The material described by V6PbO15 crystallizes in the monoclinic Cm space group. There are six inequivalent V sites. In the first V site, V(1) is bonded in a 6-coordinate geometry to one O(1), one O(10), one O(13), one O(9), and two equivalent O(12) atoms. In the second V site, V(2) is bonded in a 6-coordinate geometry to one O(11), one O(12), one O(2), one O(8), and two equivalent O(13) atoms. In the third V site, V(3) is bonded in a 6-coordinate geometry to one O(10), one O(13), one O(3), one O(7), and two equivalent O(8) atoms. In the fourth V site, V(4) is bonded to one O(11), one O(12), one O(4), one O(7), and two equivalent O(9) atoms to form distorted corner-sharing VO6 octahedra. The corner-sharing octahedral tilt angles are 29°. In the fifth V site, V(5) is bonded in a 5-coordinate geometry to one O(10), one O(14), one O(5), and two equivalent O(6) atoms. In the sixth V site, V(6) is bonded in a 6-coordinate geometry to one O(11), one O(15), one O(4), one O(6), and two equivalent O(5) atoms. Pb(1) is bonded in a 7-coordinate geometry to one O(3), two equivalent O(1), two equivalent O(14), and two equivalent O(15) atoms. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one V(1) and two equivalent Pb(1) atoms. In the second O site, O(2) is bonded in a single-bond geometry to one V(2) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one V(3) and one Pb(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one V(4) and one V(6) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one V(5) and two equivalent V(6) atoms. In the sixth O site, O(6) is bonded in a distorted T-shaped geometry to one V(6) and two equivalent V(5) atoms. In the seventh O site, O(7) is bonded in a linear geometry to one V(3) and one V(4) atom. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one V(2) and two equivalent V(3) atoms. In the ninth O site, O(9) is bonded in a distorted T-shaped geometry to one V(1) and two equivalent V(4) atoms. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one V(1), one V(3), and one V(5) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one V(2), one V(4), and one V(6) atom. In the twelfth O site, O(12) is bonded to one V(2), one V(4), and two equivalent V(1) atoms to form a mixture of distorted corner and edge-sharing OV4 trigonal pyramids. In the thirteenth O site, O(13) is bonded to one V(1), one V(3), and two equivalent V(2) atoms to form a mixture of distorted corner and edge-sharing OV4 trigonal pyramids. In the fourteenth O site, O(14) is bonded in a single-bond geometry to one V(5) and two equivalent Pb(1) atoms. In the fifteenth O site, O(15) is bonded in a distorted single-bond geometry to one V(6) and two equivalent Pb(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_V6PbO15
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.055
_cell_length_b   8.055
_cell_length_c   10.390
_cell_angle_alpha   70.697
_cell_angle_beta   70.697
_cell_angle_gamma   26.784
_symmetry_Int_Tables_number   1
_cell_volume   285.742
_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
  V  V0  1  0.334  0.334  0.902  1.0
  V  V1  1  0.668  0.668  0.101  1.0
  V  V2  1  0.116  0.116  0.890  1.0
  V  V3  1  0.878  0.878  0.113  1.0
  V  V4  1  0.284  0.284  0.593  1.0
  V  V5  1  0.719  0.719  0.412  1.0
  Pb  Pb6  1  0.001  0.001  0.601  1.0
  O  O7  1  0.437  0.437  0.775  1.0
  O  O8  1  0.568  0.568  0.215  1.0
  O  O9  1  0.108  0.108  0.733  1.0
  O  O10  1  0.882  0.882  0.269  1.0
  O  O11  1  0.246  0.246  0.430  1.0
  O  O12  1  0.758  0.758  0.576  1.0
  O  O13  1  0.001  0.001  1.000  1.0
  O  O14  1  0.635  0.635  0.925  1.0
  O  O15  1  0.369  0.369  0.073  1.0
  O  O16  1  0.261  0.261  0.776  1.0
  O  O17  1  0.738  0.738  0.213  1.0
  O  O18  1  0.816  0.816  0.955  1.0
  O  O19  1  0.186  0.186  0.043  1.0
  O  O20  1  0.396  0.396  0.532  1.0
  O  O21  1  0.603  0.603  0.479  1.0
[/CIF]
