1
|
Liu SY, Li S, Ukai S, Nozawa R, Fukui N, Sugimori R, Kishi R, Shinokubo H. Homochiral and Heterochiral Self-Sorting Assemblies of Antiaromatic Ni(II) Norcorrole Dimers. Chemistry 2024:e202400292. [PMID: 38769938 DOI: 10.1002/chem.202400292] [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: 01/22/2024] [Revised: 05/19/2024] [Accepted: 05/21/2024] [Indexed: 05/22/2024]
Abstract
Recently, π-π stacked antiaromatic π-systems have received considerable attention because they can exhibit stacked-ring aromaticity due to substantial intermolecular orbital interactions. Here, we report three antiaromatic norcorrole dimers that self-assemble to form supramolecular architectures through chiral self-sorting. A 2,2'-linked norcorrole dimer with 3,5-di-tert-butylphenyl groups forms a π-stacked dimer both in solid and solution states via homochiral self-sorting. Its association constant in solution is (3.6±1.7)×105 M-1 at 20 °C. In the solid state, 3,3'-linked norcorrole dimers with 3,5-di-tert-butylphenyl and phenyl groups afford macrocyclic and helical supramolecular assemblies via heterochiral and homochiral self-sorting, respectively. Notably, the subtle modification in the substituent resulted in a complete change in the structure of the aggregates and the chiral self-sorting mode. The present findings demonstrate that structural manipulation in antiaromatic monomer units leads to the formation of various supramolecular assemblies on the basis of the attractive interactions between antiaromatic π-systems.
Collapse
Affiliation(s)
- Si-Yu Liu
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, and Integrated Research Consortium on Chemical Science (IRCCS), Nagoya University, Furo-cho, Chikusa-ku, 464-8603, Nagoya, Japan
| | - Sha Li
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, and Integrated Research Consortium on Chemical Science (IRCCS), Nagoya University, Furo-cho, Chikusa-ku, 464-8603, Nagoya, Japan
| | - Shusaku Ukai
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, and Integrated Research Consortium on Chemical Science (IRCCS), Nagoya University, Furo-cho, Chikusa-ku, 464-8603, Nagoya, Japan
| | - Ryo Nozawa
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, and Integrated Research Consortium on Chemical Science (IRCCS), Nagoya University, Furo-cho, Chikusa-ku, 464-8603, Nagoya, Japan
| | - Norihito Fukui
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, and Integrated Research Consortium on Chemical Science (IRCCS), Nagoya University, Furo-cho, Chikusa-ku, 464-8603, Nagoya, Japan
- PRESTO, Japan Science and Technology Agency (JST), Kawaguchi, 332-0012, Saitama, Japan
| | - Ryota Sugimori
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, 560-8531, Toyonaka, Osaka, Japan
| | - Ryohei Kishi
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, 560-8531, Toyonaka, Osaka, Japan
| | - Hiroshi Shinokubo
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, and Integrated Research Consortium on Chemical Science (IRCCS), Nagoya University, Furo-cho, Chikusa-ku, 464-8603, Nagoya, Japan
| |
Collapse
|
2
|
Chetot T, Marocco Stuardi F, Forot A, Ducreux M, Baudouin A, Chefdeville E, Perret F, Vial L, Leclaire J. Switching between Nonisoenergetic Dynamic Covalent Reactions Using Host-Guest Chemistry. J Am Chem Soc 2024; 146:13580-13587. [PMID: 38687470 DOI: 10.1021/jacs.4c03400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
CO2 reacts with simple amines in the presence of water to generate dynamic combinatorial libraries of majority (i.e., ammonium carbamates) and minority (i.e., ammonium carbonates) nonisoenergetic covalent adducts. Over the past two decades, our laboratory has reported on a new class of cavitands, namely, dyn[n]arenes, from which a polyanionic macrocycle is a highly efficient receptor for linear polyammoniums that forms [2]pseudorotaxanes in water at neutral pH. Herein, we demonstrate that the formation of [2]pseudorotaxanes shifts the equilibrium of CO2 capture by polyamines in water toward the quasi-exclusive formation of carbonate adducts, providing the first example of a switch between two competitive and reversible covalent processes triggered by host-guest interactions. In addition, this supramolecular approach to CO2 capture exhibits enhanced capture efficiency by increasing the state of protonation of complexed vs uncomplexed polyamines. Altogether, we report here that a templating approach can divert the outcome of two reversible covalent chemistries involving nucleophilic additions and acid-base reactions, challenging therefore the common knowledge that noncovalent and covalent bonds operate in separate energy frames.
Collapse
Affiliation(s)
- Titouan Chetot
- CNRS, Université Claude Bernard Lyon 1, ICBMS UMR5246, F-69622 Villeurbanne, France
| | | | - Adrien Forot
- CNRS, Université Claude Bernard Lyon 1, ICBMS UMR5246, F-69622 Villeurbanne, France
| | - Maxime Ducreux
- CNRS, Université Claude Bernard Lyon 1, ICBMS UMR5246, F-69622 Villeurbanne, France
| | - Anne Baudouin
- Université Claude Bernard Lyon 1, CCRMN, F-69622 Villeurbanne, France
| | | | - Florent Perret
- CNRS, Université Claude Bernard Lyon 1, ICBMS UMR5246, F-69622 Villeurbanne, France
| | - Laurent Vial
- CNRS, Université Claude Bernard Lyon 1, ICBMS UMR5246, F-69622 Villeurbanne, France
| | - Julien Leclaire
- CNRS, Université Claude Bernard Lyon 1, ICBMS UMR5246, F-69622 Villeurbanne, France
| |
Collapse
|
3
|
Podh MB, Ratha R, Purohit CS. Template Assisted Synthesis of Linear [5]Catenane by Post-Functionalization of Templated [2]Catenane and Using Click Reaction. Chem Asian J 2024:e202400351. [PMID: 38700467 DOI: 10.1002/asia.202400351] [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: 03/28/2024] [Revised: 05/03/2024] [Accepted: 05/03/2024] [Indexed: 05/05/2024]
Abstract
Polymers with all mechanically interlocked rings, such as linear [n]catenanes, have great potential as functional materials due to possible higher degrees of freedom that may contribute to their flexibility but remain elusive. All the synthetic methods used to prepare such a polymer yield mixtures of products. In the absence of higher molecular weight linear [n]catenanes, emphasis on synthesizing low molecular weight oligomers is being pursued. Here, we have described the synthesis of a linear [5]catenane by post-functionalizing a Co(III) templated [2]catenane having a pyridine-diamide unit free for further metal ion coordination. Two molecules were synthesized with suitable threading groups: one, two terminal azide groups, and two, with two terminal alkyne groups to form two [3]pseudorotaxane utilizing Co(III) coordination. These units were then joined, forming a macrocycle, using click reaction, giving the desired metalated linear [5]catenane in 40 % yield. Removal of metal ions leads to linear [5]catenane. In addition, the formation of linear [3] and [2]catenane are also observed. All synthesized structures have been isolated by column chromatographic technique and characterized by 1H-NMR, 13C-NMR, and mass spectroscopy.
