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Wada K, Nagata Y, Cui L, Ono T, Akine S, Ohtani S, Kato K, Fa S, Ogoshi T. Self-Inclusion Complexation of Electron-Accepting Guest into Electron-Donating Cyclic Host by Photoexcitation. Angew Chem Int Ed Engl 2024:e202404409. [PMID: 38609333 DOI: 10.1002/anie.202404409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 04/10/2024] [Accepted: 04/12/2024] [Indexed: 04/14/2024]
Abstract
Self-inclusion complexes consisting of host-guest conjugates are one of the unique supramolecular structures because they form in-state and out-state depending on the external stimuli. Despite many reports of the stimuli-responsive self-inclusion complex formation, study of the structural relaxation from out-state to in-state by photoexcitation has been unexplored. Herein, we report that an electron-donating host and an electron-accepting guest conjugate exhibits the structural relaxation from out-state to in-state by photoexcitation. Formation of the in-state in the excited state resulted in exciplex emission along with the locally excited emission from the out-state. Moreover, this structural relaxation by photoexcitation was suppressed not only by temperature, but also by the presence of guest molecules, resulting in changes in the ratio of the dual emission intensities.
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Affiliation(s)
- Keisuke Wada
- Kyoto University, Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, JAPAN
| | - Yuuya Nagata
- Hokkaido University, WPI Institute for Chemical Reaction Design and Discovery, JAPAN
| | - Luxia Cui
- Kyushu University, Department of Chemistry and Biochemistry, Graduate School of Engineering, JAPAN
| | - Toshikazu Ono
- Kyushu University, Department of Chemistry and Biochemistry, Graduate School of Engineering, JAPAN
| | | | - Shunsuke Ohtani
- Kyoto University, Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, JAPAN
| | - Kenichi Kato
- Kyoto University, Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, JAPAN
| | - Shixin Fa
- Northwestern Polytechnical University, School of Chemistry and Chemical Engineering, CHINA
| | - Tomoki Ogoshi
- Kyoto Daigaku, Department of Synthetic Chemistry and Biological Chemistry, Katsura, Nishikyo-ku, 615-8510, Kyoto, JAPAN
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2
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Ousaka N, MacLachlan MJ, Akine S. Publisher Correction: Stapling strategy for slowing helicity interconversion of α-helical peptides and isolating chiral auxiliary-free one-handed forms. Nat Commun 2024; 15:1820. [PMID: 38418813 PMCID: PMC10902365 DOI: 10.1038/s41467-024-46219-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024] Open
Affiliation(s)
- Naoki Ousaka
- Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan.
| | - Mark J MacLachlan
- Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan.
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1, Canada.
- Quantum Matter Institute, University of British Columbia, 2355 East Mall, Vancouver, BC, V6T 1Z4, Canada.
| | - Shigehisa Akine
- Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan.
- Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, 920-1192, Japan.
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3
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Ohtani S, Akine S, Kato K, Fa S, Shi TH, Ogoshi T. Silapillar[ n]arenes: Their Enhanced Electronic Conjugation and Conformational Versatility. J Am Chem Soc 2024; 146:4695-4703. [PMID: 38324921 DOI: 10.1021/jacs.3c12093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
During recent decades, methylene-bridged macrocyclic arenes have been widely used in supramolecular chemistry. However, their π-conjugations are very weak, as the methylene bridges disrupt the electronic communication between π orbitals of the aromatic units. Herein, we successfully synthesized a series of silapillar[n]arenes (n = 4, 6, and 8) using silylene bridging. These showed enhanced electronic conjugation compared with the parent pillar[n]arenes because of σ*-π* conjugation between σ* (Si-C) orbitals and π* orbitals of the benzenes. Owing to the longer Si-C bond compared with the C-C bond, silylene-bridging provides additional structural flexibility into the pillar[n]arene scaffolds; a strained silapillar[4]arene was formed, which is unavailable in the parent pillar[n]arenes because of the steric requirements. Furthermore, silapillar[n]arenes displayed interesting size-dependent structural and optical properties.
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Affiliation(s)
- Shunsuke Ohtani
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Kenichi Kato
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Shixin Fa
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Tan-Hao Shi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Tomoki Ogoshi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
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Muratsugu S, Sawaguchi K, Shiraogawa T, Chiba S, Sakata Y, Shirai S, Baba H, Ehara M, Akine S, Tada M. Induced chirality at the surface: fixation of a dynamic M/ P invertible helical Co 3 complex on SiO 2. Chem Commun (Camb) 2024; 60:2094-2097. [PMID: 38294205 DOI: 10.1039/d3cc05534e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Dynamic M/P invertible helicity was successfully induced at a SiO2 surface immobilized with a dynamic helical trinuclear cobalt complex, [LCo3(NHMe2)6](OTf)3, using chiral ((R) or (S))-1-phenylethylamine. Solid-state CD spectra and theoretical calculations suggested that the fixation of the M/P helical complex on the surface via coordination interactions was the key factor of the induced chirality at the surface.
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Affiliation(s)
- Satoshi Muratsugu
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602 Aichi, Japan.
- Integrated Research Consortium on Chemical Science (IRCCS), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602 Aichi, Japan
| | - Kana Sawaguchi
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602 Aichi, Japan.
- Research Center for Materials Science (RCMS), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602 Aichi, Japan
| | - Takafumi Shiraogawa
- Institute for Molecular Science/School of Physical Sciences, Graduate University for Advanced Studies, Myodaiji, Okazaki, 444-8585 Aichi, Japan.
| | - Shunsuke Chiba
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192 Ishikawa, Japan.
| | - Yoko Sakata
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192 Ishikawa, Japan.
- Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa, 920-1192 Ishikawa, Japan
| | - Sora Shirai
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602 Aichi, Japan.
| | - Hiroshi Baba
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602 Aichi, Japan.
| | - Masahiro Ehara
- Institute for Molecular Science/School of Physical Sciences, Graduate University for Advanced Studies, Myodaiji, Okazaki, 444-8585 Aichi, Japan.
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192 Ishikawa, Japan.
- Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa, 920-1192 Ishikawa, Japan
| | - Mizuki Tada
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602 Aichi, Japan.
- Integrated Research Consortium on Chemical Science (IRCCS), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602 Aichi, Japan
- Research Center for Materials Science (RCMS), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602 Aichi, Japan
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Shi TH, Akine S, Ohtani S, Kato K, Ogoshi T. Friedel-Crafts Acylation for Accessing Multi-Bridge-Functionalized Large Pillar[n]arenes. Angew Chem Int Ed Engl 2024; 63:e202318268. [PMID: 38108597 DOI: 10.1002/anie.202318268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 12/17/2023] [Accepted: 12/18/2023] [Indexed: 12/19/2023]
Abstract
Pillar[n]arenes can be constructed using a Friedel-Crafts alkylation process. However, due to the reversible nature of the alkylation, mixture of large pillar[n]arenes (n≥7) are obtained as minor products, and thus laborious purification are necessary to isolate the larger pillar[n]arenes. Moreover, inert methylene bridges are introduced during the alkylation process, and the multi-functionalization of the bridges has never been investigated. Herein, an irreversible Friedel-Crafts acylation is used to prepare pillar[n]arenes. Due to the irreversible nature of the acylation, the reaction of precursors bearing carboxylic acids and electron-rich arene rings results in a size-exclusive formation of pillar[n]arenes, in which the ring-size is determined by the precursor length. Because of this size-selective formation, laborious separation of undesired macrocycles is not necessary. Moreover, the bridges of pillar[n]arenes are selectively installed with reactive carbonyl groups using the acylation method, whose positions are determined by the precursor used. The carbonyl bridges can be easily converted into versatile functional groups, leading to various laterally modified pillar[n]arenes, which cannot be accessed by the alkylation strategy.
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Affiliation(s)
- Tan-Hao Shi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, 615-8510, Kyoto, Japan
| | - Shigehisa Akine
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, 920-1192, Kanazawa, Ishikawa, Japan
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, 920-1192, Kanazawa, Ishikawa, Japan
| | - Shunsuke Ohtani
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, 615-8510, Kyoto, Japan
| | - Kenichi Kato
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, 615-8510, Kyoto, Japan
| | - Tomoki Ogoshi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, 615-8510, Kyoto, Japan
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, 920-1192, Kanazawa, Ishikawa, Japan
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6
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Ikbal SA, Zhao P, Ehara M, Akine S. Acceleration and deceleration of chirality inversion speeds in a dynamic helical metallocryptand by alkali metal ion binding. Sci Adv 2023; 9:eadj5536. [PMID: 37922347 PMCID: PMC10624348 DOI: 10.1126/sciadv.adj5536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 10/02/2023] [Indexed: 11/05/2023]
Abstract
We report that the chirality inversion kinetics of a trinickel(II) cryptand can be controlled by guest recognition in the cryptand cavity. When the guest was absent, the nickel(II) cryptand underwent a dynamic interconversion between the P and M forms in solution, preferring the M form, with a half-life of t1/2 = 4.99 min. The P/M equilibrium is reversed to P-favored by binding with an alkali metal ion in the cryptand cavity. The timescale of this M→P inversion kinetics was both notably accelerated and decelerated by the guest binding (t1/2 = 0.182 min for K+ complex; 186 min for Cs+ complex); thus, the equilibration rate constants differed by up to 1000-fold depending on the guest metal ions. This acceleration/deceleration can be explained in terms of the virtual binding constants at the transition state of the P/M chirality inversion; K+ binding more stabilizes the transition state rather than the P and M forms to result in the acceleration.
