Porphyrinoids, a unique platform for exploring excited-state aromaticity

J Kim, J Oh, A Osuka, D Kim - Chemical Society Reviews, 2022 - pubs.rsc.org
Recently, Baird (anti) aromaticity has been referred to as a description of excited-state (anti)
aromaticity. With the term of Baird's rule, recent studies have intensively verified that the …

Photochemistry Driven by Excited‐State Aromaticity Gain or Antiaromaticity Relief

J Yan, T Slanina, J Bergman… - Chemistry–A European …, 2023 - Wiley Online Library
Gain of aromaticity or relief of antiaromaticity along a reaction path are important factors to
consider in mechanism studies. Analysis of such changes along potential energy surfaces …

Relief of excited-state antiaromaticity enables the smallest red emitter

H Kim, W Park, Y Kim, M Filatov, CH Choi… - Nature …, 2021 - nature.com
It is commonly accepted that a large π-conjugated system is necessary to realize low-energy
electronic transitions. Contrary to this prevailing notion, we present a new class of light …

Aromaticity reversal induced by vibrations in cyclo [16] carbon

I Rončević, FJ Leslie, M Rossmannek… - Journal of the …, 2023 - ACS Publications
Aromaticity is typically regarded as an intrinsic property of a molecule, correlated with
electron delocalization, stability, and other properties. Small variations in the molecular …

Baird's rules at the tipping point

LJ Karas, JI Wu - Nature chemistry, 2022 - nature.com
Baird’s rules at the tipping point | Nature Chemistry Skip to main content Thank you for visiting
nature.com. You are using a browser version with limited support for CSS. To obtain the best …

Single‐Benzene Dual‐Emitters Harness Excited‐State Antiaromaticity for White Light Generation and Fluorescence Imaging

Y Kim, H Kim, JB Son, M Filatov… - Angewandte Chemie …, 2023 - Wiley Online Library
Molecular emitters simultaneously generating light at different wavelengths have wide
applications. With a small molecule, however, it is challenging to realize two independent …

[HTML][HTML] The application of aromaticity and antiaromaticity to reaction mechanisms

Q Zhu, S Chen, D Chen, L Lin, K Xiao, L Zhao… - Fundamental …, 2023 - Elsevier
Aromaticity, in general, can promote a given reaction by stabilizing a transition state or a
product via a mobility of π electrons in a cyclic structure. Similarly, such a promotion could …

Interplay of steric effects and aromaticity reversals to expand the structural/electronic responses of dihydrophenazines

X Jin, S Li, L Guo, J Hua, DH Qu, J Su… - Journal of the …, 2022 - ACS Publications
To gain insights into the coupling of conformational and electronic variables, we exploited
steric hindrance to modulate a polycyclic skeleton with a bent conformation in the S0 state …

Localized antiaromaticity hotspot drives reductive dehydrogenative cyclizations in bis-and mono-helicenes

Z Zhou, DT Egger, C Hu, M Pennachio… - Journal of the …, 2022 - ACS Publications
We describe reductive dehydrogenative cyclizations that form hepta-, nona-, and decacyclic
anionic graphene subunits from mono-and bis-helicenes with an embedded five-membered …

meta-Fluorophores: an uncharted ocean of opportunities

T Chatterjee, M Mandal, S Mardanya… - Chemical …, 2023 - pubs.rsc.org
meta-Fluorophores (MFs) are unique ultra-light (in terms of molecular weight (MW))
fluorophores exhibiting luminescence with a wide colour gamut ranging from blue to the …