BHBe ← F: A Case of Extremely Strong Dative Bond.

Chemical bonding has attracted chemists since its inception. Dative bonding between a donor and acceptor moiety is also an important phenomenon, which results in stabilization of many chemical compounds. Herein, we show that an extremely strong dative bond is possible between a fluoride ion and a beryllium center which is a part of a half-sandwich complex, BHBe.

σ-Aromaticity in planar pentacoordinate aluminium and gallium clusters.

Planar hypercoordinate structures are gaining immense attention due to the shift from common paradigm. Herein, our high level ab initio calculations predict that planar pentacoordinate aluminium and gallium centres in CuAl and CuGa clusters are global minima in their singlet ground states. These clusters are thermodynamically and kinetically very stable.