Aromaticity

Spectroscopic Manifestations of (Anti)Aromaticity in Oxidized and Reduced Porphyrin and Norcorrole
Abstract Aromaticity and antiaromaticity are foundational principes in organic chemistry, regularly invoked to explain stability, …
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Spectroscopic Manifestations of (Anti)Aromaticity in Oxidized and Reduced Porphyrin and Norcorrole
Global aromaticity at the nanoscale
Does aromaticity have a size limit? Evidence is presented for global aromaticity in porphyrin nanorings with circuits of up to 162 …
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Global aromaticity at the nanoscale
Aromaticity and Antiaromaticity in the Excited States of Porphyrin Nanorings
Aromaticity can be a useful concept for predicting the behavior of excited states. Here we show that π-conjugated porphyrin nanorings …
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Aromaticity and Antiaromaticity in the Excited States of Porphyrin Nanorings
Global Aromaticity and Antiaromaticity in Porphyrin Nanoring Anions
Doping, through oxidation or reduction, is often used to modify the properties of π-conjugated oligomers. In most cases, the resulting …
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Global Aromaticity and Antiaromaticity in Porphyrin Nanoring Anions
Watching Bonds Move in a Large Antiaromatic Ring
In antiaromatic molecules, single and double bonds interconvert via a process called bond-shift valence tautomerization, which is often …
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Watching Bonds Move in a Large Antiaromatic Ring
Detection of a weak ring current in a nonaromatic porphyrin nanoring using magnetic circular dichroism
We compare the absorption and magnetic circular dichroism (MCD) spectra of a series of porphyrin oligomers – dimer, tetramer, and …
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Detection of a weak ring current in a nonaromatic porphyrin nanoring using magnetic circular dichroism
Aromatic and antiaromatic ring currents in a molecular nanoring
Aromatic and antiaromatic molecules—which have delocalized circuits of [4n + 2] or [4n] electrons, respectively—exhibit ring currents …
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Aromatic and antiaromatic ring currents in a molecular nanoring