The material described by Hf4Ti(PbO3)5 crystallizes in the triclinic P1 space group. There are eight inequivalent Hf sites. In the first Hf site, Hf(1) is bonded to one O(13), one O(18), one O(23), one O(28), one O(3), and one O(8) atom to form HfO6 octahedra that share  a cornercorner with one Hf(8)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra, corners with two equivalent Hf(5)O6 octahedra, and corners with two equivalent Hf(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-15°. In the second Hf site, Hf(2) is bonded to one O(14), one O(19), one O(24), one O(29), one O(4), and one O(9) atom to form HfO6 octahedra that share  a cornercorner with one Hf(5)O6 octahedra,  a cornercorner with one Hf(7)O6 octahedra, corners with two equivalent Hf(6)O6 octahedra, and corners with two equivalent Ti(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-15°. In the third Hf site, Hf(3) is bonded to one O(10), one O(15), one O(20), one O(25), one O(30), and one O(5) atom to form HfO6 octahedra that share  a cornercorner with one Hf(6)O6 octahedra,  a cornercorner with one Hf(8)O6 octahedra, corners with two equivalent Hf(7)O6 octahedra, and corners with two equivalent Ti(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-15°. In the fourth Hf site, Hf(4) is bonded to one O(1), one O(11), one O(16), one O(21), one O(26), and one O(6) atom to form HfO6 octahedra that share  a cornercorner with one Hf(5)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra, corners with two equivalent Hf(7)O6 octahedra, and corners with two equivalent Hf(8)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-16°. In the fifth Hf site, Hf(5) is bonded to one O(13), one O(19), one O(2), one O(22), one O(28), and one O(6) atom to form HfO6 octahedra that share  a cornercorner with one Hf(2)O6 octahedra,  a cornercorner with one Hf(4)O6 octahedra, corners with two equivalent Hf(1)O6 octahedra, and corners with two equivalent Ti(1)O6 octahedra. The corner-sharing octahedral tilt angles are 15°. In the sixth Hf site, Hf(6) is bonded to one O(14), one O(20), one O(23), one O(29), one O(3), and one O(7) atom to form HfO6 octahedra that share  a cornercorner with one Hf(3)O6 octahedra,  a cornercorner with one Ti(1)O6 octahedra, corners with two equivalent Hf(1)O6 octahedra, and corners with two equivalent Hf(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-15°. In the seventh Hf site, Hf(7) is bonded to one O(11), one O(17), one O(25), one O(26), one O(5), and one O(9) atom to form HfO6 octahedra that share  a cornercorner with one Hf(2)O6 octahedra,  a cornercorner with one Ti(1)O6 octahedra, corners with two equivalent Hf(3)O6 octahedra, and corners with two equivalent Hf(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-16°. In the eighth Hf site, Hf(8) is bonded to one O(1), one O(10), one O(12), one O(18), one O(21), and one O(27) atom to form HfO6 octahedra that share  a cornercorner with one Hf(1)O6 octahedra,  a cornercorner with one Hf(3)O6 octahedra, corners with two equivalent Hf(4)O6 octahedra, and corners with two equivalent Ti(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-15°. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one O(12), one O(17), one O(2), one O(22), one O(27), and one O(7) atom to form TiO6 octahedra that share  a cornercorner with one Hf(6)O6 octahedra,  a cornercorner with one Hf(7)O6 octahedra, corners with two equivalent Hf(5)O6 octahedra, and corners with two equivalent Hf(8)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-15°. In the second Ti site, Ti(2) is bonded to one O(15), one O(16), one O(24), one O(30), one O(4), and one O(8) atom to form TiO6 octahedra that share  a cornercorner with one Hf(1)O6 octahedra,  