Supramolecular control of reverse spin transitions in cobalt(II) terpyridine complexes with diblock copolypeptide amphiphiles

Keita Kuroiwa; Tsubasa Arie; Shinichi Sakurai; Shinya Hayami; Timothy J. Deming

doi:10.1039/C5TC00677E

Supramolecular control of reverse spin transitions in cobalt(ii) terpyridine complexes with diblock copolypeptide amphiphiles†

Keita Kuroiwa,*^a Tsubasa Arie,^a Shinichi Sakurai,^b Shinya Hayami^c and Timothy J. Deming^d

* Corresponding authors

^a Department of Nanoscience, Faculty of Engineering, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
E-mail: keitak@nano.sojo-u.ac.jp

^b Department of Biobased Materials Science, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan

^c Department of Chemistry, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan

^d Department of Bioengineering, University of California, Los Angeles, CA 90095, USA

Abstract

Three composites composed of the cobalt terpyridine complex [Co^II(MeO-terpy)₂] and the diblock copolypeptide amphiphiles 1 and 2 or the polypeptide 3 (including glutamic acid and leucine) were prepared. Supramolecular structures such as rectangular morphologies were obtained from composites of 1 and 2. A perfectly reversible reverse spin transition was successfully generated in the case of composites made with 1.

This article is part of the themed collections: 2015 Journal of Materials Chemistry C Hot Papers and Spin State Switches in Molecular Materials Chemistry

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DOI: https://doi.org/10.1039/C5TC00677E
Article type: Communication
Submitted: 10 Mar 2015
Accepted: 24 Mar 2015
First published: 26 Mar 2015
This article is Open Access

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J. Mater. Chem. C, 2015,3, 7779-7783

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Supramolecular control of reverse spin transitions in cobalt(II) terpyridine complexes with diblock copolypeptide amphiphiles

K. Kuroiwa, T. Arie, S. Sakurai, S. Hayami and T. J. Deming, J. Mater. Chem. C, 2015, 3, 7779 DOI: 10.1039/C5TC00677E

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Journal of Materials Chemistry C

Supramolecular control of reverse spin transitions in cobalt(ii) terpyridine complexes with diblock copolypeptide amphiphiles†

Abstract

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Supramolecular control of reverse spin transitions in cobalt(II) terpyridine complexes with diblock copolypeptide amphiphiles

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