1
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Fujimura Y, Teranishi Y. Determination of the barrier height of a crystalline dipolar molecular rotor directly from temperature‐dependent dielectric spectra. J CHIN CHEM SOC-TAIP 2022. [DOI: 10.1002/jccs.202200408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Yuichi Fujimura
- Department of Chemistry, Graduate School of Science Tohoku University Sendai Japan
| | - Yoshiaki Teranishi
- Institute of Physics National Yang Ming Chiao Tung University Hsinchu Taiwan
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2
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Ehnbom A, Gladysz JA. Gyroscopes and the Chemical Literature, 2002–2020: Approaches to a Nascent Family of Molecular Devices. Chem Rev 2021; 121:3701-3750. [DOI: 10.1021/acs.chemrev.0c01001] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Andreas Ehnbom
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, Texas 77842-3012, United States
| | - John A. Gladysz
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, Texas 77842-3012, United States
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3
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Solid-State 2H NMR Study for Deuterated Phenylene Dynamics in a Crystalline Gyroscope-Like Molecule. CHEMISTRY 2021. [DOI: 10.3390/chemistry3010004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Molecular rotors have earned substantial popularity in recent times, owing to the unique dependence of its crystalline properties on the rotational dynamics of the rotor. We have recently reported the synthesis and crystal structure of a phenylene-bridged macrocage as a gyroscope-like molecule in the crystalline state. The dynamics of the phenylene moiety was probed by solid-state 13C CP/MAS proton dipolar dephasing NMR spectroscopy. Herein, solid-state 2H NMR studies were performed to study the dynamics of the gyroscope-like molecule with a deuterated rotor in the crystalline state. A spectrum with a narrow line shape was obtained at 300 K. The facile exchange among three stationary states, which was observed by X-ray crystallography, was clearly confirmed. Additionally, a crystal-to-crystal phase transition that switches the motion of the rotor was observed in the DSC analysis of the powdered sample.
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4
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Inagaki Y, Ueda S, Yamaguchi K, Setaka W. A Furan-2,5-diyl Bridged Macrocage as a Highly Distorted Molecular Gyrotop. CHEM LETT 2020. [DOI: 10.1246/cl.200533] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yusuke Inagaki
- Division of Applied Chemistry, Faculty of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Satsuki Ueda
- Division of Applied Chemistry, Faculty of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Kentaro Yamaguchi
- Faculty of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa 769-2193, Japan
| | - Wataru Setaka
- Division of Applied Chemistry, Faculty of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
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5
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Setaka W, Inagaki Y, Yamaguchi K. Chemistry of Macrocage Molecules with a Bridged π-Electron System as Crystalline Molecular Gyrotops. J SYN ORG CHEM JPN 2019. [DOI: 10.5059/yukigoseikyokaishi.77.813] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Wataru Setaka
- Division of Applied Chemistry, Faculty of Urban Environmental Sciences, Tokyo Metropolitan University
| | | | - Kentaro Yamaguchi
- Faculty of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University
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6
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Hashimoto H, Inagaki Y, Momma H, Kwon E, Yamaguchi K, Setaka W. Polarized fluorescence of a crystal having uniaxially oriented molecules by a carbazole-diyl-bridged macrocage. CrystEngComm 2019. [DOI: 10.1039/c9ce00706g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An axially oriented π-electron system is achieved in a single crystal of a macrocage molecule, and polarized fluorescence of the single crystal was observed.