a cornercorner with one Hf(4)O6 octahedra, corners with two equivalent Hf(2)O6 octahedra, and corners with two equivalent Hf(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-15°. There are ten inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 6-coordinate geometry to one O(14), one O(18), one O(22), one O(29), one O(3), and one O(7) atom. In the second Pb site, Pb(2) is bonded in a 6-coordinate geometry to one O(15), one O(19), one O(23), one O(30), one O(4), and one O(8) atom. In the third Pb site, Pb(3) is bonded in a 6-coordinate geometry to one O(11), one O(20), one O(24), one O(26), one O(5), and one O(9) atom. In the fourth Pb site, Pb(4) is bonded in a 6-coordinate geometry to one O(1), one O(10), one O(12), one O(16), one O(25), and one O(27) atom. In the fifth Pb site, Pb(5) is bonded in a 6-coordinate geometry to one O(13), one O(17), one O(2), one O(21), one O(28), and one O(6) atom. In the sixth Pb site, Pb(6) is bonded in a 6-coordinate geometry to one O(14), one O(19), one O(2), one O(24), one O(29), and one O(8) atom. In the seventh Pb site, Pb(7) is bonded in a 6-coordinate geometry to one O(15), one O(20), one O(25), one O(3), one O(30), and one O(9) atom. In the eighth Pb site, Pb(8) is bonded in a 6-coordinate geometry to one O(10), one O(11), one O(16), one O(21), one O(26), and one O(4) atom. In the ninth Pb site, Pb(9) is bonded in a 6-coordinate geometry to one O(12), one O(17), one O(22), one O(27), one O(5), and one O(6) atom. In the tenth Pb site, Pb(10) is bonded in a 6-coordinate geometry to one O(1), one O(13), one O(18), one O(23), one O(28), and one O(7) atom. There are thirty inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Hf(4), one Hf(8), one Pb(10), and one Pb(4) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Hf(5), one Ti(1), one Pb(5), and one Pb(6) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Hf(1), one Hf(6), one Pb(1), and one Pb(7) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Hf(2), one Ti(2), one Pb(2), and one Pb(8) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Hf(3), one Hf(7), one Pb(3), and one Pb(9) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Hf(4), one Hf(5), one Pb(5), and one Pb(9) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one Hf(6), one Ti(1), one Pb(1), and one Pb(10) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Hf(1), one Ti(2), one Pb(2), and one Pb(6) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one Hf(2), one Hf(7), one Pb(3), and one Pb(7) atom. In the tenth O site, O(10) is bonded in a 2-coordinate geometry to one Hf(3), one Hf(8), one Pb(4), and one Pb(8) atom. In the eleventh O site, O(11) is bonded in a 2-coordinate geometry to one Hf(4), one Hf(7), one Pb(3), and one Pb(8) atom. In the twelfth O site, O(12) is bonded in a 2-coordinate geometry to one Hf(8), one Ti(1), one Pb(4), and one Pb(9) atom. In the thirteenth O site, O(13) is bonded in a 2-coordinate geometry to one Hf(1), one Hf(5), one Pb(10), and one Pb(5) atom. In the fourteenth O site, O(14) is bonded in a 2-coordinate geometry to one Hf(2), one Hf(6), one Pb(1), and one Pb(6) atom. In the fifteenth O site, O(15) is bonded in a 4-coordinate geometry to one Hf(3), one Ti(2), one Pb(2), and one Pb(7) atom. In the sixteenth O site, O(16) is bonded in a 2-coordinate geometry to one Hf(4), one Ti(2), one Pb(4), and one Pb(8) atom. In the seventeenth O site, O(17) is bonded in a 4-coordinate geometry to one Hf(7), one Ti(1), one Pb(5), and one Pb(9) atom. In the eighteenth O site, O(18) is bonded in a 4-coordinate geometry to one Hf(1), one Hf(8), one Pb(1), and one Pb(10) atom. In the nineteenth O site, O(19) is bonded in a 2-coordinate geometry to one Hf(2), one