CeIrAlH2 crystallizes in the hexagonal P6_3/mmc space group. Ce(1) is bonded in a hexagonal planar geometry to six equivalent H(1) atoms. Ir(1) is bonded to three equivalent Al(1) and two equivalent H(1) atoms to form corner-sharing IrAl3H2 trigonal bipyramids. Al(1) is bonded in a trigonal planar geometry to three equivalent Ir(1) atoms. H(1) is bonded to three equivalent Ce(1) and one Ir(1) atom to form a mixture of edge and corner-sharing HCe3Ir trigonal pyramids.
CeIrAlH2 crystallizes in the hexagonal P6_3/mmc space group. Ce(1) is bonded in a hexagonal planar geometry to six equivalent H(1) atoms. All Ce(1)-H(1) bond lengths are 2.55 Å. Ir(1) is bonded to three equivalent Al(1) and two equivalent H(1) atoms to form corner-sharing IrAl3H2 trigonal bipyramids. All Ir(1)-Al(1) bond lengths are 2.52 Å. Both Ir(1)-H(1) bond lengths are 1.70 Å. Al(1) is bonded in a trigonal planar geometry to three equivalent Ir(1) atoms. H(1) is bonded to three equivalent Ce(1) and one Ir(1) atom to form a mixture of edge and corner-sharing HCe3Ir trigonal pyramids.