LiTbSn2 crystallizes in the orthorhombic Cmcm space group. Li(1) is bonded in a 5-coordinate geometry to four equivalent Tb(1), one Sn(1), and four equivalent Sn(2) atoms. Tb(1) is bonded in a 14-coordinate geometry to four equivalent Li(1), four equivalent Sn(2), and six equivalent Sn(1) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a distorted single-bond geometry to one Li(1) and six equivalent Tb(1) atoms. In the second Sn site, Sn(2) is bonded to four equivalent Li(1) and four equivalent Tb(1) atoms to form a mixture of distorted face and edge-sharing SnLi4Tb4 tetrahedra.
LiTbSn2 crystallizes in the orthorhombic Cmcm space group. Li(1) is bonded in a 5-coordinate geometry to four equivalent Tb(1), one Sn(1), and four equivalent Sn(2) atoms. All Li(1)-Tb(1) bond lengths are 3.39 Å. The Li(1)-Sn(1) bond length is 2.48 Å. There are two shorter (2.65 Å) and two longer (2.67 Å) Li(1)-Sn(2) bond lengths. Tb(1) is bonded in a 14-coordinate geometry to four equivalent Li(1), four equivalent Sn(2), and six equivalent Sn(1) atoms. There are two shorter (3.47 Å) and two longer (3.60 Å) Tb(1)-Sn(2) bond lengths. There are four shorter (3.36 Å) and two longer (3.59 Å) Tb(1)-Sn(1) bond lengths. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a distorted single-bond geometry to one Li(1) and six equivalent Tb(1) atoms. In the second Sn site, Sn(2) is bonded to four equivalent Li(1) and four equivalent Tb(1) atoms to form a mixture of distorted face and edge-sharing SnLi4Tb4 tetrahedra.