Hf(5), one Pb(2), and one Pb(6) atom. In the twentieth O site, O(20) is bonded in a 2-coordinate geometry to one Hf(3), one Hf(6), one Pb(3), and one Pb(7) atom. In the twenty-first O site, O(21) is bonded in a 2-coordinate geometry to one Hf(4), one Hf(8), one Pb(5), and one Pb(8) atom. In the twenty-second O site, O(22) is bonded in a 4-coordinate geometry to one Hf(5), one Ti(1), one Pb(1), and one Pb(9) atom. In the twenty-third O site, O(23) is bonded in a 2-coordinate geometry to one Hf(1), one Hf(6), one Pb(10), and one Pb(2) atom. In the twenty-fourth O site, O(24) is bonded in a 2-coordinate geometry to one Hf(2), one Ti(2), one Pb(3), and one Pb(6) atom. In the twenty-fifth O site, O(25) is bonded in a 2-coordinate geometry to one Hf(3), one Hf(7), one Pb(4), and one Pb(7) atom. In the twenty-sixth O site, O(26) is bonded in a 2-coordinate geometry to one Hf(4), one Hf(7), one Pb(3), and one Pb(8) atom. In the twenty-seventh O site, O(27) is bonded in a 4-coordinate geometry to one Hf(8), one Ti(1), one Pb(4), and one Pb(9) atom. In the twenty-eighth O site, O(28) is bonded in a 2-coordinate geometry to one Hf(1), one Hf(5), one Pb(10), and one Pb(5) atom. In the twenty-ninth O site, O(29) is bonded in a 2-coordinate geometry to one Hf(2), one Hf(6), one Pb(1), and one Pb(6) atom. In the thirtieth O site, O(30) is bonded in a 2-coordinate geometry to one Hf(3), one Ti(2), one Pb(2), and one Pb(7) atom. is represented by the CIF file [CIF]
data_Hf4Ti(PbO3)5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.872
_cell_length_b   10.084
_cell_length_c   13.046
_cell_angle_alpha   75.075
_cell_angle_beta   77.648
_cell_angle_gamma   73.391
_symmetry_Int_Tables_number   1
_cell_volume   706.944
_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
  Hf  Hf0  1  0.432  0.297  0.891  1.0
  Hf  Hf1  1  0.231  0.899  0.692  1.0
  Hf  Hf2  1  0.032  0.496  0.493  1.0
  Hf  Hf3  1  0.829  0.098  0.293  1.0
  Hf  Hf4  1  0.032  0.996  0.993  1.0
  Hf  Hf5  1  0.829  0.598  0.793  1.0
  Hf  Hf6  1  0.431  0.797  0.391  1.0
  Hf  Hf7  1  0.231  0.399  0.192  1.0
  Ti  Ti8  1  0.639  0.697  0.091  1.0
  Ti  Ti9  1  0.639  0.197  0.590  1.0
  Pb  Pb10  1  0.279  0.644  0.934  1.0
  Pb  Pb11  1  0.088  0.242  0.727  1.0
  Pb  Pb12  1  0.877  0.846  0.531  1.0
  Pb  Pb13  1  0.674  0.447  0.329  1.0
  Pb  Pb14  1  0.478  0.038  0.130  1.0
  Pb  Pb15  1  0.674  0.947  0.829  1.0
  Pb  Pb16  1  0.477  0.538  0.630  1.0
  Pb  Pb17  1  0.279  0.144  0.435  1.0
  Pb  Pb18  1  0.088  0.742  0.227  1.0
  Pb  Pb19  1  0.876  0.346  0.031  1.0
  O  O20  1  0.986  0.265  0.237  1.0
  O  O21  1  0.782  0.854  0.040  1.0
  O  O22  1  0.588  0.463  0.839  1.0
  O  O23  1  0.392  0.065  0.636  1.0
  O  O24  1  0.189  0.661  0.437  1.0
  O  O25  1  0.903  0.029  0.154  1.0
  O  O26  1  0.701  0.633  0.959  1.0
  O  O27  1  0.506  0.229  0.749  1.0
  O  O28  1  0.302  0.830  0.552  1.0
  O  O29  1  0.101  0.431  0.352  1.0
  O  O30  1  0.110  0.958  0.361  1.0
  O  O31  1  0.899  0.564  0.156  1.0
  O  O32  1  0.710  0.155  0.961  1.0
  O  O33  1  0.510  0.760  0.760  1.0
  O  O34  1  0.315  0.354  0.560  1.0
  O  O35  1  0.689  0.169  0.447  1.0
  O  O36  1  0.493  0.767  0.237  1.0
  O  O37  1  0.289  0.369  0.039  1.0
  O  O38  1  0.089  0.968  0.840  1.0
  O  O39  1  0.891  0.566  0.641  1.0
  O  O40  1  0.498  0.234  0.248  1.0
  O  O41  1  0.303  0.830  0.048  1.0
  O  O42  1  0.098  0.433  0.848  1.0
  O  O43  1  0.887  0.040  0.644  1.0
  O  O44  1  0.698  0.630  0.448  1.0
  O  O45  1  0.613  0.951  0.364  1.0
  O  O46  1  0.416  0.553  0.161  1.0
  O  O47  1  0.215  0.148  0.963  1.0
  O  O48  1  0.011  0.753  0.762  1.0
  O  O49  1  0.806  0.342  0.563  1.0
[/CIF]
.
