201
|
He GH, Ren BH, Chen SY, Liu Y, Lu XB. Enantioselective, Stereoconvergent Resolution Copolymerization of Racemic cis-Internal Epoxides and Anhydrides. Angew Chem Int Ed Engl 2021; 60:5994-6002. [PMID: 33270965 DOI: 10.1002/anie.202011259] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Indexed: 11/12/2022]
Abstract
Unprecedented enantioselective resolution copolymerization of racemic cis-internal epoxides and anhydrides was mediated by dinuclear aluminum complexes with multiple chirality, affording optically active polyesters with two contiguous stereogenic centers, and the unreacted substrates in good enantioselectivity. Unexpected stereoconvergence is observed in this resolution copolymerization, where the selectivity factor for the enantioselective formation of copolymer significantly exceeds the kinetic resolution coefficient based on the unreacted epoxide at various conversions. Catalytic activity and copolymer enantioselectivity are strongly influenced by the phenolate ortho-substituents of the ligand set, as well as the axial linker and its chirality. An enantiopure binaphthol-linked bimetallic AlIII complex allows stereoconvergent access to the stereoregular semi-crystalline polyesters and a concomitant kinetic resolution of the epoxide substrates.
Collapse
Affiliation(s)
- Guang-Hui He
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
| | - Bai-Hao Ren
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
| | - Shi-Yu Chen
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
| | - Ye Liu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
| | - Xiao-Bing Lu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
| |
Collapse
|
202
|
He G, Ren B, Chen S, Liu Y, Lu X. Enantioselective, Stereoconvergent Resolution Copolymerization of Racemic
cis
‐Internal Epoxides and Anhydrides. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202011259] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Guang‐Hui He
- State Key Laboratory of Fine Chemicals Dalian University of Technology 2 Linggong Road Dalian 116024 China
| | - Bai‐Hao Ren
- State Key Laboratory of Fine Chemicals Dalian University of Technology 2 Linggong Road Dalian 116024 China
| | - Shi‐Yu Chen
- State Key Laboratory of Fine Chemicals Dalian University of Technology 2 Linggong Road Dalian 116024 China
| | - Ye Liu
- State Key Laboratory of Fine Chemicals Dalian University of Technology 2 Linggong Road Dalian 116024 China
| | - Xiao‐Bing Lu
- State Key Laboratory of Fine Chemicals Dalian University of Technology 2 Linggong Road Dalian 116024 China
| |
Collapse
|
203
|
Zheng L, Guo S, Wang C, Wang Y, Fan Y, Chen X, Zhang K, Jiang H. Distance-Dependent Chiral Communication between Two Quinoline Oligoamide Foldamers Connected by Alkyl Chains. Chempluschem 2021; 86:340-346. [PMID: 33624952 DOI: 10.1002/cplu.202000824] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/13/2021] [Indexed: 11/09/2022]
Abstract
A series of macrocycles that contain two quinoline oligoamide foldamers (QOFs) using various length of alkyl chains as linkers (2, 3, 6, 8 or 12 hydrocarbons) were synthesized. The two QOFs interact with each other through the linkers and the intramolecular helix chiral communications between the two QOFs were studied by 1 H NMR spectroscopy and crystal structures. Investigations show that the intensity of the intramolecular helix chiral communications between the two QOFs is dependent on the length of the linkers, and the interaction between the two QOFs increases with decreasing length of the linkers. When the length of the linkers decreased to C2 linkers, only one conformer is present in solution. Moreover, increasing the length of the foldamers would enhance the intramolecular helix chiral communication if the linkers are short, indicating that the length of the foldamers also has significant impact on intramolecular helix chiral communication.