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Affiliation(s)
- Hikaru Hashimoto
- Division of Applied Chemistry
- Faculty of Urban Environmental Sciences
- Tokyo Metropolitan University
- Hachioji
- Japan
| | - Yusuke Inagaki
- Division of Applied Chemistry
- Faculty of Urban Environmental Sciences
- Tokyo Metropolitan University
- Hachioji
- Japan
| | - Hiroyuki Momma
- Research and Analytical Center for Giant Molecules
- Graduate School of Science
- Tohoku University
- Sendai
- Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules
- Graduate School of Science
- Tohoku University
- Sendai
- Japan
| | - Kentaro Yamaguchi
- Faculty of Pharmaceutical Sciences at Kagawa Campus
- Tokushima Bunri University
- Sanuki
- Japan
| | - Wataru Setaka
- Division of Applied Chemistry
- Faculty of Urban Environmental Sciences
- Tokyo Metropolitan University
- Hachioji
- Japan
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7
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Takashima H, Inagaki Y, Momma H, Kwon E, Yamaguchi K, Setaka W. Ferrocene-diyl Bridged Macrocages: Steric Effects of the Cage on the Redox Properties of Ferrocene Moiety. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00154] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
| | | | - Hiroyuki Momma
- Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University, Aoba-ku, Sendai, 980-8578, Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University, Aoba-ku, Sendai, 980-8578, Japan
| | - Kentaro Yamaguchi
- Faculty of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa 769-2193, Japan
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8
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Fujiwara A, Inagaki Y, Momma H, Kwon E, Yamaguchi K, Kanno M, Kono H, Setaka W. A crystalline molecular gyrotop with a biphenylene dirotor and its temperature-dependent birefringence. CrystEngComm 2017. [DOI: 10.1039/c7ce01081h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A crystalline molecular gyrotop with a biphenylene dirotor showed a reduction in the birefringence with increasing temperature.
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Affiliation(s)
- Atsushi Fujiwara
- Division of Applied Chemistry
- Faculty of Urban Environmental Sciences
- Tokyo Metropolitan University
- Hachioji
- Japan
| | - Yusuke Inagaki
- Division of Applied Chemistry
- Faculty of Urban Environmental Sciences
- Tokyo Metropolitan University
- Hachioji
- Japan
| | - Hiroyuki Momma
- Research and Analytical Center for Giant Molecules
- Graduate School of Science
- Tohoku University
- Sendai
- Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules
- Graduate School of Science
- Tohoku University
- Sendai
- Japan
| | - Kentaro Yamaguchi
- Faculty of Pharmaceutical Sciences at Kagawa Campus
- Tokushima Bunri University
- Sanuki
- Japan
| | - Manabu Kanno
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai
- Japan
| | - Hirohiko Kono
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai
- Japan
| | - Wataru Setaka
- Division of Applied Chemistry
- Faculty of Urban Environmental Sciences
- Tokyo Metropolitan University
- Hachioji
- Japan
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9
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Nishiyama Y, Inagaki Y, Yamaguchi K, Setaka W. 1,4-Naphthalenediyl-Bridged Molecular Gyrotops: Rotation of the Rotor and Fluorescence in Solution. J Org Chem 2015; 80:9959-66. [DOI: 10.1021/acs.joc.5b01489] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yohei Nishiyama
- Division
of Applied Chemistry, Faculty of Urban Environmental Sciences, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
| | - Yusuke Inagaki
- Division
of Applied Chemistry, Faculty of Urban Environmental Sciences, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
| | - Kentaro Yamaguchi
- Faculty
of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, Sanuki, Kagawa 769-2193, Japan
| | - Wataru Setaka
- Division
of Applied Chemistry, Faculty of Urban Environmental Sciences, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
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10
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Shionari H, Inagaki Y, Yamaguchi K, Setaka W. A pyrene-bridged macrocage showing no excimer fluorescence. Org Biomol Chem 2015; 13:10511-6. [DOI: 10.1039/c5ob01644d] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A pyrene bridged macrocage shows fluorescence from a monomeric excited state without excimer due to cage effects.