The material described by Hf4Ti(PbO3)5 crystallizes in the triclinic P1 space group. There are eight inequivalent Hf sites. In the first Hf site, Hf(1) is bonded to one O(13), one O(18), one O(23), one O(28), one O(3), and one O(8) atom to form HfO6 octahedra that share  a cornercorner with one Hf(8)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra, corners with two equivalent Hf(5)O6 octahedra, and corners with two equivalent Hf(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-15°. In the second Hf site, Hf(2) is bonded to one O(14), one O(19), one O(24), one O(29), one O(4), and one O(9) atom to form HfO6 octahedra that share  a cornercorner with one Hf(5)O6 octahedra,  a cornercorner with one Hf(7)O6 octahedra, corners with two equivalent Hf(6)O6 octahedra, and corners with two equivalent Ti(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-15°. In the third Hf site, Hf(3) is bonded to one O(10), one O(15), one O(20), one O(25), one O(30), and one O(5) atom to form HfO6 octahedra that share  a cornercorner with one Hf(6)O6 octahedra,  a cornercorner with one Hf(8)O6 octahedra, corners with two equivalent Hf(7)O6 octahedra, and corners with two equivalent Ti(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-15°. In the fourth Hf site, Hf(4) is bonded to one O(1), one O(11), one O(16), one O(21), one O(26), and one O(6) atom to form HfO6 octahedra that share  a cornercorner with one Hf(5)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra, corners with two equivalent Hf(7)O6 octahedra, and corners with two equivalent Hf(8)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-16°. In the fifth Hf site, Hf(5) is bonded to one O(13), one O(19), one O(2), one O(22), one O(28), and one O(6) atom to form HfO6 octahedra that share  a cornercorner with one Hf(2)O6 octahedra,  a cornercorner with one Hf(4)O6 octahedra, corners with two equivalent Hf(1)O6 octahedra, and corners with two equivalent Ti(1)O6 octahedra. The corner-sharing octahedral tilt angles are 15°. In the sixth Hf site, Hf(6) is bonded to one O(14), one O(20), one O(23), one O(29), one O(3), and one O(7) atom to form HfO6 octahedra that share  a cornercorner with one Hf(3)O6 octahedra,  a cornercorner with one Ti(1)O6 octahedra, corners with two equivalent Hf(1)O6 octahedra, and corners with two equivalent Hf(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-15°. In the seventh Hf site, Hf(7) is bonded to one O(11), one O(17), one O(25), one O(26), one O(5), and one O(9) atom to form HfO6 octahedra that share  a cornercorner with one Hf(2)O6 octahedra,  a cornercorner with one Ti(1)O6 octahedra, corners with two equivalent Hf(3)O6 octahedra, and corners with two equivalent Hf(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-16°. In the eighth Hf site, Hf(8) is bonded to one O(1), one O(10), one O(12), one O(18), one O(21), and one O(27) atom to form HfO6 octahedra that share  a cornercorner with one Hf(1)O6 octahedra,  a cornercorner with one Hf(3)O6 octahedra, corners with two equivalent Hf(4)O6 octahedra, and corners with two equivalent Ti(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-15°. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one O(12), one O(17), one O(2), one O(22), one O(27), and one O(7) atom to form TiO6 octahedra that share  a cornercorner with one Hf(6)O6 octahedra,  a cornercorner with one Hf(7)O6 octahedra, corners with two equivalent Hf(5)O6 octahedra, and corners with two equivalent Hf(8)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-15°. In the second Ti site, Ti(2) is bonded to one O(15), one O(16), one O(24), one O(30), one O(4), and one O(8) atom to form TiO6 octahedra that share  a cornercorner with one Hf(1)O6 octahedra,  