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Gao C, Li S, Zhao C, Sun Q, Sun X, Ge L, Wang L, Xi Z, Han J, Guo R. Self-Assembled Metal-Coordination Nanohelices as Efficient and Robust Chiral Supramolecular Catalysts for Enantioselective Reactions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310234. [PMID: 38155520 DOI: 10.1002/smll.202310234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/14/2023] [Indexed: 12/30/2023]
Abstract
The development of chiral nanostructures-based supramolecular catalysts with satisfied enantioselectivity remains a significantly more challenging task. Herein, the synthesis and self-assembly of various amino acid amphiphiles as chiral supramolecular catalysts after metal ion coordination is reported and systematically investigate their enantioselectivity in asymmetric Diels-Alder reactions. In particular, the self-assembly of l/d-phenylglycine-based amphiphiles (l/d-PhgC16) and Cu(II) into chiral supramolecular catalysts in the methanol/water solution mixture is described, which features the interesting M/P nanohelices (diameter ≈8 nm) and mostly well-aligned M/P nanoribbons (NRs). The M/P supramolecular catalysts show both high but inverse enantioselectivity (>90% ee) in Diels-Alder reactions, while their monomeric counterparts display nearly racemic products. Analysis of the catalytic results suggests the outstanding enantioselectivities are closely related to the specific stereochemical microenvironment provided by the arrangement of the amphiphiles in the supramolecular assembly. Based on the experimental evidence of chirality transfer from supramolecular nanohelices to coordinated Cu(II) and substrate aza-chalcone and the molecular dynamics simulations, the enantioselective catalytic mechanisms are proposed. Moreover, the relationships between molecular structures of amino acid amphiphiles (the hydrophilic head group and hydrophobic alkyl chain length) in supramolecular catalysts and enantioselectivity in Diels-Alder reactions are elaborated.
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Affiliation(s)
- Cong Gao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, China
| | - Shixin Li
- School of Bioscience and Biotechnology, Yangzhou University, Yangzhou, Jiangsu, 225002, China
| | - Cici Zhao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, China
| | - Qingqing Sun
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, China
| | - Xiaohuan Sun
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, China
| | - Lingling Ge
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, China
| | - Lei Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, China
| | - Zheng Xi
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, China
| | - Jie Han
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, China
| | - Rong Guo
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, China
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2
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Zha X, Chen Y, Fan H, Yang Y, Xiong Y, Xu G, Yan K, Wang Y, Xie Y, Wang D. Handedness Inversion of Chiral 3-Aminophenol Formaldehyde Resin Nanotubes Mediated by Metal Coordination. Angew Chem Int Ed Engl 2021; 60:7759-7769. [PMID: 33368984 DOI: 10.1002/anie.202013790] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Indexed: 12/31/2022]
Abstract
Precise adjustment of microstructure and handedness of chiral nanomaterials is important to regulate their properties and performance. Herein, helical 3-aminophenol formaldehyde resin (APF) nanotubes and corresponding carbonaceous nanotubes with controllable handedness and optical activity were obtained via an external metal ion-mediated supramolecular co-templating method in an enantiomerically pure template system, in which an appropriate amount of Mn2+ (Co2+ or Ni2+ ) with moderate coordination abilities can reverse the spatial arrangement of the phenylglycine-based amphiphilic template molecules through metal coordination. Different stacking modes of coordination complexes in disparate metal ion systems lead to diverse helical senses (diameter and pitch) of the obtained helical APF. In addition, this coordination mode of metal intervention can be applied to other amine-based helical polymer synthesis systems, which paves the way for the design of high-quality chiral nanomaterials with satisfactory physical parameters and properties.
