Effects of benzoheterocyclic annelation on the s-indacene core: a computational analysis.

ABSTRACT: Aromaticity and antiaromaticity are pivotal concepts in chemistry, with significant implications for molecular properties and reactivity. In particular, thanks to their increased conductivity and small HOMO-LUMO energy gaps, antiaromatic molecules are promising for use in organic electronics. The inherent instability of such molecules is often addressed by carbocyclic fusion, which also reduces the antiaromaticity of the core structure. Herein, we have employed a computational approach to explore the effects of heterocyclic fusion on the s-indacene core, focusing on three main aspects: the impact of the heteroatom, the heterocycle, and extended conjugation. We found that the heteroatoms themselves can substantially modulate antiaromaticity, and that the site of substitution plays a

SUBMITTER: Warren GI 

PROVIDER: S-EPMC11575598 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature