InSb3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. In(1) is bonded to twelve equivalent Sb(1) atoms to form InSb12 cuboctahedra that share corners with twelve equivalent In(1)Sb12 cuboctahedra, edges with twenty-four equivalent Sb(1)In4Sb8 cuboctahedra, faces with six equivalent In(1)Sb12 cuboctahedra, and faces with twelve equivalent Sb(1)In4Sb8 cuboctahedra. Sb(1) is bonded to four equivalent In(1) and eight equivalent Sb(1) atoms to form distorted SbIn4Sb8 cuboctahedra that share corners with twelve equivalent Sb(1)In4Sb8 cuboctahedra, edges with eight equivalent In(1)Sb12 cuboctahedra, edges with sixteen equivalent Sb(1)In4Sb8 cuboctahedra, faces with four equivalent In(1)Sb12 cuboctahedra, and faces with fourteen equivalent Sb(1)In4Sb8 cuboctahedra.
InSb3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. In(1) is bonded to twelve equivalent Sb(1) atoms to form InSb12 cuboctahedra that share corners with twelve equivalent In(1)Sb12 cuboctahedra, edges with twenty-four equivalent Sb(1)In4Sb8 cuboctahedra, faces with six equivalent In(1)Sb12 cuboctahedra, and faces with twelve equivalent Sb(1)In4Sb8 cuboctahedra. All In(1)-Sb(1) bond lengths are 3.40 Å. Sb(1) is bonded to four equivalent In(1) and eight equivalent Sb(1) atoms to form distorted SbIn4Sb8 cuboctahedra that share corners with twelve equivalent Sb(1)In4Sb8 cuboctahedra, edges with eight equivalent In(1)Sb12 cuboctahedra, edges with sixteen equivalent Sb(1)In4Sb8 cuboctahedra, faces with four equivalent In(1)Sb12 cuboctahedra, and faces with fourteen equivalent Sb(1)In4Sb8 cuboctahedra. All Sb(1)-Sb(1) bond lengths are 3.40 Å.