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Affiliation(s)
- Hirokuni Shionari
- Division of Applied Chemistry
- Faculty of Urban Environmental Sciences
- Tokyo Metropolitan University
- Hachioji
- Japan
| | - Yusuke Inagaki
- Division of Applied Chemistry
- Faculty of Urban Environmental Sciences
- Tokyo Metropolitan University
- Hachioji
- Japan
| | - Kentaro Yamaguchi
- Faculty of Pharmaceutical Sciences at Kagawa Campus
- Tokushima Bunri University
- Sanuki
- Japan
| | - Wataru Setaka
- Division of Applied Chemistry
- Faculty of Urban Environmental Sciences
- Tokyo Metropolitan University
- Hachioji
- Japan
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11
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Lang GM, Skaper D, Shima T, Otto M, Wang L, Gladysz JA. Syntheses of Iron(0) Complexes of Symmetrical Trialkylphosphines with Three Terminal Vinyl Groups, P((CH2)mCH=CH2)3. Aust J Chem 2015. [DOI: 10.1071/ch15178] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Reactions of (BDA)Fe(CO)3 (BDA = benzylideneacetone) and P((CH2)mCH=CH2)3 (1; m = 4, a; 5, b; 6, c; 7, d; 8, e) give the trigonal bipyramidal bis(phosphine) complexes trans-Fe(CO)3(P((CH2)mCH=CH2)3)2 (2a–e) as moderately air-sensitive yellow-orange oils in 60–75 % yields after workup. These and NO+BF4– react to give the cationic iron dicarbonyl nitrosyl complexes trans-[Fe(CO)2(NO)(P((CH2)mCH=CH2)3)2]+BF4– (3a–e; orange oils, 88–98 %). Further substitution is effected with n-Bu4N+X– (X = Cl, Br, I, or CN) to give trans-Fe(CO)(NO)(X)(P((CH2)mCH=CH2)3)2 (4a–e-X; red oils, 73–93 %). The NMR (1H, 13C, 31P) and IR properties of these adducts, which provide precursors to gyroscope-like complexes by intramolecular C=C metatheses, are analysed in detail.
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12
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Setaka W, Inoue K, Higa S, Yoshigai S, Kono H, Yamaguchi K. Synthesis of Crystalline Molecular Gyrotops and Phenylene Rotation inside the Cage. J Org Chem 2014; 79:8288-95. [DOI: 10.1021/jo501539h] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Wataru Setaka
- Division
of Applied Chemistry, Faculty of Urban Environmental Sciences, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
| | - Kazuyuki Inoue
- Faculty
of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, Sanuki, Kagawa 769-2193, Japan
| | - Sayaka Higa
- Faculty
of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, Sanuki, Kagawa 769-2193, Japan
| | - Seiki Yoshigai
- Faculty
of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, Sanuki, Kagawa 769-2193, Japan
| | - Hirohiko Kono
- Department
of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Kentaro Yamaguchi
- Faculty
of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, Sanuki, Kagawa 769-2193, Japan
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13
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Nawara-Hultzsch AJ, Stollenz M, Barbasiewicz M, Szafert S, Lis T, Hampel F, Bhuvanesh N, Gladysz JA. Gyroscope-Like Molecules Consisting of PdX2/PtX2Rotators within Three-Spoke Dibridgehead Diphosphine Stators: Syntheses, Substitution Reactions, Structures, and Dynamic Properties. Chemistry 2014; 20:4617-37. [DOI: 10.1002/chem.201304419] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Indexed: 11/11/2022]
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14
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Setaka W, Higa S, Yamaguchi K. Ring-closing metathesis for the synthesis of a molecular gyrotop. Org Biomol Chem 2014; 12:3354-7. [DOI: 10.1039/c4ob00470a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A molecular gyrotop was synthesized by ring-closing metathesis (RCM) under reflux, indicating that the cage is a thermodynamically controlled product.
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Affiliation(s)
- Wataru Setaka
- Division of Applied Chemistry
- Faculty of Urban Environmental Sciences
- Tokyo Metropolitan University
- Hachioji, Japan
| | - Sayaka Higa
- Faculty of Pharmaceutical Sciences at Kagawa Campus
- Tokushima Bunri University
- Sanuki, Japan
| | - Kentaro Yamaguchi
- Faculty of Pharmaceutical Sciences at Kagawa Campus
- Tokushima Bunri University
- Sanuki, Japan
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15
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Setaka W, Ohmizu S, Kira M. Kinetic stabilization against the oxidation reaction induced by a silaalkane cage in a thiophene-bridged molecular gyroscope. Chem Commun (Camb) 2014; 50:1098-100. [DOI: 10.1039/c3cc48205g] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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16
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Inagaki Y, Yamaguchi K, Setaka W. A crystalline molecular gyrotop with germanium junctions between a phenylene rotor and alkyl spokes. RSC Adv 2014. [DOI: 10.1039/c4ra11705k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
A molecular gyrotop with germanium junctions was synthesized, and the dynamics of the phenylene and the optical properties were discussed.