Collapse
Affiliation(s)
- Mana Bhanjan Podh
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Jatni, Bhubaneswar, Odisha, India-, 752050
- Mana Bhanjan Podh, Radhakrishna Ratha, Chandra Shekhar Purohit, Homi Bhabha National Institute (HBNI) Mumbai, Mumbai, India-, 400094
| | - Radhakrishna Ratha
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Jatni, Bhubaneswar, Odisha, India-, 752050
- Mana Bhanjan Podh, Radhakrishna Ratha, Chandra Shekhar Purohit, Homi Bhabha National Institute (HBNI) Mumbai, Mumbai, India-, 400094
| | - Chandra Shekhar Purohit
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Jatni, Bhubaneswar, Odisha, India-, 752050
- Mana Bhanjan Podh, Radhakrishna Ratha, Chandra Shekhar Purohit, Homi Bhabha National Institute (HBNI) Mumbai, Mumbai, India-, 400094
| |
Collapse
|
4
|
Cougnon FBL, Stefankiewicz AR, Ulrich S. Dynamic covalent synthesis. Chem Sci 2024; 15:879-895. [PMID: 38239698 PMCID: PMC10793650 DOI: 10.1039/d3sc05343a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 12/10/2023] [Indexed: 01/22/2024] Open
Abstract
Dynamic covalent synthesis aims to precisely control the assembly of simple building blocks linked by reversible covalent bonds to generate a single, structurally complex, product. In recent years, considerable progress in the programmability of dynamic covalent systems has enabled easy access to a broad range of assemblies, including macrocycles, shape-persistent cages, unconventional foldamers and mechanically-interlocked species (catenanes, knots, etc.). The reversibility of the covalent linkages can be either switched off to yield stable, isolable products or activated by specific physico-chemical stimuli, allowing the assemblies to adapt and respond to environmental changes in a controlled manner. This activatable dynamic property makes dynamic covalent assemblies particularly attractive for the design of complex matter, smart chemical systems, out-of-equilibrium systems, and molecular devices.
Collapse
Affiliation(s)
- Fabien B L Cougnon
- Department of Chemistry and Nanoscience Centre, University of Jyväskylä Jyväskylä Finland
| | - Artur R Stefankiewicz
- Centre for Advanced Technology and Faculty of Chemistry, Adam Mickiewicz University Poznań Poland
| | - Sébastien Ulrich
- Institut des Biomolécules Max Mousseron (IBMM), Université de Montpellier, CNRS, ENSCM Montpellier France
| |
Collapse
|
5
|
Baby Sainaba A, Venkateswarulu M, Bhandari P, Clegg JK, Sarathi Mukherjee P. Self-Assembly of an [M 8 L2 4 ] 16+ Intertwined Cube and a Giant [M 12 L1 6 ] 24+ Orthobicupola. Angew Chem Int Ed Engl 2024; 63:e202315572. [PMID: 37985377 DOI: 10.1002/anie.202315572] [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: 10/16/2023] [Revised: 11/16/2023] [Accepted: 11/17/2023] [Indexed: 11/22/2023]
Abstract
Through coordination-driven self-assembly, aesthetically captivating structures can be formed by tuning the length or flexibility of various components. The self-assembly of an elongated rigid terphenyl-based tetra-pyridyl ligand (L1) with a cis-Pd(II) acceptor produces an [M12 L16 ]24+ triangular orthobicupola structure (1). When flexibility is introduced into the ligand by the incorporation of a -CH2 - group between the dipyridylamine and terphenyl rings in the ligand (L2), anunique [M8 L24 ]16+ water-soluble 'intertwined cubic structure' (2) results. The inherent flexibility of ligand L2 might be the key factor behind the formation of the thermodynamically stable and 'intertwined cubic structure' in this scenario. This research showcases the ability to design and fabricate novel, topologically distinctive molecular structures by a straightforward and efficient approach.
Collapse
Affiliation(s)
- Arppitha Baby Sainaba
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560012, India
| | - Mangili Venkateswarulu
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560012, India
| | - Pallab Bhandari
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560012, India
| | - Jack K Clegg
- School of Chemistry and Molecular Biosciences, The University of Queensland-St. Lucia, St. Lucia, Queensland 4072, Australia
| | - Partha Sarathi Mukherjee
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560012, India
| |
Collapse
|
6
|
Henriksen HC, Sowers AJ, Travis CR, Vulpis TD, Cope TA, Ouslander SK, Russell AF, Gagné MR, Pophristic V, Liu Z, Waters ML. Stimulus-Induced Relief of Intentionally Incorporated Frustration Drives Refolding of a Water-Soluble Biomimetic Foldamer. J Am Chem Soc 2023; 145:27672-27679. [PMID: 38054648 DOI: 10.1021/jacs.3c09883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
Frustrated, or nonoptimal, interactions have been proposed to be essential to a protein's ability to display responsive behavior such as allostery, conformational signaling, and signal transduction. However, the intentional incorporation of frustrated noncovalent interactions has not been explored as a design element in the field of dynamic foldamers. Here, we report the design, synthesis, characterization, and molecular dynamics simulations of the first dynamic water-soluble foldamer that, in response to a stimulus, exploits relief of frustration in its noncovalent network to structurally rearrange from a pleated to an intercalated columnar structure. Thus, relief of frustration provides the energetic driving force for structural rearrangement. This work represents a previously unexplored design element for the development of stimulus-responsive systems that has potential application to materials chemistry, synthetic biology, and molecular machines.
Collapse
Affiliation(s)
- Hanne C Henriksen
- Department of Chemistry, CB 3290, UNC Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Adam J Sowers
- Department of Chemistry, CB 3290, UNC Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Christopher R Travis
- Department of Chemistry, CB 3290, UNC Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Troy D Vulpis
- Department of Chemistry, CB 3290, UNC Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Thomas A Cope
- Department of Chemistry, CB 3290, UNC Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Sarah K Ouslander
- Department of Chemistry, CB 3290, UNC Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Alexander F Russell
- Department of Chemistry, CB 3290, UNC Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Michel R Gagné
- Department of Chemistry, CB 3290, UNC Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Vojislava Pophristic
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, New Jersey 08028-1701 , United States
| | - Zhiwei Liu
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, New Jersey 08028-1701 , United States
| | - Marcey L Waters
- Department of Chemistry, CB 3290, UNC Chapel Hill, Chapel Hill, North Carolina 27599, United States
| |
Collapse
|
7
|
Pairault N, Rizzi F, Lozano D, Jamieson EMG, Tizzard GJ, Goldup SM. A catenane that is topologically achiral despite being composed of oriented rings. Nat Chem 2023:10.1038/s41557-023-01194-1. [PMID: 37169983 DOI: 10.1038/s41557-023-01194-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 03/28/2023] [Indexed: 05/13/2023]
Abstract
Catenanes-molecules comprising two interlocking rings held together like links in a chain-are topologically non-trivial: a catenane is a topological isomer of its separated rings, but the rings cannot be disconnected without bond scission. Catenanes can exist as topological enantiomers if both rings have directionality conferred by a defined atom sequence, but this has led to the assumption that the stereochemistry of chiral catenanes composed of oriented rings is inherently topological in nature. Here we show that this assumption is incorrect by synthesizing an example that contains the same fundamental stereogenic unit but whose stereochemistry is Euclidean. One ring in this chiral catenane is oriented by the geometry of an exocyclic double rather than determined by atom sequence within the ring. Isomerization of the exocyclic double bond results in racemization of the catenane, confirming that the stereochemistry is not topological in nature. Thus, we can unite the stereochemistry of catenanes with that of their topologically trivial cousins, the rotaxanes, enabling a more unified approach to their discussion.
