Mechanically-sensitive fluorochromism by molecular domino transformation in a Schiff base crystal

The ability to make large changes in properties against small external stimuli is one of the key factors in sensing materials. Molecular domino transformation, i.e., polymorphic transformation starting at a stimulated point and extending to the whole crystal, is an attractive phenomenon from this vi...

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Main Authors: Sasaki, Toshiyuki, Nakane, Takanori, Kawamoto, Akihiro, Zhao, Yakai, Fujimoto, Yushi, Nishizawa, Tomohiro, Kalita, Nabadeep, Tsuzuki, Seiji, Ito, Fuyuki, Ramamurty, Upadrasta, Thakuria, Ranjit, Kurisu, Genji
Other Authors: School of Mechanical and Aerospace Engineering
Format: Article
Language:English
Published: 2024
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Online Access:https://hdl.handle.net/10356/180047
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1800472024-09-14T16:48:27Z Mechanically-sensitive fluorochromism by molecular domino transformation in a Schiff base crystal Sasaki, Toshiyuki Nakane, Takanori Kawamoto, Akihiro Zhao, Yakai Fujimoto, Yushi Nishizawa, Tomohiro Kalita, Nabadeep Tsuzuki, Seiji Ito, Fuyuki Ramamurty, Upadrasta Thakuria, Ranjit Kurisu, Genji School of Mechanical and Aerospace Engineering Institute of Materials Research and Engineering, A*STAR Engineering Organic crystal Polymorphic transformation The ability to make large changes in properties against small external stimuli is one of the key factors in sensing materials. Molecular domino transformation, i.e., polymorphic transformation starting at a stimulated point and extending to the whole crystal, is an attractive phenomenon from this viewpoint. We recently found such a transformation for the first time in an organic crystal of 4-nitro-N-salicylideneaniline as one of the Schiff bases. In this study, quantitative evaluations were conducted on the mechanical stimulus and emission properties in the transformation of the crystal. Our results demonstrate the potential applicability of the crystal to the detection of even less than a few μN mechanical stimuli as an emission color change. A molecular level transformation mechanism revealed by microcrystal electron diffraction also contributes to the future development of the transformation-based materials. Published version This work was supported by JSPS KAKENHI Grant Number 22K05054 for T. S. and Research Support Project for Life Science and Drug Discovery (BINDS) from AMED under Grant Number JP22ama121001. R. T. thanks the Science and Engineering Research Board for funding under the Teachers Associateship for Research Excellence (TARE) grant (Project No. TAR/2021/000251). 2024-09-11T01:48:41Z 2024-09-11T01:48:41Z 2024 Journal Article Sasaki, T., Nakane, T., Kawamoto, A., Zhao, Y., Fujimoto, Y., Nishizawa, T., Kalita, N., Tsuzuki, S., Ito, F., Ramamurty, U., Thakuria, R. & Kurisu, G. (2024). Mechanically-sensitive fluorochromism by molecular domino transformation in a Schiff base crystal. Journal of Materials Chemistry C, 12(23), 8508-8513. https://dx.doi.org/10.1039/d4tc00406j 2050-7526 https://hdl.handle.net/10356/180047 10.1039/d4tc00406j 2-s2.0-85195062947 23 12 8508 8513 en Journal of Materials Chemistry C © The Authors. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering
Organic crystal
Polymorphic transformation
spellingShingle Engineering
Organic crystal
Polymorphic transformation
Sasaki, Toshiyuki
Nakane, Takanori
Kawamoto, Akihiro
Zhao, Yakai
Fujimoto, Yushi
Nishizawa, Tomohiro
Kalita, Nabadeep
Tsuzuki, Seiji
Ito, Fuyuki
Ramamurty, Upadrasta
Thakuria, Ranjit
Kurisu, Genji
Mechanically-sensitive fluorochromism by molecular domino transformation in a Schiff base crystal
description The ability to make large changes in properties against small external stimuli is one of the key factors in sensing materials. Molecular domino transformation, i.e., polymorphic transformation starting at a stimulated point and extending to the whole crystal, is an attractive phenomenon from this viewpoint. We recently found such a transformation for the first time in an organic crystal of 4-nitro-N-salicylideneaniline as one of the Schiff bases. In this study, quantitative evaluations were conducted on the mechanical stimulus and emission properties in the transformation of the crystal. Our results demonstrate the potential applicability of the crystal to the detection of even less than a few μN mechanical stimuli as an emission color change. A molecular level transformation mechanism revealed by microcrystal electron diffraction also contributes to the future development of the transformation-based materials.
author2 School of Mechanical and Aerospace Engineering
author_facet School of Mechanical and Aerospace Engineering
Sasaki, Toshiyuki
Nakane, Takanori
Kawamoto, Akihiro
Zhao, Yakai
Fujimoto, Yushi
Nishizawa, Tomohiro
Kalita, Nabadeep
Tsuzuki, Seiji
Ito, Fuyuki
Ramamurty, Upadrasta
Thakuria, Ranjit
Kurisu, Genji
format Article
author Sasaki, Toshiyuki
Nakane, Takanori
Kawamoto, Akihiro
Zhao, Yakai
Fujimoto, Yushi
Nishizawa, Tomohiro
Kalita, Nabadeep
Tsuzuki, Seiji
Ito, Fuyuki
Ramamurty, Upadrasta
Thakuria, Ranjit
Kurisu, Genji
author_sort Sasaki, Toshiyuki
title Mechanically-sensitive fluorochromism by molecular domino transformation in a Schiff base crystal
title_short Mechanically-sensitive fluorochromism by molecular domino transformation in a Schiff base crystal
title_full Mechanically-sensitive fluorochromism by molecular domino transformation in a Schiff base crystal
title_fullStr Mechanically-sensitive fluorochromism by molecular domino transformation in a Schiff base crystal
title_full_unstemmed Mechanically-sensitive fluorochromism by molecular domino transformation in a Schiff base crystal
title_sort mechanically-sensitive fluorochromism by molecular domino transformation in a schiff base crystal
publishDate 2024
url https://hdl.handle.net/10356/180047
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