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https://doi.org/10.26434/chemr...
Article . 2023 . Peer-reviewed
License: CC BY NC ND
Data sources: Crossref

Supramolecular Assemblies of Closely Stacked Antiaromatic Ni(II) Norcorrole Dimers via Homochiral and Heterochiral Self-Sorting

Authors: Si-Yu Liu; Shusaku Ukai; Ryo Nozawa; Norihito Fukui; Ryota Sugimori; Ryohei Kishi; Hiroshi Shinokubo;

Supramolecular Assemblies of Closely Stacked Antiaromatic Ni(II) Norcorrole Dimers via Homochiral and Heterochiral Self-Sorting

Abstract

Stacking between aromatic π-systems is fundamental to the design of supramolecular assemblies. Recently, π–π stacked antiaromatic π-systems have received considerable attention as some antiaromatic compounds can form closely stacked structures with substantial in-termolecular orbital interactions, resulting in the emergence of stacked-ring aromaticity. Here, we report three covalently linked norcor-role dimers that self-assemble to form supramolecular architectures. A 2,2’-linked norcorrole dimer with 3,5-di-tert-butylphenyl groups forms a face-to-face stacked dimer both in solid and solution states via homochiral self-sorting. Its association constant in solution is (3.6 ± 1.7) × 105 M–1 at 20 °C. In the solid state, 3,3’-linked norcorrole dimers with 3,5-di-tert-butylphenyl and phenyl groups afford macro-cyclic and helical supramolecular assemblies via heterochiral and homochiral self-sorting, respectively. Notably, the subtle modification in the substituent resulted in a complete change in the structure of the aggregates and the chiral self-sorting mode. The present findings demonstrate that structural manipulation in antiaromatic monomer units leads to the formation of various supramolecular assemblies on the basis of the attractive interactions between antiaromatic π-systems.

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
hybrid