Collapse
Affiliation(s)
- Noel Pairault
- School of Chemistry, University of Southampton, Southampton, UK
| | - Federica Rizzi
- School of Chemistry, University of Southampton, Southampton, UK
| | - David Lozano
- School of Chemistry, University of Southampton, Southampton, UK
| | | | | | - Stephen M Goldup
- School of Chemistry, University of Southampton, Southampton, UK.
- School of Chemistry, University of Birmingham, Birmingham, UK.
| |
Collapse
|
8
|
Chen X, Chen H, Fraser Stoddart J. The Story of the Little Blue Box: A Tribute to Siegfried Hünig. Angew Chem Int Ed Engl 2023; 62:e202211387. [PMID: 36131604 PMCID: PMC10099103 DOI: 10.1002/anie.202211387] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Indexed: 02/02/2023]
Abstract
The tetracationic cyclophane, cyclobis(paraquat-p-phenylene), also known as the little blue box, constitutes a modular receptor that has facilitated the discovery of many host-guest complexes and mechanically interlocked molecules during the past 35 years. Its versatility in binding small π-donors in its tetracationic state, as well as forming trisradical tricationic complexes with viologen radical cations in its doubly reduced bisradical dicationic state, renders it valuable for the construction of various stimuli-responsive materials. Since the first reports in 1988, the little blue box has been featured in over 500 publications in the literature. All this research activity would not have been possible without the seminal contributions carried out by Siegfried Hünig, who not only pioneered the syntheses of viologen-containing cyclophanes, but also revealed their rich redox chemistry in addition to their ability to undergo intramolecular π-dimerization. This Review describes how his pioneering research led to the design and synthesis of the little blue box, and how this redox-active host evolved into the key component of molecular shuttles, switches, and machines.
Collapse
Affiliation(s)
- Xiao‐Yang Chen
- Department of ChemistryNorthwestern University2145 Sheridan RoadEvanstonIllinois 60208USA
| | - Hongliang Chen
- Stoddart Institute of Molecular ScienceDepartment of ChemistryZhejiang UniversityHangzhou310027China
- ZJU-Hangzhou Global Scientific and Technological Innovation CenterHangzhou311215China
| | - J. Fraser Stoddart
- Department of ChemistryNorthwestern University2145 Sheridan RoadEvanstonIllinois 60208USA
- Stoddart Institute of Molecular ScienceDepartment of ChemistryZhejiang UniversityHangzhou310027China
- ZJU-Hangzhou Global Scientific and Technological Innovation CenterHangzhou311215China
- School of ChemistryUniversity of New South WalesSydneyNSW 2052Australia
| |
Collapse
|
9
|
Feng HN, Sun Z, Chen S, Zhang ZH, Li Z, Zhong Z, Sun T, Ma Y, Zhang L. A Star of David [2]catenane of single handedness. Chem 2022. [DOI: 10.1016/j.chempr.2022.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
|
10
|
The synthesis and near-infrared photothermal conversion of organometallic interdigitated complex and “U” type macrocycles. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
11
|
Walker CC, Fobe TL, Shirts MR. How Cooperatively Folding Are Homopolymer Molecular Knots? Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Christopher C. Walker
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80303 United States
| | - Theodore L. Fobe
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80303 United States
| | - Michael R. Shirts
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80303 United States
| |
Collapse
|
12
|
Ashbridge Z, Fielden SDP, Leigh DA, Pirvu L, Schaufelberger F, Zhang L. Knotting matters: orderly molecular entanglements. Chem Soc Rev 2022; 51:7779-7809. [PMID: 35979715 PMCID: PMC9486172 DOI: 10.1039/d2cs00323f] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Indexed: 11/29/2022]
Abstract
Entangling strands in a well-ordered manner can produce useful effects, from shoelaces and fishing nets to brown paper packages tied up with strings. At the nanoscale, non-crystalline polymer chains of sufficient length and flexibility randomly form tangled mixtures containing open knots of different sizes, shapes and complexity. However, discrete molecular knots of precise topology can also be obtained by controlling the number, sequence and stereochemistry of strand crossings: orderly molecular entanglements. During the last decade, substantial progress in the nascent field of molecular nanotopology has been made, with general synthetic strategies and new knotting motifs introduced, along with insights into the properties and functions of ordered tangle sequences. Conformational restrictions imparted by knotting can induce allostery, strong and selective anion binding, catalytic activity, lead to effective chiral expression across length scales, binding modes in conformations efficacious for drug delivery, and facilitate mechanical function at the molecular level. As complex molecular topologies become increasingly synthetically accessible they have the potential to play a significant role in molecular and materials design strategies. We highlight particular examples of molecular knots to illustrate why these are a few of our favourite things.
Collapse
Affiliation(s)
- Zoe Ashbridge
- Department of Chemistry, The University of Manchester, Manchester, UK
| | | | - David A Leigh
- Department of Chemistry, The University of Manchester, Manchester, UK
- School of Chemistry and Molecular Engineering, East China Normal University, 3663 N Zhongshan Road, Shanghai, China
| | - Lucian Pirvu
- Department of Chemistry, The University of Manchester, Manchester, UK
| | | | - Liang Zhang
- Department of Chemistry, The University of Manchester, Manchester, UK
- School of Chemistry and Molecular Engineering, East China Normal University, 3663 N Zhongshan Road, Shanghai, China
| |
Collapse
|
13
|
Guo F, Wu J, Yang Z, Li K, Zhang L. Penetration of linear chains into semiflexible knotted rings in linear-ring blends. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
|
14
|
Ma L, Li Y, Li X, Zhang L, Sun L, Han Y. A Molecular “
A
‐Type” Tangled Metallocube. Angew Chem Int Ed Engl 2022; 61:e202208376. [DOI: 10.1002/anie.202208376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Li‐Li Ma
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Yang Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Xin Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Le Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Li‐Ying Sun
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Ying‐Feng Han
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| |
Collapse
|
15
|
Ma LL, Li Y, Li X, Zhang L, Sun LY, Han YF. A Molecular “A‐Type” Tangled Metallocube. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Li-Li Ma
- Northwest University College of Chemistry and Materials Science 1 Xuefu Ave., Guodu Education and Hi-Tech Industries Zone, Chang’an District 710127 CHINA
| | - Yang Li
- Northwest University College of Chemistry and Materials Science 1 Xuefu Ave., Guodu Education and Hi-Tech Industries Zone, Chang’an District 710127 CHINA
| | - Xin Li
- Northwest University College of Chemistry and Materials Science 1 Xuefu Ave., Guodu Education and Hi-Tech Industries Zone, Chang’an District 710127 CHINA
| | - Le Zhang
- Northwest University College of Chemistry and Materials Science 1 Xuefu Ave., Guodu Education and Hi-Tech Industries Zone, Chang’an District 710127 CHINA
| | - Li-Ying Sun
- Northwest University College of Chemistry and Materials Science 1 Xuefu Ave., Guodu Education and Hi-Tech Industries Zone, Chang’an District 710127 CHINA
| | - Ying-Feng Han
- Northwest University College of Chemistry and Materials Science 1 Xuefu Ave., Guodu Education and Hi-Tech Industries Zone, Chang’an District 710127 Xi'an CHINA
| |
Collapse
|
16
|
Rodríguez-Rubio A, Savoini A, Modicom F, Butler P, Goldup SM. A Co-conformationally "Topologically" Chiral Catenane. J Am Chem Soc 2022; 144:11927-11932. [PMID: 35763555 PMCID: PMC9348828 DOI: 10.1021/jacs.2c02029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Catenanes composed of two achiral rings that are oriented (Cnh symmetry) because of the sequence of atoms they contain are referred to as topologically chiral. Here, we present the synthesis of a highly enantioenriched catenane containing a related but overlooked "co-conformationally 'topologically' chiral" stereogenic unit, which arises when a bilaterally symmetric Cnv ring is desymmetrized by the position of an oriented macrocycle.
