Synthesis of Ba(II) analogs of Ln(II)-in-(2.2.2-cryptand) and layered hexagonal net Ln(II) complexes, [(THF)Cs(µ–η5:η5–C5H4SiMe3)3LnII]n

Analogs of structurally unusual lanthanide(II) complexes involving the alkaline earth metal adjacent to the lanthanide series, barium, were synthesized and structurally characterized for comparison of the 4f orbital compounds to those with no f orbital component. Ba(II)-in-(2.2.2-cryptand) and a layered compound comprised of hexagonal Ba3Cs3(µ–η5:η5–C5H4SiMe3)6 components are described.