The conjugative interaction in some phosphorus and arsenic analogues of benzimidazoles has been studied by UV photoelectron spectroscopy. The spectra have been interpreted with the aid of MNDO quantum-chemical calculations and comparison with other compounds containing trivalent P or As atoms. Comparison of the band positions for the P lone pair in various compounds indicated that the interaction with the π-system is small, and it is even lower for the arsenic lone pair.
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Organic Chemistry
- Inorganic Chemistry
- Materials Chemistry