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Saura-Sanmartin A. Synthesis of 'Impossible' Rotaxanes. Chemistry 2024; 30:e202304025. [PMID: 38168751 DOI: 10.1002/chem.202304025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 12/31/2023] [Accepted: 01/03/2024] [Indexed: 01/05/2024]
Abstract
'Impossible' rotaxanes, which are constituted by interlocked components without obvious binding motifs, have attracted the interest of the mechanically interlocked molecules (MIMs) community. Within the synthetic efforts reported in the last decades towards the preparation of MIMs, some innovative protocols for accessing 'impossible' rotaxanes have been developed. This short review highlights different selected synthetic examples of 'impossible' rotaxanes, as well as suggests some future directions of this research area.
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Affiliation(s)
- Adrian Saura-Sanmartin
- Departamento de Química Orgánica, Facultad de Química, Universidad de Murcia, Campus de Espinardo, 30100, Murcia, Spain
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2
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Kotera N, Montellano P, Catalán AC, Carrasco-Ruiz A, Cervantes R, Tiburcio J. Correlated translational motions in pseudo-rotaxane complexes controlled by a single chemical stimulus. Org Biomol Chem 2024; 22:1135-1140. [PMID: 38047705 DOI: 10.1039/d3ob01741a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
Coordinated motions are essential in the operation of molecular machines. This feature can be achieved by landscaping the energy surface along the movement coordinates. Herein, we present an approach of using a single stimulus to modify the free energy curve describing the threading and shuttling of a ring along a linear molecule. This approach has been realized by locating two identical ring-binding sites near the axle termini.
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Affiliation(s)
- Naoko Kotera
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Avenida IPN 2508, Mexico City, 07360, Mexico.
| | - Pilar Montellano
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Avenida IPN 2508, Mexico City, 07360, Mexico.
| | - Aldo C Catalán
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Avenida IPN 2508, Mexico City, 07360, Mexico.
| | - Anayeli Carrasco-Ruiz
- Facultad de Ciencias Básicas, Ingeniería y Tecnología, Universidad Autónoma de Tlaxcala, Apizaco 90341, Tlaxcala, Mexico
| | - Ruy Cervantes
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Avenida IPN 2508, Mexico City, 07360, Mexico.
| | - Jorge Tiburcio
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Avenida IPN 2508, Mexico City, 07360, Mexico.
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3
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Tsai CY, Cheng HT, Chiu SH. Improbable Rotaxanes Constructed From Surrogate Malonate Rotaxanes as Encircled Methylene Synthons. Angew Chem Int Ed Engl 2023; 62:e202308974. [PMID: 37712453 DOI: 10.1002/anie.202308974] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 09/12/2023] [Accepted: 09/14/2023] [Indexed: 09/16/2023]
Abstract
We have developed a new approach for the synthesis of "improbable" rotaxanes by using malonate-centered rotaxanes as interlocked surrogate precursors. Here, the desired dumbbell-shaped structure can be assembled from two different, completely separate, portions, with the only residual structure introduced from the malonate surrogate being a methylene group. We have synthesized improbable [2]- and [3]rotaxanes with all-hydrocarbon dumbbell-shaped components to demonstrate the potential structural flexibility and scope of the guest species that can be interlocked when using this approach.
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Affiliation(s)
- Chi-You Tsai
- Department of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, Taiwan
| | - Hung-Te Cheng
- Department of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, Taiwan
| | - Sheng-Hsien Chiu
- Department of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, Taiwan
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4
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Zhang MX, Cheng HT, Chiu SH. Dual-Way-Switchable Ester Rotaxanes Constructed Using the Recognition of Malonate Diesters. Org Lett 2023. [PMID: 37367218 DOI: 10.1021/acs.orglett.3c01666] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Malonate diesters can thread into the cavity of a di(ethylene glycol)-containing macrocycle under the templating effect of a Na+ ion; the corresponding rotaxanes can be synthesized with good efficiency by applying several stoppering reactions. A molecular switch, in which the interlocked macrocycle was moved between two rarely used stations (i.e., malonate and TAA) through the addition of acid/base and the presence/absence of Na+ ions, was constructed using this new recognition system.
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Affiliation(s)
- Min-Xuan Zhang
- Department of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 106, Taiwan
| | - Hung-Te Cheng
- Department of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 106, Taiwan
| | - Sheng-Hsien Chiu
- Department of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 106, Taiwan
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5
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Khang TM, Nhien PQ, Cuc TTK, Wu CH, Hue BTB, Wu JI, Li YK, Lin HC. Dual and sequential locked/unlocked photo-switching effects on FRET processes by tightened/loosened nano-loops of diarylethene-based [1]rotaxanes. Chem Commun (Camb) 2023; 59:466-469. [PMID: 36519452 DOI: 10.1039/d2cc06285b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The self-trapping nano-loop structures of [1]rotaxanes exhibited multiple Förster resonance energy transfer (FRET) patterns via dual and sequential locking/unlocking of pH-gated and UV exposure processes. As a tightened and constrained nano-loop in the acidic condition, dithienylethene (DTE) unit was locked in the highly bending open form to forbid ring closure upon UV irradiation.
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Affiliation(s)
- Trang Manh Khang
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan.
| | - Pham Quoc Nhien
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan. .,Department of Chemistry, College of Natural Sciences, Can Tho University, Can Tho City, Vietnam
| | - Tu Thi Kim Cuc
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan.
| | - Chia-Hua Wu
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan.
| | - Bui Thi Buu Hue
- Department of Chemistry, College of Natural Sciences, Can Tho University, Can Tho City, Vietnam
| | - Judy I Wu
- Department of Chemistry, University of Houston, Houston, Texas 77204, USA
| | - Yaw-Kuen Li
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan.,Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
| | - Hong-Cheu Lin
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan. .,Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
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6
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Koehler V, Gauthier M, Yao C, Fournel-Marotte K, Waelès P, Kauffmann B, Huc I, Coutrot F, Ferrand Y. [3]Foldarotaxane-mediated synthesis of an improbable [2]rotaxane. Chem Commun (Camb) 2022; 58:8618-8621. [PMID: 35786713 DOI: 10.1039/d2cc03066g] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The wrapping of an aromatic oligoamide helix around an active ester-containing [2]rotaxane enforced the sliding and the sequestration of the surrounding macrocycle around a part of the axle for which it has no formal affinity. The foldamer-mediated compartmentalization of the [2]rotaxane shuttle was subsequently used to prepare an improbable rotaxane.
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Affiliation(s)
- Victor Koehler
- Institut de Chimie et Biologie des Membranes et Nano-objets CBMN (UMR5248), Université de Bordeaux, CNRS, IPB, 2 rue Robert Escarpit, 33600, Pessac, France.
| | - Maxime Gauthier
- Supramolecular Machines and Archtectures Team, IBMM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
| | - Chenhao Yao
- Institut de Chimie et Biologie des Membranes et Nano-objets CBMN (UMR5248), Université de Bordeaux, CNRS, IPB, 2 rue Robert Escarpit, 33600, Pessac, France.
| | - Karine Fournel-Marotte
- Supramolecular Machines and Archtectures Team, IBMM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
| | - Philip Waelès
- Supramolecular Machines and Archtectures Team, IBMM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
| | - Brice Kauffmann
- Université de Bordeaux, CNRS, INSERM, UMS3033, IECB, 2 rue Robert Escarpit, 33600, Pessac, France
| | - Ivan Huc
- Department of Pharmacy, Ludwig-Maximilians-Universität, Butenandtstr. 5-13, 81377, München, Germany
| | - Frédéric Coutrot
- Supramolecular Machines and Archtectures Team, IBMM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
| | - Yann Ferrand
- Institut de Chimie et Biologie des Membranes et Nano-objets CBMN (UMR5248), Université de Bordeaux, CNRS, IPB, 2 rue Robert Escarpit, 33600, Pessac, France.
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7
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Gauthier M, Coutrot F. Discrepancy Regarding the Dethreading of a Dibenzo‐24‐crown‐8 Macrocycle through a Perfluorobutyl End in [2]Pseudorotaxanes. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101201] [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)
- Maxime Gauthier
- Supramolecular Machines and Architectures Team IBMM Univ Montpellier CNRS ENSCM Montpellier France
| | - Frédéric Coutrot
- Supramolecular Machines and Architectures Team IBMM Univ Montpellier CNRS ENSCM Montpellier France
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8
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Coutrot F, Waelès P, Gauthier M. Study of [2] and [3]Rotaxanes Obtained by Post‐Synthetic Aminolysis of a Kinetically Stable Though Activated Carbonate‐Containing Pseudorotaxane. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Frédéric Coutrot
- Institut des Biomolecules Max Mousseron Département de Chimie Montpellier FRANCE
| | - Philip Waelès
- IBMM: Institut des Biomolecules Max Mousseron chimie FRANCE
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9
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A chiral interlocking auxiliary strategy for the synthesis of mechanically planar chiral rotaxanes. Nat Chem 2021; 14:179-187. [PMID: 34845345 PMCID: PMC7612332 DOI: 10.1038/s41557-021-00825-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 09/23/2021] [Indexed: 12/03/2022]
Abstract
Rotaxanes can display molecular chirality solely due to the mechanical bond between the axle and encircling macrocycle without the presence of covalent stereogenic units. However, the synthesis of such molecules remains challenging. We have discovered a combination of reaction partners that function as a chiral interlocking auxiliary to both orientate a macrocycle and, effectively, load it onto a new axle. Here we use these substrates to demonstrate the potential of a chiral interlocking auxiliary strategy for the synthesis of mechanically planar chiral rotaxanes by producing a range of examples in high enantiopurity (93–99% e.e.), including so-called ‘impossible’ rotaxanes whose axles lack any functional groups that would allow their direct synthesis by other means. Intriguingly, by varying the order of bond-forming steps, we can effectively choose which end of an axle the macrocycle is loaded onto, enabling the synthesis of both hands of a single target using the same reactions and building blocks.