Collapse
Affiliation(s)
- Arnau Rodríguez-Rubio
- Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
| | - Andrea Savoini
- Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
| | - Florian Modicom
- Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
| | - Patrick Butler
- Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
| | - Stephen M Goldup
- Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
| |
Collapse
|
17
|
Orrillo AG, Furlan RLE. Sulfur in Dynamic Covalent Chemistry. Angew Chem Int Ed Engl 2022; 61:e202201168. [PMID: 35447003 DOI: 10.1002/anie.202201168] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Indexed: 12/21/2022]
Abstract
Sulfur has been important in dynamic covalent chemistry (DCC) since the beginning of the field. Mainly as part of disulfides and thioesters, dynamic sulfur-based bonds (DSBs) have a leading role in several remarkable reactions. Part of this success is due to the almost ideal properties of DSBs for the preparation of dynamic covalent systems, including high reactivity and good reversibility under mild aqueous conditions, the possibility of exploiting supramolecular interactions, access to isolable structures, and easy experimental control to turn the reaction on/off. DCC is currently witnessing an increase in the importance of DSBs. The chemical flexibility offered by DSBs opens the door to multiple applications. This Review presents an overview of all the DSBs used in DCC, their applications, and remarks on the interesting properties that they confer on dynamic chemical systems, especially those containing several DSBs.
Collapse
Affiliation(s)
- A Gastón Orrillo
- Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, CONICET, Suipacha 531, Rosario, S2002LRK, Argentina
| | - Ricardo L E Furlan
- Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, CONICET, Suipacha 531, Rosario, S2002LRK, Argentina
| |
Collapse
|
18
|
Lei Y, Li Z, Wu G, Zhang L, Tong L, Tong T, Chen Q, Wang L, Ge C, Wei Y, Pan Y, Sue ACH, Wang L, Huang F, Li H. A trefoil knot self-templated through imination in water. Nat Commun 2022; 13:3557. [PMID: 35729153 PMCID: PMC9213439 DOI: 10.1038/s41467-022-31289-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 06/03/2022] [Indexed: 11/24/2022] Open
Abstract
The preparation of topologically nontrivial molecules is often assisted by covalent, supramolecular or coordinative templates that provide spatial pre-organization for all components. Herein, we report a trefoil knot that can be self-assembled efficiently in water without involving additional templates. The direct condensation of three equivalents of a tetraformyl precursor and six equivalents of a chiral diamine produces successfully a [3 + 6] trefoil knot whose intrinsic handedness is dictated by the stereochemical configuration of the diamine linkers. Contrary to the conventional wisdom that imine condensation is not amenable to use in water, the multivalent cooperativity between all the imine bonds within the framework makes this trefoil knot robust in the aqueous environment. Furthermore, the presence of water is proven to be essential for the trefoil knot formation. A topologically trivial macrocycle composed of two tetraformyl and four diamino building blocks is obtained when a similar reaction is performed in organic media, indicating that hydrophobic effect is a major driving force behind the scene.
Collapse
Affiliation(s)
- Ye Lei
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, PR China
| | - Zhaoyong Li
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, PR China
- Key Laboratory of Excited-State Materials of Zhejiang Province, Zhejiang University, Hangzhou, 310027, PR China
| | - Guangcheng Wu
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, PR China
| | - Lijie Zhang
- Hangzhou Institute of Advanced Studies, Zhejiang Normal University, Hangzhou, 311231, PR China
| | - Lu Tong
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, PR China
| | - Tianyi Tong
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, PR China
| | - Qiong Chen
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, PR China
| | - Lingxiang Wang
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, PR China
| | - Chenqi Ge
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, PR China
| | - Yuxi Wei
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, PR China
| | - Yuanjiang Pan
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, PR China
| | - Andrew C-H Sue
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, PR China.
| | - Linjun Wang
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, PR China.
- Key Laboratory of Excited-State Materials of Zhejiang Province, Zhejiang University, Hangzhou, 310027, PR China.
| | - Feihe Huang
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, PR China.
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, 310027, PR China.
| | - Hao Li
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, PR China.
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, 310027, PR China.
| |
Collapse
|
19
|
Orrillo AG, Furlan RLE. Sulfur in Dynamic Covalent Chemistry. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Alfredo Gastón Orrillo
- Universidad Nacional de Rosario Facultad de Ciencias Bioquimicas y Farmaceuticas Organic Chemistry Suipacha 530 2000 Rosario ARGENTINA
| | - Ricardo L. E. Furlan
- Universidad Nacional de Rosario Facultad de Ciencias Bioquimicas y Farmaceuticas Organic Chemistry Suipacha 530 2000 Rosario ARGENTINA
| |
Collapse
|
20
|
Au-Yeung HY, Deng Y. Distinctive features and challenges in catenane chemistry. Chem Sci 2022; 13:3315-3334. [PMID: 35432874 PMCID: PMC8943846 DOI: 10.1039/d1sc05391d] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 02/04/2022] [Indexed: 11/21/2022] Open
Abstract
From being an aesthetic molecular object to a building block for the construction of molecular machines, catenanes and related mechanically interlocked molecules (MIMs) continue to attract immense interest in many research areas. Catenane chemistry is closely tied to that of rotaxanes and knots, and involves concepts like mechanical bonds, chemical topology and co-conformation that are unique to these molecules. Yet, because of their different topological structures and mechanical bond properties, there are some fundamental differences between the chemistry of catenanes and that of rotaxanes and knots although the boundary is sometimes blurred. Clearly distinguishing these differences, in aspects of bonding, structure, synthesis and properties, between catenanes and other MIMs is therefore of fundamental importance to understand their chemistry and explore the new opportunities from mechanical bonds.