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Affiliation(s)
- Sk Asif Ikbal
- Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Pei Zhao
- Research Center for Computational Science, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
| | - Masahiro Ehara
- Research Center for Computational Science, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
| | - Shigehisa Akine
- Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
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7
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Ousaka N, MacLachlan MJ, Akine S. Stapling strategy for slowing helicity interconversion of α-helical peptides and isolating chiral auxiliary-free one-handed forms. Nat Commun 2023; 14:6834. [PMID: 37884515 PMCID: PMC10603036 DOI: 10.1038/s41467-023-42493-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 10/12/2023] [Indexed: 10/28/2023] Open
Abstract
In nature, α-helical peptides adopt right-handed conformations that are dictated by L-amino acids. Isolating one-handed α-helical peptides composed of only achiral components remains a significant challenge. Here, this goal is achieved by optical resolution of the corresponding racemic (quasi-)static α-helical peptide with double stapling, which effectively freezes the interconversion between the right-handed (P)- and left-handed (M)-α-helices. An as-obtained doubly stapled analogue having an unprotected L-valine residue at the C-terminus transforms from a kinetically trapped (M)-α-helix to a thermodynamically stable (P)-α-helix upon heating. In contrast, the corresponding singly stapled α-helical peptide undergoes an acid/base-triggered and solvent-induced reversible inversion of its preferred helicity within minutes. The interconversion rates of the singly and doubly stapled α-helical peptide foldamers are approximately 106 and 1012 times slower, respectively, than that of a non-stapled dynamic helical peptide. Therefore, the enantiopure doubly-stapled (quasi-)static α-helical peptide would retain its optical activity for several years at 25 °C.
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Affiliation(s)
- Naoki Ousaka
- Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan.
| | - Mark J MacLachlan
- Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan.
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1, Canada.
- Quantum Matter Institute, University of British Columbia, 2355 East Mall, Vancouver, BC, V6T 1Z4, Canada.
| | - Shigehisa Akine
- Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan.
- Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, 920-1192, Japan.
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Adachi K, Fa S, Wada K, Kato K, Ohtani S, Nagata Y, Akine S, Ogoshi T. Adaptive Planar Chirality of Pillar[5]arenes Invertible by n-Alkane Lengths. J Am Chem Soc 2023; 145:8114-8121. [PMID: 36977281 DOI: 10.1021/jacs.3c01019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
Chirality of host molecules can be induced and/or inverted by the guest molecules. However, the adapting chirality of hosts to the length of n-alkanes remains a great challenge because n-alkanes are neutral, achiral, and linear molecules, resulting in a weak interaction with most compounds. Herein, we report a system with chirality adapted to n-alkane lengths, using a pillar[5]arene-based macrocyclic host, S-Br, which contains five stereogenic carbons and five terminal bromine atoms on each rim. The electron-rich cavity of S-Br could include n-alkanes and the planar-chiral isomers sensitively inverted in response to the lengths of the complexed n-alkanes. The inclusion of a short n-alkane such as n-pentane made S-Br more inclined to be in the pS-form, whereas the inclusion of long n-alkanes such as n-heptane made the pR-form more favorable. The difference in the stability of the isomers was supported by the crystal structures and the theoretical calculations. Furthermore, temperature drives the adaptive chirality of S-Br with n-alkanes. An n-alkane with middle length, n-hexane, showed the dominance of the pR-form of S-Br at a higher temperature, whereas the pS-form was shown at a lower temperature.
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Affiliation(s)
- Keisuke Adachi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Shixin Fa
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
| | - Keisuke Wada
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kenichi Kato
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Shunsuke Ohtani
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yuuya Nagata
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
- ERATO Maeda Artificial Intelligence for Chemical Reaction Design and Discovery Project, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan
| | - Tomoki Ogoshi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan
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9
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Sakata Y, Nakamura R, Hibi T, Akine S. Speed Tuning of the Formation/Dissociation of a Metallorotaxane. Angew Chem Int Ed Engl 2023; 62:e202217048. [PMID: 36628483 DOI: 10.1002/anie.202217048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 01/05/2023] [Accepted: 01/10/2023] [Indexed: 01/12/2023]
Abstract
Switching between the formation/dissociation of rotaxanes is important to control the function of various types of rotaxane-based materials. We have developed a convenient and simple strategy, the so-called "accelerator addition", to make a static rotaxane dynamic without apparently affecting the chemical structure. As an interlocked molecule that enables tuning of the formation/dissociation speed, a metallorotaxane was quantitatively generated by the complexation of a triptycene-based dumbbell-shaped mononuclear complex, [PdL2 ]2+ (L=2,3-diaminotriptycene), with 27C9. As a result of the inertness of the Pd2+ -based coordination structure, the metallorotaxane was slowly formed (the static state). This rotaxane formation was accelerated 27 times simply by adding Br- as an accelerator (the dynamic state). A similar drastic acceleration was also demonstrated during the dissociation process when Cs+ was added to the metallorotaxane to form the free axle [PdL2 ]2+ and the 27C9-Cs+ complex.
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Affiliation(s)
- Yoko Sakata
- Graduate School of Natural Science and Technology, Kanazawa University Kakuma-machi, Kanazawa, 920-1192, Japan.,Nano Life Science Institute (WPI-NanoLSI), Kanazawa University Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Ryosuke Nakamura
- Graduate School of Natural Science and Technology, Kanazawa University Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Toshihiro Hibi
- Graduate School of Natural Science and Technology, Kanazawa University Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology, Kanazawa University Kakuma-machi, Kanazawa, 920-1192, Japan.,Nano Life Science Institute (WPI-NanoLSI), Kanazawa University Kakuma-machi, Kanazawa, 920-1192, Japan
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10
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Wada K, Suzuki M, Kakuta T, Yamagishi TA, Ohtani S, Fa S, Kato K, Akine S, Ogoshi T. Dynamic-to-Static Planar Chirality Conversion in Pillar[5]arenes Regulated by Guest Solvents or Amplified by Crystallization. Angew Chem Int Ed Engl 2023; 62:e202217971. [PMID: 36869008 DOI: 10.1002/anie.202217971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 03/03/2023] [Accepted: 03/03/2023] [Indexed: 03/05/2023]
Abstract
Controlling dynamic chirality and memorizing the controlled chirality are important. The chirality memory mainly has been achieved using noncovalent interactions. However, in many cases, the memorized chirality by noncovalent interactions is erased by changing conditions such as solvent and temperature. In this study, the dynamic planar chirality of pillar[5]arenes was successfully converted to static planar chirality by introducing bulky groups using covalent bonds. Before introducing the bulky groups, pillar[5]arene with stereogenic carbons at both rims existed as a pair of diastereomers, and thus showed planar chiral inversion dependent on guest solvent chain length. The pS and pR forms, regulated by guest solvents, were both diastereomerically memorized by introducing bulky groups. Furthermore, diastereomeric excess was amplified by crystallization of the pillar[5]arene The subsequent introduction of bulky groups yielded pillar[5]arene with excellent diastereomeric excess (95%de).
