Ni(II)-Mediated Self-Assembly of Artificial β-Dipeptides Forming a Macrocyclic Tetranuclear Complex with Interior Spaces for In-Line Molecular Arrangement
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- Ryosuke Miyake
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan, Rigaku Corporation, 3-9-12 Matsubaracho, Akishima, Tokyo 196-8666, Japan, and Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho Chikusa-ku, Nagoya, Aichi 464-8602, Japan
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- Shohei Tashiro
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan, Rigaku Corporation, 3-9-12 Matsubaracho, Akishima, Tokyo 196-8666, Japan, and Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho Chikusa-ku, Nagoya, Aichi 464-8602, Japan
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- Motoo Shiro
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan, Rigaku Corporation, 3-9-12 Matsubaracho, Akishima, Tokyo 196-8666, Japan, and Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho Chikusa-ku, Nagoya, Aichi 464-8602, Japan
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- Kentaro Tanaka
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan, Rigaku Corporation, 3-9-12 Matsubaracho, Akishima, Tokyo 196-8666, Japan, and Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho Chikusa-ku, Nagoya, Aichi 464-8602, Japan
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- Mitsuhiko Shionoya
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan, Rigaku Corporation, 3-9-12 Matsubaracho, Akishima, Tokyo 196-8666, Japan, and Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho Chikusa-ku, Nagoya, Aichi 464-8602, Japan
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説明
Metal-mediated self-assembly of bioinspired molecular building blocks shows promise as an excellent strategy to provide well-defined metal arrays and nanoscopic metallo-architectures in a programmable way. Herein, we report Ni(II)-mediated self-assembly of artificial beta-dipeptides (1) which were prepared from a newly designed beta-amino acid bearing a propanediamine ligand as the side chain. The beta-dipeptide (1) has thus two sets of ligands, that is, each building block serves as a tridentate ligand with a bidentate propanediamine unit and an amide carbonyl group. Both C- and N-terminal tridentate ligands in 1 bind to two Ni(II) ions independently, and consequently, four beta-dipeptides are circularly arranged in a head-to-tail fashion to form a macrocyclic tetranuclear Ni(II) complex, Ni414(ClO4)8(H2O)10. The cyclic structure was determined by X-ray analysis and ESI-TOF mass spectrometry. The resulting unique twisted-boat structure allows the formation of isolated spaces for in-line hydrogen-bonded arrangement of water and anion molecules within a hole and two grooves rich in hydrogen bonding groups.
収録刊行物
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- Journal of the American Chemical Society
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Journal of the American Chemical Society 130 (17), 5646-5647, 2008-04-01
American Chemical Society (ACS)