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Affiliation(s)
- Xinlin Zha
- Hubei Key Laboratory of Advanced Textile Materials & Application, Wuhan Textile University, Yangguang Road 1, Wuhan, 430200, P. R. China
| | - Yuanli Chen
- Hubei Key Laboratory of Advanced Textile Materials & Application, Wuhan Textile University, Yangguang Road 1, Wuhan, 430200, P. R. China
| | - Hui Fan
- Hubei Key Laboratory of Advanced Textile Materials & Application, Wuhan Textile University, Yangguang Road 1, Wuhan, 430200, P. R. China
| | - Yonggang Yang
- College of Chemistry and Chemical Engineering, Suzhou University, Suzhou, 215123, P. R. China
| | - Yi Xiong
- Hubei Key Laboratory of Advanced Textile Materials & Application, Wuhan Textile University, Yangguang Road 1, Wuhan, 430200, P. R. China
| | - Guilin Xu
- Hubei Key Laboratory of Advanced Textile Materials & Application, Wuhan Textile University, Yangguang Road 1, Wuhan, 430200, P. R. China
| | - Kun Yan
- Hubei Key Laboratory of Advanced Textile Materials & Application, Wuhan Textile University, Yangguang Road 1, Wuhan, 430200, P. R. China
| | - Yuedan Wang
- Hubei Key Laboratory of Advanced Textile Materials & Application, Wuhan Textile University, Yangguang Road 1, Wuhan, 430200, P. R. China
| | - Yi Xie
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Dong Wang
- Hubei Key Laboratory of Advanced Textile Materials & Application, Wuhan Textile University, Yangguang Road 1, Wuhan, 430200, P. R. China
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Zha X, Chen Y, Fan H, Yang Y, Xiong Y, Xu G, Yan K, Wang Y, Xie Y, Wang D. Handedness Inversion of Chiral 3‐Aminophenol Formaldehyde Resin Nanotubes Mediated by Metal Coordination. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202013790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xinlin Zha
- Hubei Key Laboratory of Advanced Textile Materials & Application Wuhan Textile University Yangguang Road 1 Wuhan 430200 P. R. China
| | - Yuanli Chen
- Hubei Key Laboratory of Advanced Textile Materials & Application Wuhan Textile University Yangguang Road 1 Wuhan 430200 P. R. China
| | - Hui Fan
- Hubei Key Laboratory of Advanced Textile Materials & Application Wuhan Textile University Yangguang Road 1 Wuhan 430200 P. R. China
| | - Yonggang Yang
- College of Chemistry and Chemical Engineering Suzhou University Suzhou 215123 P. R. China
| | - Yi Xiong
- Hubei Key Laboratory of Advanced Textile Materials & Application Wuhan Textile University Yangguang Road 1 Wuhan 430200 P. R. China
| | - Guilin Xu
- Hubei Key Laboratory of Advanced Textile Materials & Application Wuhan Textile University Yangguang Road 1 Wuhan 430200 P. R. China
| | - Kun Yan
- Hubei Key Laboratory of Advanced Textile Materials & Application Wuhan Textile University Yangguang Road 1 Wuhan 430200 P. R. China
| | - Yuedan Wang
- Hubei Key Laboratory of Advanced Textile Materials & Application Wuhan Textile University Yangguang Road 1 Wuhan 430200 P. R. China
| | - Yi Xie
- Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy Materials University of Science and Technology of China Hefei 230026 P. R. China
| | - Dong Wang
- Hubei Key Laboratory of Advanced Textile Materials & Application Wuhan Textile University Yangguang Road 1 Wuhan 430200 P. R. China
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Yang T, Xue H, Cao R, Li W. Formation of homochiral helical nanostructures in diblock copolymers under the confinement of nanopores. Phys Chem Chem Phys 2019; 21:7067-7074. [DOI: 10.1039/c9cp00227h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The control of the homochirality of helical structures formed in achiral systems is of great interest as it is helpful for understanding the origin of homochirality in life.