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10
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Gauthier M, Waelès P, Coutrot F. Post-Synthetic Macrocyclization of Rotaxane Building Blocks. Chempluschem 2021; 87:e202100458. [PMID: 34811956 DOI: 10.1002/cplu.202100458] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/11/2021] [Indexed: 11/06/2022]
Abstract
Although not often encountered, cyclic interlocked molecules are appealing molecular targets because of their restrained tridimensional structure which is related to both the cyclic and interlocked shapes. Interlocked molecules such as rotaxane building blocks may be good candidates for post-synthetic intramolecular cyclization if the preservation of the mechanical bond ensures the interlocked architecture throughout the reaction. This is obviously the case if the modification does not involve the cleavage of either the macrocycle's main chain or the encircled part of the axle. However, among the post-synthetic reactions, the chemical linkage between two reactive sites belonging to embedded elements of rotaxanes still consists of an underexploited route to interlocked cyclic molecules. This Review lists the rare examples of macrocyclization through chemical connection between reactive sites belonging to a surrounding macrocycle and/or an encircled axle of interlocked rotaxanes.
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Affiliation(s)
- Maxime Gauthier
- Supramolecular Machines and Architectures Team, IBMM, Univ Montpellier, CNRS, ENSCM, Montpellier, France
| | - Philip Waelès
- Supramolecular Machines and Architectures Team, IBMM, Univ Montpellier, CNRS, ENSCM, Montpellier, France
| | - Frédéric Coutrot
- Supramolecular Machines and Architectures Team, IBMM, Univ Montpellier, CNRS, ENSCM, Montpellier, France
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11
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Stereodynamics of E/ Z isomerization in rotaxanes through mechanical shuttling and covalent bond rotation. Chem 2021; 7:2137-2150. [PMID: 34435161 PMCID: PMC8367298 DOI: 10.1016/j.chempr.2021.04.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 01/18/2021] [Accepted: 04/19/2021] [Indexed: 11/20/2022]
Abstract
The mechanical bond has opened a new world for structural and dynamic stereochemistry, which is still largely underexplored and whose significance for various applications is becoming increasingly evident. We demonstrate that designed rearrangements involving both covalent and mechanical bonds can be integrated in [2]rotaxanes, leading to interesting consequences in terms of E/Z isomerization mechanisms. Two entirely distinct and concomitant stereomutations, pertaining to the same stereogenic element but involving different kinds of linkages within the molecule, are observed and are thoroughly characterized. The rate of the two processes is affected in opposite ways upon changing solvent polarity; such a phenomenon can be used to selectively modify the rate of each motion and adjust the relative contribution of the two mechanisms to the isomerization. Although the movements are not synchronized, an analysis of the intriguing fundamental implications for transition state theory, reaction pathway bifurcation, and microscopic reversibility was triggered by our experimental observations. Rotaxanes that display E/Z stereoisomerism depending on the ring position Co-existence of two different stereomutations that yield the same product Mutual influence and opposite solvent dependence of the two dynamic processes Fundamental implications for microscopic reversibility and chemical equilibrium
The concurrence and interplay of different movements of molecular components within the same structure play a key role in providing function to naturally occurring molecular machines. Despite the progress made on artificial counterparts, the construction of molecular systems, where two (or more) motions are integrated together to produce an outcome, is still in its infancy. Molecules called rotaxanes, obtained by interlocking a ring with a dumbbell-shaped axle, are an appealing yet underexplored platform for this purpose. Here, we describe rotaxanes where two coexisting and radically different processes—rotation about a covalent bond and translation of the ring along the axle—lead to the same change in the overall molecular shape. These results are significant not only to improve our fundamental understanding of the way molecular components move but also to develop sophisticated artificial nanomachines capable of transforming or transmitting motion.
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12
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Waelès P, Gauthier M, Coutrot F. Challenges and Opportunities in the Post-Synthetic Modification of Interlocked Molecules. Angew Chem Int Ed Engl 2021; 60:16778-16799. [PMID: 32894812 DOI: 10.1002/anie.202007496] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 08/24/2020] [Indexed: 12/12/2022]
Abstract
Several strategies have been successfully utilised to obtain a wide range of interlocked molecules. However, some interlocked compounds are still not obtained directly and/or efficiently from non-interlocked components because the requisites for self-assembly cannot always be enforced. To circumvent such a synthetic problem, a strategy that consists of synthesizing an isolable and storable interlocked building block in a step that precedes its modification is an appealing chemical route to more sophisticated interlocked molecules. Synthetic opportunities and challenges are closely linked to the fact that the mechanical bond might greatly affect the reactivity of a functionality of the encircled axle, but that the interlocked architecture needs to be preserved during the synthesis. Hence, the mechanical bond plays a fundamental role in the strategy employed. This Review focuses on the challenging post-synthetic modifications of interlocked molecules, sometimes through cleavage of the axle's main chain, but always with conservation of the mechanical bond.
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Affiliation(s)
- Philip Waelès
- Supramolecular Machines and ARchitectures Team, Institut des Biomolécules Max Mousseron (IBMM), UMR 5247 CNRS, Université de Montpellier, ENSCM, case courrier 1706, Bâtiment Chimie (17), 3ème étage, Faculté des Sciences, Place Eugène Bataillon, 34095, Montpellier cedex 5, France
| | - Maxime Gauthier
- Supramolecular Machines and ARchitectures Team, Institut des Biomolécules Max Mousseron (IBMM), UMR 5247 CNRS, Université de Montpellier, ENSCM, case courrier 1706, Bâtiment Chimie (17), 3ème étage, Faculté des Sciences, Place Eugène Bataillon, 34095, Montpellier cedex 5, France
| | - Frédéric Coutrot
- Supramolecular Machines and ARchitectures Team, Institut des Biomolécules Max Mousseron (IBMM), UMR 5247 CNRS, Université de Montpellier, ENSCM, case courrier 1706, Bâtiment Chimie (17), 3ème étage, Faculté des Sciences, Place Eugène Bataillon, 34095, Montpellier cedex 5, France
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Waelès P, Gauthier M, Coutrot F. Challenges and Opportunities in the Post‐Synthetic Modification of Interlocked Molecules. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202007496] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Philip Waelès
- Supramolecular Machines and ARchitectures Team Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS Université de Montpellier ENSCM case courrier 1706, Bâtiment Chimie (17), 3ème étage, Faculté des Sciences, Place Eugène Bataillon 34095 Montpellier cedex 5 France
| | - Maxime Gauthier
- Supramolecular Machines and ARchitectures Team Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS Université de Montpellier ENSCM case courrier 1706, Bâtiment Chimie (17), 3ème étage, Faculté des Sciences, Place Eugène Bataillon 34095 Montpellier cedex 5 France
| | - Frédéric Coutrot
- Supramolecular Machines and ARchitectures Team Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS Université de Montpellier ENSCM case courrier 1706, Bâtiment Chimie (17), 3ème étage, Faculté des Sciences, Place Eugène Bataillon 34095 Montpellier cedex 5 France
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14
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Echavarren J, Gall MAY, Haertsch A, Leigh DA, Spence JTJ, Tetlow DJ, Tian C. Sequence-Selective Decapeptide Synthesis by the Parallel Operation of Two Artificial Molecular Machines. J Am Chem Soc 2021; 143:5158-5165. [PMID: 33764775 DOI: 10.1021/jacs.1c01234] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We report on the preparation of a decapeptide through the parallel operation of two rotaxane-based molecular machines. The synthesis proceeds in four stages: (1) simultaneous operation of two molecular peptide synthesizers in the same reaction vessel; (2) selective residue activation of short-oligomer intermediates; (3) ligation; (4) product release. Key features of the machine design include the following: (a) selective transformation of a thioproline building block to a cysteine (once it has been incorporated into a hexapeptide intermediate by one molecular machine); (b) a macrocycle-peptide hydrazine linkage (as part of the second machine) to differentiate the intermediates and enable their directional ligation; and (c) incorporation of a Glu residue in the assembly module of one machine to enable release of the final product while simultaneously removing part of the assembly machinery from the product. The two molecular machines participate in the synthesis of a product that is beyond the capability of individual small-molecule machines, in a manner reminiscent of the ligation and post-translational modification of proteins in biology.