a cornercorner with one Hf(4)O6 octahedra, corners with two equivalent Hf(2)O6 octahedra, and corners with two equivalent Hf(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-15°. There are ten inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 6-coordinate geometry to one O(14), one O(18), one O(22), one O(29), one O(3), and one O(7) atom. In the second Pb site, Pb(2) is bonded in a 6-coordinate geometry to one O(15), one O(19), one O(23), one O(30), one O(4), and one O(8) atom. In the third Pb site, Pb(3) is bonded in a 6-coordinate geometry to one O(11), one O(20), one O(24), one O(26), one O(5), and one O(9) atom. In the fourth Pb site, Pb(4) is bonded in a 6-coordinate geometry to one O(1), one O(10), one O(12), one O(16), one O(25), and one O(27) atom. In the fifth Pb site, Pb(5) is bonded in a 6-coordinate geometry to one O(13), one O(17), one O(2), one O(21), one O(28), and one O(6) atom. In the sixth Pb site, Pb(6) is bonded in a 6-coordinate geometry to one O(14), one O(19), one O(2), one O(24), one O(29), and one O(8) atom. In the seventh Pb site, Pb(7) is bonded in a 6-coordinate geometry to one O(15), one O(20), one O(25), one O(3), one O(30), and one O(9) atom. In the eighth Pb site, Pb(8) is bonded in a 6-coordinate geometry to one O(10), one O(11), one O(16), one O(21), one O(26), and one O(4) atom. In the ninth Pb site, Pb(9) is bonded in a 6-coordinate geometry to one O(12), one O(17), one O(22), one O(27), one O(5), and one O(6) atom. In the tenth Pb site, Pb(10) is bonded in a 6-coordinate geometry to one O(1), one O(13), one O(18), one O(23), one O(28), and one O(7) atom. There are thirty inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Hf(4), one Hf(8), one Pb(10), and one Pb(4) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Hf(5), one Ti(1), one Pb(5), and one Pb(6) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Hf(1), one Hf(6), one Pb(1), and one Pb(7) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Hf(2), one Ti(2), one Pb(2), and one Pb(8) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Hf(3), one Hf(7), one Pb(3), and one Pb(9) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Hf(4), one Hf(5), one Pb(5), and one Pb(9) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one Hf(6), one Ti(1), one Pb(1), and one Pb(10) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Hf(1), one Ti(2), one Pb(2), and one Pb(6) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one Hf(2), one Hf(7), one Pb(3), and one Pb(7) atom. In the tenth O site, O(10) is bonded in a 2-coordinate geometry to one Hf(3), one Hf(8), one Pb(4), and one Pb(8) atom. In the eleventh O site, O(11) is bonded in a 2-coordinate geometry to one Hf(4), one Hf(7), one Pb(3), and one Pb(8) atom. In the twelfth O site, O(12) is bonded in a 2-coordinate geometry to one Hf(8), one Ti(1), one Pb(4), and one Pb(9) atom. In the thirteenth O site, O(13) is bonded in a 2-coordinate geometry to one Hf(1), one Hf(5), one Pb(10), and one Pb(5) atom. In the fourteenth O site, O(14) is bonded in a 2-coordinate geometry to one Hf(2), one Hf(6), one Pb(1), and one Pb(6) atom. In the fifteenth O site, O(15) is bonded in a 4-coordinate geometry to one Hf(3), one Ti(2), one Pb(2), and one Pb(7) atom. In the sixteenth O site, O(16) is bonded in a 2-coordinate geometry to one Hf(4), one Ti(2), one Pb(4), and one Pb(8) atom. In the seventeenth O site, O(17) is bonded in a 4-coordinate geometry to one Hf(7), one Ti(1), one Pb(5), and one Pb(9) atom. In the eighteenth O site, O(18) is bonded in a 4-coordinate geometry to one Hf(1), one Hf(8), one Pb(1), and one Pb(10) atom. In the nineteenth O site, O(19) is bonded in a 2-coordinate geometry to one Hf(2), one