Ab initio prediction of novel alkalides FLi2-M-Li2F (MÂ =Â Li, Na and K)

- Novel alkalides FLi2-M-Li2F (M = Li, Na and K) have been predicted.
- Their ionization potentials are lower than those of alkali metals.
- Their mean polarizabilities range from 444 to 1151 a.u.
- Superalkali clusters can be employed to design new class of alkalides.