The material structure described by Mn2Pb2O5 is Pb (Zr_0.50 Ti_0.48) O_3-like structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(3), one O(4), and three equivalent O(5) atoms to form distorted MnO5 square pyramids that share corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent Mn(1)O5 square pyramids, and edges with two equivalent Mn(1)O5 square pyramids. The corner-sharing octahedral tilt angles range from 8-9°. In the second Mn site, Mn(2) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms to form MnO6 octahedra that share corners with four equivalent Mn(2)O6 octahedra and corners with two equivalent Mn(1)O5 square pyramids. The corner-sharing octahedral tilt angles range from 9-12°. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 5-coordinate geometry to one O(1), two equivalent O(3), and two equivalent O(4) atoms. In the second Pb site, Pb(2) is bonded in a 3-coordinate geometry to one O(1) and two equivalent O(2) atoms. There are five inequivalent O sites. In the first O site, O(5) is bonded in a distorted T-shaped geometry to three equivalent Mn(1) atoms. In the second O site, O(1) is bonded in a 2-coordinate geometry to two equivalent Mn(2), one Pb(1), and one Pb(2) atom. In the third O site, O(2) is bonded in a distorted see-saw-like geometry to two equivalent Mn(2) and two equivalent Pb(2) atoms. In the fourth O site, O(3) is bonded in a 2-coordinate geometry to one Mn(1), one Mn(2), and two equivalent Pb(1) atoms. In the fifth O site, O(4) is bonded in a distorted see-saw-like geometry to one Mn(1), one Mn(2), and two equivalent Pb(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mn2Pb2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.926
_cell_length_b   5.844
_cell_length_c   21.746
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   498.957
_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
  Mn  Mn0  1  0.250  0.449  0.553  1.0
  Mn  Mn1  1  0.250  0.949  0.947  1.0
  Mn  Mn2  1  0.750  0.551  0.447  1.0
  Mn  Mn3  1  0.750  0.051  0.053  1.0
  Mn  Mn4  1  0.250  0.960  0.685  1.0
  Mn  Mn5  1  0.250  0.460  0.815  1.0
  Mn  Mn6  1  0.750  0.040  0.315  1.0
  Mn  Mn7  1  0.750  0.540  0.185  1.0
  Pb  Pb8  1  0.750  0.944  0.572  1.0
  Pb  Pb9  1  0.750  0.444  0.928  1.0
  Pb  Pb10  1  0.250  0.056  0.428  1.0
  Pb  Pb11  1  0.250  0.556  0.072  1.0
  Pb  Pb12  1  0.750  0.919  0.810  1.0
  Pb  Pb13  1  0.750  0.419  0.690  1.0
  Pb  Pb14  1  0.250  0.081  0.190  1.0
  Pb  Pb15  1  0.250  0.581  0.310  1.0
  O  O16  1  0.750  0.983  0.681  1.0
  O  O17  1  0.750  0.483  0.819  1.0
  O  O18  1  0.250  0.017  0.319  1.0
  O  O19  1  0.250  0.517  0.181  1.0
  O  O20  1  0.250  0.734  0.757  1.0
  O  O21  1  0.250  0.234  0.743  1.0
  O  O22  1  0.750  0.266  0.243  1.0
  O  O23  1  0.750  0.766  0.257  1.0
  O  O24  1  0.250  0.198  0.610  1.0
  O  O25  1  0.250  0.698  0.890  1.0
  O  O26  1  0.750  0.802  0.390  1.0
  O  O27  1  0.750  0.302  0.110  1.0
  O  O28  1  0.250  0.726  0.615  1.0
  O  O29  1  0.250  0.226  0.885  1.0
  O  O30  1  0.750  0.274  0.385  1.0
  O  O31  1  0.750  0.774  0.115  1.0
  O  O32  1  0.750  0.424  0.534  1.0
  O  O33  1  0.750  0.924  0.966  1.0
  O  O34  1  0.250  0.576  0.466  1.0
  O  O35  1  0.250  0.076  0.034  1.0
[/CIF]
.
