Ba5Ga5Pb crystallizes in the hexagonal P-6m2 space group. There are three inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 10-coordinate geometry to three equivalent Ga(1), six equivalent Ga(2), and one Pb(1) atom. In the second Ba site, Ba(2) is bonded in a 9-coordinate geometry to three equivalent Ga(1), three equivalent Ga(2), and three equivalent Pb(1) atoms. In the third Ba site, Ba(3) is bonded to two equivalent Ga(1) and three equivalent Pb(1) atoms to form corner-sharing BaGa2Pb3 trigonal bipyramids. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 10-coordinate geometry to one Ba(3), three equivalent Ba(1), three equivalent Ba(2), and three equivalent Ga(2) atoms. In the second Ga site, Ga(2) is bonded in a distorted q6 geometry to two equivalent Ba(2), four equivalent Ba(1), two equivalent Ga(1), and two equivalent Ga(2) atoms. Pb(1) is bonded to two equivalent Ba(1), three equivalent Ba(3), and six equivalent Ba(2) atoms to form distorted face-sharing PbBa11 trigonal bipyramids.
Ba5Ga5Pb crystallizes in the hexagonal P-6m2 space group. There are three inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 10-coordinate geometry to three equivalent Ga(1), six equivalent Ga(2), and one Pb(1) atom. All Ba(1)-Ga(1) bond lengths are 3.48 Å. All Ba(1)-Ga(2) bond lengths are 3.55 Å. The Ba(1)-Pb(1) bond length is 3.67 Å. In the second Ba site, Ba(2) is bonded in a 9-coordinate geometry to three equivalent Ga(1), three equivalent Ga(2), and three equivalent Pb(1) atoms. All Ba(2)-Ga(1) bond lengths are 3.74 Å. All Ba(2)-Ga(2) bond lengths are 3.63 Å. All Ba(2)-Pb(1) bond lengths are 4.16 Å. In the third Ba site, Ba(3) is bonded to two equivalent Ga(1) and three equivalent Pb(1) atoms to form corner-sharing BaGa2Pb3 trigonal bipyramids. Both Ba(3)-Ga(1) bond lengths are 3.64 Å. All Ba(3)-Pb(1) bond lengths are 3.48 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 10-coordinate geometry to one Ba(3), three equivalent Ba(1), three equivalent Ba(2), and three equivalent Ga(2) atoms. All Ga(1)-Ga(2) bond lengths are 2.67 Å. In the second Ga site, Ga(2) is bonded in a distorted q6 geometry to two equivalent Ba(2), four equivalent Ba(1), two equivalent Ga(1), and two equivalent Ga(2) atoms. Both Ga(2)-Ga(2) bond lengths are 2.76 Å. Pb(1) is bonded to two equivalent Ba(1), three equivalent Ba(3), and six equivalent Ba(2) atoms to form distorted face-sharing PbBa11 trigonal bipyramids.