1
|
Nazari N, Bernard S, Fortin D, Marmin T, Gendron L, Dory YL. Triple Thorpe-Ingold Effect in the Synthesis of 18-Membered C 3 Symmetric Lactams Stacking as Endless Supramolecular Tubes. Chemistry 2023; 29:e202203717. [PMID: 36469732 DOI: 10.1002/chem.202203717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/01/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022]
Abstract
Three C3 symmetric macrolactams were very efficiently cyclized from their linear precursors. Adequately located substituents are responsible for the enhancement of reactivity that is not observed in the unsubstituted parent. DFT calculations show that the properly folded cyclization precursor, the reactive conformer, is more populated than other conformers, leading to a decrease of free energy of activation. The crystal structure of the ring substituted with three very bulky esters indicates that tubular stacking is preserved.
Collapse
Affiliation(s)
- Niousha Nazari
- Laboratoire de Synthèse Supramoléculaire Département de Chimie, Université de Sherbrooke 2500, boulevard Université, Sherbrooke, Québec, J1K 2R1, Canada.,Institut de Pharmacologie et Centre de Recherche du CHUS, Université de Sherbrooke 3001, 12e avenue nord, Sherbrooke, Québec, J1H 5N4, Canada
| | - Sylvain Bernard
- Laboratoire de Synthèse Supramoléculaire Département de Chimie, Université de Sherbrooke 2500, boulevard Université, Sherbrooke, Québec, J1K 2R1, Canada.,Institut de Pharmacologie et Centre de Recherche du CHUS, Université de Sherbrooke 3001, 12e avenue nord, Sherbrooke, Québec, J1H 5N4, Canada
| | - Daniel Fortin
- Laboratoire de cristallographie, Université de Sherbrooke 2500, boulevard Université, Sherbrooke, Québec, J1K 2R1, Canada
| | - Thomas Marmin
- Laboratoire de Synthèse Supramoléculaire Département de Chimie, Université de Sherbrooke 2500, boulevard Université, Sherbrooke, Québec, J1K 2R1, Canada.,Institut de Pharmacologie et Centre de Recherche du CHUS, Université de Sherbrooke 3001, 12e avenue nord, Sherbrooke, Québec, J1H 5N4, Canada
| | - Louis Gendron
- Département de Pharmacologie-Biophysique 3001, 12e avenue nord, Sherbrooke, Québec, J1H 5N4, Canada.,Institut de Pharmacologie et Centre de Recherche du CHUS, Université de Sherbrooke 3001, 12e avenue nord, Sherbrooke, Québec, J1H 5N4, Canada
| | - Yves L Dory
- Laboratoire de Synthèse Supramoléculaire Département de Chimie, Université de Sherbrooke 2500, boulevard Université, Sherbrooke, Québec, J1K 2R1, Canada.,Institut de Pharmacologie et Centre de Recherche du CHUS, Université de Sherbrooke 3001, 12e avenue nord, Sherbrooke, Québec, J1H 5N4, Canada
| |
Collapse
|
2
|
Kameta N. Stimuli-Responsive Transformable Supramolecular Nanotubes. CHEM REC 2022; 22:e202200025. [PMID: 35244334 DOI: 10.1002/tcr.202200025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 02/16/2022] [Accepted: 02/22/2022] [Indexed: 12/11/2022]
Abstract
Supramolecular nanotubes produced by self-assembly of organic molecules can have unique structural features such as a one-dimensional morphology with no branching, distinguishable inner and outer surfaces and membrane walls, or a structure that is hollow and has a high aspect ratio. Incorporation of functional groups that respond to external chemical or physical stimuli into the constituent organic molecules of supramolecular nanotubes allows us to drastically change the structure of the nanotubes by applying such stimuli. This ability affords an array of controllable approaches for the encapsulation, storage, and release of guest compounds, which is expected to be useful in the fields of physics, chemistry, biology, and medicine. In this article, I review the supramolecular nanotubes developed by our group that exhibit morphological transformations in response to pH, chemical reaction, light, temperature, or moisture.