Hf(5), one Pb(2), and one Pb(6) atom. In the twentieth O site, O(20) is bonded in a 2-coordinate geometry to one Hf(3), one Hf(6), one Pb(3), and one Pb(7) atom. In the twenty-first O site, O(21) is bonded in a 2-coordinate geometry to one Hf(4), one Hf(8), one Pb(5), and one Pb(8) atom. In the twenty-second O site, O(22) is bonded in a 4-coordinate geometry to one Hf(5), one Ti(1), one Pb(1), and one Pb(9) atom. In the twenty-third O site, O(23) is bonded in a 2-coordinate geometry to one Hf(1), one Hf(6), one Pb(10), and one Pb(2) atom. In the twenty-fourth O site, O(24) is bonded in a 2-coordinate geometry to one Hf(2), one Ti(2), one Pb(3), and one Pb(6) atom. In the twenty-fifth O site, O(25) is bonded in a 2-coordinate geometry to one Hf(3), one Hf(7), one Pb(4), and one Pb(7) atom. In the twenty-sixth O site, O(26) is bonded in a 2-coordinate geometry to one Hf(4), one Hf(7), one Pb(3), and one Pb(8) atom. In the twenty-seventh O site, O(27) is bonded in a 4-coordinate geometry to one Hf(8), one Ti(1), one Pb(4), and one Pb(9) atom. In the twenty-eighth O site, O(28) is bonded in a 2-coordinate geometry to one Hf(1), one Hf(5), one Pb(10), and one Pb(5) atom. In the twenty-ninth O site, O(29) is bonded in a 2-coordinate geometry to one Hf(2), one Hf(6), one Pb(1), and one Pb(6) atom. In the thirtieth O site, O(30) is bonded in a 2-coordinate geometry to one Hf(3), one Ti(2), one Pb(2), and one Pb(7) atom. is represented by the CIF file [CIF]
data_Hf4Ti(PbO3)5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.872
_cell_length_b   10.084
_cell_length_c   13.046
_cell_angle_alpha   75.075
_cell_angle_beta   77.648
_cell_angle_gamma   73.391
_symmetry_Int_Tables_number   1
_cell_volume   706.944
_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
  Hf  Hf0  1  0.432  0.297  0.891  1.0
  Hf  Hf1  1  0.231  0.899  0.692  1.0
  Hf  Hf2  1  0.032  0.496  0.493  1.0
  Hf  Hf3  1  0.829  0.098  0.293  1.0
  Hf  Hf4  1  0.032  0.996  0.993  1.0
  Hf  Hf5  1  0.829  0.598  0.793  1.0
  Hf  Hf6  1  0.431  0.797  0.391  1.0
  Hf  Hf7  1  0.231  0.399  0.192  1.0
  Ti  Ti8  1  0.639  0.697  0.091  1.0
  Ti  Ti9  1  0.639  0.197  0.590  1.0
  Pb  Pb10  1  0.279  0.644  0.934  1.0
  Pb  Pb11  1  0.088  0.242  0.727  1.0
  Pb  Pb12  1  0.877  0.846  0.531  1.0
  Pb  Pb13  1  0.674  0.447  0.329  1.0
  Pb  Pb14  1  0.478  0.038  0.130  1.0
  Pb  Pb15  1  0.674  0.947  0.829  1.0
  Pb  Pb16  1  0.477  0.538  0.630  1.0
  Pb  Pb17  1  0.279  0.144  0.435  1.0
  Pb  Pb18  1  0.088  0.742  0.227  1.0
  Pb  Pb19  1  0.876  0.346  0.031  1.0
  O  O20  1  0.986  0.265  0.237  1.0
  O  O21  1  0.782  0.854  0.040  1.0
  O  O22  1  0.588  0.463  0.839  1.0
  O  O23  1  0.392  0.065  0.636  1.0
  O  O24  1  0.189  0.661  0.437  1.0
  O  O25  1  0.903  0.029  0.154  1.0
  O  O26  1  0.701  0.633  0.959  1.0
  O  O27  1  0.506  0.229  0.749  1.0
  O  O28  1  0.302  0.830  0.552  1.0
  O  O29  1  0.101  0.431  0.352  1.0
  O  O30  1  0.110  0.958  0.361  1.0
  O  O31  1  0.899  0.564  0.156  1.0
  O  O32  1  0.710  0.155  0.961  1.0
  O  O33  1  0.510  0.760  0.760  1.0
  O  O34  1  0.315  0.354  0.560  1.0
  O  O35  1  0.689  0.169  0.447  1.0
  O  O36  1  0.493  0.767  0.237  1.0
  O  O37  1  0.289  0.369  0.039  1.0
  O  O38  1  0.089  0.968  0.840  1.0
  O  O39  1  0.891  0.566  0.641  1.0
  O  O40  1  0.498  0.234  0.248  1.0
  O  O41  1  0.303  0.830  0.048  1.0
  O  O42  1  0.098  0.433  0.848  1.0
  O  O43  1  0.887  0.040  0.644  1.0
  O  O44  1  0.698  0.630  0.448  1.0
  O  O45  1  0.613  0.951  0.364  1.0
  O  O46  1  0.416  0.553  0.161  1.0
  O  O47  1  0.215  0.148  0.963  1.0
  O  O48  1  0.011  0.753  0.762  1.0
  O  O49  1  0.806  0.342  0.563  1.0
[/CIF]
.