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Affiliation(s)
- Yusuke Inagaki
- Division of Applied Chemistry
- Faculty of Urban Environmental Sciences
- Tokyo Metropolitan University
- Hachioji, Japan
| | - Kentaro Yamaguchi
- Faculty of Pharmaceutical Sciences at Kagawa Campus
- Tokushima Bunri University
- Sanuki, Japan
| | - Wataru Setaka
- Division of Applied Chemistry
- Faculty of Urban Environmental Sciences
- Tokyo Metropolitan University
- Hachioji, Japan
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17
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Setaka W, Yamaguchi K. Order–Disorder Transition of Dipolar Rotor in a Crystalline Molecular Gyrotop and Its Optical Change. J Am Chem Soc 2013; 135:14560-3. [DOI: 10.1021/ja408405f] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Wataru Setaka
- Division of Applied
Chemistry, Urban Environmental Sciences, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
| | - Kentaro Yamaguchi
- Pharmaceutical Sciences at Kagawa
Campus, Tokushima Bunri University, Sanuki, Kagawa 769-2193, Japan
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18
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Setaka W, Koyama A, Yamaguchi K. Cage Size Effects on the Rotation of Molecular Gyrotops with 1,4-Naphthalenediyl Rotor in Solution. Org Lett 2013; 15:5092-5. [DOI: 10.1021/ol402464d] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Wataru Setaka
- Division of Applied Chemistry, Faculty of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan, and Faculty of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa 769-2193, Japan
| | - Akiko Koyama
- Division of Applied Chemistry, Faculty of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan, and Faculty of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa 769-2193, Japan
| | - Kentaro Yamaguchi
- Division of Applied Chemistry, Faculty of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan, and Faculty of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa 769-2193, Japan
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19
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Thanasekaran P, Huang CY, Lu KL. Synthesis, Structure, and Dynamic Behavior of Discrete Metallacyclic Rotors. CHEM LETT 2013. [DOI: 10.1246/cl.130455] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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20
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Chuang CJ, Lai CC, Liu YH, Peng SM, Chiu SH. A Two-Stage Molecular Retractable Cable Featuring Push-Button and Rotary Two-Way Switching Modes. Chemistry 2012; 18:16698-707. [DOI: 10.1002/chem.201202820] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Revised: 09/25/2012] [Indexed: 11/06/2022]
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21
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Setaka W, Yamaguchi K. A Molecular Balloon: Expansion of a Molecular Gyrotop Cage Due to Rotation of the Phenylene Rotor. J Am Chem Soc 2012; 134:12458-61. [DOI: 10.1021/ja305822e] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Wataru Setaka
- Faculty of Pharmaceutical Sciences
at Kagawa Campus, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa 769-2193, Japan
- Precursory Research for Embryonic
Science and Technology (PRESTO), Japan Science and Technology Agency (JST), 4-1-8 Honcho Kawaguchi, Saitama 332-0012,
Japan
| | - Kentaro Yamaguchi
- Faculty of Pharmaceutical Sciences
at Kagawa Campus, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa 769-2193, Japan
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22
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Thermal modulation of birefringence observed in a crystalline molecular gyrotop. Proc Natl Acad Sci U S A 2012; 109:9271-5. [PMID: 22645371 DOI: 10.1073/pnas.1114733109] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Recently, functional organic materials have been put into practical use. The application of molecular motions has the potential to create new molecule-based materials. For this reason, considerable attention has been focused on the chemistry and properties of molecular machines in which mechanical motions of parts of the molecules are observed. In particular, phenylene rotation in the crystalline state has been investigated using framed molecular gyrotops having a phenylene rotor encased in three long alkyl spokes. In this study, we show thermal modulation of birefringence in a crystal due to the states of dynamic equilibrium of a novel molecular gyrotop. A macrocage molecule having a bridged phenylene rotor was synthesized as a novel molecular gyrotop. Rapid rotation of the phenylene rotor of the molecular gyrotop was confirmed by solid-state (2)H NMR spectroscopy that showed changes in the optical properties of a single crystal, i.e., the thermal modulation of birefringence. These results are the first application of the dynamic states in a crystal causing an optical change. These phenomena were also confirmed by control experiments using a molecular gyrotop with a nonrotating xylene rotor. We anticipate our finding to be a starting point for the creation of a new field of material chemistry that will make use of the dynamic states of molecules.
