RbInH3 crystallizes in the cubic Fm-3m space group. Rb(1) is bonded to twelve equivalent H(1) atoms to form RbH12 cuboctahedra that share corners with twelve equivalent Rb(1)H12 cuboctahedra, faces with six equivalent Rb(1)H12 cuboctahedra, faces with four equivalent In(1)H6 octahedra, and faces with four equivalent In(2)H6 octahedra. There are two inequivalent In sites. In the first In site, In(1) is bonded to six equivalent H(1) atoms to form InH6 octahedra that share corners with six equivalent In(2)H6 octahedra and faces with eight equivalent Rb(1)H12 cuboctahedra. The corner-sharing octahedra are not tilted. In the second In site, In(2) is bonded to six equivalent H(1) atoms to form InH6 octahedra that share corners with six equivalent In(1)H6 octahedra and faces with eight equivalent Rb(1)H12 cuboctahedra. The corner-sharing octahedra are not tilted. H(1) is bonded in a distorted single-bond geometry to four equivalent Rb(1), one In(1), and one In(2) atom.
RbInH3 crystallizes in the cubic Fm-3m space group. Rb(1) is bonded to twelve equivalent H(1) atoms to form RbH12 cuboctahedra that share corners with twelve equivalent Rb(1)H12 cuboctahedra, faces with six equivalent Rb(1)H12 cuboctahedra, faces with four equivalent In(1)H6 octahedra, and faces with four equivalent In(2)H6 octahedra. All Rb(1)-H(1) bond lengths are 3.14 Å. There are two inequivalent In sites. In the first In site, In(1) is bonded to six equivalent H(1) atoms to form InH6 octahedra that share corners with six equivalent In(2)H6 octahedra and faces with eight equivalent Rb(1)H12 cuboctahedra. The corner-sharing octahedra are not tilted. All In(1)-H(1) bond lengths are 1.99 Å. In the second In site, In(2) is bonded to six equivalent H(1) atoms to form InH6 octahedra that share corners with six equivalent In(1)H6 octahedra and faces with eight equivalent Rb(1)H12 cuboctahedra. The corner-sharing octahedra are not tilted. All In(2)-H(1) bond lengths are 2.43 Å. H(1) is bonded in a distorted single-bond geometry to four equivalent Rb(1), one In(1), and one In(2) atom.