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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.
Afiliación
  • Wu SQ; Institute for Materials Chemistry and Engineering & IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.
  • Liu M; Institute for Materials Chemistry and Engineering & IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.
  • Gao K; Department of Chemistry, Tsinghua University, 100084, Beijing, PR China.
  • Kanegawa S; Institute for Materials Chemistry and Engineering & IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.
  • Horie Y; College of Physical Science and Technology, Yangzhou University, Jiangsu, 225009, PR China.
  • Aoyama G; Institute for Materials Chemistry and Engineering & IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan. kanegawa@cm.kyushu-u.ac.jp.
  • Okajima H; Graduate School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa, 252-5258, Japan.
  • Sakamoto A; Graduate School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa, 252-5258, Japan.
  • Baker ML; Graduate School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa, 252-5258, Japan.
  • Huzan MS; Graduate School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa, 252-5258, Japan.
  • Bencok P; The Department of Chemistry, The University of Manchester, Manchester, M13 9PL, UK.
  • Abe T; The Department of Chemistry, The University of Manchester at Harwell, Didcot, OX11 0FA, UK.
  • Shiota Y; The Department of Chemistry, The University of Manchester, Manchester, M13 9PL, UK.
  • Yoshizawa K; The Department of Chemistry, The University of Manchester at Harwell, Didcot, OX11 0FA, UK.
  • Xu W; Science Division, Diamond Light Source, Didcot, OX11 0DE, UK.
  • Kou HZ; Institute for Materials Chemistry and Engineering & IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.
  • Sato O; Institute for Materials Chemistry and Engineering & IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.
Nat Commun ; 11(1): 1992, 2020 Apr 24.
Article en En | MEDLINE | ID: mdl-32332751
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)](ClO4)·0.5EtOH (1·0.5EtOH, H2phendiox = 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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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2020 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2020 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Reino Unido