Collapse
Affiliation(s)
- Ho Yu Au-Yeung
- Department of Chemistry, The University of Hong Kong Pokfulam Road Hong Kong P. R. China
- State Key Laboratory of Synthetic Chemistry, The University of Hong Kong Pokfulam Road Hong Kong P. R. China
| | - Yulin Deng
- Department of Chemistry, The University of Hong Kong Pokfulam Road Hong Kong P. R. China
| |
Collapse
|
21
|
Zhao X, Wang H, Li B, Zhang W, Li X, Zhao W, Janiak C, Heard AW, Yang X, Wu B. A Hydrogen‐Bonded Ravel Assembled by Anion Coordination. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115042] [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)
- Xiaotong Zhao
- College of Chemistry and Materials Science Northwest University Xi'an 710069 China
| | - Heng Wang
- College of Chemistry and Environmental Engineering Shenzhen University Shenzhen 518055 China
| | - Boyang Li
- College of Chemistry and Materials Science Northwest University Xi'an 710069 China
| | - Wenyao Zhang
- College of Chemistry and Materials Science Northwest University Xi'an 710069 China
| | - Xiaopeng Li
- College of Chemistry and Environmental Engineering Shenzhen University Shenzhen 518055 China
| | - Wei Zhao
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing 102488 China
| | - Christoph Janiak
- Institut für Anorganische Chemie und Strukturchemie Heinrich-Heine-Universität Düsseldorf 40204 Düsseldorf Germany
| | - Andrew W. Heard
- Department of Chemistry University of Cambridge Cambridge UK
| | - Xiao‐Juan Yang
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing 102488 China
| | - Biao Wu
- College of Chemistry and Materials Science Northwest University Xi'an 710069 China
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing 102488 China
| |
Collapse
|
22
|
Konopka M, Stefankiewicz AR. Expanding structural diversity in a library of disulfide macrocycles through in-situ imide hydrolysis. Sci Rep 2022; 12:38. [PMID: 34997018 PMCID: PMC8742088 DOI: 10.1038/s41598-021-03944-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 12/13/2021] [Indexed: 02/05/2023] Open
Abstract
We describe here an unorthodox approach to dynamic covalent chemistry in which the initially-unexpected in-situ hydrolysis of a bis-imide is employed to control the composition of a library of structurally diverse macrocycles. A single building block is used to generate a library of numerous disulfide-based architectures in a one-pot single-step process. The dual-stimuli method is based on simultaneous changes in pH and DMSO concentration to expand the structural diversity of the macrocyclic products. Mechanistic details of this complex process are investigated by the kinetics analysis. We delivered a facile strategy for the synthesis of water-soluble, multicomponent and dynamic macrocycles equipped with number of different functional groups, thus giving a prospect of their application in guest-driven phase transfer.
Collapse
Affiliation(s)
- Marcin Konopka
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland
- Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, 61-614, Poznań, Poland
| | - Artur R Stefankiewicz
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland.
- Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, 61-614, Poznań, Poland.
| |
Collapse
|
23
|
Dang LL, Li TT, Cui Z, Sui D, Ma LF, Jin GX. Selective construction and stability studies of a molecular trefoil knot and Solomon link. Dalton Trans 2021; 50:16984-16989. [PMID: 34612256 DOI: 10.1039/d1dt02755g] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Two novel compounds, a molecular trefoil knot and a Solomon link, were constructed successfully through the cooperation of multiple π-π stacking interactions. A reversible transformation between the trefoil knot and the corresponding [2 + 2] macrocycle could be achieved by solvent- and guest-induced effects. However, the Solomon link maintains its stability in different concentrations, solvents and guest molecules. Single-crystal X-ray crystallographic data, NMR spectroscopic experiments and ESI-MS support the synthesis and structural assignments. These synthesis methods open the door to the further development of smart materials, which will push the advancement of rational design of biomaterials.
Collapse
Affiliation(s)
- Li-Long Dang
- College of Chemistry and Chemical Engineering, Henan Province Function-Oriented Porous Materials Key Laboratory, Luoyang Normal University, Luoyang 471934, P. R. China.
| | - Ting-Ting Li
- College of Chemistry and Chemical Engineering, Henan Province Function-Oriented Porous Materials Key Laboratory, Luoyang Normal University, Luoyang 471934, P. R. China. .,College of Chemistry and Bioengineering (Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials), Guilin University of Technology, Guilin 541004, P. R. China
| | - Zheng Cui
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Department of Chemistry, Fudan University, Shanghai 200438, P. R. China.
| | - Dong Sui
- College of Chemistry and Chemical Engineering, Henan Province Function-Oriented Porous Materials Key Laboratory, Luoyang Normal University, Luoyang 471934, P. R. China.
| | - Lu-Fang Ma
- College of Chemistry and Chemical Engineering, Henan Province Function-Oriented Porous Materials Key Laboratory, Luoyang Normal University, Luoyang 471934, P. R. China.
| | - Guo-Xin Jin
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Department of Chemistry, Fudan University, Shanghai 200438, P. R. China.
| |
Collapse
|
24
|
Zhao X, Wang H, Li B, Zhang W, Li X, Zhao W, Janiak C, Heard AW, Yang XJ, Wu B. A Hydrogen-Bonded Ravel Assembled by Anion Coordination. Angew Chem Int Ed Engl 2021; 61:e202115042. [PMID: 34850515 DOI: 10.1002/anie.202115042] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Indexed: 11/08/2022]
Abstract
Anion-coordination-driven assembly (ACDA) is showing increasing power in the construction of anionic supramolecular architectures. Herein, by expanding the anion centers from oxoanion (phosphate or sulfate) to organic tris-carboxylates, an Archimedean solid (truncated tetrahedron) and a highly entangled, double-walled tetrahedron featuring a ravel topology have been assembled with tris-bis(urea) ligands. The results demonstrate the promising ability of tris-carboxylates as new anion coordination centers in constructing novel topologies with increasing complexity and diversity compared to phosphate or sulfate ions on account of the modifiable size and easy functionalization character of these organic anions.
Collapse
Affiliation(s)
- Xiaotong Zhao
- College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, China
| | - Heng Wang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518055, China
| | - Boyang Li
- College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, China
| | - Wenyao Zhang
- College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, China
| | - Xiaopeng Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518055, China
| | - Wei Zhao
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, China
| | - Christoph Janiak
- Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, 40204, Düsseldorf, Germany
| | - Andrew W Heard
- Department of Chemistry, University of Cambridge, Cambridge, UK
| | - Xiao-Juan Yang
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, China
| | - Biao Wu
- College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, China.,Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, China
| |
Collapse
|
25
|
Affiliation(s)
- Arthur H. G. David
- Department of Chemistry Northwestern University Evanston Illinois 60208 United States
| | - J. Fraser Stoddart
- Department of Chemistry Northwestern University Evanston Illinois 60208 United States
- School of Chemistry University of New South Wales Sydney NSW 2052 Australia
- Stoddart Institute of Molecular Science Department of Chemistry Zhejiang University Hangzhou 310021 China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center Hangzhou 311215 China
| |
Collapse
|
26
|
O'Keeffe M, Treacy MMJ. Piecewise-linear embeddings of knots and links with rotoinversion symmetry. Acta Crystallogr A Found Adv 2021; 77:392-398. [PMID: 34473094 DOI: 10.1107/s2053273321006136] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Accepted: 06/11/2021] [Indexed: 11/10/2022] Open
Abstract
This article describes the simplest members of an infinite family of knots and links that have achiral piecewise-linear embeddings in which linear segments (sticks) meet at corners. The structures described are all corner- and stick-2-transitive - the smallest possible for achiral knots.