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Affiliation(s)
- Keisuke Wada
- Kyoto University - Katsura Campus: Kyoto Daigaku - Katsura Campus, Department of Synthetic Chemistry and Biological Chemistry, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan, 615-8510, Kyoto, JAPAN
| | - Misaki Suzuki
- Kanazawa University - Kakuma Campus: Kanazawa Daigaku, Graduate School of Natural Science and Technology, 920-1192, Kanazawa, JAPAN
| | - Takahiro Kakuta
- Kanazawa Daigaku - Kakuma Campus: Kanazawa Daigaku, Graduate School of Natural Science and Technology, 920-1192, Kanazawa, JAPAN
| | - Tada-Aki Yamagishi
- Kanazawa University - Kakuma Campus: Kanazawa Daigaku, Graduate School of Natural Science and Technology, 920-1192, Kanazawa, JAPAN
| | - Shunsuke Ohtani
- Kyoto University - Katsura Campus: Kyoto Daigaku - Katsura Campus, Department of Synthetic Chemistry and Biological Chemistry, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan, 615-8510, Kyoto, JAPAN
| | - Shixin Fa
- Kyoto University - Katsura Campus: Kyoto Daigaku - Katsura Campus, Department of Synthetic Chemistry and Biological Chemistry, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan, 615-8510, Kyoto, JAPAN
| | - Kenichi Kato
- Kyoto University - Katsura Campus: Kyoto Daigaku - Katsura Campus, Department of Synthetic Chemistry and Biological Chemistry, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan, 615-8510, Kyoto, JAPAN
| | - Shigehisa Akine
- Kanazawa University - Kakuma Campus: Kanazawa Daigaku, WPI Nano Life Science Institute, Kanazawa, JAPAN
| | - Tomoki Ogoshi
- Kyoto Daigaku, Department of Synthetic Chemistry and Biological Chemistry, Katsura, Nishikyo-ku, 615-8510, Kyoto, JAPAN
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11
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Wada K, Suzuki M, Kakuta T, Yamagishi TA, Ohtani S, Fa S, Kato K, Akine S, Ogoshi T. Dynamic‐to‐Static Planar Chirality Conversion in Pillar[5]arenes Regulated by Guest Solvents or Amplified by Crystallization. Angew Chem Int Ed Engl 2023. [DOI: 10.1002/ange.202217971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Affiliation(s)
- Keisuke Wada
- Kyoto University - Katsura Campus: Kyoto Daigaku - Katsura Campus Department of Synthetic Chemistry and Biological Chemistry Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan 615-8510 Kyoto JAPAN
| | - Misaki Suzuki
- Kanazawa University - Kakuma Campus: Kanazawa Daigaku Graduate School of Natural Science and Technology 920-1192 Kanazawa JAPAN
| | - Takahiro Kakuta
- Kanazawa Daigaku - Kakuma Campus: Kanazawa Daigaku Graduate School of Natural Science and Technology 920-1192 Kanazawa JAPAN
| | - Tada-aki Yamagishi
- Kanazawa University - Kakuma Campus: Kanazawa Daigaku Graduate School of Natural Science and Technology 920-1192 Kanazawa JAPAN
| | - Shunsuke Ohtani
- Kyoto University - Katsura Campus: Kyoto Daigaku - Katsura Campus Department of Synthetic Chemistry and Biological Chemistry Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan 615-8510 Kyoto JAPAN
| | - Shixin Fa
- Kyoto University - Katsura Campus: Kyoto Daigaku - Katsura Campus Department of Synthetic Chemistry and Biological Chemistry Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan 615-8510 Kyoto JAPAN
| | - Kenichi Kato
- Kyoto University - Katsura Campus: Kyoto Daigaku - Katsura Campus Department of Synthetic Chemistry and Biological Chemistry Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan 615-8510 Kyoto JAPAN
| | - Shigehisa Akine
- Kanazawa University - Kakuma Campus: Kanazawa Daigaku WPI Nano Life Science Institute Kanazawa JAPAN
| | - Tomoki Ogoshi
- Kyoto Daigaku Department of Synthetic Chemistry and Biological Chemistry KatsuraNishikyo-ku 615-8510 Kyoto JAPAN
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12
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Sakata Y, Nakamura R, Hibi T, Akine S. Speed Tuning of Formation/Dissociation of a Metallorotaxane. Angew Chem Int Ed Engl 2023. [DOI: 10.1002/ange.202217048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Yoko Sakata
- Kanazawa University - Kakuma Campus: Kanazawa Daigaku Graduate School of Natural Science and Technology JAPAN
| | - Ryosuke Nakamura
- Kanazawa University - Kakuma Campus: Kanazawa Daigaku Graduate School of Natural Science and Technology JAPAN
| | - Toshihiro Hibi
- Kanazawa University - Kakuma Campus: Kanazawa Daigaku Graduate School of Natural Science and Technology JAPAN
| | - Shigehisa Akine
- Kanazawa University - Kakuma Campus: Kanazawa Daigaku Graduate School of Natural Science and Technology JAPAN
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13
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Akine S, Nomura K, Takahashi M, Sakata Y, Mori T, Nakanishi W, Ariga K. Synthesis of amphiphilic chiral salen complexes and their conformational manipulation at the air-water interface. Dalton Trans 2023; 52:260-268. [PMID: 36374017 DOI: 10.1039/d2dt03201e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A series of amphiphilic salen complexes, [L1a,bM] and [L2a,bM], were designed and synthesized. These complexes consist of two or four hydrophilic triethylene glycol (TEG) chains and a hydrophobic π-extended metallosalen core based on naphthalene or phenanthrene. The obtained amphiphilic complexes, [L1bM] (M = Ni, Cu, Zn), formed a monolayer at the air-water interface, while the monocationic [L1bCo(MeNH2)2](OTf) did not form a well-defined monolayer. The number of hydrophilic TEG chains also had an influence on the monolayerformation behavior; the tetra-TEG derivatives, [L1bNi] and [L2bNi], showed a pressure rise at a less compressed region than the bis-TEG derivatives, [L1aNi] and [L2aNi]. In addition, the investigation of their compressibility and compression modulus suggested that the tetra-TEG derivatives, [L1bNi] and [L2bNi], are more flexible than the corresponding bis-TEG analogues, [L1aNi] and [L2aNi], and that the phenanthrene derivatives [L1a,bNi] were more rigid than the corresponding naphthalene analogues, [L2a,bNi]. The Langmuir-Blodgett (LB) films of one of the complexes, [L1bNi], showed CD spectra slightly different from that in solution, which may originate from the unique anisotropic environment of the air-water interface. Thus, we demonstrated the possibility of controlling the chiroptical properties of metal complexes by mechanical compression.
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Affiliation(s)
- Shigehisa Akine
- Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan. .,Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Keisuke Nomura
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Mizuho Takahashi
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Yoko Sakata
- Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan. .,Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Taizo Mori
- Research Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan. .,Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
| | - Waka Nakanishi
- Research Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
| | - Katsuhiko Ariga
- Research Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan. .,Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
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14
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Yamada Y, Nakajima H, Kobayashi C, Shuku Y, Awaga K, Akine S, Tanaka K. Synthesis of Isomeric Tb 3+ -Phthalocyanine Double-Decker Complexes Depending on the Difference in the Direction of Coordination Plane and Their Magnetic Properties. Chemistry 2023; 29:e202203884. [PMID: 36592161 DOI: 10.1002/chem.202203884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Invited for the cover of this issue are Kentaro Tanaka at Nagoya University and co-workers. The image depicts three isomers of a terbium(III) phthalocyanine double-decker complex made from C4h symmetrically substituted phthalocyanines and their magnetic properties. Read the full text of the article at 10.1002/chem.202203272.
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Affiliation(s)
- Yasuyuki Yamada
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8602, (Japan).,Research Center for Materials Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8602, (Japan)
| | - Hiroaki Nakajima
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8602, (Japan)
| | - Chisa Kobayashi
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8602, (Japan)
| | - Yoshiaki Shuku
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8602, (Japan)
| | - Kunio Awaga
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8602, (Japan)
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa, 464-8602, (Japan)
| | - Kentaro Tanaka
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8602, (Japan)
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15
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Yamada Y, Nakajima H, Kobayashi C, Shuku Y, Awaga K, Akine S, Tanaka K. Synthesis of Isomeric Tb 3+ -Phthalocyanine Double-Decker Complexes Depending on the Difference in the Direction of Coordination Plane and Their Magnetic Properties. Chemistry 2023; 29:e202203272. [PMID: 36448188 DOI: 10.1002/chem.202203272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/25/2022] [Accepted: 11/25/2022] [Indexed: 12/02/2022]
Abstract
A C4h symmetrically substituted phthalocyanine, 1,8,15,22-tertrakis(2,4-dimethylpent-3-oxy)phthalocyanine (H2 TdMPPc), was used to synthesize Tb3+ -phthalocyanine double-decker complexes ([Tb(TdMPPc)2 ]s). Because H2 TdMPPc has C4h symmetry, S,S, R,R, and meso isomers of [Tb(TdMPPc)2 ] were obtained depending on the difference in the direction of the coordination plane of two C4h -type phthalocyanines with respect to a central Tb3+ ion. We investigated the physical properties of these [Tb(TdMPPc)2 ] isomers, including their single-ion magnetic properties, and found that the spin-reversal energy barrier (Ueff ) of the meso isomer was apparently higher than that of the enantiomers. Detailed crystal structural analyses indicated that the meso isomer has a more symmetrical structure than do the enantiomers, thereby suggesting that the higher Ueff of the meso isomer originated from the more highly symmetrical structure.
