InSn3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. In(1) is bonded to twelve Sn(1,1) atoms to form InSn12 cuboctahedra that share corners with six equivalent In(1)Sn12 cuboctahedra; corners with twelve Sn(1,1)In4Sn8 cuboctahedra; edges with eighteen Sn(1,1)In4Sn8 cuboctahedra; faces with eight equivalent In(1)Sn12 cuboctahedra; and faces with twelve Sn(1,1)In4Sn8 cuboctahedra. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to four equivalent In(1) and eight Sn(1,1) atoms to form distorted SnIn4Sn8 cuboctahedra that share corners with four equivalent In(1)Sn12 cuboctahedra; corners with fourteen Sn(1,1)In4Sn8 cuboctahedra; edges with six equivalent In(1)Sn12 cuboctahedra; edges with twelve Sn(1,1)In4Sn8 cuboctahedra; faces with four equivalent In(1)Sn12 cuboctahedra; and faces with sixteen Sn(1,1)In4Sn8 cuboctahedra. In the second Sn site, Sn(1) is bonded to four equivalent In(1) and eight equivalent Sn(1) atoms to form distorted SnIn4Sn8 cuboctahedra that share corners with four equivalent In(1)Sn12 cuboctahedra; corners with fourteen Sn(1,1)In4Sn8 cuboctahedra; edges with six equivalent In(1)Sn12 cuboctahedra; edges with twelve equivalent Sn(1)In4Sn8 cuboctahedra; faces with four equivalent In(1)Sn12 cuboctahedra; and faces with sixteen Sn(1,1)In4Sn8 cuboctahedra.
InSn3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. In(1) is bonded to twelve Sn(1,1) atoms to form InSn12 cuboctahedra that share corners with six equivalent In(1)Sn12 cuboctahedra; corners with twelve Sn(1,1)In4Sn8 cuboctahedra; edges with eighteen Sn(1,1)In4Sn8 cuboctahedra; faces with eight equivalent In(1)Sn12 cuboctahedra; and faces with twelve Sn(1,1)In4Sn8 cuboctahedra. There are six shorter (3.31 Å) and six longer (3.43 Å) In(1)-Sn(1,1) bond lengths. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to four equivalent In(1) and eight Sn(1,1) atoms to form distorted SnIn4Sn8 cuboctahedra that share corners with four equivalent In(1)Sn12 cuboctahedra; corners with fourteen Sn(1,1)In4Sn8 cuboctahedra; edges with six equivalent In(1)Sn12 cuboctahedra; edges with twelve Sn(1,1)In4Sn8 cuboctahedra; faces with four equivalent In(1)Sn12 cuboctahedra; and faces with sixteen Sn(1,1)In4Sn8 cuboctahedra. There are a spread of Sn(1)-Sn(1,1) bond distances ranging from 3.28-3.41 Å. In the second Sn site, Sn(1) is bonded to four equivalent In(1) and eight equivalent Sn(1) atoms to form distorted SnIn4Sn8 cuboctahedra that share corners with four equivalent In(1)Sn12 cuboctahedra; corners with fourteen Sn(1,1)In4Sn8 cuboctahedra; edges with six equivalent In(1)Sn12 cuboctahedra; edges with twelve equivalent Sn(1)In4Sn8 cuboctahedra; faces with four equivalent In(1)Sn12 cuboctahedra; and faces with sixteen Sn(1,1)In4Sn8 cuboctahedra.