Reversible solid-state hydration and dehydration process involving anion transfer in a self-assembled Cu2 system

T. Washizaki; R. Ishikawa; K. Yoneda; S. Kitagawa; S. Kaizaki; A. Fuyuhiro; S. Kawata

doi:10.1039/C2RA21865H

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Reversible solid-state hydration and dehydration process involving anion transfer in a self-assembled Cu₂ system†

T. Washizaki,^a R. Ishikawa,^b K. Yoneda,^c S. Kitagawa,^d S. Kaizaki,^e A. Fuyuhiro^e and S. Kawata*^a

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* Corresponding authors

^a Department of Chemistry, Faculty of Science, Fukuoka University, Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
E-mail: kawata@fukuoka-u.ac.jp
Fax: +81- 92-865-6030

^b Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan

^c Department of Chemistry and Applied Chemistry, Faculty of Science and Engineering, Saga University, Saga, Japan

^d Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Kyoto 615-8510, Japan

^e Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan

Abstract

Supramolecular assembly [Cu^II₂(μ-bpypz)₂Br_1.25(H₂O)_0.75]Br_0.75·2.25H₂O (1) was prepared by using 3,5-di(2-pyridyl)pyrazole (Hbpypz). Assembly 1 consists of supramolecular dimers of dinuclear species based on doubly bpypz⁻ bridged dinuclear building blocks. The supramolecular dimer is flexible as a result of π⋯π interactions. Compound 1 undergoes reversible structural transformation in the solid state involving reversible apical-ligand substitution at the copper centers upon hydration–dehydration.

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Article information

DOI: https://doi.org/10.1039/C2RA21865H
Article type: Communication
Submitted: 18 Aug 2012
Accepted: 17 Oct 2012
First published: 19 Oct 2012

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RSC Adv., 2012,2, 12169-12172

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Reversible solid-state hydration and dehydration process involving anion transfer in a self-assembled Cu₂ system

T. Washizaki, R. Ishikawa, K. Yoneda, S. Kitagawa, S. Kaizaki, A. Fuyuhiro and S. Kawata, RSC Adv., 2012, 2, 12169 DOI: 10.1039/C2RA21865H

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