Collapse
Affiliation(s)
- Michael O'Keeffe
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, USA
| | - Michael M J Treacy
- Department of Physics, Arizona State University, Tempe, Arizona 85287, USA
| |
Collapse
|
27
|
Komáromy D, Tiemersma-Wegman T, Kemmink J, Portale G, Adamski PR, Blokhuis A, Aalbers FS, Marić I, Santiago GM, Ottelé J, Sood A, Saggiomo V, Liu B, van der Meulen P, Otto S. Stoichiometry alone can steer supramolecular systems on complex free energy surfaces with high selectivity. Chem 2021. [DOI: 10.1016/j.chempr.2021.05.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
28
|
Carpenter JP, McTernan CT, Greenfield JL, Lavendomme R, Ronson TK, Nitschke JR. Controlling the shape and chirality of an eight-crossing molecular knot. Chem 2021. [DOI: 10.1016/j.chempr.2021.03.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
29
|
Jiao T, Qu H, Tong L, Cao X, Li H. A Self‐Assembled Homochiral Radical Cage with Paramagnetic Behaviors. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100655] [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)
- Tianyu Jiao
- Department of Chemistry Zhejiang University Hangzhou 310027 P. R. China
| | - Hang Qu
- State Key Laboratory of Physical Chemistry of Solid Surfaces iChEM and College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Lu Tong
- Department of Chemistry Zhejiang University Hangzhou 310027 P. R. China
| | - Xiaoyu Cao
- State Key Laboratory of Physical Chemistry of Solid Surfaces iChEM and College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Hao Li
- Department of Chemistry Zhejiang University Hangzhou 310027 P. R. China
| |
Collapse
|
30
|
Wagner P, Rominger F, Zhang W, Gross JH, Elbert SM, Schröder RR, Mastalerz M. Chiral Self-sorting of Giant Cubic [8+12] Salicylimine Cage Compounds. Angew Chem Int Ed Engl 2021; 60:8896-8904. [PMID: 33476442 PMCID: PMC8048989 DOI: 10.1002/anie.202016592] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/21/2021] [Indexed: 12/13/2022]
Abstract
Chiral self-sorting is intricately connected to the complicated chiral processes observed in nature and no artificial systems of comparably complexity have been generated by chemists. However, only a few examples of purely organic molecules have been reported so far, where the self-sorting process could be controlled. Herein, we describe the chiral self-sorting of large cubic [8+12] salicylimine cage compounds based on a chiral TBTQ precursor. Out of 23 possible cage isomers only the enantiopure and a meso cage were observed to be formed, which have been unambiguously characterized by single crystal X-ray diffraction. Furthermore, by careful choice of solvent the formation of meso cage could be controlled. With internal diameters of din =3.3-3.5 nm these cages are among the largest organic cage compounds characterized and show very high specific surface areas up to approx. 1500 m2 g-1 after desolvation.
Collapse
Affiliation(s)
- Philippe Wagner
- Organisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Frank Rominger
- Organisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Wen‐Shan Zhang
- Centre for Advanced MaterialsRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 22569120HeidelbergGermany
| | - Jürgen H. Gross
- Organisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Sven M. Elbert
- Organisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Rasmus R. Schröder
- Centre for Advanced MaterialsRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 22569120HeidelbergGermany
| | - Michael Mastalerz
- Organisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| |
Collapse
|
31
|
Jiao T, Qu H, Tong L, Cao X, Li H. A Self-Assembled Homochiral Radical Cage with Paramagnetic Behaviors. Angew Chem Int Ed Engl 2021; 60:9852-9858. [PMID: 33651476 DOI: 10.1002/anie.202100655] [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: 01/15/2021] [Revised: 02/14/2021] [Indexed: 12/24/2022]
Abstract
Condensation of an inherently C3 -symmetric polychlorotriphenylmethyl (PTM) radical trisaldehyde with tris(2-aminoethyl)amine (TREN) yields a [4+4] tetrahedral radical cage as a racemic pair of homochiral enantiomers in 75 % isolated yield. The structure was characterized by X-ray crystallography, confirming the homochirality of each cage framework. The homochirality results from intramolecular [CH⋅⋅⋅π] and hydrogen-bonding interactions within the cage framework. The four PTM radicals in a cage undergo weak through-space coupling. Magnetic measurements demonstrated that each cage bears 3.58 spins.
Collapse
Affiliation(s)
- Tianyu Jiao
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Hang Qu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Lu Tong
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Xiaoyu Cao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Hao Li
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China
| |
Collapse
|
32
|
Wagner P, Rominger F, Zhang W, Gross JH, Elbert SM, Schröder RR, Mastalerz M. Chiral Self‐sorting of Giant Cubic [8+12] Salicylimine Cage Compounds. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016592] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Philippe Wagner
- Organisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Frank Rominger
- Organisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Wen‐Shan Zhang
- Centre for Advanced Materials Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 225 69120 Heidelberg Germany
| | - Jürgen H. Gross
- Organisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Sven M. Elbert
- Organisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Rasmus R. Schröder
- Centre for Advanced Materials Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 225 69120 Heidelberg Germany
| | - Michael Mastalerz
- Organisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| |
Collapse
|
33
|
Leigh DA, Danon JJ, Fielden SDP, Lemonnier JF, Whitehead GFS, Woltering SL. A molecular endless (7 4) knot. Nat Chem 2021; 13:117-122. [PMID: 33318672 DOI: 10.1038/s41557-020-00594-x] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 10/23/2020] [Indexed: 01/30/2023]
Abstract
Current strategies for the synthesis of molecular knots focus on twisting, folding and/or threading molecular building blocks. Here we report that Zn(II) or Fe(II) ions can be used to weave ligand strands to form a woven 3 × 3 molecular grid. We found that the process requires tetrafluoroborate anions to template the assembly of the interwoven grid by binding within the square cavities formed between the metal-coordinated criss-crossed ligands. The strand ends of the grid can subsequently be joined through within-grid alkene metathesis reactions to form a topologically trivial macrocycle (unknot), a doubly interlocked [2]catenane (Solomon link) and a knot with seven crossings in a 258-atom-long closed loop. This 74 knot topology corresponds to that of an endless knot, which is a basic motif of Celtic interlace, the smallest Chinese knot and one of the eight auspicious symbols of Buddhism and Hinduism. The weaving of molecular strands within a discrete layer by anion-template metal-ion coordination opens the way for the synthesis of other molecular knot topologies and to woven polymer materials.
Collapse
Affiliation(s)
- David A Leigh
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China. .,Department of Chemistry, University of Manchester, Manchester, UK.
