Chemical Bonding and Aromaticity in Poly-heterocyclic Compounds

Abstract

This chapter is devoted to a theoretical analysis of the nature of chemical bonding, and in particular the aromaticity, of some intriguing poly-heterocyclic compounds which have recently been synthesized including the sulflowers and derivatives. The novel concept of disk aromaticity proposed as a measure of the aromatic character of planar double-ring boron clusters is applied in this context for poly-heterocyclic compounds.