The material structure described by Mn2Pb2O5 is Pb (Zr_0.50 Ti_0.48) O_3-like structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(3), one O(4), and three equivalent O(5) atoms to form distorted MnO5 square pyramids that share corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent Mn(1)O5 square pyramids, and edges with two equivalent Mn(1)O5 square pyramids. The corner-sharing octahedral tilt angles range from 8-9°. In the second Mn site, Mn(2) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms to form MnO6 octahedra that share corners with four equivalent Mn(2)O6 octahedra and corners with two equivalent Mn(1)O5 square pyramids. The corner-sharing octahedral tilt angles range from 9-12°. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 5-coordinate geometry to one O(1), two equivalent O(3), and two equivalent O(4) atoms. In the second Pb site, Pb(2) is bonded in a 3-coordinate geometry to one O(1) and two equivalent O(2) atoms. There are five inequivalent O sites. In the first O site, O(5) is bonded in a distorted T-shaped geometry to three equivalent Mn(1) atoms. In the second O site, O(1) is bonded in a 2-coordinate geometry to two equivalent Mn(2), one Pb(1), and one Pb(2) atom. In the third O site, O(2) is bonded in a distorted see-saw-like geometry to two equivalent Mn(2) and two equivalent Pb(2) atoms. In the fourth O site, O(3) is bonded in a 2-coordinate geometry to one Mn(1), one Mn(2), and two equivalent Pb(1) atoms. In the fifth O site, O(4) is bonded in a distorted see-saw-like geometry to one Mn(1), one Mn(2), and two equivalent Pb(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mn2Pb2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.926
_cell_length_b   5.844
_cell_length_c   21.746
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   498.957
_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
  Mn  Mn0  1  0.250  0.449  0.553  1.0
  Mn  Mn1  1  0.250  0.949  0.947  1.0
  Mn  Mn2  1  0.750  0.551  0.447  1.0
  Mn  Mn3  1  0.750  0.051  0.053  1.0
  Mn  Mn4  1  0.250  0.960  0.685  1.0
  Mn  Mn5  1  0.250  0.460  0.815  1.0
  Mn  Mn6  1  0.750  0.040  0.315  1.0
  Mn  Mn7  1  0.750  0.540  0.185  1.0
  Pb  Pb8  1  0.750  0.944  0.572  1.0
  Pb  Pb9  1  0.750  0.444  0.928  1.0
  Pb  Pb10  1  0.250  0.056  0.428  1.0
  Pb  Pb11  1  0.250  0.556  0.072  1.0
  Pb  Pb12  1  0.750  0.919  0.810  1.0
  Pb  Pb13  1  0.750  0.419  0.690  1.0
  Pb  Pb14  1  0.250  0.081  0.190  1.0
  Pb  Pb15  1  0.250  0.581  0.310  1.0
  O  O16  1  0.750  0.983  0.681  1.0
  O  O17  1  0.750  0.483  0.819  1.0
  O  O18  1  0.250  0.017  0.319  1.0
  O  O19  1  0.250  0.517  0.181  1.0
  O  O20  1  0.250  0.734  0.757  1.0
  O  O21  1  0.250  0.234  0.743  1.0
  O  O22  1  0.750  0.266  0.243  1.0
  O  O23  1  0.750  0.766  0.257  1.0
  O  O24  1  0.250  0.198  0.610  1.0
  O  O25  1  0.250  0.698  0.890  1.0
  O  O26  1  0.750  0.802  0.390  1.0
  O  O27  1  0.750  0.302  0.110  1.0
  O  O28  1  0.250  0.726  0.615  1.0
  O  O29  1  0.250  0.226  0.885  1.0
  O  O30  1  0.750  0.274  0.385  1.0
  O  O31  1  0.750  0.774  0.115  1.0
  O  O32  1  0.750  0.424  0.534  1.0
  O  O33  1  0.750  0.924  0.966  1.0
  O  O34  1  0.250  0.576  0.466  1.0
  O  O35  1  0.250  0.076  0.034  1.0
[/CIF]
.