Collapse
Affiliation(s)
- Naohiro Kameta
- Nanomaterials Research Institute, Department of Materials and Chemistry, National Institute of Advanced Industrial Science and Technology, Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8565, Japan
| |
Collapse
|
3
|
Sun H, Dong L, Kim Y, Lee M. Supramolecular Tubule from Seesaw Shaped Amphiphile and Its Hierarchical Evolution into Sheet. Chem Asian J 2020; 15:2470-2474. [PMID: 32614501 DOI: 10.1002/asia.202000654] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 07/01/2020] [Indexed: 12/12/2022]
Abstract
Although supramolecular one-dimensional (1D) and two-dimensional (2D) structures with various unique properties have been extensively studied, the reversible switching between tubules and sheets via lateral association remains challenging. Here, we report the unique structures of a supramolecular tubular bamboo culm in which the hollow-tubular interior is separated, at intervals, by nodes per 1.3 nm. Interestingly, the discrete tubules are able to hierarchically assemble into a flat sheet in response to an aromatic guest. The addition of trans-azobenzene, as a guest, enables the tubules to form a hierarchical sheet assembly via the lateral interaction. The hierarchical sheet structures are disassembled into their constituent tubules upon UV irradiation due to trans-cis isomerization. The recovery from cis-azobenzene to trans-form induces repeatedly the hierarchical sheet assembly, indicative of a reversible switching behavior between tubules and sheets triggered by an external stimulus.
Collapse
Affiliation(s)
- Haonan Sun
- State Key Lab for Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Longlong Dong
- State Key Lab for Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Yongju Kim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841 (Republic of, Korea
| | - Myongsoo Lee
- State Key Lab for Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China.,Department of Chemistry, Fudan University, Shanghai, 200438, China
| |
Collapse
|
4
|
Wang Y, Lee M. Self-Assembly of Tetraphenylethylene-Based Amphiphiles in Aqueous Methanol Solution into Two-Dimensional Chiral Sheets for Enantioselective Sorption. Chempluschem 2020; 85:711-714. [PMID: 32323926 DOI: 10.1002/cplu.202000130] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 03/24/2020] [Indexed: 12/14/2022]
Abstract
Most synthetic building blocks self-assemble into one- or three-dimensional architectures. However, fewer examples have been reported on the aggregation of amphiphiles to form optically-active two-dimensional (2D) structures. Herein, we report the self-assembly of tetraphenylethylene (TPE)-containing hydrophilic dendrons into 2D sheet structures in aqueous methanol solution. TEM and AFM investigations showed that the self-assembly of disubstituted TPE generates helical nanofibers as an intermediate structure which, in turn, laterally associate into a chiral sheet structure with a thickness of 4.6 nm, whereas tetrasubstituted TPE self-assembles into a nonchiral sheet structure with a thickness of 3.8 nm. In great contrast to the nonchiral sheets, the chiral sheets are able to preferentially absorb the d-enantiomer in a racemic phenylalanine derivative solution accompanied by fluorescence enhancement, thus indicating that the single-layered chiral sheets act as an enantioselective membrane that can be used for fluorescence sensing.
Collapse
Affiliation(s)
- Yanqiu Wang
- College of Material Science and Engineering, Changchun University of Science and Technology, Changchun, 130022, P. R. China
| | - Myongsoo Lee
- Department of Chemistry, Fudan University, Shanghai, 200438, P. R. China
| |
Collapse
|
5
|
Chen L, Chen C, Sun Y, Lu S, Huo H, Tan T, Li A, Li X, Ungar G, Liu F, Zhang M. Luminescent Metallacycle‐Cored Liquid Crystals Induced by Metal Coordination. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915055] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Long Chen
- State Key Laboratory for Mechanical Behavior of MaterialsShaanxi International Research Center for Soft MatterSchool of Materials Science and EngineeringXi'an Jiaotong University Xi'an 710049 P. R. China
| | - Changlong Chen
- State Key Laboratory for Mechanical Behavior of MaterialsShaanxi International Research Center for Soft MatterSchool of Materials Science and EngineeringXi'an Jiaotong University Xi'an 710049 P. R. China
| | - Yue Sun
- Hubei Key Laboratory of Catalysis and Materials ScienceCollege of Chemistry and Material SciencesSouth-Central University for Nationalities Wuhan 430074 P. R. China
| | - Shuai Lu
