1
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Ashbridge Z, Fielden SDP, Leigh DA, Pirvu L, Schaufelberger F, Zhang L. Knotting matters: orderly molecular entanglements. Chem Soc Rev 2022; 51:7779-7809. [PMID: 35979715 PMCID: PMC9486172 DOI: 10.1039/d2cs00323f] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Indexed: 11/29/2022]
Abstract
Entangling strands in a well-ordered manner can produce useful effects, from shoelaces and fishing nets to brown paper packages tied up with strings. At the nanoscale, non-crystalline polymer chains of sufficient length and flexibility randomly form tangled mixtures containing open knots of different sizes, shapes and complexity. However, discrete molecular knots of precise topology can also be obtained by controlling the number, sequence and stereochemistry of strand crossings: orderly molecular entanglements. During the last decade, substantial progress in the nascent field of molecular nanotopology has been made, with general synthetic strategies and new knotting motifs introduced, along with insights into the properties and functions of ordered tangle sequences. Conformational restrictions imparted by knotting can induce allostery, strong and selective anion binding, catalytic activity, lead to effective chiral expression across length scales, binding modes in conformations efficacious for drug delivery, and facilitate mechanical function at the molecular level. As complex molecular topologies become increasingly synthetically accessible they have the potential to play a significant role in molecular and materials design strategies. We highlight particular examples of molecular knots to illustrate why these are a few of our favourite things.
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Affiliation(s)
- Zoe Ashbridge
- Department of Chemistry, The University of Manchester, Manchester, UK
| | | | - David A Leigh
- Department of Chemistry, The University of Manchester, Manchester, UK
- School of Chemistry and Molecular Engineering, East China Normal University, 3663 N Zhongshan Road, Shanghai, China
| | - Lucian Pirvu
- Department of Chemistry, The University of Manchester, Manchester, UK
| | | | - Liang Zhang
- Department of Chemistry, The University of Manchester, Manchester, UK
- School of Chemistry and Molecular Engineering, East China Normal University, 3663 N Zhongshan Road, Shanghai, China
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2
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Xu GT, Chang XY, Low KH, Wu LL, Wan Q, Shu HX, To WP, Huang JS, Che CM. Self-Assembly of Molecular Trefoil Knots Featuring Pentadecanuclear Homoleptic Au I -, Au I /Ag I -, or Au I /Cu I -Alkynyl Coordination. Angew Chem Int Ed Engl 2022; 61:e202200748. [PMID: 35183066 DOI: 10.1002/anie.202200748] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Indexed: 12/17/2022]
Abstract
Metal-free and metal-containing molecular trefoil knots are fascinating ensembles that are usually covalently assembled, the latter requiring the rational design of di- or multidentate/multipodal ligands as connectors. In this work, we describe the self-assembly of pentadecanuclear AuI trefoil knots [Au15 (C≡CR)15 ] from monoalkynes HC≡CR (R=9,9-X2 -fluorenyl with X=nBu, n-hexyl) and [AuI (THT)Cl]. Hetero-bimetallic counterparts [Au9 M6 (C≡CR)15 ] (M=Cu/Ag) were self-assembled by reactions of [Au15 (C≡CR)15 ] with [Cu(MeCN)4 ]+ /AgNO3 and HC≡CR. The type of pentadecanuclear trefoil knots described herein is characterized by X-ray crystallography, 2D NMR and HR-ESI-MS. [Au9 Cu6 (C≡CR)15 ] is relatively stable in hexane; its excited state properties were investigated. DFT calculations revealed that non-covalent metal-metal and metal-ligand interactions, together with longer alkyl chain-strengthened inter-ligand dispersion interactions, govern the stability of the trefoil knot structures.
