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An atropisomeric M(2)L(4) cage mixture displaying guest-induced convergence and strong guest emission in water
Introduction of atropisomeric axes into a bent bispyridine ligand leads to the quantitative formation of a complex mixture of atropisomeric M(2)L(4) cages upon treatment with metal ions. Whereas the isomer ratio of the obtained cage mixture, consisting of up to 42 isomers, is insensitive to temperat...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8163439/ https://www.ncbi.nlm.nih.gov/pubmed/34123086 http://dx.doi.org/10.1039/d0sc03223a |
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author | Tsutsui, Takahiro Catti, Lorenzo Yoza, Kenji Yoshizawa, Michito |
author_facet | Tsutsui, Takahiro Catti, Lorenzo Yoza, Kenji Yoshizawa, Michito |
author_sort | Tsutsui, Takahiro |
collection | PubMed |
description | Introduction of atropisomeric axes into a bent bispyridine ligand leads to the quantitative formation of a complex mixture of atropisomeric M(2)L(4) cages upon treatment with metal ions. Whereas the isomer ratio of the obtained cage mixture, consisting of up to 42 isomers, is insensitive to temperature and solvent, the quantitative convergence from the mixture to a single isomer is accomplished upon encapsulation of a large spherical guest, namely fullerene C(60). The observed isomerization with other guests depends largely on their size and shape (e.g., <10 and 82% convergence with planar triphenylene and bowl-shaped corannulene guests, respectively). Besides the unusual guest-induced convergence, the present cage mixture displays the strongest guest emission (Φ(F) = 68%) among previously reported M(n)L(m) cages and capsules, upon encapsulation of a BODIPY dye in water. |
format | Online Article Text |
id | pubmed-8163439 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-81634392021-06-11 An atropisomeric M(2)L(4) cage mixture displaying guest-induced convergence and strong guest emission in water Tsutsui, Takahiro Catti, Lorenzo Yoza, Kenji Yoshizawa, Michito Chem Sci Chemistry Introduction of atropisomeric axes into a bent bispyridine ligand leads to the quantitative formation of a complex mixture of atropisomeric M(2)L(4) cages upon treatment with metal ions. Whereas the isomer ratio of the obtained cage mixture, consisting of up to 42 isomers, is insensitive to temperature and solvent, the quantitative convergence from the mixture to a single isomer is accomplished upon encapsulation of a large spherical guest, namely fullerene C(60). The observed isomerization with other guests depends largely on their size and shape (e.g., <10 and 82% convergence with planar triphenylene and bowl-shaped corannulene guests, respectively). Besides the unusual guest-induced convergence, the present cage mixture displays the strongest guest emission (Φ(F) = 68%) among previously reported M(n)L(m) cages and capsules, upon encapsulation of a BODIPY dye in water. The Royal Society of Chemistry 2020-07-20 /pmc/articles/PMC8163439/ /pubmed/34123086 http://dx.doi.org/10.1039/d0sc03223a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/ |
spellingShingle | Chemistry Tsutsui, Takahiro Catti, Lorenzo Yoza, Kenji Yoshizawa, Michito An atropisomeric M(2)L(4) cage mixture displaying guest-induced convergence and strong guest emission in water |
title | An atropisomeric M(2)L(4) cage mixture displaying guest-induced convergence and strong guest emission in water |
title_full | An atropisomeric M(2)L(4) cage mixture displaying guest-induced convergence and strong guest emission in water |
title_fullStr | An atropisomeric M(2)L(4) cage mixture displaying guest-induced convergence and strong guest emission in water |
title_full_unstemmed | An atropisomeric M(2)L(4) cage mixture displaying guest-induced convergence and strong guest emission in water |
title_short | An atropisomeric M(2)L(4) cage mixture displaying guest-induced convergence and strong guest emission in water |
title_sort | atropisomeric m(2)l(4) cage mixture displaying guest-induced convergence and strong guest emission in water |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8163439/ https://www.ncbi.nlm.nih.gov/pubmed/34123086 http://dx.doi.org/10.1039/d0sc03223a |
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