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23
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Sugino H, Kawai H, Fujiwara K, Suzuki T. Molecular Gyroscope with a trans-Cyclohexane-1,4-diimine Rotor Unit: Isolation and Characterization of a Geometric Isomer as a Formal Intermediate of Hindered Rotation. CHEM LETT 2012. [DOI: 10.1246/cl.2012.79] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hiroyoshi Sugino
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Hidetoshi Kawai
- Department of Chemistry, Faculty of Science, Hokkaido University
- Department of Chemistry, Faculty of Science, Tokyo University of Science
| | - Kenshu Fujiwara
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Takanori Suzuki
- Department of Chemistry, Faculty of Science, Hokkaido University
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24
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Commins P, Nuñez JE, Garcia-Garibay MA. Synthesis of Bridged Molecular Gyroscopes with Closed Topologies: Triple One-Pot Macrocyclization. J Org Chem 2011; 76:8355-63. [DOI: 10.1021/jo201513y] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Patrick Commins
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Jose E. Nuñez
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Miguel A. Garcia-Garibay
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
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25
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Yen ML, Chen NC, Lai CC, Liu YH, Peng SM, Chiu SH. Controlling the rotation of a complexed guest within a molecular cage. Dalton Trans 2011; 40:2163-6. [DOI: 10.1039/c0dt00375a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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26
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Metta-Magana AJ, Vargas-Pineda DG, Martinez-Perez CA, Lopez-Cardoso M, Pannell KH. Endo and exo phenylene-bridged hetero (O,S) silacrown ether rotors including an unexpected structural example of the chloromethyl exchange rule for 1,4-bis(X2methylsilyl)- benzene, XCl, Me. Appl Organomet Chem 2010. [DOI: 10.1002/aoc.1721] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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27
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Setaka W, Ohmizu S, Kira M. Molecular Gyroscope Having a Halogen-substitutedp-Phenylene Rotator and Silaalkane Chain Stators. CHEM LETT 2010. [DOI: 10.1246/cl.2010.468] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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28
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29
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Akutagawa T, Sato D, Ye Q, Endo T, Noro SI, Takeda S, Nakamura T. [18]Crown-6 rotator in spin-ladder compound of m-aminoanilinium([18]crown-6)[Ni(dmit)2]−. Dalton Trans 2010; 39:8219-27. [DOI: 10.1039/c0dt00308e] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Nishimura N, Yoza K, Kobayashi K. Guest-Encapsulation Properties of a Self-Assembled Capsule by Dynamic Boronic Ester Bonds. J Am Chem Soc 2009; 132:777-90. [DOI: 10.1021/ja9084918] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Naoki Nishimura
- Department of Chemistry, Faculty of Science, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan, and Bruker AXS, 3-9-B Moriya, Kanagawa-ku, Yokohama 221-0022, Japan
| | - Kenji Yoza
- Department of Chemistry, Faculty of Science, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan, and Bruker AXS, 3-9-B Moriya, Kanagawa-ku, Yokohama 221-0022, Japan
| | - Kenji Kobayashi
- Department of Chemistry, Faculty of Science, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan, and Bruker AXS, 3-9-B Moriya, Kanagawa-ku, Yokohama 221-0022, Japan
