New layered perovskite family built from [CeTa2O7]− layers: coloring mechanism from unique multi-transitions

Takuya Hasegawa; Atsushi Shigee; Yoshinori Nishiwaki; Makoto Nagasako; Adie Tri Hanindriyo; Kenta Hongo; Ryo Maezono; Tadaharu Ueda; Shu Yin

doi:10.1039/D0CC03466E

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New layered perovskite family built from [CeTa₂O₇]⁻ layers: coloring mechanism from unique multi-transitions†

Takuya Hasegawa,

*^a Atsushi Shigee,^b Yoshinori Nishiwaki,^c Makoto Nagasako,

^d Adie Tri Hanindriyo,

^e Kenta Hongo,

^f Ryo Maezono,^g Tadaharu Ueda

^bh and Shu Yin

Author affiliations

* Corresponding authors

^a Institute of Multidisciplinary Research for Advanced Material (IMRAM), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Japan
E-mail: hase@tohoku.ac.jp

^b Department of Marine Resources Science, Faculty of Agriculture and Marine Science, Kochi University, Nankoku, Japan

^c Teacher Training Division (Science Education Course), Faculty of Education, Kochi University, Kochi 780-8520, Japan

^d Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan

^e School of Materials Science, JAIST, Asahidai 1-1, Nomi, Ishikawa 923-1292, Japan

^f Research Center for Advanced Computing Infrastructure, JAIST, Asahidai 1-1, Nomi, Ishikawa 923-1292, Japan

^g School of Information Science, JAIST, Asahidai 1-1, Nomi, Ishikawa 923-1292, Japan

^h Center for Advanced Marine Core Research, Kochi University, Nankoku, Japan

Abstract

A Ce³⁺-based layered perovskite compound, Dion–Jacobson type RbCeTa₂O₇, has been discovered for the first time by introducing only a trivalent cerium ion to form [CeTa₂O₇]⁻ layers. The unique green color was experimentally and theoretically ascribed to two charge transfer transitions of ligand-to-metal O2p → Ce4f and metal-to-metal Ce4f → Ta5d.

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Article information

DOI: https://doi.org/10.1039/D0CC03466E
Article type: Communication
Submitted: 15 Мам. 2020
Accepted: 18 Мау. 2020
First published: 18 Мау. 2020

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Chem. Commun., 2020,56, 8591-8594

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New layered perovskite family built from [CeTa₂O₇]⁻ layers: coloring mechanism from unique multi-transitions

T. Hasegawa, A. Shigee, Y. Nishiwaki, M. Nagasako, A. T. Hanindriyo, K. Hongo, R. Maezono, T. Ueda and S. Yin, Chem. Commun., 2020, 56, 8591 DOI: 10.1039/D0CC03466E

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