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Affiliation(s)
- Guang-Tao Xu
- State Key Laboratory of Synthetic Chemistry, HKU-CAS Joint Laboratory on New Materials, and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Xiao-Yong Chang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, China
| | - Kam-Hung Low
- State Key Laboratory of Synthetic Chemistry, HKU-CAS Joint Laboratory on New Materials, and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Liang-Liang Wu
- State Key Laboratory of Synthetic Chemistry, HKU-CAS Joint Laboratory on New Materials, and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Qingyun Wan
- State Key Laboratory of Synthetic Chemistry, HKU-CAS Joint Laboratory on New Materials, and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Hui-Xing Shu
- State Key Laboratory of Synthetic Chemistry, HKU-CAS Joint Laboratory on New Materials, and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Wai-Pong To
- State Key Laboratory of Synthetic Chemistry, HKU-CAS Joint Laboratory on New Materials, and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Jie-Sheng Huang
- State Key Laboratory of Synthetic Chemistry, HKU-CAS Joint Laboratory on New Materials, and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Chi-Ming Che
- State Key Laboratory of Synthetic Chemistry, HKU-CAS Joint Laboratory on New Materials, and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
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3
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Xu GT, Chang XY, Low KH, Wu LL, Wan Q, Shu HX, To WP, Huang JS, Che CM. Self‐Assembly of Molecular Trefoil Knots Featuring Pentadecanuclear Homoleptic AuI‐, AuI/AgI‐, or AuI/CuI‐Alkynyl Coordination. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Xiao-Yong Chang
- Southern University of Science and Technology Chemistry CHINA
| | | | | | - Qingyun Wan
- The University of Hong Kong Chemistry HONG KONG
| | | | - Wai-Pong To
- The University of Hong Kong Chemistry HONG KONG
| | | | - Chi-Ming Che
- The University of Hong Kong Pokfulam Road - Hong Kong HONG KONG
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Dekhtiarenko M, Pascal S, Elhabiri M, Mazan V, Canevet D, Allain M, Carré V, Aubriet F, Voitenko Z, Sallé M, Siri O, Goeb S. Reversible pH-Controlled Catenation of a Benzobisimidazole-Based Tetranuclear Rectangle. Chemistry 2021; 27:15922-15927. [PMID: 34478209 DOI: 10.1002/chem.202103039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Indexed: 11/09/2022]
Abstract
The development of methodologies to control on demand and reversibly supramolecular transformations from self-assembled metalla-structures requires the rational design of architectures able to answer to an applied stimulus. While solvent or concentration changes, light exposure or addition of a chemical have been largely explored to provide these transformations, the case of pH sensitive materials is less described. Herein, we report the first example of a pH-triggered dissociation of a coordination-driven self-assembled interlocked molecular link. It incorporates a pH sensitive benzobisimidazole-based ligand that can be selectively protonated on its bisimidazole moieties. This generates intermolecular electrostatic repulsions that reduces drastically the stability of the interlocked structure, leading to its dissociation without any sign of protonation of the pyridine moieties involved in the coordination bonds. Importantly, the dissociation process is reversible through addition of a base.
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Affiliation(s)
- Maksym Dekhtiarenko
- Univ Angers, CNRS, MOLTECH-Anjou, 2 bd Lavoisier, 49045, Angers, France.,Taras Shevchenko National University of Kyiv, 64/13 Volodymyrska st., Kyiv, 01033, Ukraine
| | - Simon Pascal
- Aix Marseille Univ, CNRS UMR 7325, Centre Interdisciplinaire de Nanoscience de Marseille (CINaM), Campus de Luminy, 13288, Marseille cedex 09, France
| | - Mourad Elhabiri
- Université de Strasbourg, Université de Haute-Alsace, CNRS, LIMA, UMR 7042, Equipe Chimie Bioorganique et Médicinale, ECPM, 25 Rue Becquerel, 67000, Strasbourg, France
| | - Valerie Mazan
- Université de Strasbourg, Université de Haute-Alsace, CNRS, LIMA, UMR 7042, Equipe Chimie Bioorganique et Médicinale, ECPM, 25 Rue Becquerel, 67000, Strasbourg, France
| | - David Canevet
- Univ Angers, CNRS, MOLTECH-Anjou, 2 bd Lavoisier, 49045, Angers, France
| | - Magali Allain
- Univ Angers, CNRS, MOLTECH-Anjou, 2 bd Lavoisier, 49045, Angers, France
| | - Vincent Carré
- LCP-A2MC, FR 3624, Université de Lorraine, ICPM, 1 Bd Arago, 57078, Metz Cedex 03, France
| | - Frédéric Aubriet
- LCP-A2MC, FR 3624, Université de Lorraine, ICPM, 1 Bd Arago, 57078, Metz Cedex 03, France
| | - Zoia Voitenko
- Taras Shevchenko National University of Kyiv, 64/13 Volodymyrska st., Kyiv, 01033, Ukraine
| | - Marc Sallé
- Univ Angers, CNRS, MOLTECH-Anjou, 2 bd Lavoisier, 49045, Angers, France
| | - Olivier Siri
- Aix Marseille Univ, CNRS UMR 7325, Centre Interdisciplinaire de Nanoscience de Marseille (CINaM), Campus de Luminy, 13288, Marseille cedex 09, France
| | - Sébastien Goeb
- Univ Angers, CNRS, MOLTECH-Anjou, 2 bd Lavoisier, 49045, Angers, France
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5
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Wang QLS, Lin YJ, Jin GX. Same knot, longer rope: altering ligand geometry provides control over nuclearity in self-assembled trefoil knots. Chem Commun (Camb) 2021; 57:9772-9775. [PMID: 34486610 DOI: 10.1039/d1cc03699h] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Taking advantage of the accumulation of a number of noncovalent intramolecular interactions, octanuclear and hexanuclear trefoil knots are self-assembled based on half-sandwich rhodium fragments. The selective synthesis of either the octanuclear or hexanuclear knot can be controlled by altering different dipyridyl arms.
