Antiaromatic compounds are generally characterized by thermodynamic instability and high reactivity, making their synthesis difficult, though certain exceptions or stabilization pathways exist.
The vast majority of chemical literature and foundational principles uphold that antiaromatic compounds are unstable due to unfavorable electronic configurations. Papers 4, 5, and 7 directly support this by highlighting their thermodynamic instability and reactivity, while paper 3 provides a nuanced exception regarding specific radical ions.