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Affiliation(s)
- Yasuyuki Yamada
- Department of Chemistry, Graduate School of Science, Nagoya University Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8602, Japan.,Research Center for Materials Science, Nagoya University Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8602, Japan
| | - Hiroaki Nakajima
- Department of Chemistry, Graduate School of Science, Nagoya University Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8602, Japan
| | - Chisa Kobayashi
- Department of Chemistry, Graduate School of Science, Nagoya University Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8602, Japan
| | - Yoshiaki Shuku
- Department of Chemistry, Graduate School of Science, Nagoya University Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8602, Japan
| | - Kunio Awaga
- Department of Chemistry, Graduate School of Science, Nagoya University Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8602, Japan
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology, Kanazawa University Kakuma-machi, Kanazawa, Ishikawa, 920-1192, Japan
| | - Kentaro Tanaka
- Department of Chemistry, Graduate School of Science, Nagoya University Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8602, Japan
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16
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Shi TH, Nagata Y, Akine S, Ohtani S, Kato K, Ogoshi T. A Twisted Chiral Cavitand with 5-Fold Symmetry and Its Length-Selective Binding Properties. J Am Chem Soc 2022; 144:23677-23684. [PMID: 36529936 DOI: 10.1021/jacs.2c11225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Controlling bottom-up syntheses from chiral seeds to construct architectures with specific chiralities is currently challenging. Herein, a twisted chiral cavitand with 5-fold symmetry was constructed by bottom-up synthesis using corannulene as the chiral seed and pillar[5]arene as the chiral wall. After docking between the seed and the wall, their dynamic chiralities (M and P) are fixed. Moreover, the formed hedges also exhibit M and P chirality. Through dynamic covalent bonding, the thermodynamically stable product is obtained selectively as a pair of enantiomers (MMM and PPP), where all three subcomponents, i.e., the corannulene, hedges, and pillar[5]arene, are tilted in the same direction. Furthermore, the twisted cavitand exhibits length-selective binding to alkylene dibromides, with three maximum binding constants being unexpectedly observed.
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Affiliation(s)
- Tan-Hao Shi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yuuya Nagata
- WPI Institute for Chemical Reaction Design and Discovery (WPI- ICReDD), Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo 060-0810, Japan
| | - Shigehisa Akine
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan.,Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Shunsuke Ohtani
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kenichi Kato
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Tomoki Ogoshi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.,WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan
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17
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Yamada Y, Nakajima H, Kobayashi C, Shuku Y, Awaga K, Akine S, Tanaka K. Synthesis of Isomeric Tb
3+
–Phthalocyanine Double‐Decker Complexes Depending on the Difference in the Direction of Coordination Plane and Their Magnetic Properties. Chemistry 2022. [DOI: 10.1002/chem.202203883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Yasuyuki Yamada
- Department of Chemistry, Graduate School of Science Nagoya University Furo-cho, Chikusa-ku Aichi 464-8602 (Japan)
- Research Center for Materials Science Nagoya University Furo-cho, Chikusa-ku Aichi 464-8602 (Japan)
| | - Hiroaki Nakajima
- Department of Chemistry, Graduate School of Science Nagoya University Furo-cho, Chikusa-ku Aichi 464-8602 (Japan)
| | - Chisa Kobayashi
- Department of Chemistry, Graduate School of Science Nagoya University Furo-cho, Chikusa-ku Aichi 464-8602 (Japan)
| | - Yoshiaki Shuku
- Department of Chemistry, Graduate School of Science Nagoya University Furo-cho, Chikusa-ku Aichi 464-8602 (Japan)
| | - Kunio Awaga
- Department of Chemistry, Graduate School of Science Nagoya University Furo-cho, Chikusa-ku Aichi 464-8602 (Japan)
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Ishikawa 920-1192 (Japan)
| | - Kentaro Tanaka
- Department of Chemistry, Graduate School of Science Nagoya University Furo-cho, Chikusa-ku Aichi 464-8602 (Japan)
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18
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Fa S, Shi TH, Akama S, Adachi K, Wada K, Tanaka S, Oyama N, Kato K, Ohtani S, Nagata Y, Akine S, Ogoshi T. Real-time chirality transfer monitoring from statistically random to discrete homochiral nanotubes. Nat Commun 2022; 13:7378. [PMID: 36450720 PMCID: PMC9712533 DOI: 10.1038/s41467-022-34827-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 11/09/2022] [Indexed: 12/03/2022] Open
Abstract
Real time monitoring of chirality transfer processes is necessary to better understand their kinetic properties. Herein, we monitor an ideal chirality transfer process from a statistically random distribution to a diastereomerically pure assembly in real time. The chirality transfer is based on discrete trimeric tubular assemblies of planar chiral pillar[5]arenes, achieving the construction of diastereomerically pure trimers of pillar[5]arenes through synergistic effect of ion pairing between a racemic rim-differentiated pillar[5]arene pentaacid bearing five benzoic acids on one rim and five alkyl chains on the other, and an optically resolved pillar[5]arene decaamine bearing ten amines. When the decaamine is mixed with the pentaacid, the decaamine is sandwiched by two pentaacids through ten ion pairs, initially producing a statistically random mixture of a homochiral trimer and two heterochiral trimers. The heterochiral trimers gradually dissociate and reassemble into the homochiral trimers after unit flipping of the pentaacid, leading to chirality transfer from the decaamine and producing diastereomerically pure trimers.
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Affiliation(s)
- Shixin Fa
- grid.258799.80000 0004 0372 2033Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510 Japan ,grid.440588.50000 0001 0307 1240School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an, Shaanxi 710072 P.R. China
| | - Tan-hao Shi
- grid.258799.80000 0004 0372 2033Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510 Japan
| | - Suzu Akama
- grid.258799.80000 0004 0372 2033Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510 Japan
| | - Keisuke Adachi
- grid.258799.80000 0004 0372 2033Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510 Japan
| | - Keisuke Wada
- grid.258799.80000 0004 0372 2033Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510 Japan
| | - Seigo Tanaka
- grid.258799.80000 0004 0372 2033Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510 Japan
| | - Naoki Oyama
- grid.258799.80000 0004 0372 2033Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510 Japan
| | - Kenichi Kato
- grid.258799.80000 0004 0372 2033Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510 Japan
| | - Shunsuke Ohtani
- grid.258799.80000 0004 0372 2033Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510 Japan
| | - Yuuya Nagata
- grid.39158.360000 0001 2173 7691WPI Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo, 060-0810 Japan
| | - Shigehisa Akine
- grid.9707.90000 0001 2308 3329WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa, 920-1192 Japan ,grid.9707.90000 0001 2308 3329Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192 Japan
| | - Tomoki Ogoshi
- grid.258799.80000 0004 0372 2033Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510 Japan ,grid.9707.90000 0001 2308 3329WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa, 920-1192 Japan
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19
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Tanaka H, Kobayashi Y, Furukawa K, Okayasu Y, Akine S, Yasuda N, Maeda H. π-Stacked Ion Pairs: Tightly Associated Charged Porphyrins in Ordered Arrangement Enabling Radical-Pair Formation. J Am Chem Soc 2022; 144:21710-21718. [DOI: 10.1021/jacs.2c09589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Hiroki Tanaka
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Yoichi Kobayashi
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Ko Furukawa
- Center for Instrumental Analysis, Institute for Research Promotion Niigata University, Niigata 950-2181, Japan
| | - Yoshinori Okayasu
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology and Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa 920-1192, Japan
| | - Nobuhiro Yasuda
- Diffraction and Scattering Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - Hiromitsu Maeda
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Japan
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20
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Chaudhry MT, Patrick BO, Akine S, MacLachlan MJ. Noncooperative guest binding by metal-free [2 + 2] Schiff-base macrocycles. Org Biomol Chem 2022; 20:8259-8268. [PMID: 36222441 DOI: 10.1039/d2ob01511k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Salphen-based [n + n] macrocycles have been widely explored for their unique chemical and topological properties following metal ion coordination. Despite having vastly different reactivity than their coordinated counterparts, fewer studies have focused on metal-free salphen macrocycles. We investigated the binding of [2 + 2] Schiff-base macrocycle host 3, which contains a central 18-crown-6-like cavity and two N2O2 moieties. This macrocycle strongly binds to spherical cationic guests (K11 ≈ 103-104 M-1, DCM/MeCN). The most robust binding was shown for K+ and Na+, followed by Li+ and Rb+. More sterically demanding cationic guests like dibenzylammonium (DBA+) showed almost no binding. The binding pocket in 3 is slightly smaller than 18-crown-6, resulting in binding outside the cavity, which provides a scaffold appropriate for 2 : 1 complexes, where two host molecules sandwich the guest. All host-guest complexes follow a 2 : 1 noncooperative binding model, where each successive binding event is less likely than the previous, unlike coordinated versions of 3, where most binding is 1 : 1.
