The crystal structure described by Fe2PbAs2H2O10 crystallizes in the monoclinic C2/m space group. Fe(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form FeO6 octahedra that share corners with two equivalent Pb(1)O6 octahedra, corners with four equivalent As(1)O4 tetrahedra, and edges with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles are 66°. Pb(1) is bonded to two equivalent O(4) and four equivalent O(3) atoms to form PbO6 octahedra that share corners with four equivalent Fe(1)O6 octahedra and corners with six equivalent As(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 66°. As(1) is bonded to one O(1), one O(4), and two equivalent O(3) atoms to form AsO4 tetrahedra that share corners with three equivalent Pb(1)O6 octahedra and corners with four equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-72°. H(1) is bonded in a single-bond geometry to one O(2) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Fe(1) and one As(1) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Fe(1) and one H(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Fe(1), one Pb(1), and one As(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Pb(1) and one As(1) atom. is represented by the CIF file [CIF]
data_Fe2As2H2PbO10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.597
_cell_length_b   5.597
_cell_length_c   7.733
_cell_angle_alpha   70.187
_cell_angle_beta   70.187
_cell_angle_gamma   68.755
_symmetry_Int_Tables_number   1
_cell_volume   205.896
_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
  Fe  Fe0  1  0.500  0.000  0.500  1.0
  Fe  Fe1  1  0.000  0.500  0.500  1.0
  As  As2  1  0.581  0.581  0.214  1.0
  As  As3  1  0.419  0.419  0.786  1.0
  H  H4  1  0.795  0.795  0.732  1.0
  H  H5  1  0.205  0.205  0.268  1.0
  Pb  Pb6  1  0.000  0.000  0.000  1.0
  O  O7  1  0.689  0.689  0.360  1.0
  O  O8  1  0.311  0.311  0.640  1.0
  O  O9  1  0.825  0.825  0.593  1.0
  O  O10  1  0.175  0.175  0.407  1.0
  O  O11  1  0.688  0.240  0.267  1.0
  O  O12  1  0.312  0.760  0.733  1.0
  O  O13  1  0.760  0.312  0.733  1.0
  O  O14  1  0.240  0.688  0.267  1.0
  O  O15  1  0.279  0.279  0.011  1.0
  O  O16  1  0.721  0.721  0.989  1.0
[/CIF]
.
The crystal structure described by Fe2PbAs2H2O10 crystallizes in the monoclinic C2/m space group. Fe(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form FeO6 octahedra that share corners with two equivalent Pb(1)O6 octahedra, corners with four equivalent As(1)O4 tetrahedra, and edges with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles are 66°. Pb(1) is bonded to two equivalent O(4) and four equivalent O(3) atoms to form PbO6 octahedra that share corners with four equivalent Fe(1)O6 octahedra and corners with six equivalent As(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 66°. As(1) is bonded to one O(1), one O(4), and two equivalent O(3) atoms to form AsO4 tetrahedra that share corners with three equivalent Pb(1)O6 octahedra and corners with four equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-72°. H(1) is bonded in a single-bond geometry to one O(2) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Fe(1) and one As(1) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Fe(1) and one H(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Fe(1), one Pb(1), and one As(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Pb(1) and one As(1) atom. is represented by the CIF file [CIF]
data_Fe2As2H2PbO10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.597
_cell_length_b   5.597
_cell_length_c   7.733
_cell_angle_alpha   70.187
_cell_angle_beta   70.187
_cell_angle_gamma   68.755
_symmetry_Int_Tables_number   1
_cell_volume   205.896
_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
  Fe  Fe0  1  0.500  0.000  0.500  1.0
  Fe  Fe1  1  0.000  0.500  0.500  1.0
  As  As2  1  0.581  0.581  0.214  1.0
  As  As3  1  0.419  0.419  0.786  1.0
  H  H4  1  0.795  0.795  0.732  1.0
  H  H5  1  0.205  0.205  0.268  1.0
  Pb  Pb6  1  0.000  0.000  0.000  1.0
  O  O7  1  0.689  0.689  0.360  1.0
  O  O8  1  0.311  0.311  0.640  1.0
  O  O9  1  0.825  0.825  0.593  1.0
  O  O10  1  0.175  0.175  0.407  1.0
  O  O11  1  0.688  0.240  0.267  1.0
  O  O12  1  0.312  0.760  0.733  1.0
  O  O13  1  0.760  0.312  0.733  1.0
  O  O14  1  0.240  0.688  0.267  1.0
  O  O15  1  0.279  0.279  0.011  1.0
  O  O16  1  0.721  0.721  0.989  1.0
[/CIF]
.