The large instability of heterophosphete compounds, composed of a four-membered unsaturated ring with a pentavalent phosphorus atom and a heteroatom, has been identified and characterised by first-principle molecular orbital computations, at several levels of theory. It has been shown that strong electron-withdrawing groups bound to the phosphorus atom are able to stabilize the system. The extent of antiaromaticity of these compounds is examined and quantified by a linear aromatic and antiaromatic scale.
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Organic Chemistry