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Affiliation(s)
- Javier Echavarren
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Malcolm A Y Gall
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Adrian Haertsch
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - David A Leigh
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Justin T J Spence
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Daniel J Tetlow
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Chong Tian
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
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15
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Pairault N, Bessaguet A, Barat R, Frédéric L, Pieters G, Crassous J, Opalinski I, Papot S. Diastereoselective synthesis of [1]rotaxanes via an active metal template strategy. Chem Sci 2020; 12:2521-2526. [PMID: 34164020 PMCID: PMC8179266 DOI: 10.1039/d0sc05369d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Despite the impressive number of interlocked molecules described in the literature over the past 30 years, only a few stereoselective syntheses of mechanically chiral rotaxanes have been reported so far. In this study, we present the first diastereoselective synthesis of mechanically planar chiral [1]rotaxanes, that has been achieved using the active template Cu-mediated alkyne–azide cycloaddition reaction. This synthetic method has been applied to the preparation of a [1]rotaxane bearing a labile stopper that can then be substituted without disruption of the mechanical bond. This approach paves the way for the synthesis of a wide variety of mechanically planar chiral [1]rotaxanes, hence allowing the study of the properties and potential applications of this class of interlocked molecular architectures. The first diastereoselective synthesis of mechanically planar chiral [1]rotaxanes has been achieved using the active template Cu-mediated alkyne–azide cycloaddition reaction.![]()
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Affiliation(s)
- Noël Pairault
- Université de Poitiers, UMR CNRS 7285, Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Groupe "Systèmes Moléculaires Programmés" Rue Michel-Brunet, TSA 51106 86073 Poitiers Cedex 9 France
| | - Adrien Bessaguet
- Université de Poitiers, UMR CNRS 7285, Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Groupe "Systèmes Moléculaires Programmés" Rue Michel-Brunet, TSA 51106 86073 Poitiers Cedex 9 France
| | - Romain Barat
- Université de Poitiers, UMR CNRS 7285, Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Groupe "Systèmes Moléculaires Programmés" Rue Michel-Brunet, TSA 51106 86073 Poitiers Cedex 9 France
| | - Lucas Frédéric
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM F-91191 Gif-sur-Yvette France
| | - Grégory Pieters
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM F-91191 Gif-sur-Yvette France
| | - Jeanne Crassous
- Université de Rennes, Institut des Sciences Chimiques de Rennes, UMR CNRS 6226 Campus de Beaulieu Rennes 35042 France
| | - Isabelle Opalinski
- Université de Poitiers, UMR CNRS 7285, Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Groupe "Systèmes Moléculaires Programmés" Rue Michel-Brunet, TSA 51106 86073 Poitiers Cedex 9 France
| | - Sébastien Papot
- Université de Poitiers, UMR CNRS 7285, Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Groupe "Systèmes Moléculaires Programmés" Rue Michel-Brunet, TSA 51106 86073 Poitiers Cedex 9 France
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16
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A Track-Based Molecular Synthesizer that Builds a Single-Sequence Oligomer through Iterative Carbon-Carbon Bond Formation. Chem 2020. [DOI: 10.1016/j.chempr.2020.09.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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17
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Groppi J, Casimiro L, Canton M, Corra S, Jafari‐Nasab M, Tabacchi G, Cavallo L, Baroncini M, Silvi S, Fois E, Credi A. Precision Molecular Threading/Dethreading. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003064] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jessica Groppi
- CLAN-Center for Light Activated Nanostructures Istituto ISOF-CNR via Gobetti 101 40129 Bologna Italy
| | - Lorenzo Casimiro
- CLAN-Center for Light Activated Nanostructures Istituto ISOF-CNR via Gobetti 101 40129 Bologna Italy
- Dipartimento di Chimica “G. Ciamician” Università di Bologna via Selmi 2 40126 Bologna Italy
| | - Martina Canton
- CLAN-Center for Light Activated Nanostructures Istituto ISOF-CNR via Gobetti 101 40129 Bologna Italy
- Dipartimento di Chimica Industriale “Toso Montanari” Università di Bologna viale del Risorgimento 4 40136 Bologna Italy
| | - Stefano Corra
- CLAN-Center for Light Activated Nanostructures Istituto ISOF-CNR via Gobetti 101 40129 Bologna Italy
- Dipartimento di Scienze e Tecnologie Agro-alimentari Università di Bologna viale Fanin 44 40127 Bologna Italy
| | - Mina Jafari‐Nasab
- Dipartimento di Chimica “G. Ciamician” Università di Bologna via Selmi 2 40126 Bologna Italy
| | - Gloria Tabacchi
- Dipartimento di Scienza ed Alta Tecnologia and INSTM Università dell'Insubria via Valleggio 11 22100 Como Italy
| | - Luigi Cavallo
- KAUST Catalysis Center King Abdullah University of Science and Technology Thuwal 23955-6900 Saudi Arabia
| | - Massimo Baroncini
- CLAN-Center for Light Activated Nanostructures Istituto ISOF-CNR via Gobetti 101 40129 Bologna Italy
- Dipartimento di Scienze e Tecnologie Agro-alimentari Università di Bologna viale Fanin 44 40127 Bologna Italy
| | - Serena Silvi
- CLAN-Center for Light Activated Nanostructures Istituto ISOF-CNR via Gobetti 101 40129 Bologna Italy
- Dipartimento di Chimica “G. Ciamician” Università di Bologna via Selmi 2 40126 Bologna Italy
| | - Ettore Fois
- Dipartimento di Scienza ed Alta Tecnologia and INSTM Università dell'Insubria via Valleggio 11 22100 Como Italy
| | - Alberto Credi
- CLAN-Center for Light Activated Nanostructures Istituto ISOF-CNR via Gobetti 101 40129 Bologna Italy
- Dipartimento di Chimica Industriale “Toso Montanari” Università di Bologna viale del Risorgimento 4 40136 Bologna Italy
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18
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Groppi J, Casimiro L, Canton M, Corra S, Jafari‐Nasab M, Tabacchi G, Cavallo L, Baroncini M, Silvi S, Fois E, Credi A. Precision Molecular Threading/Dethreading. Angew Chem Int Ed Engl 2020; 59:14825-14834. [PMID: 32396687 PMCID: PMC7496742 DOI: 10.1002/anie.202003064] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Indexed: 12/12/2022]
Abstract
The general principles guiding the design of molecular machines based on interlocked structures are well known. Nonetheless, the identification of suitable molecular components for a precise tuning of the energetic parameters that determine the mechanical link is still challenging. Indeed, what are the reasons of the "all-or-nothing" effect, which turns a molecular "speed-bump" into a stopper in pseudorotaxane-based architectures? Here we investigate the threading and dethreading processes for a representative class of molecular components, based on symmetric dibenzylammonium axles and dibenzo[24]crown-8 ether, with a joint experimental-computational strategy. From the analysis of quantitative data and an atomistic insight, we derive simple rules correlating the kinetic behaviour with the substitution pattern, and provide rational guidelines for the design of modules to be integrated in molecular switches and motors with sophisticated dynamic features.
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Affiliation(s)
- Jessica Groppi
- CLAN-Center for Light Activated NanostructuresIstituto ISOF-CNRvia Gobetti 10140129BolognaItaly
| | - Lorenzo Casimiro
- CLAN-Center for Light Activated NanostructuresIstituto ISOF-CNRvia Gobetti 10140129BolognaItaly
- Dipartimento di Chimica “G. Ciamician”Università di Bolognavia Selmi 240126BolognaItaly
| | - Martina Canton
- CLAN-Center for Light Activated NanostructuresIstituto ISOF-CNRvia Gobetti 10140129BolognaItaly
- Dipartimento di Chimica Industriale “Toso Montanari”Università di Bolognaviale del Risorgimento 440136BolognaItaly
| | - Stefano Corra
- CLAN-Center for Light Activated NanostructuresIstituto ISOF-CNRvia Gobetti 10140129BolognaItaly
- Dipartimento di Scienze e Tecnologie Agro-alimentariUniversità di Bolognaviale Fanin 4440127BolognaItaly
| | - Mina Jafari‐Nasab
- Dipartimento di Chimica “G. Ciamician”Università di Bolognavia Selmi 240126BolognaItaly
| | - Gloria Tabacchi
- Dipartimento di Scienza ed Alta Tecnologia and INSTMUniversità dell'Insubriavia Valleggio 1122100ComoItaly
| | - Luigi Cavallo
- KAUST Catalysis CenterKing Abdullah University of Science and TechnologyThuwal23955-6900Saudi Arabia
| | - Massimo Baroncini
- CLAN-Center for Light Activated NanostructuresIstituto ISOF-CNRvia Gobetti 10140129BolognaItaly
- Dipartimento di Scienze e Tecnologie Agro-alimentariUniversità di Bolognaviale Fanin 4440127BolognaItaly
| | - Serena Silvi
- CLAN-Center for Light Activated NanostructuresIstituto ISOF-CNRvia Gobetti 10140129BolognaItaly
- Dipartimento di Chimica “G. Ciamician”Università di Bolognavia Selmi 240126BolognaItaly
| | - Ettore Fois
- Dipartimento di Scienza ed Alta Tecnologia and INSTMUniversità dell'Insubriavia Valleggio 1122100ComoItaly
| | - Alberto Credi
- CLAN-Center for Light Activated NanostructuresIstituto ISOF-CNRvia Gobetti 10140129BolognaItaly
- Dipartimento di Chimica Industriale “Toso Montanari”Università di Bolognaviale del Risorgimento 440136BolognaItaly
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19
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Colasson B, Credi A, Ventura B. Photoinduced Electron Transfer Involving a Naphthalimide Chromophore in Switchable and Flexible [2]Rotaxanes. Chemistry 2019; 26:534-542. [PMID: 31638287 DOI: 10.1002/chem.201904155] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Indexed: 11/10/2022]
Abstract
The interlocking of ring and axle molecular components in rotaxanes provides a way to combine chromophoric, electron-donor and electron-acceptor moieties in the same molecular entity, in order to reproduce the features of photosynthetic reaction centers. To this aim, the photoinduced electron transfer processes involving a 1,8-naphthalimide chromophore, embedded in several rotaxane-based dyads, were investigated by steady-state and time-resolved absorption and luminescence spectroscopic experiments in the 300 fs-10 ns time window. Different rotaxanes built around the dialkylammonium/ dibenzo[24]crown-8 ether supramolecular motif were designed and synthesized to decipher the relevance of key structural factors, such as the chemical deactivation of the ammonium-crown ether recognition, the presence of a secondary site for the ring along the axle, and the covalent functionalization of the macrocycle with a phenothiazine electron donor. Indeed, the conformational freedom of these compounds gives rise to a rich dynamic behavior induced by light and may provide opportunities for investigating and understanding phenomena that take place in complex (bio)molecular architectures.