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Molecular recognition and self-assembly special feature: Encapsulated-guest rotation in a self-assembled heterocapsule directed toward a supramolecular gyroscope. Proc Natl Acad Sci U S A 2009; 106:10444-8. [PMID: 19416810 DOI: 10.1073/pnas.0812660106] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The self-assembled heterocapsule 1.2, which is formed by the hydrogen bonds of tetra(4-pyridyl)-cavitand 1 and tetrakis(4-hydroxyphenyl)-cavitand 2, encapsulates 1 molecule of guests such as 1,4-diacetoxybenzene 3a, 1,4-diacetoxy-2,5-dimethylbenzene 3b, 1,4-diacetoxy-2,5-dialkoxybenzenes (3c, OCH(3); 3d, OC(2)H(5); 3e, OC(3)H(7); 3f, OC(4)H(9); 3g, OC(5)H(11); 3h, OC(6)H(13); 3i, OC(8)H(17)), 1,4-diacetoxy-2,5-difluorobenzene 4a, and 1,4-diacetoxy-2,3-difluorobenzene 4b. The X-ray crystallographic analysis of 3c@(1.2) showed that the acetoxy groups at the 1,4-positions of 3c are oriented toward the 2 aromatic cavity ends of 1.2 and that 3c can rotate along the long axis of 1.2. Thus, the 1.2 (stator) with the encapsulation guest (rotator) behaves as a supramolecular gyroscope. A variable temperature (VT) (1)H NMR study in CDCl(3) showed that 3a, 3b, 4a, and 4b within 1.2 rotate rapidly even at 218 K, whereas guest rotation is almost inhibited for 3h and 3i even at 323 K. In this respect, 4b with a large dipole moment is a good candidate for the rotator of 1.2. For 3c-3g, the enthalpic (DeltaH(double dagger)) and entropic (DeltaS(double dagger)) contributions to the free energy of activation (DeltaG(double dagger)) for the guest-rotational steric barriers within 1.2 were obtained from Eyring plots based on line-shape analysis of the VT (1)H NMR spectra. The value of DeltaG(double dagger) increased in the order 3c < 3d < 3e < 3f < 3g. Thus, the elongation of the alkoxy chains at the 2,5-positions of 3 puts the brakes on guest rotation within 1.2.
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Akutagawa T, Sato D, Koshinaka H, Aonuma M, Noro SI, Takeda S, Nakamura T. Solid-State Molecular Rotators of Anilinium and Adamantylammonium in [Ni(dmit)2]− Salts with Diverse Magnetic Properties. Inorg Chem 2008; 47:5951-62. [DOI: 10.1021/ic800271m] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tomoyuki Akutagawa
- Research Institute for Electronic Science, Hokkaido University, Sapporo 060-0812, Japan, Graduate School of Environmental Earth Science, Hokkaido University, Sapporo 060-0810, Japan, CREST, Japan Science and Technology Agency (JST), Kawaguchi 332-0012, Japan, and Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Daisuke Sato
- Research Institute for Electronic Science, Hokkaido University, Sapporo 060-0812, Japan, Graduate School of Environmental Earth Science, Hokkaido University, Sapporo 060-0810, Japan, CREST, Japan Science and Technology Agency (JST), Kawaguchi 332-0012, Japan, and Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Hiroyuki Koshinaka
- Research Institute for Electronic Science, Hokkaido University, Sapporo 060-0812, Japan, Graduate School of Environmental Earth Science, Hokkaido University, Sapporo 060-0810, Japan, CREST, Japan Science and Technology Agency (JST), Kawaguchi 332-0012, Japan, and Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Masaaki Aonuma
- Research Institute for Electronic Science, Hokkaido University, Sapporo 060-0812, Japan, Graduate School of Environmental Earth Science, Hokkaido University, Sapporo 060-0810, Japan, CREST, Japan Science and Technology Agency (JST), Kawaguchi 332-0012, Japan, and Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Shin-ichiro Noro
- Research Institute for Electronic Science, Hokkaido University, Sapporo 060-0812, Japan, Graduate School of Environmental Earth Science, Hokkaido University, Sapporo 060-0810, Japan, CREST, Japan Science and Technology Agency (JST), Kawaguchi 332-0012, Japan, and Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Sadamu Takeda
- Research Institute for Electronic Science, Hokkaido University, Sapporo 060-0812, Japan, Graduate School of Environmental Earth Science, Hokkaido University, Sapporo 060-0810, Japan, CREST, Japan Science and Technology Agency (JST), Kawaguchi 332-0012, Japan, and Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Takayoshi Nakamura
- Research Institute for Electronic Science, Hokkaido University, Sapporo 060-0812, Japan, Graduate School of Environmental Earth Science, Hokkaido University, Sapporo 060-0810, Japan, CREST, Japan Science and Technology Agency (JST), Kawaguchi 332-0012, Japan, and Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan
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Akutagawa T, Nakamura T. Supramolecular approach for solid state Brownian rotators. Dalton Trans 2008:6335-45. [DOI: 10.1039/b808748b] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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