Pr2PbSe4 crystallizes in the tetragonal I-42d space group. Pr(1) is bonded to eight equivalent Se(1) atoms to form a mixture of distorted face, corner, and edge-sharing PrSe8 hexagonal bipyramids. Pb(1) is bonded in a 8-coordinate geometry to eight equivalent Se(1) atoms. Se(1) is bonded in a 6-coordinate geometry to four equivalent Pr(1) and two equivalent Pb(1) atoms.
Pr2PbSe4 crystallizes in the tetragonal I-42d space group. Pr(1) is bonded to eight equivalent Se(1) atoms to form a mixture of distorted face, corner, and edge-sharing PrSe8 hexagonal bipyramids. There are a spread of Pr(1)-Se(1) bond distances ranging from 3.02-3.26 Å. Pb(1) is bonded in a 8-coordinate geometry to eight equivalent Se(1) atoms. There are four shorter (3.10 Å) and four longer (3.28 Å) Pb(1)-Se(1) bond lengths. Se(1) is bonded in a 6-coordinate geometry to four equivalent Pr(1) and two equivalent Pb(1) atoms.