Collapse
Affiliation(s)
- Lu Zheng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, P. R. China.,International Healthcare Innovation Institute (Jiangmen), Jiangmen, 529040, P. R. China.,School of Pharmacy, Jiangsu Ocean University, Lianyungang, 222005, P. R. China
| | - Shengzhu Guo
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, P. R. China.,International Healthcare Innovation Institute (Jiangmen), Jiangmen, 529040, P. R. China
| | - Chu Wang
- College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Yanru Wang
- College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Yanqing Fan
- College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Xuebo Chen
- College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Kun Zhang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, P. R. China.,International Healthcare Innovation Institute (Jiangmen), Jiangmen, 529040, P. R. China
| | - Hua Jiang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, P. R. China.,International Healthcare Innovation Institute (Jiangmen), Jiangmen, 529040, P. R. China.,College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| |
Collapse
|
204
|
Li Y, Xu L, Kang S, Zhou L, Liu N, Wu Z. Helicity‐ and Molecular‐Weight‐Driven Self‐Sorting and Assembly of Helical Polymers towards Two‐Dimensional Smectic Architectures and Selectively Adhesive Gels. Angew Chem Int Ed Engl 2021; 60:7174-7179. [DOI: 10.1002/anie.202014813] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 01/06/2021] [Indexed: 02/03/2023]
Affiliation(s)
- Yan‐Xiang Li
- Department of Polymer Science and Engineering School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering Hefei University of Technology Hefei 230009 Anhui Province China
| | - Lei Xu
- Department of Polymer Science and Engineering School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering Hefei University of Technology Hefei 230009 Anhui Province China
| | - Shu‐Ming Kang
- Department of Polymer Science and Engineering School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering Hefei University of Technology Hefei 230009 Anhui Province China
| | - Li Zhou
- Department of Polymer Science and Engineering School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering Hefei University of Technology Hefei 230009 Anhui Province China
| | - Na Liu
- Department of Polymer Science and Engineering School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering Hefei University of Technology Hefei 230009 Anhui Province China
| | - Zong‐Quan Wu
- Department of Polymer Science and Engineering School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering Hefei University of Technology Hefei 230009 Anhui Province China
| |
Collapse
|
205
|
Martínez-Aguirre MA, Li Y, Vanthuyne N, Bouteiller L, Raynal M. Dissecting the Role of the Sergeants in Supramolecular Helical Catalysts: From Chain Capping to Intercalation. Angew Chem Int Ed Engl 2021; 60:4183-4191. [PMID: 33180372 DOI: 10.1002/anie.202012457] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Indexed: 11/05/2022]
Abstract
Controlling the properties of supramolecular assemblies requires unveiling the specific interactions between their components. In the present work, the catalytic properties and structure of co-assemblies composed of a benzene-1,3,5-tricarboxamide (BTA) ligand coordinated to copper (the soldier) and seven enantiopure BTAs (the sergeants) have been determined. Whatever the sergeant, the enantioselectivity of the reaction is directly proportional to the optical purity of the supramolecular helices. More strikingly, the role played by the sergeant in the co-assembly process differs significantly: from almost pure intercalator (when it is incorporated in the stacks of the soldier and generates long homochiral helices) to pure chain capper (when it leads to the formation of partly helically biased and short assemblies). The former situation leads to optimal enantioselectivity for the catalytic system under study (58 % ee) while the latter situation leads to very low selectivity (8 % ee). The successful rationalization of this high and unexpected difference is crucial for the development of more efficient catalysts and more elaborate supramolecular systems.
Collapse
Affiliation(s)
- Mayte A Martínez-Aguirre
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, 4 Place Jussieu, 75005, Paris, France
| | - Yan Li
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, 4 Place Jussieu, 75005, Paris, France
| | - Nicolas Vanthuyne
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2, UMR 7313, 13397, Marseille Cedex 20, France
| | - Laurent Bouteiller
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, 4 Place Jussieu, 75005, Paris, France
| | - Matthieu Raynal
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, 4 Place Jussieu, 75005, Paris, France
| |
Collapse
|
206
|