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Affiliation(s)
- Mohammad T Chaudhry
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, V6T 1Z1, Canada.
| | - Brian O Patrick
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, V6T 1Z1, Canada.
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa 920-1192, Japan
- WPI Nano Life Science Institute, Kanazawa University, Kanazawa 920-1192, Japan
| | - Mark J MacLachlan
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, V6T 1Z1, Canada.
- WPI Nano Life Science Institute, Kanazawa University, Kanazawa 920-1192, Japan
- Stewart Blusson Quantum Matter Institute, University of British Columbia, 2355 East Mall, Vancouver, BC, V6T 1Z4, Canada
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21
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Onishi K, Ohtani S, Kato K, Fa S, Sakata Y, Akine S, Ogasawara M, Asakawa H, Nagano S, Takashima Y, Mizuno M, Ogoshi T. State- and water repellency-controllable molecular glass of pillar[5]arenes with fluoroalkyl groups by guest vapors. Chem Sci 2022; 13:4082-4087. [PMID: 35440984 PMCID: PMC8985507 DOI: 10.1039/d2sc00828a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 03/03/2022] [Indexed: 01/29/2023] Open
Abstract
Molecular glasses are low-molecular-weight organic compounds that are stable in the amorphous state at room temperature. Herein, we report a state- and water repellency-controllable molecular glass by n-alkane guest vapors. We observed that a macrocyclic host compound pillar[5]arene with the C2F5 fluoroalkyl groups changes from the crystalline to the amorphous state (molecular glass) by heating above its melting point and then cooling to room temperature. The pillar[5]arene molecular glass shows reversible transitions between amorphous and crystalline states by uptake and release of the n-alkane guest vapors, respectively. Furthermore, the n-alkane guest vapor-induced reversible changes in the water contact angle were also observed: water contact angles increased and then reverted back to the original state by the uptake and release of the n-alkane guest vapors, respectively, along with the changes in the chemical structure and roughness on the surface of the molecular glass. The water repellency of the molecular glass could be controlled by tuning the uptake ratio of the n-alkane guest vapor. Pillar[5]arenes with C2F5 substituents showed reversible amorphous–crystal transitions by uptake and release of n-alkane vapors. The amorphous–crystal transitions triggered macroscopic property change such as water repellency.![]()
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Affiliation(s)
- Katsuto Onishi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Shunsuke Ohtani
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Kenichi Kato
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Shixin Fa
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Yoko Sakata
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University Kakuma-machi Kanazawa Ishikawa 920-1192 Japan.,Graduate School of Natural Science and Technology, Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Shigehisa Akine
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University Kakuma-machi Kanazawa Ishikawa 920-1192 Japan.,Graduate School of Natural Science and Technology, Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Moe Ogasawara
- Graduate School of Natural Science and Technology, Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Hitoshi Asakawa
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University Kakuma-machi Kanazawa Ishikawa 920-1192 Japan.,Graduate School of Natural Science and Technology, Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan.,Nanomaterials Research Institute, Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Shusaku Nagano
- Department of Chemistry, College of Science, Rikkyo University 3-34-1 Nishi-Ikebukuro, Toshima Tokyo 171-8501 Japan
| | - Yoshinori Takashima
- Department of Macromolecular Science, Graduate School of Science and Project Research Center for Fundamental Sciences, Graduate School of Science, Osaka University Toyonaka Osaka 560-0043 Japan.,Institute for Advanced Co-Creation Studies, Osaka University Suita Osaka 565-0871 Japan.,Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University Suita Osaka 565-0871 Japan
| | - Motohiro Mizuno
- Graduate School of Natural Science and Technology, Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan.,Nanomaterials Research Institute, Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Tomoki Ogoshi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan .,WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University Kakuma-machi Kanazawa Ishikawa 920-1192 Japan
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22
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Sakamoto S, Taniguchi T, Sakata Y, Akine S, Nishimura T, Maeda K. Synthesis of Pentaarylcyclobutenylrhodium(I) Complexes and Their Reactivity and Initiation Mechanism in Polymerization of Monosubstituted Acetylenes. Organometallics 2022. [DOI: 10.1021/acs.organomet.1c00712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shiori Sakamoto
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Tsuyoshi Taniguchi
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Yoko Sakata
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
- Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Tatsuya Nishimura
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Katsuhiro Maeda
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
- Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
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23
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Aizawa T, Akine S, Saiki T, Nakamura T, Nabeshima T. Rotaxane formation by an allosteric pseudomacrocyclic anion receptor utilising kinetically labile copper( i) coordination properties. Dalton Trans 2022; 51:17277-17282. [DOI: 10.1039/d2dt03331c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A pseudomacrocyclic receptor with hydrogen bonding units spontaneously generates a rotaxane with an anionic axle possessing large end groups.
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Affiliation(s)
- Taeko Aizawa
- Faculty of Pure and Applied Sciences and Tsukuba Research Center for Energy Materials Science (TREMS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology and WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Toshiyuki Saiki
- Faculty of Pure and Applied Sciences and Tsukuba Research Center for Energy Materials Science (TREMS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
| | - Takashi Nakamura
- Faculty of Pure and Applied Sciences and Tsukuba Research Center for Energy Materials Science (TREMS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
| | - Tatsuya Nabeshima
- Faculty of Pure and Applied Sciences and Tsukuba Research Center for Energy Materials Science (TREMS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
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24
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Sakata Y, Tsuyuki R, Sugimoto S, Akine S. Metal-dependent selective formation of calix[4]arene assemblies based on dynamic covalent chemistry. Chem Commun (Camb) 2021; 57:13510-13513. [PMID: 34817475 DOI: 10.1039/d1cc05553d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The reaction of calix[4]arene derivatives 1a and 1b bearing four salicylaldehyde moieties with 1,3-propanediamine gave macrocyclic trimers 5a and 5b, respectively, which have intramolecular bridges formed via the flattened cone conformation. In contrast, a capsular-shaped dimeric cage [7a·2Na]2+ was selectively formed when the conformation of the calix[4]arene moiety of 1a was fixed in the spread cone conformation by complexation with Na+ at the lower-rim amide groups.
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Affiliation(s)
- Yoko Sakata
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan. .,Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Ryo Tsuyuki
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
| | - Shingo Sugimoto
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan. .,Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
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25
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Yamada Y, Miwa Y, Toyoda Y, Yamaguchi T, Akine S, Tanaka K. Synthesis of a monocationic μ-nitrido-bridged iron porphycene dimer and its methane oxidation activity. Dalton Trans 2021; 50:16775-16781. [PMID: 34763351 DOI: 10.1039/d1dt02922c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we report the synthesis of a monocationic μ-nitrido-bridged iron porphycene dimer, a structural analogue of a monocationic μ-nitrido-bridged iron phthalocyanine dimer, which is known to be one of the most potent molecule-based catalysts for methane oxidation. 1H-NMR and single-crystal X-ray structural analyses showed that the porphycene complex includes two Fe(IV) ions, and the structure around the Fe-NFe core is quite similar to that of the monocationic μ-nitrido-bridged iron phthalocyanine dimer. Although methane was oxidized into MeOH, HCHO, and HCOOH in the presence of a silica-supported catalyst of this monocationic μ-nitrido-bridged iron porphycene dimer in an acidic aqueous solution containing excess H2O2, its reactive intermediate was not a high-valence iron-oxo species, as in the case of a monocationic μ-nitrido-bridged iron phthalocyanine dimer, but ˙OH. It is suggested that the high-valent iron-oxo species of the μ-nitrido-bridged iron porphycene dimer was gradually decomposed under these reaction conditions, and the decomposed compound catalyzed a Fenton-type reaction. This result indicates that the stability of the oxo-species is indispensable for achieving high catalytic methane oxidation activity using a μ-nitrido-bridged iron porphyrinoid dimer with an Fe-NFe core as a catalyst.
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Affiliation(s)
- Yasuyuki Yamada
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan. .,Research Center for Materials Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan.,JST, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan
| | - Yusuke Miwa
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan.
| | - Yuka Toyoda
- Research Center for Materials Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
| | - Tomoo Yamaguchi
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan.
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Kentaro Tanaka
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan.