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Affiliation(s)
- Qi-Li-Sha Wang
- State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, P. R. China.
| | - Yue-Jian Lin
- State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, P. R. China.
| | - Guo-Xin Jin
- State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, P. R. China.
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6
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Gao X, Cui Z, Lin YJ, Jin GX. Construction of organometallic trefoil knots and one-dimensional chains featuring half-sandwich Cp*Rh corner units and an abnormal zwitterion ligand. Org Chem Front 2021. [DOI: 10.1039/d0qo01279c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An abnormal flexible O-coordinated zwitterion ligand L shows self-adaptive conformation behaviour in chemical self-assembly. Two trefoil knots were obtained with C-shaped ligand L and two novel 1D chains were obtained with Z-shaped ligand L.
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Affiliation(s)
- Xiang Gao
- Department of Chemistry
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- State Key Laboratory of Molecular Engineering of Polymers
- Fudan University
- Shanghai 200438
| | - Zheng Cui
- Department of Chemistry
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- State Key Laboratory of Molecular Engineering of Polymers
- Fudan University
- Shanghai 200438
| | - Yue-Jian Lin
- Department of Chemistry
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- State Key Laboratory of Molecular Engineering of Polymers
- Fudan University
- Shanghai 200438
| | - Guo-Xin Jin
- Department of Chemistry
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- State Key Laboratory of Molecular Engineering of Polymers
- Fudan University
- Shanghai 200438
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7
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August DP, Borsley S, Cockroft SL, Della Sala F, Leigh DA, Webb SJ. Transmembrane Ion Channels Formed by a Star of David [2]Catenane and a Molecular Pentafoil Knot. J Am Chem Soc 2020; 142:18859-18865. [PMID: 33084320 PMCID: PMC7745878 DOI: 10.1021/jacs.0c07977] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A (FeII)6-coordinated triply interlocked ("Star of David") [2]catenane (612 link) and a (FeII)5-coordinated pentafoil (51) knot are found to selectively transport anions across phospholipid bilayers. Allostery, topology, and building block stoichiometry all play important roles in the efficacy of the ionophoric activity. Multiple FeII cation coordination by the interlocked molecules is crucial: the demetalated catenane exhibits no anion binding in solution nor any transmembrane ion transport properties. However, the topologically trivial, Lehn-type cyclic hexameric FeII helicates-which have similar anion binding affinities to the metalated Star of David catenane in solution-also display no ion transport properties. The unanticipated difference in behavior between the open- and closed-loop structures may arise from conformational restrictions in the linking groups that likely enhances the rigidity of the channel-forming topologically complex molecules. The (FeII)6-coordinated Star of David catenane, derived from a hexameric cyclic helicate, is 2 orders of magnitude more potent in terms of ion transport than the (FeII)5-coordinated pentafoil knot, derived from a cyclic pentamer of the same building block. The reduced efficacy is reminiscent of multisubunit protein ion channels assembled with incorrect monomer stoichiometries.
