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Macroscopic Polarization Change via Electron Transfer in a Valence Tautomeric Cobalt Complex

Polarization change induced by directional electron transfer attracts considerable attention owing to its fast switching rate and potential light control. Here, we investigate electronic pyroelectricity in the crystal of a mononuclear complex, [Co(phendiox)(rac-cth)](ClO(4))·0.5EtOH (1·0.5EtOH, H(2)...

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Autores principales: Wu, Shu-Qi, Liu, Meijiao, Gao, Kaige, Kanegawa, Shinji, Horie, Yusuke, Aoyama, Genki, Okajima, Hajime, Sakamoto, Akira, Baker, Michael L., Huzan, Myron S., Bencok, Peter, Abe, Tsukasa, Shiota, Yoshihito, Yoshizawa, Kazunari, Xu, Wenhuang, Kou, Hui-Zhong, Sato, Osamu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7181709/
https://www.ncbi.nlm.nih.gov/pubmed/32332751
http://dx.doi.org/10.1038/s41467-020-15988-1
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author Wu, Shu-Qi
Liu, Meijiao
Gao, Kaige
Kanegawa, Shinji
Horie, Yusuke
Aoyama, Genki
Okajima, Hajime
Sakamoto, Akira
Baker, Michael L.
Huzan, Myron S.
Bencok, Peter
Abe, Tsukasa
Shiota, Yoshihito
Yoshizawa, Kazunari
Xu, Wenhuang
Kou, Hui-Zhong
Sato, Osamu
author_facet Wu, Shu-Qi
Liu, Meijiao
Gao, Kaige
Kanegawa, Shinji
Horie, Yusuke
Aoyama, Genki
Okajima, Hajime
Sakamoto, Akira
Baker, Michael L.
Huzan, Myron S.
Bencok, Peter
Abe, Tsukasa
Shiota, Yoshihito
Yoshizawa, Kazunari
Xu, Wenhuang
Kou, Hui-Zhong
Sato, Osamu
author_sort Wu, Shu-Qi
collection PubMed
description Polarization change induced by directional electron transfer attracts considerable attention owing to its fast switching rate and potential light control. Here, we investigate electronic pyroelectricity in the crystal of a mononuclear complex, [Co(phendiox)(rac-cth)](ClO(4))·0.5EtOH (1·0.5EtOH, H(2)phendiox = 9, 10-dihydroxyphenanthrene, rac-cth = racemic 5, 5, 7, 12, 12, 14-hexamethyl-1, 4, 8, 11-tetraazacyclotetradecane), which undergoes a two-step valence tautomerism (VT). Correspondingly, pyroelectric current exhibits double peaks in the same temperature domain with the polarization change consistent with the change in dipole moments during the VT process. Time-resolved Infrared (IR) spectroscopy shows that the photo-induced metastable state can be generated within 150 ps at 190 K. Such state can be trapped for tens of minutes at 7 K, showing that photo-induced polarization change can be realized in this system. These results directly demonstrate that a change in the molecular dipole moments induced by intramolecular electron transfer can introduce a macroscopic polarization change in VT compounds.
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spelling pubmed-71817092020-04-29 Macroscopic Polarization Change via Electron Transfer in a Valence Tautomeric Cobalt Complex Wu, Shu-Qi Liu, Meijiao Gao, Kaige Kanegawa, Shinji Horie, Yusuke Aoyama, Genki Okajima, Hajime Sakamoto, Akira Baker, Michael L. Huzan, Myron S. Bencok, Peter Abe, Tsukasa Shiota, Yoshihito Yoshizawa, Kazunari Xu, Wenhuang Kou, Hui-Zhong Sato, Osamu Nat Commun Article Polarization change induced by directional electron transfer attracts considerable attention owing to its fast switching rate and potential light control. Here, we investigate electronic pyroelectricity in the crystal of a mononuclear complex, [Co(phendiox)(rac-cth)](ClO(4))·0.5EtOH (1·0.5EtOH, H(2)phendiox = 9, 10-dihydroxyphenanthrene, rac-cth = racemic 5, 5, 7, 12, 12, 14-hexamethyl-1, 4, 8, 11-tetraazacyclotetradecane), which undergoes a two-step valence tautomerism (VT). Correspondingly, pyroelectric current exhibits double peaks in the same temperature domain with the polarization change consistent with the change in dipole moments during the VT process. Time-resolved Infrared (IR) spectroscopy shows that the photo-induced metastable state can be generated within 150 ps at 190 K. Such state can be trapped for tens of minutes at 7 K, showing that photo-induced polarization change can be realized in this system. These results directly demonstrate that a change in the molecular dipole moments induced by intramolecular electron transfer can introduce a macroscopic polarization change in VT compounds. Nature Publishing Group UK 2020-04-24 /pmc/articles/PMC7181709/ /pubmed/32332751 http://dx.doi.org/10.1038/s41467-020-15988-1 Text en © The Author(s) 2020 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/.
spellingShingle Article
Wu, Shu-Qi
Liu, Meijiao
Gao, Kaige
Kanegawa, Shinji
Horie, Yusuke
Aoyama, Genki
Okajima, Hajime
Sakamoto, Akira
Baker, Michael L.
Huzan, Myron S.
Bencok, Peter
Abe, Tsukasa
Shiota, Yoshihito
Yoshizawa, Kazunari
Xu, Wenhuang
Kou, Hui-Zhong
Sato, Osamu
Macroscopic Polarization Change via Electron Transfer in a Valence Tautomeric Cobalt Complex
title Macroscopic Polarization Change via Electron Transfer in a Valence Tautomeric Cobalt Complex
title_full Macroscopic Polarization Change via Electron Transfer in a Valence Tautomeric Cobalt Complex
title_fullStr Macroscopic Polarization Change via Electron Transfer in a Valence Tautomeric Cobalt Complex
title_full_unstemmed Macroscopic Polarization Change via Electron Transfer in a Valence Tautomeric Cobalt Complex
title_short Macroscopic Polarization Change via Electron Transfer in a Valence Tautomeric Cobalt Complex
title_sort macroscopic polarization change via electron transfer in a valence tautomeric cobalt complex
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7181709/
https://www.ncbi.nlm.nih.gov/pubmed/32332751
http://dx.doi.org/10.1038/s41467-020-15988-1
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