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26
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Chaudhry MT, Akine S, MacLachlan MJ. Contemporary macrocycles for discrete polymetallic complexes: precise control over structure and function. Chem Soc Rev 2021; 50:10713-10732. [PMID: 34378585 DOI: 10.1039/d1cs00225b] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The growth of multimetallic clusters and complexes can proceed in the presence of suitable ligands, but often leads to polydisperse structures with poor solubility. As an alternative approach, macrocyclic molecules can anchor the multimetallic complex, directing its formation and stabilizing the resulting product. This approach can provide excellent control over the growth of clusters, and offers a handle to control solubility and other properties of the resulting complexes. In this Tutorial Review, we discuss recent activity (primarily the last two decades) directed at the controlled and reproducible synthesis of multimetallic complexes using macrocyclic ligands. Throughout the review, we focus on the unusual structures that are only accessible by using macrocycles as ligands, and their unique properties.
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Affiliation(s)
- Mohammad T Chaudhry
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1, Canada.
| | - Shigehisa Akine
- WPI Nano Life Science Institute, Kanazawa University, Kanazawa 920-1192, Japan. .,Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa 920-1192, Japan
| | - Mark J MacLachlan
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1, Canada. .,WPI Nano Life Science Institute, Kanazawa University, Kanazawa 920-1192, Japan. .,Quantum Matter Institute, University of British Columbia, 2355 East Mall, Vancouver, BC, V6T 1Z4, Canada
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27
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Sakamoto S, Taniguchi T, Sakata Y, Akine S, Nishimura T, Maeda K. Rhodium(I) Complexes Bearing an Aryl‐Substituted 1,3,5‐Hexatriene Chain: Catalysts for Living Polymerization of Phenylacetylene and Potential Helical Chirality of 1,3,5‐Hexatrienes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108032] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Shiori Sakamoto
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Tsuyoshi Taniguchi
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Yoko Sakata
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- Nano Life Science Institute (WPI-NanoLSI) Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Tatsuya Nishimura
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Katsuhiro Maeda
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- Nano Life Science Institute (WPI-NanoLSI) Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
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28
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Akine S, Miyashita M, Nabeshima T. Enhancement of Alkali Metal Ion Recognition by Metalation of a Tris(saloph) Cryptand Having Benzene Rings at the Bridgeheads. Inorg Chem 2021; 60:12961-12971. [PMID: 34310880 DOI: 10.1021/acs.inorgchem.1c01376] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A cryptand derivative, H6L, which has three H2saloph arms connected by two benzene ring bridgeheads, was synthesized and converted into the trinuclear metallocryptand, LNi3. The nonmetalated host, H6L, was found to bind to alkali metal ions (Na+, K+, Rb+, Cs+; logKa = 3.37-6.67) in its well-defined cavity in DMSO/chloroform (1:9). The binding affinity was enhanced by 1-2 orders of magnitude upon the conversion into the metallocryptand, LNi3, which can be explained by the more polarized phenoxo groups in the [Ni(saloph)] arms. The guest binding affinity of Na+ < K+ < Rb+ ≈ Cs+ was clearly demonstrated by the 1H NMR competition experiments. The DFT calculations suggested that the Rb+ ion most suitably fit into the benzene-benzene spacing with a cation-π interaction and that only the largest Cs+ ion can almost equally interact with all six phenoxo oxygen donor atoms. The metallocryptand, LNi3, also showed a strong binding affinity to Ag+ by taking advantage of cation-π interactions, which was confirmed by spectroscopic titrations and crystallographic analysis as well as DFT calculations. Thus, the well-defined three-dimensional cavity of LNi3 was found to be suitable for strong binding with alkali metal ions as well as Ag+.
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Affiliation(s)
- Shigehisa Akine
- Graduate School of Natural Science and Technology/Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Masato Miyashita
- Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
| | - Tatsuya Nabeshima
- Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
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29
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Shimizu T, Wakamatsu K, Yamada Y, Toyoda Y, Akine S, Yoza K, Yoshikawa H. Application of μ-Nitrido- and μ-Carbido-Bridged Iron Phthalocyanine Dimers as Cathode-Active Materials for Rechargeable Batteries. ACS Appl Mater Interfaces 2021; 13:40612-40617. [PMID: 34415717 DOI: 10.1021/acsami.1c10540] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
μ-Nitrido- and μ-carbido-bridged iron phthalocyanine dimers, when used as cathode-active materials for rechargeable lithium batteries, showed four stable redox waves in cyclic voltammetry studies in solution and a stable discharge capacity of approximately 60 mAh g-1 after 200 cycles. These results indicate that μ-heteroatom-bridged iron phthalocyanine dimers are good platforms for designing novel phthalocyanine-based electrode-active materials.
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Affiliation(s)
- Takeshi Shimizu
- National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago, Tottori 683-8502, Japan
| | - Katsuhiro Wakamatsu
- School of Science and Technology, Kwansei Gakuin University, Gakuen 2-1, Sanda 669-1337, Japan
| | - Yasuyuki Yamada
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
- Research Center for Materials Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
- PRESTO, Japan Science and Technology Agency (JST), Kawaguchi 332-0012, Japan
| | - Yuka Toyoda
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
- Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Kenji Yoza
- Bruker Japan, 3-9, Moriya-cho, Kanagawa-ku, Yokohama 221-0022, Japan
| | - Hirofumi Yoshikawa
- School of Science and Technology, Kwansei Gakuin University, Gakuen 2-1, Sanda 669-1337, Japan
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30
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Sakamoto S, Taniguchi T, Sakata Y, Akine S, Nishimura T, Maeda K. Rhodium(I) Complexes Bearing an Aryl-Substituted 1,3,5-Hexatriene Chain: Catalysts for Living Polymerization of Phenylacetylene and Potential Helical Chirality of 1,3,5-Hexatrienes. Angew Chem Int Ed Engl 2021; 60:22201-22206. [PMID: 34355472 DOI: 10.1002/anie.202108032] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Indexed: 11/06/2022]
Abstract
Unique and bench-stable rhodium(I) complexes bearing an aryl-substituted 1,3,5-hexatriene chain have been synthesized by the reactions of bicyclo[2.2.1]hepta-2,5-diene-rhodium(I) chloride dimer ([Rh(nbd)Cl]2) with aryl boronic acids and diphenylacetylenes in the presence of a 50% aqueous solution of KOH. X-ray crystallographic analysis of the isolated complexes indicated a square-planar structure stabilized by a strong interaction with one of the aryl groups on the 1,3,5-hexatriene chain, which has a helical structure. The helical chirality of the isolated rhodium complexes was confirmed to be sufficiently stable to be resolved by chiral HPLC at room temperature into enantiomers, which showed mirror-imaged CD spectra. It was confirmed that the isolated rhodium complex worked as an initiator for living polymerization of phenylacetylene to give cis-stereoregular poly(phenylacetylene) with a well-controlled molecular weight.
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Affiliation(s)
- Shiori Sakamoto
- Kanazawa University Graduate School of Natural Science and Technology: Kanazawa Daigaku Daigakuin Shizen Kagaku Kenkyuka, Graduate School of Natural Science and Technology, JAPAN
| | - Tsuyoshi Taniguchi
- Kanazawa University, Institute of Medical, Pharmaceutical and Health Science, Kakuma-machi, 920-1192, Kanazawa, JAPAN
| | - Yoko Sakata
- Kanazawa University Graduate School of Natural Science and Technology: Kanazawa Daigaku Daigakuin Shizen Kagaku Kenkyuka, Graduate School of Natural Science and Technoloty, JAPAN
| | - Shigehisa Akine
- Kanazawa University: Kanazawa Daigaku, Nano Life Science Institute, JAPAN
| | - Tatsuya Nishimura
- Kanazawa University Graduate School of Natural Science and Technology: Kanazawa Daigaku Daigakuin Shizen Kagaku Kenkyuka, Graduate School of Natural Science and Technology, JAPAN
| | - Katsuhiro Maeda
- Kanazawa University: Kanazawa Daigaku, Nano Life Science Institute, JAPAN
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31
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Abstract
This review describes the control of guest binding behavior of metal-containing host molecules that is driven by ligand exchange reactions at the metal centers. Recently, a vast number of metal-containing host molecules including metal-assisted self-assembled structures have been developed, and the structural transformation after construction of the host framework has now been of interest from the viewpoint of functional switching and tuning. Among the various kinds of chemical transformations, ligand exchange has a great advantage in the structural conversions of metal-containing hosts, because ligand exchange usually proceeds under mild conditions that do not affect the host framework. In this review, the structural transformations are classified into three types: (1) weak-link approach, (2) subcomponent substitution, and (3) post-metalation modification, according to the type of coordination motif. The control of their guest binding behavior by the structural transformations is discussed in detail.