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Affiliation(s)
- David P August
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Stefan Borsley
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Scott L Cockroft
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, United Kingdom
| | - Flavio Della Sala
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom.,Manchester Institute of Biotechnology, University of Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - David A Leigh
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Simon J Webb
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom.,Manchester Institute of Biotechnology, University of Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom
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8
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Feng T, Li X, An Y, Bai S, Sun L, Li Y, Wang Y, Han Y. Backbone‐Directed Self‐Assembly of Interlocked Molecular Cyclic Metalla[3]Catenanes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004112] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Ting Feng
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Xin Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Yuan‐Yuan An
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Sha Bai
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Li‐Ying Sun
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Yang Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Yao‐Yu Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Ying‐Feng Han
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
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9
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Feng T, Li X, An Y, Bai S, Sun L, Li Y, Wang Y, Han Y. Backbone‐Directed Self‐Assembly of Interlocked Molecular Cyclic Metalla[3]Catenanes. Angew Chem Int Ed Engl 2020; 59:13516-13520. [DOI: 10.1002/anie.202004112] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/20/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Ting Feng
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Xin Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Yuan‐Yuan An
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Sha Bai
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Li‐Ying Sun
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Yang Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Yao‐Yu Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Ying‐Feng Han
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
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Singh J, Kim DH, Kim EH, Kim H, Hadiputra R, Jung J, Chi KW. The First Quantitative Synthesis of a Closed Three-Link Chain (613) Using Coordination and Noncovalent Interactions-Driven Self-Assembly. J Am Chem Soc 2020; 142:9327-9336. [DOI: 10.1021/jacs.0c01406] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jatinder Singh
- Department of Chemistry, University of Ulsan, Ulsan 44776, Republic of Korea
- Energy Materials Laboratory, Korea Institute of Energy Research, Daejeon 34129, Republic of Korea
| | - Dong Hwan Kim
- Department of Chemistry, University of Ulsan, Ulsan 44776, Republic of Korea
| | - Eun-Hee Kim
- Center for Research Equipments, Korea Basic Science Institute, Ochang, Chungbuk 28119, Republic of Korea
| | - Hyunuk Kim
- Energy Materials Laboratory, Korea Institute of Energy Research, Daejeon 34129, Republic of Korea
| | - Rizky Hadiputra
- Department of Chemistry, University of Ulsan, Ulsan 44776, Republic of Korea
| | - Jaehoon Jung
- Department of Chemistry, University of Ulsan, Ulsan 44776, Republic of Korea
| | - Ki-Whan Chi
- Department of Chemistry, University of Ulsan, Ulsan 44776, Republic of Korea
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11
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Gao X, Guo BB, Dang LL, Jin GX. A template-free strategy for the synthesis of highly stable trefoil knots. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121172] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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12
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Shan W, Gao X, Lin Y, Jin G. Template‐Free Self‐Assembly of Molecular Trefoil Knots and Double Trefoil Knots Featuring Cp*Rh Building Blocks. Chemistry 2020; 26:5093-5099. [DOI: 10.1002/chem.202000525] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 02/15/2020] [Indexed: 11/10/2022]
Affiliation(s)
- Wei‐Long Shan
- State Key Laboratory of Molecular Engineering of PolymersShanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsDepartment of ChemistryFudan University 220 Handan Road Shanghai 200433 P. R. China
- School of Chemistry and Chemical EngineeringAnhui University of Technology Maanshan 243002 P. R. China
| | - Xiang Gao
- State Key Laboratory of Molecular Engineering of PolymersShanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsDepartment of ChemistryFudan University 220 Handan Road Shanghai 200433 P. R. China
| | - Yue‐Jian Lin
- State Key Laboratory of Molecular Engineering of PolymersShanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsDepartment of ChemistryFudan University 220 Handan Road Shanghai 200433 P. R. China
| | - Guo‐Xin Jin
- State Key Laboratory of Molecular Engineering of PolymersShanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsDepartment of ChemistryFudan University 220 Handan Road Shanghai 200433 P. R. China
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13
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Vinogradov MM, Loginov DA. Rhoda- and iridacarborane halide complexes: Synthesis, structure and application in homogeneous catalysis. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121135] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Dang LL, Gao X, Lin YJ, Jin GX. s-Block metal ions induce structural transformations between figure-eight and double trefoil knots. Chem Sci 2020. [DOI: 10.1039/c9sc05796j] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The presence or absence of s-block metal ions induces reversible structural transformation of molecular knots.
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Affiliation(s)
- Li-Long Dang
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Chemistry
- Fudan University
- Shanghai 200438
| | - Xiang Gao
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Chemistry
- Fudan University
- Shanghai 200438
| | - Yue-Jian Lin
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Chemistry
- Fudan University
- Shanghai 200438
| | - Guo-Xin Jin
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Chemistry
- Fudan University
- Shanghai 200438
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15
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Gupta G, Lee SW, Ryu JY, Lee J, Lee CY. Unexpected Formation of (1 + 1) Ruthenium Macrocycle from Flexible Ru(II) Clip. B KOREAN CHEM SOC 2019. [DOI: 10.1002/bkcs.11933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Gajendra Gupta
- Department of Energy and Chemical Engineering/Innovation Center for Chemical EngineeringIncheon National University Incheon 22012 Republic of Korea
| | - Seon Woong Lee
- Department of Energy and Chemical Engineering/Innovation Center for Chemical EngineeringIncheon National University Incheon 22012 Republic of Korea
| | - Ji Yeon Ryu
- Department of ChemistryChonnam National University Gwangju 61186 Republic of Korea
| | - Junseong Lee
- Department of ChemistryChonnam National University Gwangju 61186 Republic of Korea
| | - Chang Yeon Lee
- Department of Energy and Chemical Engineering/Innovation Center for Chemical EngineeringIncheon National University Incheon 22012 Republic of Korea
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