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Affiliation(s)
- Benoit Colasson
- Université de Paris, UMR 8601, LCBPT, CNRS, 45 rue des Saints-Pères, 75006, Paris, France.,Photochemical Nanosciences Laboratory, Dipartimento di Chimica "G. Ciamician", Università di Bologna, via Selmi 2, 40126, Bologna, Italy
| | - Alberto Credi
- Dipartimento di Scienze e Tecnologie Agro-alimentari, Università di Bologna, viale Fanin 50, 40127, Bologna, Italy.,CLAN-Center for Light Activated Nanostructures, Università di Bologna and Consiglio Nazionale delle Ricerche, via P. Gobetti 101, 40129, Bologna, Italy.,Istituto ISOF-CNR, via P. Gobetti 101, 40129, Bologna, Italy
| | - Barbara Ventura
- Istituto ISOF-CNR, via P. Gobetti 101, 40129, Bologna, Italy
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20
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David AHG, Casares R, Cuerva JM, Campaña AG, Blanco V. A [2]Rotaxane-Based Circularly Polarized Luminescence Switch. J Am Chem Soc 2019; 141:18064-18074. [PMID: 31638802 PMCID: PMC6975276 DOI: 10.1021/jacs.9b07143] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
A rotaxane-based molecular shuttle
has been synthesized in which
the switching of the position of a fluorescent macrocycle on the thread
turns “on” or “off” the circularly polarized
luminescence (CPL) of the system while maintaining similar fluorescence
profiles and quantum yields in both states. The chiroptical activity
relies on the chiral information transfer from an ammonium salt incorporating d- or l-phenylalanine residues as chiral stereogenic
covalent units to an otherwise achiral crown ether macrocycle bearing
a luminescent 2,2′-bipyrene unit when they interact through
hydrogen bonding. Each enantiomeric thread induces CPL responses of
opposite signs on the macrocycle. Upon addition of base, the switching
of the position of the macrocycle to a triazolium group disables the
chiral information transfer to the macrocycle, switching “off”
the CPL response. The in situ switching upon several acid/base cycles
is also demonstrated.
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Affiliation(s)
- Arthur H G David
- Departamento de Química Orgánica, Facultad de Ciencias, Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente (UEQ) , Universidad de Granada (UGR) , Avda. Fuente Nueva S/N , Granada 18071 , Spain
| | - Raquel Casares
- Departamento de Química Orgánica, Facultad de Ciencias, Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente (UEQ) , Universidad de Granada (UGR) , Avda. Fuente Nueva S/N , Granada 18071 , Spain
| | - Juan M Cuerva
- Departamento de Química Orgánica, Facultad de Ciencias, Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente (UEQ) , Universidad de Granada (UGR) , Avda. Fuente Nueva S/N , Granada 18071 , Spain
| | - Araceli G Campaña
- Departamento de Química Orgánica, Facultad de Ciencias, Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente (UEQ) , Universidad de Granada (UGR) , Avda. Fuente Nueva S/N , Granada 18071 , Spain
| | - Victor Blanco
- Departamento de Química Orgánica, Facultad de Ciencias, Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente (UEQ) , Universidad de Granada (UGR) , Avda. Fuente Nueva S/N , Granada 18071 , Spain
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21
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Abstract
Directed motion at the nanoscale is a central attribute of life, and chemically driven motor proteins are nature's choice to accomplish it. Motivated and inspired by such bionanodevices, in the past few decades chemists have developed artificial prototypes of molecular motors, namely, multicomponent synthetic species that exhibit directionally controlled, stimuli-induced movements of their parts. In this context, photonic and redox stimuli represent highly appealing modes of activation, particularly from a technological viewpoint. Here we describe the evolution of the field of photo- and redox-driven artificial molecular motors, and we provide a comprehensive review of the work published in the past 5 years. After an analysis of the general principles that govern controlled and directed movement at the molecular scale, we describe the fundamental photochemical and redox processes that can enable its realization. The main classes of light- and redox-driven molecular motors are illustrated, with a particular focus on recent designs, and a thorough description of the functions performed by these kinds of devices according to literature reports is presented. Limitations, challenges, and future perspectives of the field are critically discussed.
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Affiliation(s)
- Massimo Baroncini
- CLAN-Center for Light Activated Nanostructures , Istituto ISOF-CNR , via Gobetti 101 , 40129 Bologna , Italy.,Dipartimento di Scienze e Tecnologie Agro-alimentari , Università di Bologna , viale Fanin 44 , 40127 Bologna , Italy
| | - Serena Silvi
- CLAN-Center for Light Activated Nanostructures , Istituto ISOF-CNR , via Gobetti 101 , 40129 Bologna , Italy.,Dipartimento di Chimica "G. Ciamician" , Università di Bologna , via Selmi 2 , 40126 Bologna , Italy
| | - Alberto Credi
- CLAN-Center for Light Activated Nanostructures , Istituto ISOF-CNR , via Gobetti 101 , 40129 Bologna , Italy.,Dipartimento di Scienze e Tecnologie Agro-alimentari , Università di Bologna , viale Fanin 44 , 40127 Bologna , Italy
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22
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Echavarren J, Gall MAY, Haertsch A, Leigh DA, Marcos V, Tetlow DJ. Active template rotaxane synthesis through the Ni-catalyzed cross-coupling of alkylzinc reagents with redox-active esters. Chem Sci 2019; 10:7269-7273. [PMID: 31588296 PMCID: PMC6686731 DOI: 10.1039/c9sc02457c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Accepted: 06/15/2019] [Indexed: 12/24/2022] Open
Abstract
The synthesis of unsymmetrical axle [2]rotaxanes through a recently developed Ni-catalyzed C(sp3)-C(sp3) cross-coupling of redox-active esters (formed directly from carboxylic acids) and organozinc reagents (derived from alkyl bromides) is reported. The method also furnishes, as a minor product, the symmetrical axle [2]rotaxanes resulting from the homo-coupling of the organozinc half-thread. The rotaxanes are formed in up to 56% yield with the ratio of unsymmetrical rotaxane increasing with the cavity size of the macrocycle. In the absence of the redox-active ester neither rotaxane is formed, even though the homo-coupling rotaxane product does not incorporate the redox-active ester building block. A Ni(iii) intermediate is consistent with these observations, providing support for the previously postulated mechanism of the Ni-catalyzed cross-coupling reaction.
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Affiliation(s)
- Javier Echavarren
- School of Chemistry , University of Manchester , Oxford Road , Manchester , M13 9PL , UK .
| | - Malcolm A Y Gall
- School of Chemistry , University of Manchester , Oxford Road , Manchester , M13 9PL , UK .
| | - Adrian Haertsch
- School of Chemistry , University of Manchester , Oxford Road , Manchester , M13 9PL , UK .
| | - David A Leigh
- School of Chemistry , University of Manchester , Oxford Road , Manchester , M13 9PL , UK .
| | - Vanesa Marcos
- School of Chemistry , University of Manchester , Oxford Road , Manchester , M13 9PL , UK .
| | - Daniel J Tetlow
- School of Chemistry , University of Manchester , Oxford Road , Manchester , M13 9PL , UK .
