  This letter investigates the applications and extensions of the resource
theory of quantum superposition within the realm of quantum chemistry.
Specifically, we explore aromaticity, a fundamental concept originally
developed to elucidate the structural symmetry, energetic stability, and
chemical reactivity of benzene and its derivatives. While aromaticity and its
counterpart, antiaromaticity, are associated with the delocalization of
electrons between nonorthogonal atomic orbitals, they lack a universally
accepted and comprehensive definition. We demonstrate that the genuine quantum
superposition exhibited by biorthogonal atomic orbitals effectively captures
the aromaticity order of representative monocyclic molecules. These findings
reveal that the quantum resource theories hold significant implications,
offering fresh insights into our comprehension of chemical bonding phenomena.
