Keywords: RLi-tetramer-tetrahedron-vs-cube-2D.png Diagram showing that a tetrameric organolithium cluster can be described as a distorted cubane with alternating Li and C vertices or equivalently as a tetrahedron with Li vertices and C atoms floating above each face Based on various crystal structures such as MeLi <sub>4</sub> in http //dx doi org/10 1016/S0022-328X 00 83621-9 J Organomet Chem 1970 21 265 “268 and tBuLi <sub>4</sub> in http //dx doi org/10 1016/S0022-328X 00 83621-9 Angew Chem Int Ed Engl 1993 32 580 “582 Own 2011-12-30 Ben Mills Benjah-bmm27 Images by Ben Mills Organolithium compounds |