Oh JS, Kim KY, Park J, Lee H, Park Y, Cho J, Lee SS, Kim H, Jung SH, Jung JH. Dynamic Transformation of a Ag+-Coordinated Supramolecular Nanostructure from a 1D Needle to a 1D Helical Tube via a 2D Ribbon Accompanying the Conversion of Complex Structures. J Am Chem Soc 2021; 143:3113-3123. [DOI: 10.1021/jacs.0c10678] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Jeong Sang Oh
- Department of Chemistry and Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Ka Young Kim
- Department of Chemistry and Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Jaehyeon Park
- Department of Chemistry and Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Hyeonju Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Younwoo Park
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jaeheung Cho
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Shim Sung Lee
- Department of Chemistry and Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Hyungjun Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Sung Ho Jung
- Department of Liberal Arts, Gyeongnam National University of Science and Technology (GNTECH), Jinju 52725, Republic of Korea
| | - Jong Hwa Jung
- Department of Chemistry and Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| |
Collapse
|
207
|
Ousaka N, Yashima E. Stimuli-responsive Molecular Springs Based on Single- and Multi-stranded Helical Structures. CHEM LETT 2021. [DOI: 10.1246/cl.200737] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Naoki Ousaka
- Molecular Engineering Institute, Kyushu Institute of Technology, Tobata-ku, Kitakyushu, Fukuoka 804-8550, Japan
| | - Eiji Yashima
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
| |
Collapse
|
208
|
Yin G, Kandapal S, Liu C, Wang H, Huang J, Jiang S, Ji T, Yan Y, Khalife S, Zhou R, Ye L, Xu B, Yang H, Nieh M, Li X. Metallo‐Helicoid with Double Rims: Polymerization Followed by Folding by Intramolecular Coordination. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202010696] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Guang‐Qiang Yin
- College of Chemistry and Environmental Engineering Shenzhen University Shenzhen Guangdong 518055 China
| | - Sneha Kandapal
- Single Molecule Study Laboratory College of Engineering and Nanoscale Science and Engineering Center University of Georgia Athens GA 30602 USA
| | - Chung‐Hao Liu
- Department of Chemical and Biomolecular Engineering University of Connecticut Storrs CT 06269 USA
| | - Heng Wang
- College of Chemistry and Environmental Engineering Shenzhen University Shenzhen Guangdong 518055 China
| | - Jianxiang Huang
- Institute of Quantitative Biology Zhejiang University Hangzhou Zhejiang 310027 China
| | - Shu‐Ting Jiang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes Department of Chemistry East China Normal University Shanghai 200062 China
| | - Tan Ji
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes Department of Chemistry East China Normal University Shanghai 200062 China
| | - Yu Yan
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - Sandra Khalife
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - Ruhong Zhou
- Institute of Quantitative Biology Zhejiang University Hangzhou Zhejiang 310027 China
| | - Libin Ye
- Department of Cell Biology, Microbiology and Molecular Biology University of South Florida Tampa FL 33620 USA
| | - Bingqian Xu
- Single Molecule Study Laboratory College of Engineering and Nanoscale Science and Engineering Center University of Georgia Athens GA 30602 USA
| | - Hai‐Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes Department of Chemistry East China Normal University Shanghai 200062 China
| | - Mu‐Ping Nieh
- Department of Chemical and Biomolecular Engineering University of Connecticut Storrs CT 06269 USA
- Polymer Program Institute of Material Science University of Connecticut Storrs CT 06269 USA
| | - Xiaopeng Li
- College of Chemistry and Environmental Engineering Shenzhen University Shenzhen Guangdong 518055 China
| |
Collapse
|
209
|
Hernández D, Carro C, Boto A. "Doubly Customizable" Unit for the Generation of Structural Diversity: From Pure Enantiomeric Amines to Peptide Derivatives. J Org Chem 2021; 86:2796-2809. [PMID: 33433228 DOI: 10.1021/acs.joc.0c02751] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Readily available, low-cost 4R-hydroxy-l-proline (Hyp) is introduced as a "doubly customizable" unit for the generation of libraries of structurally diverse compounds. Hyp can be cleaved at two points, followed by the introduction of new functionalities. In the first cycle, the removal and replacement of the carboxylic group are carried out, followed (second cycle) by the scission of the 4,5-position and manipulation of the resulting chains. In this way, three new chains are generated and can be transformed independently to afford a diversity of products with tailored substituents, such as β-amino aldehydes, diamines, β-amino acid derivatives, including N-alkylated ones, or modified peptides. Many of these products are high-profit compounds but, in spite of their commercial value, are still scarce. Moreover, the process takes place with stereochemical control, and either pure R or S isomers can be obtained with small variations of the synthetic route.