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23
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David AHG, García-Cerezo P, Campaña AG, Santoyo-González F, Blanco V. [2]Rotaxane End-Capping Synthesis by Click Michael-Type Addition to the Vinyl Sulfonyl Group. Chemistry 2019; 25:6170-6179. [PMID: 30762912 DOI: 10.1002/chem.201900156] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Indexed: 01/23/2023]
Abstract
We report the application of the click Michael-type addition reaction to vinyl sulfone or vinyl sulfonate groups in the synthesis of rotaxanes through the threading-and-capping method. This methodology has proven to be efficient and versatile as it allowed the preparation of rotaxanes using template approaches based on different noncovalent interactions (i.e., donor-acceptor π-π interactions or hydrogen bonding) in yields of generally 60-80 % and up to 91 % aided by the mild conditions required (room temperature or 0 °C and a mild base such as Et3 N or 4-(N,N-dimethylamino)pyridine (DMAP)). Furthermore, the use of vinyl sulfonate moieties, which are suitable motifs for coupling-and-decoupling (CAD) chemistry, implies another advantage because it allows the controlled chemical disassembly of the rotaxanes into their components through nucleophilic substitution of the sulfonates resulting from the capping step with a thiol under mild conditions (Cs2 CO3 and room temperature).
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Affiliation(s)
- Arthur H G David
- Departamento de Química Orgánica, Universidad de Granada, Facultad de Ciencias, Avda. Fuente Nueva, S/N, 18071, Granada, Spain
| | - Pablo García-Cerezo
- Departamento de Química Orgánica, Universidad de Granada, Facultad de Ciencias, Avda. Fuente Nueva, S/N, 18071, Granada, Spain
| | - Araceli G Campaña
- Departamento de Química Orgánica, Universidad de Granada, Facultad de Ciencias, Avda. Fuente Nueva, S/N, 18071, Granada, Spain
| | - Francisco Santoyo-González
- Departamento de Química Orgánica, Universidad de Granada, Facultad de Ciencias, Avda. Fuente Nueva, S/N, 18071, Granada, Spain
| | - Victor Blanco
- Departamento de Química Orgánica, Universidad de Granada, Facultad de Ciencias, Avda. Fuente Nueva, S/N, 18071, Granada, Spain
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24
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Gauthier M, Coutrot F. Weinreb Amide as Secondary Station for the Dibenzo-24-crown-8 in a Molecular Shuttle. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900046] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Maxime Gauthier
- Supramolecular Machines and ARchitectures Team; Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS; Université de Montpellier; ENSCM, case courrier 1706; Bâtiment Chimie (17), 3ème étage, Faculté des Sciences; Place Eugène Bataillon 34095 Montpellier cedex 5 France
| | - Frédéric Coutrot
- Supramolecular Machines and ARchitectures Team; Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS; Université de Montpellier; ENSCM, case courrier 1706; Bâtiment Chimie (17), 3ème étage, Faculté des Sciences; Place Eugène Bataillon 34095 Montpellier cedex 5 France
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25
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Chen S, Wang Y, Nie T, Bao C, Wang C, Xu T, Lin Q, Qu DH, Gong X, Yang Y, Zhu L, Tian H. An Artificial Molecular Shuttle Operates in Lipid Bilayers for Ion Transport. J Am Chem Soc 2018; 140:17992-17998. [PMID: 30445811 DOI: 10.1021/jacs.8b09580] [Citation(s) in RCA: 126] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Inspired by natural biomolecular machines, synthetic molecular-level machines have been proven to perform well-defined mechanical tasks and measurable work. To mimic the function of channel proteins, we herein report the development of a synthetic molecular shuttle, [2]rotaxane 3, as a unimolecular vehicle that can be inserted into lipid bilayers to perform passive ion transport through its stochastic shuttling motion. The [2]rotaxane molecular shuttle is composed of an amphiphilic molecular thread with three binding stations, which is interlocked in a macrocycle wheel component that tethers a K+ carrier. The structural characteristics enable the rotaxane to transport ions across the lipid bilayers, similar to a cable car, transporting K+ with an EC50 value of 1.0 μM (3.0 mol % relative to lipid). We expect that this simple molecular machine will provide new opportunities for developing more effective and selective ion transporters.
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Affiliation(s)
- Sujun Chen
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering , East China University of Science & Technology , 130 Meilong Road , Shanghai , 200237 , China
| | - Yichuan Wang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering , East China University of Science & Technology , 130 Meilong Road , Shanghai , 200237 , China
| | - Ting Nie
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering , East China University of Science & Technology , 130 Meilong Road , Shanghai , 200237 , China
| | - Chunyan Bao
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering , East China University of Science & Technology , 130 Meilong Road , Shanghai , 200237 , China
| | - Chenxi Wang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering , East China University of Science & Technology , 130 Meilong Road , Shanghai , 200237 , China
| | - Tianyi Xu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering , East China University of Science & Technology , 130 Meilong Road , Shanghai , 200237 , China
| | - Qiuning Lin
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering , East China University of Science & Technology , 130 Meilong Road , Shanghai , 200237 , China
| | - Da-Hui Qu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering , East China University of Science & Technology , 130 Meilong Road , Shanghai , 200237 , China
| | - Xueqing Gong
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering , East China University of Science & Technology , 130 Meilong Road , Shanghai , 200237 , China
| | - Yi Yang
- Optogenetics & Synthetic Biology Interdisciplinary Research Center, State Key Laboratory of Bioreactor Engineering, School of Pharmacy , East China University of Science & Technology , 130 Meilong Road , Shanghai , 200237 , China
| | - Linyong Zhu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering , East China University of Science & Technology , 130 Meilong Road , Shanghai , 200237 , China
| | - He Tian
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering , East China University of Science & Technology , 130 Meilong Road , Shanghai , 200237 , China
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26
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Riss-Yaw B, Clavel C, Laurent P, Waelès P, Coutrot F. The Importance of Length and Flexibility of Macrocycle-Containing Molecular Translocators for the Synthesis of Improbable [2]Rotaxanes. Chemistry 2018; 24:13659-13666. [PMID: 29969523 DOI: 10.1002/chem.201802831] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 07/02/2018] [Indexed: 12/20/2022]
Abstract
This work reports on the use of molecular translocators to capture a dibenzo-24-crown-8 (DB24C8) and then release it onto targeted molecular axles to afford, after removal of the translocator, [2]rotaxanes that do not hold any template site. Various translocators were studied and successfully aided the synthesis, with more or less efficacy, of [2]rotaxanes of different lengths. During the releasing step, the DB24C8 macrocycle shuttles along the thread, and the localization of the macrocycle might be driven by steric repulsion on the translocator part and/or electronic attraction of the targeted part of the axle to be encircled, which depends on both the nature of the translocator and the targeted thread to be encircled.
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Affiliation(s)
- Benjamin Riss-Yaw
- Supramolecular Machines and Architectures Team, Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS, Université de Montpellier, ENSCM, case courrier 1706, Bâtiment Chimie (17), 3ème étage, Faculté des Sciences, Place Eugène Bataillon, 34095, Montpellier cedex 5, France
| | - Caroline Clavel
- Supramolecular Machines and Architectures Team, Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS, Université de Montpellier, ENSCM, case courrier 1706, Bâtiment Chimie (17), 3ème étage, Faculté des Sciences, Place Eugène Bataillon, 34095, Montpellier cedex 5, France
| | - Philippe Laurent
- Supramolecular Machines and Architectures Team, Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS, Université de Montpellier, ENSCM, case courrier 1706, Bâtiment Chimie (17), 3ème étage, Faculté des Sciences, Place Eugène Bataillon, 34095, Montpellier cedex 5, France
| | - Philip Waelès
- Supramolecular Machines and Architectures Team, Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS, Université de Montpellier, ENSCM, case courrier 1706, Bâtiment Chimie (17), 3ème étage, Faculté des Sciences, Place Eugène Bataillon, 34095, Montpellier cedex 5, France
| | - Frédéric Coutrot
- Supramolecular Machines and Architectures Team, Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS, Université de Montpellier, ENSCM, case courrier 1706, Bâtiment Chimie (17), 3ème étage, Faculté des Sciences, Place Eugène Bataillon, 34095, Montpellier cedex 5, France
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27
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Erbas-Cakmak S, Fielden SDP, Karaca U, Leigh DA, McTernan CT, Tetlow DJ, Wilson MR. Rotary and linear molecular motors driven by pulses of a chemical fuel. Science 2017; 358:340-343. [DOI: 10.1126/science.aao1377] [Citation(s) in RCA: 229] [Impact Index Per Article: 32.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Accepted: 09/01/2017] [Indexed: 12/13/2022]
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28
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Masai H, Fujihara T, Tsuji Y, Terao J. Programmed Synthesis of Molecular Wires with Fixed Insulation and Defined Length Based on Oligo(phenylene ethynylene) and Permethylated α-Cyclodextrins. Chemistry 2017; 23:15073-15079. [DOI: 10.1002/chem.201701428] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Indexed: 12/24/2022]
Affiliation(s)
- Hiroshi Masai
- Department of Energy and Hydrocarbon Chemistry; Graduate School of Engineering; Kyoto University; Kyoto 615-8510 Japan
- Present address: Graduate School of Frontier Sciences; The University of Tokyo; Chiba 277-8561 Japan
| | - Tetsuaki Fujihara
- Department of Energy and Hydrocarbon Chemistry; Graduate School of Engineering; Kyoto University; Kyoto 615-8510 Japan
| | - Yasushi Tsuji
- Department of Energy and Hydrocarbon Chemistry; Graduate School of Engineering; Kyoto University; Kyoto 615-8510 Japan
| | - Jun Terao
