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Article: Tuning radical interactions in trisradical tricationic complexes by varying host-cavity sizes

TitleTuning radical interactions in trisradical tricationic complexes by varying host-cavity sizes
Authors
Issue Date2020
Citation
Chemical Science, 2020, v. 11, n. 1, p. 107-112 How to Cite?
AbstractAlthough host-guest pairing interactions between bisradical dicationic cyclobis(paraquat-p-phenylene) (BB2(+)) and the bipyridinium radical cation (BIPY+) have been studied extensively, host molecules other than BB2(+) are few and far between. Herein, four bisradical dicationic cyclophanes with tunable cavity sizes are investigated as new bisradical dicationic hosts for accommodating the methyl viologen radical cation (MV+) to form trisradical tricationic complexes. The structure-property relationships between cavity sizes and binding affinities have been established by comprehensive solution and solid-state characterizations as well as DFT calculations. The association constants of the four new trisradical tricationic complexes are found to range between 7400 and 170 000 M-1, with the strongest one being 4.3 times higher than that for [MV⊂BB]3(+). The facile accessibility and tunable stability of these new trisradical tricationic complexes make them attractive redox-controlled recognition motifs for further use in supramolecular chemistry and mechanostereochemistry.
Persistent Identifierhttp://hdl.handle.net/10722/333403
ISSN
2023 Impact Factor: 7.6
2023 SCImago Journal Rankings: 2.333
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorCai, Kang-
dc.contributor.authorShi, Yi-
dc.contributor.authorCao, Changsu-
dc.contributor.authorVemuri, Suneal-
dc.contributor.authorCui, Binbin-
dc.contributor.authorShen, Dengke-
dc.contributor.authorWu, Huang-
dc.contributor.authorZhang, Long-
dc.contributor.authorQiu, Yunyan-
dc.contributor.authorChen, Hongliang-
dc.contributor.authorJiao, Yang-
dc.contributor.authorStern, Charlotte L.-
dc.contributor.authorAlsubaie, Fehaid M.-
dc.contributor.authorXiao, Hai-
dc.contributor.authorLi, Jun-
dc.contributor.authorFraser Stoddart, J.-
dc.date.accessioned2023-10-06T05:19:06Z-
dc.date.available2023-10-06T05:19:06Z-
dc.date.issued2020-
dc.identifier.citationChemical Science, 2020, v. 11, n. 1, p. 107-112-
dc.identifier.issn2041-6520-
dc.identifier.urihttp://hdl.handle.net/10722/333403-
dc.description.abstractAlthough host-guest pairing interactions between bisradical dicationic cyclobis(paraquat-p-phenylene) (BB2(+)) and the bipyridinium radical cation (BIPY+) have been studied extensively, host molecules other than BB2(+) are few and far between. Herein, four bisradical dicationic cyclophanes with tunable cavity sizes are investigated as new bisradical dicationic hosts for accommodating the methyl viologen radical cation (MV+) to form trisradical tricationic complexes. The structure-property relationships between cavity sizes and binding affinities have been established by comprehensive solution and solid-state characterizations as well as DFT calculations. The association constants of the four new trisradical tricationic complexes are found to range between 7400 and 170 000 M-1, with the strongest one being 4.3 times higher than that for [MV⊂BB]3(+). The facile accessibility and tunable stability of these new trisradical tricationic complexes make them attractive redox-controlled recognition motifs for further use in supramolecular chemistry and mechanostereochemistry.-
dc.languageeng-
dc.relation.ispartofChemical Science-
dc.titleTuning radical interactions in trisradical tricationic complexes by varying host-cavity sizes-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1039/c9sc04860j-
dc.identifier.scopuseid_2-s2.0-85076977163-
dc.identifier.volume11-
dc.identifier.issue1-
dc.identifier.spage107-
dc.identifier.epage112-
dc.identifier.eissn2041-6539-
dc.identifier.isiWOS:000503486800008-

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