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Affiliation(s)
- Shigehisa Akine
- Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
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32
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Ikbal SA, Sakata Y, Akine S. A chiral spirobifluorene-based bis(salen) zinc(ii) receptor towards highly enantioselective binding of chiral carboxylates. Dalton Trans 2021; 50:4119-4123. [PMID: 33662079 DOI: 10.1039/d1dt00218j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
We have designed a new chiral receptor based on two salen zinc(ii) complex units connected with a spirobifluorene framework. The chiral receptor is proven to enantioselectively bind chiral carboxylate guests and the differences between the binding constants of enantiomeric guests were up to more than one order of magnitude.
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Affiliation(s)
- Sk Asif Ikbal
- Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
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33
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Morita H, Akine S, Nakamura T, Nabeshima T. Exclusive formation of a meridional complex of a tripodand and perfect suppression of guest recognition. Chem Commun (Camb) 2021; 57:2124-2127. [PMID: 33538748 DOI: 10.1039/d1cc00146a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Tripodal ligands have been utilized for complexation-induced structural change, but all the tripodal complexes reported so far are facial isomers, which do not completely reduce the recognition ability by closing the binding pocket. We now report the first example of the selective synthesis of a meridional tripodal complex. The tripodal ligand with a 1,3,5-triethyl-2,4,6-tris(methylene)benzene pivot possessing 2,2'-bipyridine on each arm exclusively formed a mononuclear complex with the mer-[Fe(bpy)]2+ unit. The meridional tripodal complex has a unique structure in which one bipyridine unit is self-penetrated. As a result of cavity blockage, the ion recognition property of the tripodand has been successfully suppressed.
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Affiliation(s)
- Hiroki Morita
- Faculty of Pure and Applied Sciences and Tsukuba Research Center for Energy Materials Science (TREMS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan.
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology and WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Takashi Nakamura
- Faculty of Pure and Applied Sciences and Tsukuba Research Center for Energy Materials Science (TREMS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan.
| | - Tatsuya Nabeshima
- Faculty of Pure and Applied Sciences and Tsukuba Research Center for Energy Materials Science (TREMS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan.
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34
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Sakata Y, Okada M, Akine S. Cover Feature: Guest Recognition Control Accompanied by Stepwise Gate Closing and Opening of a Macrocyclic Metallohost (Chem. Eur. J. 7/2021). Chemistry 2021. [DOI: 10.1002/chem.202004681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yoko Sakata
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- Nano Life Science Institute (WPI-NanoLSI) Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Masahiro Okada
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- Nano Life Science Institute (WPI-NanoLSI) Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
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35
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Sakata Y, Okada M, Akine S. Guest Recognition Control Accompanied by Stepwise Gate Closing and Opening of a Macrocyclic Metallohost. Chemistry 2021; 27:2284-2288. [PMID: 33026677 DOI: 10.1002/chem.202004487] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Indexed: 12/12/2022]
Abstract
Host-guest binding behavior of macrocyclic hosts is significantly influenced by the shapes and sizes of the hosts. In particular, closing/opening the apertures of the hosts controls the guest uptake/release. A post-metalation modification method was used to achieve the open/close conversions. The starting open complex, [LCo2 (pip)4 ](OTf)2 , was efficiently converted to the closed complex, [LCo2 (hda)2 ](OTf)2 , which has a doubly bridged structure. The conversion of this closed complex to the open complex [LCo2 (hda)2 (OAc)]+ was too slow to be completed, but this gate-opening was dramatically accelerated by the addition of Na+ . The Na+ binding was also significantly enhanced by the gate-opening, that is, conversion of [LCo2 (hda)2 ]2+ to [LCo2 (hda)2 (OAc)]+ .
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Affiliation(s)
- Yoko Sakata
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan.,Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Masahiro Okada
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan.,Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
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36
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Sakata Y, Ogura T, Akine S. Efficient formation of [3]pseudorotaxane based on cooperative complexation of dibenzo-24-crown-8 with diphenylviologen axle. Chem Commun (Camb) 2020; 56:8735-8738. [PMID: 32558868 DOI: 10.1039/d0cc03131c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A novel cooperative [3]pseudorotaxane system consisting of dibenzo-24-crown-8 (DB24C8) and diphenylviologen axle has been developed. The two-step formation of the [3]pseudorotaxane occurred in a positive-cooperative manner. The corresponding [3]rotaxane was successfully obtained from just a stoichiometric mixture of each component by end-capping without dissociation.
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Affiliation(s)
- Yoko Sakata
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
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Sakata Y, Okada M, Tamiya M, Akine S. Cover Feature: Post‐Metalation Modification of a Macrocyclic Dicobalt(III) Metallohost by Site‐Selective Ligand Exchange for Guest Recognition Control (Chem. Eur. J. 34/2020). Chemistry 2020. [DOI: 10.1002/chem.202002255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yoko Sakata
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- Nano Life Science Institute (WPI-NanoLSI)Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Masahiro Okada
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Munehiro Tamiya
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Shigehisa Akine
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- Nano Life Science Institute (WPI-NanoLSI)Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
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38
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Sakata Y, Okada M, Tamiya M, Akine S. Post‐Metalation Modification of a Macrocyclic Dicobalt(III) Metallohost by Site‐Selective Ligand Exchange for Guest Recognition Control. Chemistry 2020; 26:7595-7601. [DOI: 10.1002/chem.202001072] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 04/01/2020] [Indexed: 12/31/2022]
Affiliation(s)
- Yoko Sakata
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- Nano Life Science Institute (WPI-NanoLSI)Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Masahiro Okada
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Munehiro Tamiya
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Shigehisa Akine
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- Nano Life Science Institute (WPI-NanoLSI)Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
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39
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Fa S, Sakata Y, Akine S, Ogoshi T. Non‐Covalent Interactions Enable the Length‐Controlled Generation of Discrete Tubes Capable of Guest Exchange. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916515] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shixin Fa
- Department of Synthetic Chemistry and Biological Chemistry Graduate School of Engineering Kyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Yoko Sakata
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa Ishikawa 920-1192 Japan
- WPI Nano Life Science Institute (WPI-NanoLSI) Kanazawa University Kakuma-machi Kanazawa Ishikawa 920-1192 Japan
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa Ishikawa 920-1192 Japan
- WPI Nano Life Science Institute (WPI-NanoLSI) Kanazawa University Kakuma-machi Kanazawa Ishikawa 920-1192 Japan
| | - Tomoki Ogoshi
- Department of Synthetic Chemistry and Biological Chemistry Graduate School of Engineering Kyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
- WPI Nano Life Science Institute (WPI-NanoLSI) Kanazawa University Kakuma-machi Kanazawa Ishikawa 920-1192 Japan
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40
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Fa S, Sakata Y, Akine S, Ogoshi T. Non‐Covalent Interactions Enable the Length‐Controlled Generation of Discrete Tubes Capable of Guest Exchange. Angew Chem Int Ed Engl 2020; 59:9309-9313. [DOI: 10.1002/anie.201916515] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Indexed: 11/08/2022]
Affiliation(s)
- Shixin Fa
- Department of Synthetic Chemistry and Biological ChemistryGraduate School of EngineeringKyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Yoko Sakata
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa Ishikawa 920-1192 Japan
- WPI Nano Life Science Institute (WPI-NanoLSI)Kanazawa University Kakuma-machi Kanazawa Ishikawa 920-1192 Japan
| | - Shigehisa Akine
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa Ishikawa 920-1192 Japan
- WPI Nano Life Science Institute (WPI-NanoLSI)Kanazawa University Kakuma-machi Kanazawa Ishikawa 920-1192 Japan
| | - Tomoki Ogoshi
- Department of Synthetic Chemistry and Biological ChemistryGraduate School of EngineeringKyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
- WPI Nano Life Science Institute (WPI-NanoLSI)Kanazawa University Kakuma-machi Kanazawa Ishikawa 920-1192 Japan
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Affiliation(s)
- Shigehisa Akine
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Yoko Sakata
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
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42
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Matsutani T, Itazaki M, Akine S, Moriuchi T. Macrocyclic dimer of Fc(NHC(O)PPh2-AuCl)2 induced by aurophilic interactions, and chirality induction into Fc core. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121182] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Cametti M, Sakata Y, Martí-Rujas J, Akine S. ON/OFF Control of the Flipping Motion of Diuranyl Bis(Salophen) Macrocycle by Extremely Strong Binding with Fluoride Ion. Inorg Chem 2019; 58:14871-14875. [PMID: 31617713 DOI: 10.1021/acs.inorgchem.9b02587] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Diuranyl bis(salophen) complex 1 features a relatively slow conformational motion, induced by an intramolecular O═U═O···UO2 binding motif, which interconverts the two nonsymmetric halves of the ligand. This flipping motion, which constitutes one of the fundamental molecular motions, can be completely halted by addition of fluoride anion, which is bound to 1, reaching one of the highest affinities reported to date. This system represents a model to study flipping dynamics in light of the possibility of developing novel types of molecular machines based on it.