- Department of Basic Science; Graduate School of Art and Sciences; The University of Tokyo; Tokyo 153-8902 Japan
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29
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Eichstaedt K, Jaramillo-Garcia J, Leigh DA, Marcos V, Pisano S, Singleton TA. Switching between Anion-Binding Catalysis and Aminocatalysis with a Rotaxane Dual-Function Catalyst. J Am Chem Soc 2017. [DOI: 10.1021/jacs.7b04955] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Katarzyna Eichstaedt
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | | | - David A. Leigh
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Vanesa Marcos
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Simone Pisano
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Thomas A. Singleton
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
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30
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Li HG, Wang GW. Liquid-Assisted One-Pot Mechanosynthesis and Properties of Neutral Donor–Acceptor [2]Rotaxanes. J Org Chem 2017; 82:6341-6348. [DOI: 10.1021/acs.joc.7b00912] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hai-Gen Li
- CAS
Key Laboratory of Soft Matter Chemistry, Collaborative Innovation
Center of Chemistry for Energy Materials (iChEM), Hefei National Laboratory
for Physical Sciences at Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Guan-Wu Wang
- CAS
Key Laboratory of Soft Matter Chemistry, Collaborative Innovation
Center of Chemistry for Energy Materials (iChEM), Hefei National Laboratory
for Physical Sciences at Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, Gansu 730000, P. R. China
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31
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Yang LP, Jia F, Cui JS, Lu SB, Jiang W. Light-Controlled Switching of a Non-photoresponsive Molecular Shuttle. Org Lett 2017; 19:2945-2948. [DOI: 10.1021/acs.orglett.7b01184] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Liu-Pan Yang
- Department
of Chemistry, South University of Science and Technology of China, Xueyuan Boulevard 1088, Nanshan District, Shenzhen 518055, P. R. China
- Dalian
Institute of Chemical Physics, Chinese Academy of Science, Dalian 116023, P. R. China
| | - Fei Jia
- Department
of Chemistry, South University of Science and Technology of China, Xueyuan Boulevard 1088, Nanshan District, Shenzhen 518055, P. R. China
| | - Jie-Shun Cui
- Department
of Chemistry, South University of Science and Technology of China, Xueyuan Boulevard 1088, Nanshan District, Shenzhen 518055, P. R. China
| | - Song-Bo Lu
- Department
of Chemistry, South University of Science and Technology of China, Xueyuan Boulevard 1088, Nanshan District, Shenzhen 518055, P. R. China
| | - Wei Jiang
- Department
of Chemistry, South University of Science and Technology of China, Xueyuan Boulevard 1088, Nanshan District, Shenzhen 518055, P. R. China
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32
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Steemers L, Wanner MJ, Ehlers AW, Hiemstra H, van Maarseveen JH. A Short Covalent Synthesis of an All-Carbon-Ring [2]Rotaxane. Org Lett 2017; 19:2342-2345. [PMID: 28437085 PMCID: PMC5423707 DOI: 10.1021/acs.orglett.7b00877] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
While
the current supramolecular syntheses of [2]rotaxanes are
generally efficient, the final product always retains the functional
groups required for non-covalent preorganization. A short and high-yielding
covalent-template-assisted approach is reported for the synthesis
of a [2]rotaxane. A terephthalic acid template core preorganizes the
covalently connected ring precursor fragments to induce a clipping-type
cyclization over the thread moiety. Cleavage of the temporary ester
bonds that connect the ring and thread fragments liberates the [2]rotaxane.
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Affiliation(s)
- Luuk Steemers
- Van't Hoff Institute for Molecular Chemistry, University of Amsterdam , Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Martin J Wanner
- Van't Hoff Institute for Molecular Chemistry, University of Amsterdam , Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Andreas W Ehlers
- Van't Hoff Institute for Molecular Chemistry, University of Amsterdam , Science Park 904, 1098 XH Amsterdam, The Netherlands.,Department of Chemistry, University of Johannesburg , Auckland Park, Johannesburg 2006, South Africa
| | - Henk Hiemstra
- Van't Hoff Institute for Molecular Chemistry, University of Amsterdam , Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Jan H van Maarseveen
- Van't Hoff Institute for Molecular Chemistry, University of Amsterdam , Science Park 904, 1098 XH Amsterdam, The Netherlands
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33
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Ragazzon G, Credi A, Colasson B. Thermodynamic Insights on a Bistable Acid-Base Switchable Molecular Shuttle with Strongly Shifted Co-conformational Equilibria. Chemistry 2017; 23:2149-2156. [PMID: 27918617 DOI: 10.1002/chem.201604783] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Indexed: 12/31/2022]
Abstract
Bistable [2]rotaxanes in which the affinities of the two stations can be reversed form the basis of molecular shuttles. Gaining quantitative information on such rotaxanes in which the ring distribution between the two stations is largely nonsymmetric has proven to be very challenging. Herein, we report on two independent experimental methodologies, based on luminescence lifetime measurements and acid-base titrations, to determine the relative populations of the two co-conformations of a [2]rotaxane. The assays yield convergent results and are sensitive enough to measure an equilibrium constant (K≈4000) out of reach for NMR spectroscopy. We also estimate the ring distribution constant in the switched (deprotonated) state (K'<10-4 ), and report the highest positional efficiency for stimuli-induced shuttling to date (>99.92 %). Finally, our results show that the pKa of the pH-responsive station depends on the ring affinity of the pH-insensitive station, an observation that paves the way for the design of new artificial allosteric systems.
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Affiliation(s)
- Giulio Ragazzon
- Dipartimento di Chimica "G. Ciamician", Università di Bologna, via Selmi 2, 40126, Bologna, Italy
| | - Alberto Credi
- Dipartimento di Scienze e Tecnologie Agro-alimentari, Università di Bologna, Viale Fanin 44, 40127, Bologna, Italy
| | - Benoit Colasson
- Dipartimento di Chimica "G. Ciamician", Università di Bologna, via Selmi 2, 40126, Bologna, Italy.,Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques (CNRS UMR 8601), Université Paris Descartes Sorbonne Paris Cité, 45 rue des Saints-Pères, 75006, Paris, France
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34
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Riss-Yaw B, Clavel C, Laurent P, Coutrot F. The relationship between the conformational degree of freedom of template-containing threads and slippage in the formation of [2]rotaxane building blocks. Chem Commun (Camb) 2017; 53:10874-10877. [DOI: 10.1039/c7cc06598a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Slippage is correlated with the degree of freedom of the molecular thread to be encircled. The straighter the thread, the faster is the slippage.
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Affiliation(s)
- B. Riss-Yaw
- Supramolecular Machines and ARchitectures Team
- Institut des Biomolécules Max Mousseron (IBMM)
- Univ. Montpellier
- UMR 5247 CNRS
- ENSCM
| | - C. Clavel
- Supramolecular Machines and ARchitectures Team
- Institut des Biomolécules Max Mousseron (IBMM)
- Univ. Montpellier
- UMR 5247 CNRS
- ENSCM
| | - Ph. Laurent
- Supramolecular Machines and ARchitectures Team
- Institut des Biomolécules Max Mousseron (IBMM)
- Univ. Montpellier
- UMR 5247 CNRS
- ENSCM
| | - F. Coutrot
- Supramolecular Machines and ARchitectures Team
- Institut des Biomolécules Max Mousseron (IBMM)
- Univ. Montpellier
- UMR 5247 CNRS
- ENSCM
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35
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Shang J, Rambo BM, Hao X, Xiang JF, Gong HY, Sessler JL. Post-synthetic modification of a macrocyclic receptor via regioselective imidazolium ring-opening. Chem Sci 2016; 7:4148-4157. [PMID: 30155059 PMCID: PMC6014093 DOI: 10.1039/c5sc04860e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 03/03/2016] [Indexed: 11/22/2022] Open
Abstract
A facile post-synthetic modification of a tetracationic tetraimidazolium macrocycle, 14+ (i.e., the "Texas-sized" molecular box (cyclo[2](2,6-di(1H-imidazol-1-yl)pyridine)[2](1,4-dimethylenebenzene)), is described. Under mild basic conditions, ring-opening of the imidazolium moieties occurs. This results in two new isomeric dicationic macrocycles. This simple yet efficient modification serves to alter the size of the molecular cavity, the charge of the macromolecular receptor, and the manner whereby it interacts with dianionic guest molecules. The isomeric mixture of imidazolium ring opened macrocycles can be synthesized in relatively high overall yield (86-93%). The reaction shows regioselectivity and the ratio of major to minor (i.e., trans : cis ring-opened products) was determined to be ca. 3 : 1 via1H NMR spectroscopy. The major isomer, trans-cyclo[2]((Z)-N-(2-((6-(1H-imidazol-1-yl)pyridin-2-yl)amino)vinyl)formamide)[2](1,4-bismethylbenzene) hexafluorophosphate (22+·2PF6-), was isolated in its pure form in 42% yield via recrystallization. The molecular recognition properties of 22+ were investigated using a series of dianionic guests (i.e., 2,6-naphthalenedicarboxylate (4), 2,6-naphthalenedisulfonate (5), and 1,5-naphthalenedisulfonate (6)) whose binding interactions with 14+ have been previously reported. This allowed us to evaluate how imidazolium ring-opening affects the inherent host/guest interactions of 14+. On the basis of solution spectroscopic studies (e.g., 1H NMR, 1H-1H COSY NMR, DOSY NMR, and NOESY NMR), in tandem with mass spectrometric analyses (ESI-MS) and single-crystal X-ray diffraction studies, we conclude that opening up the macrocyclic structure (i.e., converting 14+ to 22+) leads to considerable changes in the recognition behavior, with so-called outside binding or weak ion pair interactions, rather than pseudorotaxane formation, being favored both in solution and the solid-state. We postulate that methodologies such as those described herein could provide a means to control the molecular interactions of both free-standing macrocycles and those used to construct mechanically-interlocked molecules. Indeed, the application of hydroxide anion under the present conditions not only serves to effect the ring-opening of 14+, but also pseudorotaxane structures, such as, e.g., [14+·4] or [14+·5] derived there from.