- Department of ChemistryUniversity of South Florida Tampa FL 33620 USA
- College of ChemistryZhengzhou University Zhengzhou Henan 450001 P. R. China
| | - Haohui Huo
- State Key Laboratory for Mechanical Behavior of MaterialsShaanxi International Research Center for Soft MatterSchool of Materials Science and EngineeringXi'an Jiaotong University Xi'an 710049 P. R. China
| | - Tianyi Tan
- State Key Laboratory for Mechanical Behavior of MaterialsShaanxi International Research Center for Soft MatterSchool of Materials Science and EngineeringXi'an Jiaotong University Xi'an 710049 P. R. China
| | - Anquan Li
- School of ChemistrySun Yat-Sen University Guangzhou 510275 P. R. China
| | - Xiaopeng Li
- Department of ChemistryUniversity of South Florida Tampa FL 33620 USA
| | - Goran Ungar
- State Key Laboratory for Mechanical Behavior of MaterialsShaanxi International Research Center for Soft MatterSchool of Materials Science and EngineeringXi'an Jiaotong University Xi'an 710049 P. R. China
| | - Feng Liu
- State Key Laboratory for Mechanical Behavior of MaterialsShaanxi International Research Center for Soft MatterSchool of Materials Science and EngineeringXi'an Jiaotong University Xi'an 710049 P. R. China
| | - Mingming Zhang
- State Key Laboratory for Mechanical Behavior of MaterialsShaanxi International Research Center for Soft MatterSchool of Materials Science and EngineeringXi'an Jiaotong University Xi'an 710049 P. R. China
| |
Collapse
|
6
|
Chen L, Chen C, Sun Y, Lu S, Huo H, Tan T, Li A, Li X, Ungar G, Liu F, Zhang M. Luminescent Metallacycle-Cored Liquid Crystals Induced by Metal Coordination. Angew Chem Int Ed Engl 2020; 59:10143-10150. [PMID: 32080962 DOI: 10.1002/anie.201915055] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 01/07/2020] [Indexed: 12/31/2022]
Abstract
Two rhomboidal metallacycles based on metal-coordination-driven self-assembly are presented. Because metal-coordination interactions restrict the rotation of phenyl groups on tetraphenylethene units, these metallacycles were emissive both in solution and in solid state, and their aggregation-induced emission properties were well-retained. Moreover, the rhomboidal metallacyclic structures offer a platform for intermolecular packing beneficial for the formation of liquid crystalline phases. Therefore, although neither of building blocks shows mesogenic properties, both thermotropic and lyotropic (in DMF) mesophases were observed in one of metallacycles, indicating that mesophases could be induced by metal-coordination interactions. This study not only reveals the mechanism for the formation of cavity-cored liquid crystals, but also provides a convenient approach to preparing supramolecular luminescent liquid crystals, which will serve as good candidates for chemo sensors and liquid crystal displays.
Collapse
Affiliation(s)
- Long Chen
- State Key Laboratory for Mechanical Behavior of Materials, Shaanxi International Research Center for Soft Matter, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Changlong Chen
- State Key Laboratory for Mechanical Behavior of Materials, Shaanxi International Research Center for Soft Matter, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Yue Sun
- Hubei Key Laboratory of Catalysis and Materials Science, College of Chemistry and Material Sciences, South-Central University for Nationalities, Wuhan, 430074, P. R. China
| | - Shuai Lu
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA.,College of Chemistry, Zhengzhou University, Zhengzhou, Henan, 450001, P. R. China
| | - Haohui Huo
- State Key Laboratory for Mechanical Behavior of Materials, Shaanxi International Research Center for Soft Matter, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Tianyi Tan
- State Key Laboratory for Mechanical Behavior of Materials, Shaanxi International Research Center for Soft Matter, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Anquan Li
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Xiaopeng Li
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Goran Ungar
- State Key Laboratory for Mechanical Behavior of Materials, Shaanxi International Research Center for Soft Matter, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Feng Liu
- State Key Laboratory for Mechanical Behavior of Materials, Shaanxi International Research Center for Soft Matter, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Mingming Zhang
- State Key Laboratory for Mechanical Behavior of Materials, Shaanxi International Research Center for Soft Matter, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| |
Collapse
|