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Affiliation(s)
- Massimo Cametti
- Department of Chemistry, Materials and Chemical Engineering, "Giulio Natta" , Politecnico di Milano , Via Luigi Mancinelli 7 , Milan 20131 , Italy
| | - Yoko Sakata
- Nano Life Science Institute (WPI-NanoLSI)/Graduate School of Natural Science and Technology , Kanazawa University , Kakuma-machi , Kanazawa 920-1192 , Japan
| | - Javier Martí-Rujas
- Department of Chemistry, Materials and Chemical Engineering, "Giulio Natta" , Politecnico di Milano , Via Luigi Mancinelli 7 , Milan 20131 , Italy.,Center for Nano Science and Technology@Polimi , Istituto Italiano di Tecnologia , Via Pascoli 70/3 , 20133 Milano , Italy
| | - Shigehisa Akine
- Nano Life Science Institute (WPI-NanoLSI)/Graduate School of Natural Science and Technology , Kanazawa University , Kakuma-machi , Kanazawa 920-1192 , Japan
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44
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Sakata Y, Tamiya M, Okada M, Akine S. Switching of Recognition First and Reaction First Mechanisms in Host–Guest Binding Associated with Chemical Reactions. J Am Chem Soc 2019; 141:15597-15604. [DOI: 10.1021/jacs.9b06926] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yoko Sakata
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University Kakuma-machi, Kanazawa 920-1192, Japan
| | - Munehiro Tamiya
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Masahiro Okada
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University Kakuma-machi, Kanazawa 920-1192, Japan
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45
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Hirao T, Hisano N, Akine S, Kihara SI, Haino T. Ring–Chain Competition in Supramolecular Polymerization Directed by Molecular Recognition of the Bisporphyrin Cleft. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01012] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Takehiro Hirao
- Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Naoyuki Hisano
- Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology and WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Shin-ichi Kihara
- Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Takeharu Haino
- Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
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46
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Sakata Y, Chiba S, Miyashita M, Nabeshima T, Akine S. Ligand Exchange Strategy for Tuning of Helicity Inversion Speeds of Dynamic Helical Tri(saloph) Metallocryptands. Chemistry 2019; 25:2962-2966. [PMID: 30600562 DOI: 10.1002/chem.201805799] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 12/26/2018] [Indexed: 11/09/2022]
Abstract
We developed a new strategy, ligand exchange strategy, for tuning the response speeds of helicity inversion of a metal-containing helical structure. This is based on the exchange of the two axial amine ligands of the octahedral Co3+ centers in the metallocryptands [LCo3 X6 ] (X=axial amine ligand). The response speeds of the helicity induction were controlled by using different combinations of achiral and chiral amines as the starting and entering ligands, respectively. The response speeds of the helicity inversion from P to M were also tuned by using different combinations of chiral amines.
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Affiliation(s)
- Yoko Sakata
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan.,Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Shunsuke Chiba
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Masato Miyashita
- Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8571, Japan
| | - Tatsuya Nabeshima
- Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8571, Japan
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan.,Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
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47
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Ogoshi T, Hamada Y, Sueto R, Sakata Y, Akine S, Moeljadi AMP, Hirao H, Kakuta T, Yamagishi TA, Mizuno M. Host-Guest Complexation Using Pillar[5]arene Crystals: Crystal-Structure Dependent Uptake, Release, and Molecular Dynamics of an Alkane Guest. Chemistry 2019; 25:2497-2502. [PMID: 30565324 DOI: 10.1002/chem.201805733] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Indexed: 01/14/2023]
Abstract
Host-guest complexation has been mainly investigated in solution, and it is unclear how guest molecules access the assembled structures of host and dynamics of guest molecules in the crystal state. In this study, we studied the uptake, release, and molecular dynamics of n-hexane vapor in the crystal state of pillar[5]arenes bearing different substituents. Pillar[5]arene bearing 10 ethyl groups yielded a crystal structure of herringbone-type 1:1 complexes with n-hexane, whereas pillar[5]arene with 10 allyl groups formed 1:1 complexes featuring a one-dimensional (1D) channel structure. For pillar[5]arene bearing 10 benzyl groups, one molecule of n-hexane was located in the cavity of pillar[5]arene, and another n-hexane molecule was located outside of the cavity between two pillar[5]arenes. The substituent-dependent differences in molecular arrangement influenced the uptake, release, and molecular dynamics of the n-hexane guest. The substituent effects were not observed in host-guest chemistry in solution, and these features are unique for the crystal state host-guest chemistry of pillar[5]arenes.
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Affiliation(s)
- Tomoki Ogoshi
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan.,WPI Nano Life Science Institute, Kanazawa University, Kanazawa, 920-1192, Japan.,JST, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan
| | - Yukie Hamada
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Ryuta Sueto
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Yoko Sakata
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan.,WPI Nano Life Science Institute, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan.,WPI Nano Life Science Institute, Kanazawa University, Kanazawa, 920-1192, Japan
| | | | - Hajime Hirao
- JST, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan.,Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Takahiro Kakuta
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan.,WPI Nano Life Science Institute, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Tada-Aki Yamagishi
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Motohiro Mizuno
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
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Ogoshi T, Hamada Y, Sueto R, Sakata Y, Akine S, Moeljadi AMP, Hirao H, Kakuta T, Yamagishi T, Mizuno M. Front Cover: Host–Guest Complexation Using Pillar[5]arene Crystals: Crystal‐Structure Dependent Uptake, Release, and Molecular Dynamics of an Alkane Guest (Chem. Eur. J. 10/2019). Chemistry 2019. [DOI: 10.1002/chem.201900219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tomoki Ogoshi
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- WPI Nano Life Science InstituteKanazawa University Kanazawa 920–1192 Japan
- JST, PRESTO 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
| | - Yukie Hamada
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Ryuta Sueto
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Yoko Sakata
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- WPI Nano Life Science InstituteKanazawa University Kanazawa 920–1192 Japan
| | - Shigehisa Akine
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- WPI Nano Life Science InstituteKanazawa University Kanazawa 920–1192 Japan
| | | | - Hajime Hirao
- JST, PRESTO 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
- Department of ChemistryCity University of Hong Kong Tat Chee Avenue Kowloon, Hong Kong China
| | - Takahiro Kakuta
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- WPI Nano Life Science InstituteKanazawa University Kanazawa 920–1192 Japan
| | - Tada‐aki Yamagishi
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Motohiro Mizuno
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
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49
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Ogoshi T, Hamada Y, Sueto R, Sakata Y, Akine S, Moeljadi AMP, Hirao H, Kakuta T, Yamagishi T, Mizuno M. Host–Guest Complexation Using Pillar[5]arene Crystals: Crystal‐Structure Dependent Uptake, Release, and Molecular Dynamics of an Alkane Guest. Chemistry 2019. [DOI: 10.1002/chem.201900220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tomoki Ogoshi
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- WPI Nano Life Science InstituteKanazawa University Kanazawa 920–1192 Japan
- JST, PRESTO 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
| | - Yukie Hamada
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Ryuta Sueto
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Yoko Sakata
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- WPI Nano Life Science InstituteKanazawa University Kanazawa 920–1192 Japan
| | - Shigehisa Akine
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- WPI Nano Life Science InstituteKanazawa University Kanazawa 920–1192 Japan
| | | | - Hajime Hirao
- JST, PRESTO 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
- Department of ChemistryCity University of Hong Kong Tat Chee Avenue Kowloon, Hong Kong China
| | - Takahiro Kakuta
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- WPI Nano Life Science InstituteKanazawa University Kanazawa 920–1192 Japan
| | - Tada‐aki Yamagishi
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Motohiro Mizuno
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
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50
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Sakata Y, Chiba S, Miyashita M, Nabeshima T, Akine S. Ligand Exchange Strategy for Tuning of Helicity Inversion Speeds of Dynamic Helical Tri(saloph) Metallocryptands. Chemistry 2019. [DOI: 10.1002/chem.201900298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yoko Sakata
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- Nano Life Science Institute (WPI-NanoLSI)Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Shunsuke Chiba
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Masato Miyashita
- Faculty of Pure and Applied SciencesUniversity of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305-8571 Japan
| | - Tatsuya Nabeshima
- Faculty of Pure and Applied SciencesUniversity of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305-8571 Japan
| | - Shigehisa Akine
- Graduate School of Natural Science and TechnologyKanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- Nano Life Science Institute (WPI-NanoLSI)Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
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