U3Te5(PbO4)8 crystallizes in the triclinic P-1 space group. There are two inequivalent U sites. In the first U site, U(1) is bonded to one O(10), one O(3), one O(4), one O(7), one O(8), and one O(9) atom to form UO6 octahedra that share  a cornercorner with one Te(1)O6 octahedra,  a cornercorner with one Te(2)O6 octahedra, and corners with two equivalent Te(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 38-44°. In the second U site, U(2) is bonded to two equivalent O(1), two equivalent O(11), and two equivalent O(6) atoms to form UO6 octahedra that share corners with two equivalent Te(1)O6 octahedra and corners with two equivalent Te(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 38-41°. There are four inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 5-coordinate geometry to one O(1), one O(11), one O(13), one O(14), and one O(7) atom. In the second Pb site, Pb(2) is bonded in a 5-coordinate geometry to one O(12), one O(13), one O(14), one O(2), and one O(8) atom. In the third Pb site, Pb(3) is bonded in a 7-coordinate geometry to one O(12), one O(14), one O(3), one O(5), one O(9), and two equivalent O(15) atoms. In the fourth Pb site, Pb(4) is bonded in a 5-coordinate geometry to one O(10), one O(4), one O(6), and two equivalent O(16) atoms. There are four inequivalent Te sites. In the first Te site, Te(1) is bonded to two equivalent O(16), two equivalent O(4), and two equivalent O(6) atoms to form TeO6 octahedra that share corners with two equivalent U(1)O6 octahedra and corners with two equivalent U(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 38-44°. In the second Te site, Te(2) is bonded to two equivalent O(15), two equivalent O(3), and two equivalent O(5) atoms to form TeO6 octahedra that share corners with two equivalent U(1)O6 octahedra and corners with two equivalent Te(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-43°. In the third Te site, Te(3) is bonded to one O(1), one O(13), one O(14), one O(2), one O(7), and one O(8) atom to form TeO6 octahedra that share  a cornercorner with one U(2)O6 octahedra,  a cornercorner with one Te(4)O6 octahedra, and corners with two equivalent U(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 38-42°. In the fourth Te site, Te(4) is bonded to two equivalent O(12), two equivalent O(2), and two equivalent O(5) atoms to form corner-sharing TeO6 octahedra. The corner-sharing octahedral tilt angles range from 37-42°. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one U(2), one Pb(1), and one Te(3) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Pb(2), one Te(3), and one Te(4) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one U(1), one Pb(3), and one Te(2) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one U(1), one Pb(4), and one Te(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Pb(3), one Te(2), and one Te(4) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one U(2), one Pb(4), and one Te(1) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one U(1), one Pb(1), and one Te(3) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one U(1), one Pb(2), and one Te(3) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one U(1) and one Pb(3) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one U(1) and one Pb(4) atom. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to one U(2) and one Pb(1) atom. In the twelfth O site, O(12) is bonded in a 1-coordinate geometry to one Pb(2), one Pb(3), and one Te(4) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal non-coplanar geometry to one Pb(1), one Pb(2), and one Te(3) atom. In the fourteenth O site, O(14) is bonded in a 3-coordinate geometry to one Pb(1), one Pb(2), one Pb(3), and one Te(3) atom. In the fifteenth O site, O(15) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Pb(3) and one Te(2) atom. In the sixteenth O site, O(16) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Pb(4) and one Te(1) atom.