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The material described by V6PbO15 crystallizes in the monoclinic Cm space group. There are six inequivalent V sites. In the first V site, V(1) is bonded in a 6-coordinate geometry to one O(1), one O(10), one O(13), one O(9), and two equivalent O(12) atoms. In the second V site, V(2) is bonded in a 6-coordinate geometry to one O(11), one O(12), one O(2), one O(8), and two equivalent O(13) atoms. In the third V site, V(3) is bonded in a 6-coordinate geometry to one O(10), one O(13), one O(3), one O(7), and two equivalent O(8) atoms. In the fourth V site, V(4) is bonded to one O(11), one O(12), one O(4), one O(7), and two equivalent O(9) atoms to form distorted corner-sharing VO6 octahedra. The corner-sharing octahedral tilt angles are 29°. In the fifth V site, V(5) is bonded in a 5-coordinate geometry to one O(10), one O(14), one O(5), and two equivalent O(6) atoms. In the sixth V site, V(6) is bonded in a 6-coordinate geometry to one O(11), one O(15), one O(4), one O(6), and two equivalent O(5) atoms. Pb(1) is bonded in a 7-coordinate geometry to one O(3), two equivalent O(1), two equivalent O(14), and two equivalent O(15) atoms. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one V(1) and two equivalent Pb(1) atoms. In the second O site, O(2) is bonded in a single-bond geometry to one V(2) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one V(3) and one Pb(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one V(4) and one V(6) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one V(5) and two equivalent V(6) atoms. In the sixth O site, O(6) is bonded in a distorted T-shaped geometry to one V(6) and two equivalent V(5) atoms. In the seventh O site, O(7) is bonded in a linear geometry to one V(3) and one V(4) atom. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one V(2) and two equivalent V(3) atoms. In the ninth O site, O(9) is bonded in a distorted T-shaped geometry to one V(1) and two equivalent V(4) atoms. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one V(1), one V(3), and one V(5) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one V(2), one V(4), and one V(6) atom. In the twelfth O site, O(12) is bonded to one V(2), one V(4), and two equivalent V(1) atoms to form a mixture of distorted corner and edge-sharing OV4 trigonal pyramids. In the thirteenth O site, O(13) is bonded to one V(1), one V(3), and two equivalent V(2) atoms to form a mixture of distorted corner and edge-sharing OV4 trigonal pyramids. In the fourteenth O site, O(14) is bonded in a single-bond geometry to one V(5) and two equivalent Pb(1) atoms. In the fifteenth O site, O(15) is bonded in a distorted single-bond geometry to one V(6) and two equivalent Pb(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_V6PbO15
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.055
_cell_length_b   8.055
_cell_length_c   10.390
_cell_angle_alpha   70.697
_cell_angle_beta   70.697
_cell_angle_gamma   26.784
_symmetry_Int_Tables_number   1
_cell_volume   285.742
_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
  V  V0  1  0.334  0.334  0.902  1.0
  V  V1  1  0.668  0.668  0.101  1.0
  V  V2  1  0.116  0.116  0.890  1.0
  V  V3  1  0.878  0.878  0.113  1.0
  V  V4  1  0.284  0.284  0.593  1.0
  V  V5  1  0.719  0.719  0.412  1.0
  Pb  Pb6  1  0.001  0.001  0.601  1.0
  O  O7  1  0.437  0.437  0.775  1.0
  O  O8  1  0.568  0.568  0.215  1.0
  O  O9  1  0.108  0.108  0.733  1.0
  O  O10  1  0.882  0.882  0.269  1.0
  O  O11  1  0.246  0.246  0.430  1.0
  O  O12  1  0.758  0.758  0.576  1.0
  O  O13  1  0.001  0.001  1.000  1.0
  O  O14  1  0.635  0.635  0.925  1.0
  O  O15  1  0.369  0.369  0.073  1.0
  O  O16  1  0.261  0.261  0.776  1.0
  O  O17  1  0.738  0.738  0.213  1.0
  O  O18  1  0.816  0.816  0.955  1.0
  O  O19  1  0.186  0.186  0.043  1.0
  O  O20  1  0.396  0.396  0.532  1.0
  O  O21  1  0.603  0.603  0.479  1.0
[/CIF]
.