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Affiliation(s)
- Jia Shang
- College of Chemistry , Beijing Normal University , Xinjiekouwaidajie 19 , Beijing 100875 , P. R. China .
| | - Brett M Rambo
- Department of Chemistry , The University of Texas at Austin , 105 East 24th Street, Stop A5300 , Austin , Texas 78712-1224 , USA .
| | - Xiang Hao
- Institute of Chemistry , Chinese Academy of Sciences , Zhongguancunbeiyijie 2 , Beijing 100190 , P. R. China
| | - Jun-Feng Xiang
- Institute of Chemistry , Chinese Academy of Sciences , Zhongguancunbeiyijie 2 , Beijing 100190 , P. R. China
| | - Han-Yuan Gong
- College of Chemistry , Beijing Normal University , Xinjiekouwaidajie 19 , Beijing 100875 , P. R. China .
| | - Jonathan L Sessler
- Department of Chemistry , The University of Texas at Austin , 105 East 24th Street, Stop A5300 , Austin , Texas 78712-1224 , USA .
- Department of Chemistry , Shanghai University , Shanghai 200444 , China
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36
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Ma X, Zhang J, Cao J, Yao X, Cao T, Gong Y, Zhao C, Tian H. A room temperature phosphorescence encoding [2]rotaxane molecular shuttle. Chem Sci 2016; 7:4582-4588. [PMID: 30155105 PMCID: PMC6016324 DOI: 10.1039/c6sc00769d] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 03/25/2016] [Indexed: 12/16/2022] Open
Abstract
A novel bistable molecular shuttle, composed of a Pt(ii) porphyrin-containing dibenzo[24]crown-8 macrocycle threaded onto two different recognition sites (secondary dialkylammonium (NH2+) and 4,4'-bipyridinium (Bpym2+) units), and the anthracene (Anth) moiety as one terminal stopper, was synthesized by click chemistry. Its acid-base switchable shuttling could be addressed by both the room temperature phosphorescence (RTP) emission signals of the Pt(ii) porphyrin moiety and the fluorescence emission of the Anth unit, as well as their lifetime changes. When the macrocycle was switched to be located on the NH2+ site close to Anth, the Pt(ii) porphyrin moiety exhibited strong RTP emission, excited in the Anth band at 370 nm. This was due to the distance-dependent efficient singlet energy transfer between the Anth unit and the porphyrin moiety, followed by intersystem crossing from a singlet to a triplet state in Pt(ii) porphyrin, while its RTP emission dramatically decreased when located on the Bpym2+ site far from the Anth unit. When excited in the porphyrin band at 402 nm, the RTP emission lifetimes changed obviously. This is the first rotaxane-type molecular shuttle whose shuttling has been encoded by RTP signals.
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Affiliation(s)
- Xiang Ma
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals , East China University of Science & Technology , Shanghai 200237 , P. R. China .
| | - Jing Zhang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals , East China University of Science & Technology , Shanghai 200237 , P. R. China .
| | - Jingjing Cao
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals , East China University of Science & Technology , Shanghai 200237 , P. R. China .
| | - Xuyang Yao
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals , East China University of Science & Technology , Shanghai 200237 , P. R. China .
| | - Tiantian Cao
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals , East China University of Science & Technology , Shanghai 200237 , P. R. China .
| | - Yifan Gong
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals , East China University of Science & Technology , Shanghai 200237 , P. R. China .
| | - Chunchang Zhao
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals , East China University of Science & Technology , Shanghai 200237 , P. R. China .
| | - He Tian
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals , East China University of Science & Technology , Shanghai 200237 , P. R. China .
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37
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Legigan T, Riss-Yaw B, Clavel C, Coutrot F. Active Esters as Pseudostoppers for Slippage Synthesis of [2]Pseudorotaxane Building Blocks: A Straightforward Route to Multi-Interlocked Molecular Machines. Chemistry 2016; 22:8835-47. [DOI: 10.1002/chem.201601286] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Indexed: 01/26/2023]
Affiliation(s)
- Thibaut Legigan
- Supramolecular Machines and ARchitectures Team; Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS; Université Montpellier - ENSCM; case courrier 1706; Bâtiment Chimie (17), 3ème étage, Faculté des Sciences; Place Eugène Bataillon 34095 Montpellier cedex 5 France
| | - Benjamin Riss-Yaw
- Supramolecular Machines and ARchitectures Team; Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS; Université Montpellier - ENSCM; case courrier 1706; Bâtiment Chimie (17), 3ème étage, Faculté des Sciences; Place Eugène Bataillon 34095 Montpellier cedex 5 France
| | - Caroline Clavel
- Supramolecular Machines and ARchitectures Team; Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS; Université Montpellier - ENSCM; case courrier 1706; Bâtiment Chimie (17), 3ème étage, Faculté des Sciences; Place Eugène Bataillon 34095 Montpellier cedex 5 France
| | - Frédéric Coutrot
- Supramolecular Machines and ARchitectures Team; Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS; Université Montpellier - ENSCM; case courrier 1706; Bâtiment Chimie (17), 3ème étage, Faculté des Sciences; Place Eugène Bataillon 34095 Montpellier cedex 5 France
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38
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Masai H, Terao J, Fujihara T, Tsuji Y. Rational Design for Rotaxane Synthesis through Intramolecular Slippage: Control of Activation Energy by Rigid Axle Length. Chemistry 2016; 22:6624-30. [PMID: 27027800 DOI: 10.1002/chem.201600429] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Indexed: 11/07/2022]
Abstract
We describe a new concept for rotaxane synthesis through intramolecular slippage using π-conjugated molecules as rigid axles linked with organic soluble and flexible permethylated α-cyclodextrins (PM α-CDs) as macrocycles. Through hydrophilic-hydrophobic interactions and flipping of PM α-CDs, successful quantitative conversion into rotaxanes was achieved without covalent bond formation. The rotaxanes had high activation barrier for their de-threading, so that they were kinetically isolated and derivatized even under conditions unfavorable for maintaining the rotaxane structures. (1) H NMR spectroscopy experiments clearly revealed that the restricted motion of the linked macrocycle with the rigid axle made it possible to control the kinetic stability by adjusting the length of the rigid axle in the precursor structure rather than the steric bulkiness of the stopper unit.
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Affiliation(s)
- Hiroshi Masai
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan
| | - Jun Terao
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan.
| | - Tetsuaki Fujihara
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan
| | - Yasushi Tsuji
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan
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39
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Meng Z, Xiang JF, Chen CF. Directional Molecular Transportation Based on a Catalytic Stopper-Leaving Rotaxane System. J Am Chem Soc 2016; 138:5652-8. [PMID: 27078221 DOI: 10.1021/jacs.6b01852] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Ratchet mechanism has proved to be a key principle in designing molecular motors and machines that exploit random thermal fluctuations for directional motion with energy input. To integrate ratchet mechanism into artificial systems, precise molecular design is a prerequisite to control the pathway of relative motion between their subcomponents, which is still a formidable challenge. Herein, we report a straightforward method to control the transportation barrier of a macrocycle by selectively detaching one of the two stoppers using a novel DBU-catalyzed stopper-leaving reaction in a rotaxane system. The macrocycle was first allowed to thread onto a semidumbbell axle from the open end and subsequently thermodynamically captured into a nonsymmetrical rotaxane. Then, it was driven energetically uphill until it reached a kinetically trapped state by destroying its interaction with ammonium site, and was finally quantitatively released from the other end when the corresponding stopper barrier was removed. Although the directional transportation at the present system was achieved by discrete chemical reactions for the sake of higher transportation efficiency, it represents a new molecular transportation model by the strategy of using stopper-leavable rotaxane.