Collapse
Affiliation(s)
- Dacil Hernández
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Fco. Sánchez, 3, 38206 La Laguna, Tenerife, Spain
| | - Carmen Carro
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Fco. Sánchez, 3, 38206 La Laguna, Tenerife, Spain.,BIOSIGMA, Antonio Domínguez Alfonso 16, 38003 Santa Cruz de Tenerife, Tenerife, Spain
| | - Alicia Boto
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Fco. Sánchez, 3, 38206 La Laguna, Tenerife, Spain
| |
Collapse
|
210
|
Li R, Gompper G, Ripoll M. Tumbling and Vorticity Drift of Flexible Helicoidal Polymers in Shear Flow. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c01651] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Run Li
- Theoretical Physics of Living Matter, Institute of Biological Information Processing and Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Gerhard Gompper
- Theoretical Physics of Living Matter, Institute of Biological Information Processing and Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Marisol Ripoll
- Theoretical Physics of Living Matter, Institute of Biological Information Processing and Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
| |
Collapse
|
211
|
Zhou L, Li CL, Gao RT, Kang SM, Xu L, Xu XH, Liu N, Wu ZQ. Highly Regioselective and Helix-Sense Selective Living Polymerization of Phenyl and Alkoxyallene Using Chiral Nickel(II) Catalysts. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02198] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Li Zhou
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009 Anhui Province, China
| | - Chong-Long Li
- School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021 Ningxia Hui Autonomous Region, China
| | - Run-Tan Gao
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009 Anhui Province, China
| | - Shu-Ming Kang
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009 Anhui Province, China
| | - Lei Xu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009 Anhui Province, China
| | - Xun-Hui Xu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009 Anhui Province, China
| | - Na Liu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009 Anhui Province, China
| | - Zong-Quan Wu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009 Anhui Province, China
| |
Collapse
|
212
|
Pramanik S, Kauffmann B, Hecht S, Ferrand Y, Huc I. Light-mediated chiroptical switching of an achiral foldamer host in presence of a carbohydrate guest. Chem Commun (Camb) 2021; 57:93-96. [PMID: 33332504 DOI: 10.1039/d0cc06484j] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A photoresponsive diarylethene was incorporated in an achiral helical foldamer container. A carbohydrate guest was found to induce opposite handedness upon binding to the open and closed forms of the diarylethene-containing foldamer, thus enabling chiroptical switching of an achiral host mediated by a chiral guest.
Collapse
Affiliation(s)
- Susnata Pramanik
- Department Pharmazie and Center for Integrated Protein Science, Ludwig-Maximilians-Universität, Butenandtstr. 5-13, 81377 München, Germany.
| | | | | | | | | |
Collapse
|
213
|
Palmans ARA, Meijer EW, Denmark SE. Stereochemical language in supramolecular polymer chemistry: How we can do better. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20200814] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Anja R. A. Palmans
- Laboratory of Macromolecular and Organic Chemistry Institute for Complex Molecular Systems, Eindhoven University of Technology Eindhoven The Netherlands
| | - E. W. Meijer
- Laboratory of Macromolecular and Organic Chemistry Institute for Complex Molecular Systems, Eindhoven University of Technology Eindhoven The Netherlands
| | - Scott E. Denmark
- Department of Chemistry University of Illinois Urbana‐Champaign Illinois USA
| |
Collapse
|
214
|
Rohmer M, Ucak Ö, Fredrick R, Binder WH. Chiral amines as initiators for ROP and their chiral induction on poly(2-aminoisobutyric acid) chains. Polym Chem 2021. [DOI: 10.1039/d1py01021b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chirality induction by chiral amines in poly(amino acid)s by ring opening polymerization.
Collapse
Affiliation(s)
- Matthias Rohmer
- Martin-Luther University Halle Wittenberg, Chair of Macromolecular Chemistry, D-06120 Halle, Germany
| | - Özgün Ucak
- Martin-Luther University Halle Wittenberg, Chair of Macromolecular Chemistry, D-06120 Halle, Germany
| | - Rahul Fredrick
- Martin-Luther University Halle Wittenberg, Chair of Polymer Reaction Engineering, D-06099 Halle, Germany
| | - Wolfgang H. Binder
- Martin-Luther University Halle Wittenberg, Chair of Macromolecular Chemistry, D-06120 Halle, Germany
| |
Collapse
|
215
|
Wang Y, Yazawa K, Wang Q, Harada T, Shimoda S, Song Z, Bando M, Naga N, Nakano T. Optically active covalent organic frameworks and hyperbranched polymers with chirality induced by circularly polarized light. Chem Commun (Camb) 2021; 57:7681-7684. [PMID: 34254593 DOI: 10.1039/d1cc02671b] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Axial chirality was induced by circularly polarized light to covalent organic frameworks as well as hyperbranched polymers composed of bezene-1,3,5-triyl core units and oligo(benzene-1,4-diyl) as linker units where variation in induction efficiency was rationally interpreted in terms of internal rotation dynamics studied through CPMAS 13C NMR experiments including CODEX measurements.
