Nb4Rh crystallizes in the orthorhombic Fmmm space group. There are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded in a 2-coordinate geometry to two equivalent Nb(2) and two equivalent Rh(1) atoms. In the second Nb site, Nb(2) is bonded in a distorted body-centered cubic geometry to two equivalent Nb(1) and six equivalent Nb(2) atoms. Rh(1) is bonded in a 4-coordinate geometry to four equivalent Nb(1) atoms.
Nb4Rh crystallizes in the orthorhombic Fmmm space group. There are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded in a 2-coordinate geometry to two equivalent Nb(2) and two equivalent Rh(1) atoms. Both Nb(1)-Nb(2) bond lengths are 2.89 Å. Both Nb(1)-Rh(1) bond lengths are 2.71 Å. In the second Nb site, Nb(2) is bonded in a distorted body-centered cubic geometry to two equivalent Nb(1) and six equivalent Nb(2) atoms. There are four shorter (2.84 Å) and two longer (2.91 Å) Nb(2)-Nb(2) bond lengths. Rh(1) is bonded in a 4-coordinate geometry to four equivalent Nb(1) atoms.