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Affiliation(s)
- Zheng Meng
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.,University of Chinese Academy of Sciences , Beijing 100049, China
| | - Jun-Feng Xiang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - Chuan-Feng Chen
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
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40
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Schäfer C, Ragazzon G, Colasson B, La Rosa M, Silvi S, Credi A. An Artificial Molecular Transporter. ChemistryOpen 2016; 5:120-4. [PMID: 27308223 PMCID: PMC4906471 DOI: 10.1002/open.201500217] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Indexed: 11/12/2022] Open
Abstract
The transport of substrates is one of the main tasks of biomolecular machines in living organisms. We report a synthetic small-molecule system designed to catch, displace, and release molecular cargo in solution under external control. The system consists of a bistable rotaxane that behaves as an acid-base controlled molecular shuttle, whose ring component bears a tether ending with a nitrile group. The latter can be coordinated to a ruthenium complex that acts as the load, and dissociated upon irradiation with visible light. The cargo loading/unloading and ring transfer/return processes are reversible and can be controlled independently. The robust coordination bond ensures that the cargo remains attached to the device while the transport takes place.
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Affiliation(s)
- Christian Schäfer
- Photochemical Nanosciences LaboratoryDipartimento di Chimica “G. Ciamician”Alma Mater Studiorum-Università di Bolognavia Selmi 240126BolognaItaly
| | - Giulio Ragazzon
- Photochemical Nanosciences LaboratoryDipartimento di Chimica “G. Ciamician”Alma Mater Studiorum-Università di Bolognavia Selmi 240126BolognaItaly
| | - Benoit Colasson
- Photochemical Nanosciences LaboratoryDipartimento di Chimica “G. Ciamician”Alma Mater Studiorum-Università di Bolognavia Selmi 240126BolognaItaly
| | - Marcello La Rosa
- Photochemical Nanosciences LaboratoryDipartimento di Chimica “G. Ciamician”Alma Mater Studiorum-Università di Bolognavia Selmi 240126BolognaItaly
| | - Serena Silvi
- Photochemical Nanosciences LaboratoryDipartimento di Chimica “G. Ciamician”Alma Mater Studiorum-Università di Bolognavia Selmi 240126BolognaItaly
| | - Alberto Credi
- Photochemical Nanosciences LaboratoryDipartimento di Chimica “G. Ciamician”Alma Mater Studiorum-Università di Bolognavia Selmi 240126BolognaItaly
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41
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Ariga K, Li J, Fei J, Ji Q, Hill JP. Nanoarchitectonics for Dynamic Functional Materials from Atomic-/Molecular-Level Manipulation to Macroscopic Action. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:1251-86. [PMID: 26436552 DOI: 10.1002/adma.201502545] [Citation(s) in RCA: 291] [Impact Index Per Article: 36.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 07/27/2015] [Indexed: 05/21/2023]
Abstract
Objects in all dimensions are subject to translational dynamism and dynamic mutual interactions, and the ability to exert control over these events is one of the keys to the synthesis of functional materials. For the development of materials with truly dynamic functionalities, a paradigm shift from "nanotechnology" to "nanoarchitectonics" is proposed, with the aim of design and preparation of functional materials through dynamic harmonization of atomic-/molecular-level manipulation and control, chemical nanofabrication, self-organization, and field-controlled organization. Here, various examples of dynamic functional materials are presented from the atom/molecular-level to macroscopic dimensions. These systems, including atomic switches, molecular machines, molecular shuttles, motional crystals, metal-organic frameworks, layered assemblies, gels, supramolecular assemblies of biomaterials, DNA origami, hollow silica capsules, and mesoporous materials, are described according to their various dynamic functions, which include short-term plasticity, long-term potentiation, molecular manipulation, switchable catalysis, self-healing properties, supramolecular chirality, morphological control, drug storage and release, light-harvesting, mechanochemical transduction, molecular tuning molecular recognition, hand-operated nanotechnology.
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Affiliation(s)
- Katsuhiko Ariga
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, 305-0044, Japan
| | - Junbai Li
- Beijing National Laboratory for Molecular Science, CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Science, Beijing, 100190, P. R. China
| | - Jinbo Fei
- Beijing National Laboratory for Molecular Science, CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Science, Beijing, 100190, P. R. China
| | - Qingmin Ji
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, 305-0044, Japan
| | - Jonathan P Hill
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, 305-0044, Japan
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42
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Coutrot F. A Focus on Triazolium as a Multipurpose Molecular Station for pH-Sensitive Interlocked Crown-Ether-Based Molecular Machines. ChemistryOpen 2015; 4:556-76. [PMID: 26491633 PMCID: PMC4608521 DOI: 10.1002/open.201500088] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Indexed: 12/19/2022] Open
Abstract
The control of motion of one element with respect to others in an interlocked architecture allows for different co-conformational states of a molecule. This can result in variations of physical or chemical properties. The increase of knowledge in the field of molecular interactions led to the design, the synthesis, and the study of various systems of molecular machinery in a wide range of interlocked architectures. In this field, the discovery of new molecular stations for macrocycles is an attractive way to conceive original molecular machines. In the very recent past, the triazolium moiety proved to interact with crown ethers in interlocked molecules, so that it could be used as an ideal molecular station. It also served as a molecular barrier in order to lock interlaced structures or to compartmentalize interlocked molecular machines. This review describes the recently reported examples of pH-sensitive triazolium-containing molecular machines and their peculiar features.
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Affiliation(s)
- Frédéric Coutrot
- Supramolecular Machines and Architectures Team, Institut des Biomolécules Max Mousseron (IBMM), UMR 5247 Cnrs, Faculté des Sciences, Université Montpellier, ENSCMBâtiment Chimie (17), 3ème étage, Place Eugène Bataillon, case courrier 1706, 34095, Montpellier cedex 5, France
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43
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Affiliation(s)
- Sundus Erbas-Cakmak
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - David A. Leigh
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Charlie T. McTernan
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Alina
L. Nussbaumer
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
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Álvarez CM, Barbero H, Miguel D. Multivalent Molecular Shuttles - Effect of Increasing the Number of Centers in Switchable Catalysts. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500942] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Waelès P, Clavel C, Fournel-Marotte K, Coutrot F. Synthesis of triazolium-based mono- and tris-branched [1]rotaxanes using a molecular transporter of dibenzo-24-crown-8. Chem Sci 2015; 6:4828-4836. [PMID: 28717488 PMCID: PMC5502395 DOI: 10.1039/c5sc01722j] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 05/28/2015] [Indexed: 11/21/2022] Open
Abstract
We report a diverted route to [1]rotaxane and tris-branched [1]rotaxane that are devoid of any efficient template and which could not be obtained by classical straightforward strategies. The described chemical route relies on the utilization of a "macrocycle transporter", which is able first to bind a macrocycle, second to link temporarily a triazolium-containing molecular axle, and third to deliver the macrocycle around the new docked axle through molecular machinery in a [1]rotaxane structure. The extended encircled thread is eventually cleaved by an amine or a triamine to afford the triazolium-containing [1]rotaxanes, releasing at the same time, the macrocycle transporter as a recyclable species.
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Affiliation(s)
- P Waelès
- Supramolecular Machines and Architectures Team , Faculté des Sciences , Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS , Université Montpellier , ENSCM , case courrier 1706, Bâtiment Chimie (17), 3ème étage, Place Eugène Bataillon , 34095 Montpellier cedex 5 , France . ; http://www.glycorotaxane.fr ; ; Tel: +33 4 67 14 38 43
| | - C Clavel
- Supramolecular Machines and Architectures Team , Faculté des Sciences , Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS , Université Montpellier , ENSCM , case courrier 1706, Bâtiment Chimie (17), 3ème étage, Place Eugène Bataillon , 34095 Montpellier cedex 5 , France . ; http://www.glycorotaxane.fr ; ; Tel: +33 4 67 14 38 43
| | - K Fournel-Marotte
- Supramolecular Machines and Architectures Team , Faculté des Sciences , Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS , Université Montpellier , ENSCM , case courrier 1706, Bâtiment Chimie (17), 3ème étage, Place Eugène Bataillon , 34095 Montpellier cedex 5 , France . ; http://www.glycorotaxane.fr ; ; Tel: +33 4 67 14 38 43
| | - F Coutrot
- Supramolecular Machines and Architectures Team , Faculté des Sciences , Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS , Université Montpellier , ENSCM , case courrier 1706, Bâtiment Chimie (17), 3ème étage, Place Eugène Bataillon , 34095 Montpellier cedex 5 , France . ; http://www.glycorotaxane.fr ; ; Tel: +33 4 67 14 38 43
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Blanco V, Leigh DA, Lewandowska U, Lewandowski B, Marcos V. Exploring the Activation Modes of a Rotaxane-Based Switchable Organocatalyst. J Am Chem Soc 2014; 136:15775-80. [DOI: 10.1021/ja509236u] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Victor Blanco
- School of Chemistry, University of Manchester, Oxford
Road, Manchester, M13 9PL, United Kingdom
| | - David A. Leigh
- School of Chemistry, University of Manchester, Oxford
Road, Manchester, M13 9PL, United Kingdom
| | - Urszula Lewandowska
- School of Chemistry, University of Manchester, Oxford
Road, Manchester, M13 9PL, United Kingdom
| | - Bartosz Lewandowski
- School of Chemistry, University of Manchester, Oxford
Road, Manchester, M13 9PL, United Kingdom
| | - Vanesa Marcos
- School of Chemistry, University of Manchester, Oxford
Road, Manchester, M13 9PL, United Kingdom
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