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Affiliation(s)
- Tao Yang
- Ningxia Key Laboratory of Information Sensing & Intelligent Desert
- School of Physics and Electronic-Electrical Engineering
- Ningxia University
- Yinchuan 750021
- China
| | - Haiyan Xue
- Ningxia Key Laboratory of Information Sensing & Intelligent Desert
- School of Physics and Electronic-Electrical Engineering
- Ningxia University
- Yinchuan 750021
- China
| | - Ruifang Cao
- Xinhua College of Ningxia University
- Yinchuan 750021
- China
| | - Weihua Li
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
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Li J, Li Y, Li B, Yang Y. Left-handed helical polymer resin nanotubes prepared by using N-palmitoyl glucosamine. Chirality 2017; 30:439-444. [PMID: 29266451 DOI: 10.1002/chir.22804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 10/30/2017] [Accepted: 11/21/2017] [Indexed: 12/31/2022]
Abstract
Although the preparation of single-handed helical inorganic and hybrid organic-inorganic nanotubes is well developed, approaches to the formation of single-handed organopolymeric nanotubes are limited. Here, left-handed helical m-phenylenediamine-formaldehyde resin and 3-aminophenol-formaldehyde resin nanotubes were prepared by using N-palmitoyl glucosamine that can self-assemble into left-handed twisted nanoribbons in a mixture of methanol and water. In the reaction mixture, the helical pitch of the nanoribbons decreased with increasing reaction time. The resin nanotubes were obtained after removing the N-palmitoyl glucosamine template, and circular dichroism spectroscopy indicated that the organopolymeric nanotubes had optical activity. Carbonaceous nanotubes were then prepared by carbonization of the 3-aminophenol-formaldehyde resin nanotubes.
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Affiliation(s)
- Jiangang Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, China
| | - Yi Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, China
| | - Baozong Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, China
| | - Yonggang Yang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, China
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Li Y, Yang Y. Single-Handed Helical Carbonaceous Nanotubes: Preparation, Optical Activity, and Applications. CHEM REC 2017; 18:55-64. [PMID: 28675550 DOI: 10.1002/tcr.201700031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Indexed: 01/17/2023]
Abstract
Carbon-based nanomaterials have been widely studied in the past decade. Three approaches have been developed for the preparation of single-handed helical carbonaceous nanotubes. The first approach uses the carbonization of organopolymeric nanotubes, where the organic polymers are polypyrrole, 3-aminophenol-formaldehyde resin, and m-diaminobenzene-formaldehyde resin. The second approach uses the carbonization of aromatic ring-bridged polybissilsesquioxane followed by the removal of silica. Micropores exist within the walls of the carbonaceous nanotubes. The third approach uses the carbonization of organic compounds within silica nanotubes. This hard-templating approach drives the formation of helical carbonaceous nanotubes containing twisted carbonaceous nanoribbons. All of these helical carbonaceous nanotubes exhibit optical activity, which is believed to originate from the chiral π-π stacking of aromatic rings. They can be used as chirality inducers, and for lithium-ion storage.
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Affiliation(s)
- Yi Li
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P.R. China
| | - Yonggang Yang
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P.R. China
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Shao C, Li J, Chen H, Li B, Li Y, Yang Y. Synthesis of Helical Phenolic Resin Bundles through a Sol-Gel Transcription Method. Gels 2017; 3:E9. [PMID: 30920506 PMCID: PMC6318678 DOI: 10.3390/gels3010009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 02/17/2017] [Accepted: 02/18/2017] [Indexed: 01/08/2023] Open
Abstract
Chiral and helical polymers possess special helical structures and optical property, and may find applications in chiral catalysis and optical devices. This work presents the preparation and formation process of helical phenolic resins through a sol-gel transcription method. A pair of bola-type chiral low-molecular-weight gelators (LMWGs) derived from valine are used as templates, while 2,4-dihydroxybenzoic acid and formaldehyde are used as precursors. The electron microscopy images show that the phenolic resins are single-handed helical bundles comprised of helical ultrafine nanofibers. The diffused reflection circular dichroism spectra indicate that the helical phenolic resins exhibit optical activity. A possible formation mechanism is proposed, which shows the co-assembly of the LMWGs and the precursors.
