YbPb3Te4 is Caswellsilverite-like structured and crystallizes in the monoclinic C2/m space group. Yb(1) is bonded to two equivalent Te(2) and four equivalent Te(1) atoms to form YbTe6 octahedra that share corners with six equivalent Pb(1)Te6 octahedra, edges with two equivalent Yb(1)Te6 octahedra, edges with four equivalent Pb(2)Te6 octahedra, and edges with six equivalent Pb(1)Te6 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded to three equivalent Te(1) and three equivalent Te(2) atoms to form PbTe6 octahedra that share corners with three equivalent Yb(1)Te6 octahedra, corners with three equivalent Pb(2)Te6 octahedra, edges with three equivalent Yb(1)Te6 octahedra, edges with three equivalent Pb(2)Te6 octahedra, and edges with six equivalent Pb(1)Te6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. In the second Pb site, Pb(2) is bonded to two equivalent Te(1) and four equivalent Te(2) atoms to form PbTe6 octahedra that share corners with six equivalent Pb(1)Te6 octahedra, edges with two equivalent Pb(2)Te6 octahedra, edges with four equivalent Yb(1)Te6 octahedra, and edges with six equivalent Pb(1)Te6 octahedra. The corner-sharing octahedral tilt angles range from 2-3°. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to two equivalent Yb(1), one Pb(2), and three equivalent Pb(1) atoms to form TeYb2Pb4 octahedra that share corners with three equivalent Te(1)Yb2Pb4 octahedra, corners with three equivalent Te(2)YbPb5 octahedra, edges with five equivalent Te(1)Yb2Pb4 octahedra, and edges with seven equivalent Te(2)YbPb5 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the second Te site, Te(2) is bonded to one Yb(1), two equivalent Pb(2), and three equivalent Pb(1) atoms to form TeYbPb5 octahedra that share corners with three equivalent Te(1)Yb2Pb4 octahedra, corners with three equivalent Te(2)YbPb5 octahedra, edges with five equivalent Te(2)YbPb5 octahedra, and edges with seven equivalent Te(1)Yb2Pb4 octahedra. The corner-sharing octahedral tilt angles range from 0-1°.
YbPb3Te4 is Caswellsilverite-like structured and crystallizes in the monoclinic C2/m space group. Yb(1) is bonded to two equivalent Te(2) and four equivalent Te(1) atoms to form YbTe6 octahedra that share corners with six equivalent Pb(1)Te6 octahedra, edges with two equivalent Yb(1)Te6 octahedra, edges with four equivalent Pb(2)Te6 octahedra, and edges with six equivalent Pb(1)Te6 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. Both Yb(1)-Te(2) bond lengths are 3.21 Å. All Yb(1)-Te(1) bond lengths are 3.21 Å. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded to three equivalent Te(1) and three equivalent Te(2) atoms to form PbTe6 octahedra that share corners with three equivalent Yb(1)Te6 octahedra, corners with three equivalent Pb(2)Te6 octahedra, edges with three equivalent Yb(1)Te6 octahedra, edges with three equivalent Pb(2)Te6 octahedra, and edges with six equivalent Pb(1)Te6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. There is one shorter (3.26 Å) and two longer (3.32 Å) Pb(1)-Te(1) bond lengths. There are two shorter (3.27 Å) and one longer (3.32 Å) Pb(1)-Te(2) bond length. In the second Pb site, Pb(2) is bonded to two equivalent Te(1) and four equivalent Te(2) atoms to form PbTe6 octahedra that share corners with six equivalent Pb(1)Te6 octahedra, edges with two equivalent Pb(2)Te6 octahedra, edges with four equivalent Yb(1)Te6 octahedra, and edges with six equivalent Pb(1)Te6 octahedra. The corner-sharing octahedral tilt angles range from 2-3°. Both Pb(2)-Te(1) bond lengths are 3.27 Å. All Pb(2)-Te(2) bond lengths are 3.27 Å. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to two equivalent Yb(1), one Pb(2), and three equivalent Pb(1) atoms to form TeYb2Pb4 octahedra that share corners with three equivalent Te(1)Yb2Pb4 octahedra, corners with three equivalent Te(2)YbPb5 octahedra, edges with five equivalent Te(1)Yb2Pb4 octahedra, and edges with seven equivalent Te(2)YbPb5 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the second Te site, Te(2) is bonded to one Yb(1), two equivalent Pb(2), and three equivalent Pb(1) atoms to form TeYbPb5 octahedra that share corners with three equivalent Te(1)Yb2Pb4 octahedra, corners with three equivalent Te(2)YbPb5 octahedra, edges with five equivalent Te(2)YbPb5 octahedra, and edges with seven equivalent Te(1)Yb2Pb4 octahedra. The corner-sharing octahedral tilt angles range from 0-1°.