Deep-red circularly polarised luminescent C70 derivatives

Abstract Optically active fullerenes, including C60 and C70 derivatives carrying organic substituents, are used in a range of applications because of their unique spectroscopic, catalytic, and chiral recognition properties. However, their inherent photoexcited chirality is yet to be elucidated becau...

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Autores principales: Haruka Kano, Hironobu Hayashi, Kyohei Matsuo, Michiya Fujiki, Hiroko Yamada, Naoki Aratani
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Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/77da8b758a2c4b2685641f5d8df22f04
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spelling oai:doaj.org-article:77da8b758a2c4b2685641f5d8df22f042021-12-02T17:34:48ZDeep-red circularly polarised luminescent C70 derivatives10.1038/s41598-021-91451-52045-2322https://doaj.org/article/77da8b758a2c4b2685641f5d8df22f042021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-91451-5https://doaj.org/toc/2045-2322Abstract Optically active fullerenes, including C60 and C70 derivatives carrying organic substituents, are used in a range of applications because of their unique spectroscopic, catalytic, and chiral recognition properties. However, their inherent photoexcited chirality is yet to be elucidated because of their very poor fluorescence quantum yield (Φ f). We synthesised a new chiral C70 derivative, X70A, with 20% yield, by reacting bis-borylated xanthene with C70 in a one-step double addition reaction, followed by a successful optical resolution. The isolation of two separate X70A enantiomers was confirmed by mirror-image circular dichroism spectroscopy in the range of 300–750 nm. In toluene, the enantiomeric pair of X70A clearly revealed mirror-image circularly polarised luminescence (CPL) spectra with a high |g lum| value of 7.0 ×  10−3 at 690 nm. The first fullerene-based deep-red CPL of X70A should provide a new guideline for the design of chiral nanocarbon materials.Haruka KanoHironobu HayashiKyohei MatsuoMichiya FujikiHiroko YamadaNaoki ArataniNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Haruka Kano
Hironobu Hayashi
Kyohei Matsuo
Michiya Fujiki
Hiroko Yamada
Naoki Aratani
Deep-red circularly polarised luminescent C70 derivatives
description Abstract Optically active fullerenes, including C60 and C70 derivatives carrying organic substituents, are used in a range of applications because of their unique spectroscopic, catalytic, and chiral recognition properties. However, their inherent photoexcited chirality is yet to be elucidated because of their very poor fluorescence quantum yield (Φ f). We synthesised a new chiral C70 derivative, X70A, with 20% yield, by reacting bis-borylated xanthene with C70 in a one-step double addition reaction, followed by a successful optical resolution. The isolation of two separate X70A enantiomers was confirmed by mirror-image circular dichroism spectroscopy in the range of 300–750 nm. In toluene, the enantiomeric pair of X70A clearly revealed mirror-image circularly polarised luminescence (CPL) spectra with a high |g lum| value of 7.0 ×  10−3 at 690 nm. The first fullerene-based deep-red CPL of X70A should provide a new guideline for the design of chiral nanocarbon materials.
format article
author Haruka Kano
Hironobu Hayashi
Kyohei Matsuo
Michiya Fujiki
Hiroko Yamada
Naoki Aratani
author_facet Haruka Kano
Hironobu Hayashi
Kyohei Matsuo
Michiya Fujiki
Hiroko Yamada
Naoki Aratani
author_sort Haruka Kano
title Deep-red circularly polarised luminescent C70 derivatives
title_short Deep-red circularly polarised luminescent C70 derivatives
title_full Deep-red circularly polarised luminescent C70 derivatives
title_fullStr Deep-red circularly polarised luminescent C70 derivatives
title_full_unstemmed Deep-red circularly polarised luminescent C70 derivatives
title_sort deep-red circularly polarised luminescent c70 derivatives
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/77da8b758a2c4b2685641f5d8df22f04
work_keys_str_mv AT harukakano deepredcircularlypolarisedluminescentc70derivatives
AT hironobuhayashi deepredcircularlypolarisedluminescentc70derivatives
AT kyoheimatsuo deepredcircularlypolarisedluminescentc70derivatives
AT michiyafujiki deepredcircularlypolarisedluminescentc70derivatives
AT hirokoyamada deepredcircularlypolarisedluminescentc70derivatives
AT naokiaratani deepredcircularlypolarisedluminescentc70derivatives
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