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Observation of Chiral-selective room-temperature phosphorescence enhancement via chirality-dependent energy transfer

Pure organic room-temperature phosphorescence (RTP), particularly from guest-host doped systems, has seen exponential growth in the last several years due to their high modulation flexibility, and yet challenges remain with respect to mechanistic elucidations and advantageous applications. Here we s...

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Autores principales: Chen, Biao, Huang, Wenhuan, Zhang, Guoqing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10024683/
https://www.ncbi.nlm.nih.gov/pubmed/36934094
http://dx.doi.org/10.1038/s41467-023-37157-w
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author Chen, Biao
Huang, Wenhuan
Zhang, Guoqing
author_facet Chen, Biao
Huang, Wenhuan
Zhang, Guoqing
author_sort Chen, Biao
collection PubMed
description Pure organic room-temperature phosphorescence (RTP), particularly from guest-host doped systems, has seen exponential growth in the last several years due to their high modulation flexibility, and yet challenges remain with respect to mechanistic elucidations and advantageous applications. Here we show that by constructing guest-host doped RTP systems from chiral components, namely, chiral amino compound-modified phthalimide hosts and naphthalimide guests, a chiral-selective RTP enhancement phenomenon can be observed. For example, R-enantiomeric guests in R-enantiomeric hosts produce strong red RTP afterglow while no appreciable RTP could be observed in the S-R guest-host counterpart. An unprecedented RTP intensity difference > 10(2) folds with the ability to distinguish an enantiomeric excess of 98% could be achieved. Temperature-dependent measurements suggest that a chirality-dependent energy transfer process may be involved in the observed phenomenon, which can be harnessed to extend the RTP application to the chiral recognition of amino compounds, such as amino alcohols.
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spelling pubmed-100246832023-03-20 Observation of Chiral-selective room-temperature phosphorescence enhancement via chirality-dependent energy transfer Chen, Biao Huang, Wenhuan Zhang, Guoqing Nat Commun Article Pure organic room-temperature phosphorescence (RTP), particularly from guest-host doped systems, has seen exponential growth in the last several years due to their high modulation flexibility, and yet challenges remain with respect to mechanistic elucidations and advantageous applications. Here we show that by constructing guest-host doped RTP systems from chiral components, namely, chiral amino compound-modified phthalimide hosts and naphthalimide guests, a chiral-selective RTP enhancement phenomenon can be observed. For example, R-enantiomeric guests in R-enantiomeric hosts produce strong red RTP afterglow while no appreciable RTP could be observed in the S-R guest-host counterpart. An unprecedented RTP intensity difference > 10(2) folds with the ability to distinguish an enantiomeric excess of 98% could be achieved. Temperature-dependent measurements suggest that a chirality-dependent energy transfer process may be involved in the observed phenomenon, which can be harnessed to extend the RTP application to the chiral recognition of amino compounds, such as amino alcohols. Nature Publishing Group UK 2023-03-18 /pmc/articles/PMC10024683/ /pubmed/36934094 http://dx.doi.org/10.1038/s41467-023-37157-w Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Chen, Biao
Huang, Wenhuan
Zhang, Guoqing
Observation of Chiral-selective room-temperature phosphorescence enhancement via chirality-dependent energy transfer
title Observation of Chiral-selective room-temperature phosphorescence enhancement via chirality-dependent energy transfer
title_full Observation of Chiral-selective room-temperature phosphorescence enhancement via chirality-dependent energy transfer
title_fullStr Observation of Chiral-selective room-temperature phosphorescence enhancement via chirality-dependent energy transfer
title_full_unstemmed Observation of Chiral-selective room-temperature phosphorescence enhancement via chirality-dependent energy transfer
title_short Observation of Chiral-selective room-temperature phosphorescence enhancement via chirality-dependent energy transfer
title_sort observation of chiral-selective room-temperature phosphorescence enhancement via chirality-dependent energy transfer
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10024683/
https://www.ncbi.nlm.nih.gov/pubmed/36934094
http://dx.doi.org/10.1038/s41467-023-37157-w
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