Control and Switching of Aromaticity in Various All-Aza-Expanded Porphyrins: Spectroscopic and Theoretical Analyses.
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DOI: 10.1021/acs.chemrev.6b00313
Abstract: Modification of aromaticity is regarded as one of the most interesting and important research topics in the field of physical organic chemistry. Particularly, porphyrins and their analogues (porphyrinoids) are attractive molecules for exploring various types… read more here.
Keywords: aromaticity various; aromaticity; expanded porphyrins; switching aromaticity ... See more keywords
Amethyrin-type expanded porphyrins that display anti-aromatic character upon protonation.
Sign Up to like & getrecommendations! Published in 2020 at "Chemical communications"
DOI: 10.1039/d0cc04400h
Abstract: The use of protonation to switch nonaromatic expanded porphyrins to their corresponding anti-aromatic forms has not been widely explored. Here, we show that free-base pyriamethyrin and dipyriamethyrin display nonaromatic character, as inferred from NMR spectroscopic… read more here.
Keywords: amethyrin type; anti aromatic; expanded porphyrins; type expanded ... See more keywords