Volume 52, Issue 2 pp. 720-723
Communication

A Self-Assembled Multiporphyrin Cage Complex through Three Different Zinc(II) Center Formation under Well-Balanced Aqueous Conditions

Takashi Nakamura

Takashi Nakamura

Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)

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Dr. Hitoshi Ube

Dr. Hitoshi Ube

Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)

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Dr. Motoo Shiro

Dr. Motoo Shiro

Rigaku Corporation, 3-9-12 Matsubaracho, Akishima, Tokyo 196-8666 (Japan)

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Prof. Dr. Mitsuhiko Shionoya

Corresponding Author

Prof. Dr. Mitsuhiko Shionoya

Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)

Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)Search for more papers by this author
First published: 19 November 2012
Citations: 77

This research was supported by Global COE Program and KAKENHI from the Japan Society for the Promotion of Science (JSPS) and MEXT (Japan). T. Nakamura thanks JSPS Research Fellowship for Young Scientists.

Graphical Abstract

Construction of a self-assembled cage complex through three different ZnII centers is achieved using a Zn porphyrin ligand with four 2,2′-bipyridin-5-yl (bpy) groups. The multiporphyrin cage encapsulates guest molecules unsymmetrically by π–π interactions. Well-balanced aqueous conditions, which allow the formation of both tris(bpy) and hydrated bis(bpy) ZnII units, result in the unsymmetrical yet well-defined supramolecular structure.

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