| | - Jonathan J Danon
- Department of Chemistry, University of Manchester, Manchester, UK
| | | | | | | | | |
Collapse
|
34
|
Song Y, Schaufelberger F, Ashbridge Z, Pirvu L, Vitorica-Yrezabal IJ, Leigh DA. Effects of turn-structure on folding and entanglement in artificial molecular overhand knots. Chem Sci 2020; 12:1826-1833. [PMID: 34163946 PMCID: PMC8179330 DOI: 10.1039/d0sc05897a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
The length and constitution of spacers linking three 2,6-pyridinedicarboxamide units in a molecular strand influence the tightness of the resulting overhand (open-trefoil) knot that the strand folds into in the presence of lanthanide(iii) ions. The use of β-hairpin forming motifs as linkers enables a metal-coordinated pseudopeptide with a knotted tertiary structure to be generated. The resulting pseudopeptide knot has one of the highest backbone-to-crossing ratios (BCR)—a measure of knot tightness (a high value corresponding to looseness)—for a synthetic molecular knot to date. Preorganization in the crossing-free turn section of the knot affects aromatic stacking interactions close to the crossing region. The metal-coordinated pseudopeptide knot is compared to overhand knots with other linkers of varying tightness and turn preorganization, and the entangled architectures characterized by NMR spectroscopy, ESI-MS, CD spectroscopy and, in one case, X-ray crystallography. The results show how it is possible to program specific conformational properties into different key regions of synthetic molecular knots, opening the way to systems where knotting can be systematically incorporated into peptide-like chains through design. Spacers linking 2,6-pyridinedicarboxamide units influence the tightness of the corresponding lanthanide-coordinated overhand knot. β-Hairpin forming motifs generate a metal-coordinated pseudopeptide with a knotted tertiary structure.![]()
Collapse
Affiliation(s)
- Yiwei Song
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University Shanghai 200062 PR China
| | | | - Zoe Ashbridge
- Department of Chemistry, University of Manchester Oxford Road Manchester M13 9PL UK
| | - Lucian Pirvu
- Department of Chemistry, University of Manchester Oxford Road Manchester M13 9PL UK
| | | | - David A Leigh
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University Shanghai 200062 PR China .,Department of Chemistry, University of Manchester Oxford Road Manchester M13 9PL UK
| |
Collapse
|
35
|
|
36
|
|
37
|
Chen XY, Shen D, Cai K, Jiao Y, Wu H, Song B, Zhang L, Tan Y, Wang Y, Feng Y, Stern CL, Stoddart JF. Suit[3]ane. J Am Chem Soc 2020; 142:20152-20160. [PMID: 33180476 DOI: 10.1021/jacs.0c09896] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Suitanes are a class of mechanically interlocked molecules (MIMs) that consist of two components: a body with limbs protruding outward and a suit that fits appropriately around it, so that there is no easy way for the suit to be removed from the body. Herein, we report the synthesis and characterization of a suit[3]ane, which contains a benzotrithiophene derivative (THBTT) with three protruding hexyl chains as the body and a 3-fold symmetric, extended pyridinium-based cage, namely, HexaCage6+, as the suit. Central to its realization is effective templation, provided by THBTT during cage formation, an observation that has been supported by the strong binding constant between benzotrithiophene (BTT) and the empty cage. The solid-state structure of the suit[3]ane reveals that the body is confined within the suit's cavity with its alkyl chains protruding outward through the orifices in the cage. Notably, such a seemingly unstable molecule, having three flexible alkyl chains as its only protruding limbs, does not dissociate after prolonged heating in CD3CN at 100 °C under pressure for 7 days. No evidence for guest exchange with the host was observed at this temperature in a 2:1 mixture of THBTT and HexaCage6+ in CD3CN. The results indicate that flexible protruding limbs are sufficient for a suit[3]ane to remain mechanically stable even at high temperatures in solution.
Collapse
Affiliation(s)
- Xiao-Yang Chen
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Dengke Shen
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - Kang Cai
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yang Jiao
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Huang Wu
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Bo Song
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Long Zhang
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yu Tan
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yu Wang
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yuanning Feng
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Charlotte L Stern
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - J Fraser Stoddart
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
| |
Collapse
|
38
|
Kimura T, Miyagawa S, Takaya H, Naito M, Tokunaga Y. Locking the Dynamic Axial Chirality of Biphenyl Crown Ethers through Threading. Chem Asian J 2020; 15:3897-3903. [PMID: 33026146 DOI: 10.1002/asia.202001046] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/26/2020] [Indexed: 12/17/2022]
Abstract
This paper describes the syntheses of [2]rotaxanes comprising 23- and 26-membered biphenyl crown ethers as the macrocyclic components and secondary ammonium ions as the dumbbell-shaped components, and the locking of the dynamic axial chirality of the biphenyl moieties in these structures. Chiral high-performance liquid chromatography (HPLC) revealed that our [2]rotaxane featuring the 26-membered crown ether racemized at room temperature, but the racemization of the [2]rotaxane featuring the 23-membered crown ether did not proceed at room temperature over a period of three days. After separation of the enantiomers of the [2]rotaxane incorporating the 23-membered crown ether through chiral HPLC, we studied its racemization at elevated temperature. The rate of stereoinversion in dimethylsulfoxide (a polar solvent) was faster than that in o-dichlorobenzene (a nonpolar solvent), and herein we discuss these kinetic parameters.
Collapse
Affiliation(s)
- Tomoya Kimura
- Department of Materials Science and Engineering, Faculty of Engineering, University of Fukui, Bunkyo, Fukui, 910-8507, Japan
| | - Shinobu Miyagawa
- Department of Materials Science and Engineering, Faculty of Engineering, University of Fukui, Bunkyo, Fukui, 910-8507, Japan
| | - Hikaru Takaya
- International Research Center for Elements Science, Institute for Chemical Research, Kyoto University, Uji, 611-0011, Japan.,Institute for Molecular Science, National Institute of Natural Science, Okazaki, 444-8585, Japan
| | - Masaya Naito
- Department of Materials Science and Engineering, Faculty of Engineering, University of Fukui, Bunkyo, Fukui, 910-8507, Japan
| | - Yuji Tokunaga
- Department of Materials Science and Engineering, Faculty of Engineering, University of Fukui, Bunkyo, Fukui, 910-8507, Japan
| |
Collapse
|
39
|
Abstract
The properties of knots are exploited in a range of applications, from shoelaces to the knots used for climbing, fishing and sailing1. Although knots are found in DNA and proteins2, and form randomly in other long polymer chains3,4, methods for tying5 different sorts of knots in a synthetic nanoscale strand are lacking. Molecular knots of high symmetry have previously been synthesized by using non-covalent interactions to assemble and entangle molecular chains6-15, but in such instances the template and/or strand structure intrinsically determines topology, which means that only one type of knot is usually possible. Here we show that interspersing coordination sites for different metal ions within an artificial molecular strand enables it to be tied into multiple knots. Three topoisomers-an unknot (01) macrocycle, a trefoil (31) knot6-15, and a three-twist (52) knot-were each selectively prepared from the same molecular strand by using transition-metal and lanthanide ions to guide chain folding in a manner reminiscent of the action of protein chaperones16. We find that the metal-ion-induced folding can proceed with stereoinduction: in the case of one knot, a lanthanide(III)-coordinated crossing pattern formed only with a copper(I)-coordinated crossing of particular handedness. In an unanticipated finding, metal-ion coordination was also found to translocate an entanglement from one region of a knotted molecular structure to another, resulting in an increase in writhe (topological strain) in the new knotted conformation. The knot topology affects the chemical properties of the strand: whereas the tighter 52 knot can bind two different metal ions simultaneously, the looser 31 isomer can bind only either one copper(I) ion or one lutetium(III) ion. The ability to tie nanoscale chains into different knots offers opportunities to explore the modification of the structure and properties of synthetic oligomers, polymers and supramolecules.
