonded in a 8-coordinate geometry to one O(10), one O(13), one O(15), one O(3), one O(4), one O(6), one O(7), and one O(9) atom. There are four inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(15), one O(2), one O(5), and one O(9) atom to form MoO4 tetrahedra that share  a cornercorner with one Nd(1)O7 pentagonal bipyramid. In the second Mo site, Mo(2) is bonded to one O(11), one O(13), one O(14), and one O(3) atom to form MoO4 tetrahedra that share corners with three equivalent Nd(1)O7 pentagonal bipyramids. In the third Mo site, Mo(3) is bonded to one O(10), one O(12), one O(4), and one O(7) atom to form MoO4 tetrahedra that share corners with two equivalent Nd(1)O7 pentagonal bipyramids. In the fourth Mo site, Mo(4) is bonded in a 6-coordinate geometry to one O(2), one O(5), one O(6), one O(8), and two equivalent O(1) atoms. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Nd(1) and two equivalent Mo(4) atoms. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Mo(1) and one Mo(4) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Nd(1), one Nd(2), and one Mo(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Nd(1), one Nd(2), and one Mo(3) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Mo(1) and one Mo(4) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Nd(2) and one Mo(4) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to one Nd(2) and one Mo(3) atom. In the eighth O site, O(8) is bonded in a single-bond geometry to one Mo(4) atom. In the ninth O site, O(9) is bonded in a 1-coordinate geometry to one Nd(1), one Nd(2), and one Mo(1) atom. In the tenth O site, O(10) is bonded in a linear geometry to one Nd(2) and one Mo(3) atom. In the eleventh O site, O(11) is bonded in a linear geometry to one Nd(1) and one Mo(2) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Nd(1) and one Mo(3) atom. In the thirteenth O site, O(13) is bonded in a bent 150 degrees geometry to one Nd(2) and one Mo(2) atom. In the fourteenth O site, O(14) is bonded in a linear geometry to one Nd(1) and one Mo(2) atom. In the fifteenth O site, O(15) is bonded in a distorted bent 150 degrees geometry to one Nd(2) and one Mo(1) atom. is represented by the CIF file [CIF]
data_Nd2Mo4O15
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.379
_cell_length_b   7.515
_cell_length_c   11.724
_cell_angle_alpha   88.752
_cell_angle_beta   84.220
_cell_angle_gamma   83.846
_symmetry_Int_Tables_number   1
_cell_volume   643.071
_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
  Nd  Nd0  1  0.753  0.589  0.776  1.0
  Nd  Nd1  1  0.247  0.411  0.224  1.0
  Nd  Nd2  1  0.319  0.911  0.776  1.0
  Nd  Nd3  1  0.681  0.089  0.224  1.0
  Mo  Mo4  1  0.561  0.747  0.471  1.0
  Mo  Mo5  1  0.439  0.253  0.529  1.0
  Mo  Mo6  1  0.272  0.430  0.871  1.0
  Mo  Mo7  1  0.728  0.570  0.129  1.0
  Mo  Mo8  1  0.769  0.074  0.871  1.0
  Mo  Mo9  1  0.231  0.926  0.129  1.0
  Mo  Mo10  1  0.908  0.327  0.470  1.0
  Mo  Mo11  1  0.092  0.673  0.530  1.0
  O  O12  1  0.917  0.524  0.596  1.0
  O  O13  1  0.083  0.476  0.404  1.0
  O  O14  1  0.329  0.709  0.443  1.0
  O  O15  1  0.671  0.291  0.557  1.0
  O  O16  1  0.424  0.594  0.819  1.0
  O  O17  1  0.576  0.406  0.181  1.0
  O  O18  1  0.647  0.906  0.814  1.0
  O  O19  1  0.353  0.094  0.186  1.0
  O  O20  1  0.703  0.569  0.409  1.0
  O  O21  1  0.297  0.431  0.591  1.0
  O  O22  1  0.131  0.773  0.657  1.0
  O  O23  1  0.869  0.227  0.343  1.0
  O  O24  1  0.299  0.901  0.983  1.0
  O  O25  1  0.701  0.099  0.017  1.0
  O  O26  1  0.040  0.169  0.537  1.0
  O  O27  1  0.960  0.831  0.463  1.0
  O  O28  1  0.579  0.734  0.620  1.0
  O  O29  1  0.421  0.266  0.380  1.0
  O  O30  1  0.002  0.999  0.849  1.0
  O  O31  1  0.998  0.001  0.151  1.0
  O  O32  1  0.722  0.592  0.981  1.0
  O  O33  1  0.278  0.408  0.019  1.0
  O  O34  1  0.728  0.284  0.804  1.0
  O  O35  1  0.272  0.716  0.196  1.0
  O  O36  1  0.338  0.217  0.813  1.0
  O  O37  1  0.662  0.783  0.187  1.0
  O  O38  1  0.051  0.511  0.841  1.0
  O  O39  1  0.949  0.489  0.159  1.0
  O  O40  1  0.618  0.948  0.406  1.0
  O  O41  1  0.382  0.052  0.594  1.0
[/CIF]
.