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Affiliation(s)
- Changzhen Shao
- Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Jiangang Li
- Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Hao Chen
- Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Baozong Li
- Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Yi Li
- Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Yonggang Yang
- Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
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Single-Handed Helical Polybissilsesquioxane Nanotubes and Mesoporous Nanofibers Prepared by an External Templating Approach Using Low-Molecular-Weight Gelators. Gels 2017; 3:gels3010002. [PMID: 30920499 PMCID: PMC6318642 DOI: 10.3390/gels3010002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 12/09/2016] [Accepted: 12/15/2016] [Indexed: 01/04/2023] Open
Abstract
Chiral low-molecular-weight gelators (LMWGs) derived from amino acids can self-assemble into helical fibers and twisted/coiled nanoribbons by H-bonding and π⁻π interaction. Silica nanotubes with single-handed helices have been prepared using chiral LMWGs through sol⁻gel transcription. Molecular-scale chirality exists at the inner surfaces. Here, we discuss single-handed helical aromatic ring-bridged polybissilsesquioxane nanotubes and mesoporous nanofibers prepared using chiral LMWGs. This review aims at describing the formation mechanisms of the helical nanostructures, the origination of optical activity, and the applications for other helical nanomaterial preparation, mainly based on our group's results. The morphology and handedness can be controlled by changing the chirality and kinds of LMWGs and tuning the reaction conditions. The aromatic rings arrange in a partially crystalline structure. The optical activity of the polybissilsesquioxane nanotubes and mesoporous nanofibers originates from chiral defects, including stacking and twisting of aromatic groups, on the inner surfaces. They can be used as the starting materials for preparation of silica, silicon, carbonaceous, silica/carbon, and silicon carbide nanotubes.
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Characterization of a chiral low molecular weight gelator in gel state using various circular dichroism methods. Chem Res Chin Univ 2016. [DOI: 10.1007/s40242-016-6168-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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10
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Deng H, Qiang Y, Zhang T, Li W, Yang T. Chiral selection of single helix formed by diblock copolymers confined in nanopores. NANOSCALE 2016; 8:15961-15969. [PMID: 27536966 DOI: 10.1039/c6nr05043c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Chiral selection has attracted tremendous attention from the scientific communities, especially from biologists, due to the mysterious origin of homochirality in life. The self-assembly of achiral block copolymers confined in nanopores offers a simple but useful model of forming helical structures, where the helical structures possess random chirality selection, i.e. equal probability of left-handedness and right-handedness. Based on this model, we study the stimulus-response of chiral selection to external conditions by introducing a designed chiral pattern onto the inner surface of a nanopore, aiming to obtain a defect-free helix with controllable homochirality. A cell dynamics simulation based on the time-dependent Ginzburg-Landau theory is carried out to demonstrate the tuning effect of the patterned surface on the chiral selection. Our results illustrate that the chirality of the helix can be successfully controlled to be consistent with that of the tailored surface patterns. This work provides a successful example for the stimulus response of the chiral selection of self-assembled morphologies from achiral macromolecules to external conditions, and hence sheds light on the understanding of the mechanism of the stimulus response.
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Affiliation(s)
- Hanlin Deng
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China.
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Cao Y, Liu D, Li B, Li Y, Yang Y. Preparation of single-handed helical and C-shaped 3-aminophenol-formaldehyde resin nanotubes and single-handed helical carbonaceous nanotubes. Chem Res Chin Univ 2016. [DOI: 10.1007/s40242-016-6069-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Liu D, Li B, Guo Y, Li Y, Yang Y. Inner Surface Chirality of Single-Handed Twisted Carbonaceous Tubular Nanoribbons. Chirality 2015; 27:809-15. [DOI: 10.1002/chir.22496] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 06/12/2015] [Accepted: 07/19/2015] [Indexed: 01/22/2023]
Affiliation(s)
- Dan Liu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou P.R. China
| | - Baozong Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou P.R. China
| | - Yongmin Guo
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou P.R. China
| | - Yi Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou P.R. China
| | - Yonggang Yang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou P.R. China
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