Abstract
A phosphorus-containing hybrid porphyrin was successfully prepared via the BF₃-promoted dehydrative condensation between sigma⁴-phosphatripyrrane and 2,5-bis[hydroxy(phenyl)methyl]thiophene. The NMR and UV-Vis absorption spectra, electrochemical measurements, and DFT calculations have revealed that the sigma³-P,N₂,S-hybrid porphyrin exhibits high aromaticity as an 18pi-electron system in terms of both geometric and magnetic criteria.