Nd2Bi crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 8-coordinate geometry to four equivalent Nd(1) and four equivalent Bi(1) atoms. In the second Nd site, Nd(2) is bonded to five equivalent Bi(1) atoms to form a mixture of distorted edge and corner-sharing NdBi5 square pyramids. Bi(1) is bonded in a 9-coordinate geometry to four equivalent Nd(1) and five equivalent Nd(2) atoms.
Nd2Bi crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 8-coordinate geometry to four equivalent Nd(1) and four equivalent Bi(1) atoms. All Nd(1)-Nd(1) bond lengths are 3.27 Å. All Nd(1)-Bi(1) bond lengths are 3.42 Å. In the second Nd site, Nd(2) is bonded to five equivalent Bi(1) atoms to form a mixture of distorted edge and corner-sharing NdBi5 square pyramids. There is one shorter (3.30 Å) and four longer (3.34 Å) Nd(2)-Bi(1) bond lengths. Bi(1) is bonded in a 9-coordinate geometry to four equivalent Nd(1) and five equivalent Nd(2) atoms.