Collapse
Affiliation(s)
- Yuting Wang
- Institute for Catalysis (ICAT) and Graduate School of Chemical Sciences and Engineering, Hokkaido University, N21W10, Kita-ku, Sapporo 001-0021, Japan.
| | - Koji Yazawa
- JEOL RESONANCE Inc., 3-1-2 Musashino, Akishima, Tokyo 196-8558, Japan
| | - Qingyu Wang
- Institute for Catalysis (ICAT) and Graduate School of Chemical Sciences and Engineering, Hokkaido University, N21W10, Kita-ku, Sapporo 001-0021, Japan.
| | - Takunori Harada
- Department of Integrated Science and Technology, Faculty of Science and Technology, Oita University, Dannoharu, 700, Oita 870-1192, Japan
| | - Shuhei Shimoda
- Technical Division, Institute for Catalysis, Hokkaido University, N21W10, Kita-ku, Sapporo 001-0021, Japan
| | - Zhiyi Song
- Institute for Catalysis (ICAT) and Graduate School of Chemical Sciences and Engineering, Hokkaido University, N21W10, Kita-ku, Sapporo 001-0021, Japan.
| | - Masayoshi Bando
- Institute for Catalysis (ICAT) and Graduate School of Chemical Sciences and Engineering, Hokkaido University, N21W10, Kita-ku, Sapporo 001-0021, Japan.
| | - Naofumi Naga
- Department of Applied Chemistry, College of Engineering, Shibaura Institute of Technology, 3-7-5 Toyosu, Koto-ku, Tokyo 135-8548, Japan
| | - Tamaki Nakano
- Institute for Catalysis (ICAT) and Graduate School of Chemical Sciences and Engineering, Hokkaido University, N21W10, Kita-ku, Sapporo 001-0021, Japan. and Integrated Research Consortium on Chemical Sciences (IRCCS), ICAT, Hokkaido University, Sapporo 001-0021, Japan
| |
Collapse
|
216
|
Das S, Das P, Maity S, Ghosh P, Dutta A. Supramolecular self-assembly of structurally diversified ninhydrin-based molecules. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129033] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
217
|
Xu XH, Liu WB, Song X, Zhou L, Liu N, Zhu YY, Wu ZQ. Chain-end functionalization of living helical polyisocyanides through a Pd( ii)-mediated Sonogashira coupling reaction. Polym Chem 2021. [DOI: 10.1039/d1py00809a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Various functional helical polymers were constructed through chain-end functionalization of living helical polyisocyanides through a Pd(ii)-mediated Sonogashira coupling reaction.
Collapse
Affiliation(s)
- Xun-Hui Xu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009, Anhui Province, China
| | - Wen-Bin Liu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009, Anhui Province, China
| | - Xue Song
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009, Anhui Province, China
| | - Li Zhou
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009, Anhui Province, China
| | - Na Liu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009, Anhui Province, China
| | - Yuan-Yuan Zhu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009, Anhui Province, China
| | - Zong-Quan Wu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009, Anhui Province, China
| |
Collapse
|
218
|
Toya M, Ito H, Itami K. Synthesis and properties of helically-folded poly(arylenediethynylene)s. Polym Chem 2021. [DOI: 10.1039/d1py00144b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three arylenediethnylene-based helical foldamers having pyridine, naphthaleneimide and pyrene cores show unique conformational changes and photophysical properties in various organic solvents.
