Formation of the unprecedented trilithio-capped heteroadamantanyl iminoalane anion [(HAI)4(NPh)6{Li(OEt2)}3]-: An open cage derived from a rhombododecahedron

Article abstract of DOI:10.1002/1521-3773(20001103)39:21<3879::AID-ANIE3879>3.0.CO;2-V

An Al/N adamantanyl frame with three of its Al₃N₃ faces capped by Li (see picture; E = NPh) forms the core of the title anion. Formation of the charge-separated species, and the unique arrangement adopted by the cage atoms is rationalized through analysis of its solid-state structure and by ab initio calculations.