| Title |
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Synthesis and Tunable Optical Properties of C,N-Chelated Borate Luminophores Derived from Potassium Acyltrifluoroborates
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| Accessrights |
open access |
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en
This is the peer reviewed version of the following article: J. Taguchi, S. Matsuura, T. Seki, H. Ito, Chem. Eur. J. 2020, 26, 2450. , which has been published in final form at doi.org/10.1002/chem.201904983. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
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| Subject |
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Other
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acylboron compounds
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Other
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boron-containing heterocycles
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cyclization
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Other
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mechanochromism
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Other
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photoluminescence
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| Description |
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Abstract
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A new class of borate luminophores has been synthesized by a simple two-step reaction using potassium acyltrifluoroborates (KATs) as starting materials. The hydrazones obtained from reactions between KATs and 2-hydrazinopyridines followed by a cyclization resulted in the unprecedented formation of C,N-chelated six-membered bora-heterocycles. Under consideration of the results of DFT and TD-DFT calculations, four luminophores based on such bora-heterocycles are designed and synthesized, which exhibit a tunable fluorescence range from blue to red in the solid state. Moreover, one of the luminophores exhibits mechanofluorochromism from blue to yellow/green. As a result of the aforementioned mechanochromism of one of these luminophores, white-color emission was achieved by simply mixing the four luminophores.
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| Publisher |
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Wiley-Blackwell
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| Resource Type |
journal article |
| Version Type |
AM |
| Identifier |
HDL
http://hdl.handle.net/2115/80472
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| Relation |
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isVersionOf
DOI
https://doi.org/10.1002/chem.201904983
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| Journal |
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Chemistry-A European journal
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Volume Number26
Issue Number11
Page Start2450
Page End2455
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| Oaidate |
2023-07-26 |
