We report the synthesis, characterization and DFT studies of a transition-metal-encapsulated superatom compound, [K(2,2,2-crypt)]3[Au@Pb12]·2py, which adopts a distorted symmetry instead of the icosahedral structure due to the second-order Jahn–Teller effect.… Click to show full abstract
We report the synthesis, characterization and DFT studies of a transition-metal-encapsulated superatom compound, [K(2,2,2-crypt)]3[Au@Pb12]·2py, which adopts a distorted symmetry instead of the icosahedral structure due to the second-order Jahn–Teller effect. DFT computations revealed its chemical bonding nature and aromatic character, and assigned the formal electronic structure as [Au−@Pb122−]3−.
               
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