Fig. 1: Aromatic boron species with globally 4n π electrons. | Communications Chemistry

Fig. 1: Aromatic boron species with globally 4n π electrons.

From: Open questions in boron species with globally 4n π systems

Fig. 1

a Molecular structures and schematic drawings of concentric doubly π-aromatic systems. b Molecular structures and schematic drawings of ribbon aromatic systems. c Synthesis of isolable B4C2 carborane (Dip = 2,6-diisopropylphenyl. Me = methyl).

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