The compound described by Tm2Pb2O7 crystallizes in the cubic Fd-3m space group. Tm(1) is bonded in a body-centered cubic geometry to two equivalent O(2) and six equivalent O(1) atoms. Pb(1) is bonded to six equivalent O(1) atoms to form distorted corner-sharing PbO6 octahedra. The corner-sharing octahedral tilt angles are 60°. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Tm(1) and two equivalent Pb(1) atoms to form OTm2Pb2 tetrahedra that share corners with two equivalent O(2)Tm4 tetrahedra, corners with twelve equivalent O(1)Tm2Pb2 tetrahedra,  an edgeedge with one O(2)Tm4 tetrahedra, and edges with four equivalent O(1)Tm2Pb2 tetrahedra. In the second O site, O(2) is bonded to four equivalent Tm(1) atoms to form OTm4 tetrahedra that share corners with four equivalent O(2)Tm4 tetrahedra, corners with twelve equivalent O(1)Tm2Pb2 tetrahedra, and edges with six equivalent O(1)Tm2Pb2 tetrahedra. is represented by the CIF card [CIF]
data_Tm2Pb2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.556
_cell_length_b   7.556
_cell_length_c   7.556
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   305.028
_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
  Tm  Tm0  1  0.625  0.625  0.125  1.0
  Tm  Tm1  1  0.625  0.625  0.625  1.0
  Tm  Tm2  1  0.625  0.125  0.625  1.0
  Tm  Tm3  1  0.125  0.625  0.625  1.0
  Pb  Pb4  1  0.125  0.125  0.125  1.0
  Pb  Pb5  1  0.625  0.125  0.125  1.0
  Pb  Pb6  1  0.125  0.625  0.125  1.0
  Pb  Pb7  1  0.125  0.125  0.625  1.0
  O  O8  1  0.022  0.478  0.478  1.0
  O  O9  1  0.772  0.772  0.228  1.0
  O  O10  1  0.772  0.228  0.228  1.0
  O  O11  1  0.478  0.022  0.478  1.0
  O  O12  1  0.022  0.022  0.478  1.0
  O  O13  1  0.022  0.478  0.022  1.0
  O  O14  1  0.750  0.750  0.750  1.0
  O  O15  1  0.500  0.500  0.500  1.0
  O  O16  1  0.772  0.228  0.772  1.0
  O  O17  1  0.228  0.772  0.228  1.0
  O  O18  1  0.228  0.228  0.772  1.0
  O  O19  1  0.478  0.022  0.022  1.0
  O  O20  1  0.478  0.478  0.022  1.0
  O  O21  1  0.228  0.772  0.772  1.0
[/CIF]
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The compound described by Tm2Pb2O7 crystallizes in the cubic Fd-3m space group. Tm(1) is bonded in a body-centered cubic geometry to two equivalent O(2) and six equivalent O(1) atoms. Pb(1) is bonded to six equivalent O(1) atoms to form distorted corner-sharing PbO6 octahedra. The corner-sharing octahedral tilt angles are 60°. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Tm(1) and two equivalent Pb(1) atoms to form OTm2Pb2 tetrahedra that share corners with two equivalent O(2)Tm4 tetrahedra, corners with twelve equivalent O(1)Tm2Pb2 tetrahedra,  an edgeedge with one O(2)Tm4 tetrahedra, and edges with four equivalent O(1)Tm2Pb2 tetrahedra. In the second O site, O(2) is bonded to four equivalent Tm(1) atoms to form OTm4 tetrahedra that share corners with four equivalent O(2)Tm4 tetrahedra, corners with twelve equivalent O(1)Tm2Pb2 tetrahedra, and edges with six equivalent O(1)Tm2Pb2 tetrahedra. is represented by the CIF card [CIF]
data_Tm2Pb2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.556
_cell_length_b   7.556
_cell_length_c   7.556
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   305.028
_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
  Tm  Tm0  1  0.625  0.625  0.125  1.0
  Tm  Tm1  1  0.625  0.625  0.625  1.0
  Tm  Tm2  1  0.625  0.125  0.625  1.0
  Tm  Tm3  1  0.125  0.625  0.625  1.0
  Pb  Pb4  1  0.125  0.125  0.125  1.0
  Pb  Pb5  1  0.625  0.125  0.125  1.0
  Pb  Pb6  1  0.125  0.625  0.125  1.0
  Pb  Pb7  1  0.125  0.125  0.625  1.0
  O  O8  1  0.022  0.478  0.478  1.0
  O  O9  1  0.772  0.772  0.228  1.0
  O  O10  1  0.772  0.228  0.228  1.0
  O  O11  1  0.478  0.022  0.478  1.0
  O  O12  1  0.022  0.022  0.478  1.0
  O  O13  1  0.022  0.478  0.022  1.0
  O  O14  1  0.750  0.750  0.750  1.0
  O  O15  1  0.500  0.500  0.500  1.0
  O  O16  1  0.772  0.228  0.772  1.0
  O  O17  1  0.228  0.772  0.228  1.0
  O  O18  1  0.228  0.228  0.772  1.0
  O  O19  1  0.478  0.022  0.022  1.0
  O  O20  1  0.478  0.478  0.022  1.0
  O  O21  1  0.228  0.772  0.772  1.0
[/CIF]
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