U3Te5(PbO4)8 crystallizes in the triclinic P-1 space group. There are two inequivalent U sites. In the first U site, U(1) is bonded to one O(10), one O(3), one O(4), one O(7), one O(8), and one O(9) atom to form UO6 octahedra that share  a cornercorner with one Te(1)O6 octahedra,  a cornercorner with one Te(2)O6 octahedra, and corners with two equivalent Te(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 38-44°. The U(1)-O(10) bond length is 1.88 Å. The U(1)-O(3) bond length is 2.22 Å. The U(1)-O(4) bond length is 2.24 Å. The U(1)-O(7) bond length is 2.23 Å. The U(1)-O(8) bond length is 2.24 Å. The U(1)-O(9) bond length is 1.87 Å. In the second U site, U(2) is bonded to two equivalent O(1), two equivalent O(11), and two equivalent O(6) atoms to form UO6 octahedra that share corners with two equivalent Te(1)O6 octahedra and corners with two equivalent Te(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 38-41°. Both U(2)-O(1) bond lengths are 2.24 Å. Both U(2)-O(11) bond lengths are 1.89 Å. Both U(2)-O(6) bond lengths are 2.22 Å. There are four inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 5-coordinate geometry to one O(1), one O(11), one O(13), one O(14), and one O(7) atom. The Pb(1)-O(1) bond length is 2.73 Å. The Pb(1)-O(11) bond length is 2.56 Å. The Pb(1)-O(13) bond length is 2.43 Å. The Pb(1)-O(14) bond length is 2.52 Å. The Pb(1)-O(7) bond length is 2.53 Å. In the second Pb site, Pb(2) is bonded in a 5-coordinate geometry to one O(12), one O(13), one O(14), one O(2), and one O(8) atom. The Pb(2)-O(12) bond length is 2.46 Å. The Pb(2)-O(13) bond length is 2.55 Å. The Pb(2)-O(14) bond length is 2.41 Å. The Pb(2)-O(2) bond length is 2.78 Å. The Pb(2)-O(8) bond length is 2.51 Å. In the third Pb site, Pb(3) is bonded in a 7-coordinate geometry to one O(12), one O(14), one O(3), one O(5), one O(9), and two equivalent O(15) atoms. The Pb(3)-O(12) bond length is 2.79 Å. The Pb(3)-O(14) bond length is 2.86 Å. The Pb(3)-O(3) bond length is 2.81 Å. The Pb(3)-O(5) bond length is 2.53 Å. The Pb(3)-O(9) bond length is 2.64 Å. There is one shorter (2.46 Å) and one longer (2.58 Å) Pb(3)-O(15) bond length. In the fourth Pb site, Pb(4) is bonded in a 5-coordinate geometry to one O(10), one O(4), one O(6), and two equivalent O(16) atoms. The Pb(4)-O(10) bond length is 2.53 Å. The Pb(4)-O(4) bond length is 2.70 Å. The Pb(4)-O(6) bond length is 2.53 Å. There is one shorter (2.42 Å) and one longer (2.51 Å) Pb(4)-O(16) bond length. There are four inequivalent Te sites. In the first Te site, Te(1) is bonded to two equivalent O(16), two equivalent O(4), and two equivalent O(6) atoms to form TeO6 octahedra that share corners with two equivalent U(1)O6 octahedra and corners with two equivalent U(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 38-44°. Both Te(1)-O(16) bond lengths are 1.94 Å. Both Te(1)-O(4) bond lengths are 1.97 Å. Both Te(1)-O(6) bond lengths are 1.98 Å. In the second Te site, Te(2) is bonded to two equivalent O(15), two equivalent O(3), and two equivalent O(5) atoms to form TeO6 octahedra that share corners with two equivalent U(1)O6 octahedra and corners with two equivalent Te(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-43°. Both Te(2)-O(15) bond lengths are 1.92 Å. Both Te(2)-O(3) bond lengths are 1.96 Å. Both Te(2)-O(5) bond lengths are 2.08 Å. In the third Te site, Te(3) is bonded to one O(1), one O(13), one O(14), one O(2), one O(7), and one O(8) atom to form TeO6 octahedra that share  a cornercorner with one U(2)O6 octahedra,  a cornercorner with one Te(4)O6 octahedra, and corners with two equivalent U(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 38-42°. The Te(3)-O(1) bond length is 1.98 Å. The Te(3)-O(13) bond length is 1.92 Å. The Te(3)-O(14) bond length is 1.93 Å. The Te(3)-O(2) bond length is 2.04 Å. The Te(3)-O(7) bond length is 1.97 Å. The Te(3)-O(8) bond length is 1.97 Å. In the fourth Te site, Te(4) is bonded to two equivalent O(12), two equivalent O(2), and two equivalent O(5) atoms to form corner-sharing TeO6 octahedra. The corner-sharing octahedral tilt angles range from 37-42°. Both Te(4)-O(12) bond lengths are 1.88 Å. Both Te(4)-O(2) bond lengths are 2.06 Å. Both Te(4)-O(5) bond lengths are 2.10 Å. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one U(2), one Pb(1), and one Te(3) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Pb(2), one Te(3), and one Te(4) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one U(1), one Pb(3), and one Te(2) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one U(1), one Pb(4), and one Te(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Pb(3), one Te(2), and one Te(4) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one U(2), one Pb(4), and one Te(1) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one U(1), one Pb(1), and one Te(3) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one U(1), one Pb(2), and one Te(3) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one U(1) and one Pb(3) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one U(1) and one Pb(4) atom. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to one U(2) and one Pb(1) atom. In the twelfth O site, O(12) is bonded in a 1-coordinate geometry to one Pb(2), one Pb(3), and one Te(4) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal non-coplanar geometry to one Pb(1), one Pb(2), and one Te(3) atom. In the fourteenth O site, O(14) is bonded in a 3-coordinate geometry to one Pb(1), one Pb(2), one Pb(3), and one Te(3) atom. In the fifteenth O site, O(15) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Pb(3) and one Te(2) atom. In the sixteenth O site, O(16) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Pb(4) and one Te(1) atom.