Collapse
|
40
|
Affiliation(s)
- J Fraser Stoddart
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
- Institute for Molecular Design and Synthesis, Tianjin University, 92 Weijin Road, Nankai Districts, Tianjin 300072, P. R. China
| |
Collapse
|
41
|
|
42
|
Cui Z, Lu Y, Gao X, Feng HJ, Jin GX. Stereoselective Synthesis of a Topologically Chiral Solomon Link. J Am Chem Soc 2020; 142:13667-13671. [DOI: 10.1021/jacs.0c05366] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Zheng Cui
- State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, People’s Republic of China
| | - Ye Lu
- State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, People’s Republic of China
| | - Xiang Gao
- State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, People’s Republic of China
| | - Hui-Jun Feng
- State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, People’s Republic of China
| | - Guo-Xin Jin
- State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, People’s Republic of China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People’s Republic of China
| |
Collapse
|
43
|
Gianga TM, Pantoș GD. Structurally divergent dynamic combinatorial chemistry on racemic mixtures. Nat Commun 2020; 11:3528. [PMID: 32669543 PMCID: PMC7363883 DOI: 10.1038/s41467-020-17321-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 06/16/2020] [Indexed: 11/09/2022] Open
Abstract
Structurally Divergent Reactions on Racemic Mixtures are atypical processes in Nature. The few examples reported in the literature take place in organic solvents and are driven by the reagents’ interaction with bulky chiral catalysts. Herein, we describe a dynamic combinatorial approach to generate structural divergence from racemic building blocks. The divergence is due to a stereospecific electron-donor – electron-acceptor interaction of diastereomeric macrocycles, leading to structurally distinct pseudorotaxanes. The equilibrated dynamic combinatorial library contains, amongst various macrocycles, two different types of [2]catenanes that are non-isomeric. The formation of these [2]catenanes is due to a spontaneous stereo and structurally divergent assembly of the building blocks. Structurally divergent reactions on racemic mixtures, which produce distinct chemical species from an enantiomeric mixture, are extremely rare in the literature. Here, the authors are able to use a dynamic combinatorial approach to yield structurally divergent, non-isomeric [2]catenanes from an enantiomeric mixture.
Collapse
Affiliation(s)
- Tiberiu-M Gianga
- Department of Chemistry, University of Bath, Bath, BA2 7AY, UK.,Beamline B23, Diamond Light Source, Ltd., Chilton, Didcot, OX11 0DE, UK
| | - G Dan Pantoș
- Department of Chemistry, University of Bath, Bath, BA2 7AY, UK.
| |
Collapse
|
44
|
Dang LL, Gao X, Lin YJ, Jin GX. Selective synthesis and structural transformation between a molecular ring-in-ring architecture and an abnormal trefoil knot. Chem Sci 2020; 11:8013-8019. [PMID: 34094170 PMCID: PMC8163296 DOI: 10.1039/d0sc02733b] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 07/15/2020] [Indexed: 11/21/2022] Open
Abstract
The synthesis of complicated supramolecular architectures and the study of their reversible structural transformations remains a fascinating challenge in the field of supramolecular chemistry. Herein, two types of novel coordination compounds, a non-intertwined ring-in-ring assembly and an abnormal trefoil knot were constructed from a strategically selected Cp*Rh building block and a semi-rigid N,N'-bis(4-pyridylmethyl)diphthalic diimide ligand via coordination-driven self-assembly. Remarkably, the reversible transformation between the abnormal trefoil knot and the ring-in-ring assembly or the corresponding tetranuclear macrocycle could be achieved by the synergistic effects of Ag+ ion coordination and alteration of the solvent. Single-crystal X-ray crystallographic data and NMR spectroscopic experiments support the structural assignments.
Collapse
Affiliation(s)
- Li-Long Dang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University Shanghai 200438 P. R. China
| | - Xiang Gao
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University Shanghai 200438 P. R. China
| | - Yue-Jian Lin
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University Shanghai 200438 P. R. China
| | - Guo-Xin Jin
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University Shanghai 200438 P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences Shanghai 200032 P. R. China
| |
Collapse
|
45
|
Scalvini B, Sheikhhassani V, Woodard J, Aupič J, Dame RT, Jerala R, Mashaghi A. Topology of Folded Molecular Chains: From Single Biomolecules to Engineered Origami. TRENDS IN CHEMISTRY 2020. [DOI: 10.1016/j.trechm.2020.04.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
46
|
Gao WX, Feng HJ, Guo BB, Lu Y, Jin GX. Coordination-Directed Construction of Molecular Links. Chem Rev 2020; 120:6288-6325. [PMID: 32558562 DOI: 10.1021/acs.chemrev.0c00321] [Citation(s) in RCA: 165] [Impact Index Per Article: 41.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Since the emergence of the concept of chemical topology, interlocked molecular assemblies have graduated from academic curiosities and poorly defined species to become synthetic realities. Coordination-directed synthesis provides powerful, diverse, and increasingly sophisticated protocols for accessing interlocked molecules. Originally, metal ions were employed solely as templates to gather and position building blocks in entwined or threaded arrangements. Recently, metal centers have increasingly featured within the backbones of the integral structural elements, which in turn use noncovalent interactions to self-assemble into intricate topologies. By outlining ingenious recent examples as well as seminal classic cases, this Review focuses on the role of metal-ligand paradigms in assembling molecular links. In addition, the ever-evolving approaches to efficient assembly, the structural features of the resulting architectures, and their prospects for the future are also presented.
Collapse
Affiliation(s)
- Wen-Xi Gao
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Department of Chemistry, Fudan University, Shanghai 200433, P. R. China
| | - Hui-Jun Feng
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Department of Chemistry, Fudan University, Shanghai 200433, P. R. China
| | - Bei-Bei Guo
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Department of Chemistry, Fudan University, Shanghai 200433, P. R. China
| | - Ye Lu
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Department of Chemistry, Fudan University, Shanghai 200433, P. R. China
| | - Guo-Xin Jin
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Department of Chemistry, Fudan University, Shanghai 200433, P. R. China
| |
Collapse
|
47
|
|
48
|
Jiao T, Wu G, Zhang Y, Shen L, Lei Y, Wang C, Fahrenbach AC, Li H. Self‐Assembly in Water with N‐Substituted Imines. Angew Chem Int Ed Engl 2020; 59:18350-18367. [DOI: 10.1002/anie.201910739] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 12/09/2019] [Indexed: 12/20/2022]
Affiliation(s)
- Tianyu Jiao
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Guangcheng Wu
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Yang Zhang
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Libo Shen
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Ye Lei
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Cai‐Yun Wang
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | | | - Hao Li
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| |
Collapse
|
49
|
Abstract
We report a new class of building blocks for Dynamic Combinatorial Chemistry (DCC) based on the pyrroloindole scaffold. The attachment of l-cysteine on the α, α′ positions of the core makes the molecule suitable for disulfide exchange in aqueous dynamic combinatorial libraries (DCLs). The synthesis of the core follows a modified version of the Knoevenagel–Hemetsberger approach. The new building block (l-PI) is fluorescent (Φ = 48%) and relatively stable towards thermal and photodegradation. The chirality of the cysteine is transferred to the electron-rich pyrroloindole core. Homo- and heterochiral DCLs of l-PI with electron-deficient l- and d-naphthalenediimide (NDI) lead to similar library distributions regardless of the enantiomer used. When no salt is present, the major component is a dimer, while dimers and tetramers are obtained at increased ionic strength.
Collapse
|
50
|
Tamura Y, Takezawa H, Fujita M. A Double-Walled Knotted Cage for Guest-Adaptive Molecular Recognition. J Am Chem Soc 2020; 142:5504-5508. [DOI: 10.1021/jacs.0c00459] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yukari Tamura
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Hiroki Takezawa
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Makoto Fujita
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Division of Advanced Molecular Science, Institute for Molecular Science (IMS), 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan
| |
Collapse
|