Collapse
Affiliation(s)
| | - Hideto Ito
- Graduate School of Science
- Nagoya University
- Chikusa
- Japan
- JST-ERATO
| | - Kenichiro Itami
- Graduate School of Science
- Nagoya University
- Chikusa
- Japan
- JST-ERATO
| |
Collapse
|
219
|
Cobos K, Rodríguez R, Quiñoá E, Riguera R, Freire F. From Sergeants and Soldiers to Chiral Conflict Effects in Helical Polymers by Acting on the Conformational Composition of the Comonomers. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009215] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Katherine Cobos
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Rafael Rodríguez
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Emilio Quiñoá
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Ricardo Riguera
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Félix Freire
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| |
Collapse
|
220
|
Martínez‐Aguirre MA, Li Y, Vanthuyne N, Bouteiller L, Raynal M. Dissecting the Role of the Sergeants in Supramolecular Helical Catalysts: From Chain Capping to Intercalation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202012457] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mayte A. Martínez‐Aguirre
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire Equipe Chimie des Polymères 4 Place Jussieu 75005 Paris France
| | - Yan Li
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire Equipe Chimie des Polymères 4 Place Jussieu 75005 Paris France
| | - Nicolas Vanthuyne
- Aix Marseille Université Centrale Marseille CNRS, iSm2, UMR 7313 13397 Marseille Cedex 20 France
| | - Laurent Bouteiller
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire Equipe Chimie des Polymères 4 Place Jussieu 75005 Paris France
| | - Matthieu Raynal
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire Equipe Chimie des Polymères 4 Place Jussieu 75005 Paris France
| |
Collapse
|
221
|
Song Y, Kang S, Kang S, Lee Y. Helicity Control of Polymeric Backbones with Alternating cis-trans Double Bonds in Cyclopolymerized Dipropargyl Amides. Angew Chem Int Ed Engl 2020; 59:22968-22972. [PMID: 32902072 DOI: 10.1002/anie.202008556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Indexed: 11/10/2022]
Abstract
We report the synthesis of new helical polymeric structures having alternating cis and trans double bonds and chiral amino acid side chains by metathesis cyclopolymerization. The polymer helicity, which is generated by the interaction between fluorenylmethyloxycarbonyl (Fmoc) groups in the side chains, is dramatically affected by solvents. A thorough experimental and theoretical analysis including nuclear magnetic resonance, atomic force microscopy, and density functional theory and molecular mechanics calculations suggests that the helicity of both backbone and side chains are determined by anti-syn rotation of the carbamate groups and by the different interactions of the Fmoc groups with solvents.
Collapse
Affiliation(s)
- Youngjun Song
- Department of Chemistry, College of Natural Sciences, Seoul national University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Sunyoung Kang
- Department of Chemistry, College of Natural Sciences, Seoul national University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Sangyoon Kang
- Department of Chemistry, College of Natural Sciences, Seoul national University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Yan Lee
- Department of Chemistry, College of Natural Sciences, Seoul national University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| |
Collapse
|
222
|
Song Y, Kang S, Kang S, Lee Y. Helicity Control of Polymeric Backbones with Alternating
cis
‐
trans
Double Bonds in Cyclopolymerized Dipropargyl Amides. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Youngjun Song
- Department of Chemistry College of Natural Sciences Seoul national University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
| | - Sunyoung Kang
- Department of Chemistry College of Natural Sciences Seoul national University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
| | - Sangyoon Kang
- Department of Chemistry College of Natural Sciences Seoul national University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
| | - Yan Lee
- Department of Chemistry College of Natural Sciences Seoul national University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
| |
Collapse
|
223
|
Gu Y, Liu L, Wang Y, Zhang C, Dong H. Helical Chirality Inversion of Poly(biphenylacetylene) with Hydroxyl Groups Induced by a Single Enantiomer and Memory of the Helices. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c02325] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuanyuan Gu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Lijia Liu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Yudan Wang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Chunhong Zhang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Hongxing Dong
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| |
Collapse
|
224
|
Percec V, Xiao Q, Lligadas G, Monteiro MJ. Perfecting self-organization of covalent and supramolecular mega macromolecules via sequence-defined and monodisperse components. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.123252] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
225
|
Van Zee NJ, Mabesoone MFJ, Adelizzi B, Palmans ARA, Meijer EW. Biasing the Screw-Sense of Supramolecular Coassemblies Featuring Multiple Helical States. J Am Chem Soc 2020; 142:20191-20200. [PMID: 33169999 PMCID: PMC7705959 DOI: 10.1021/jacs.0c10456] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Indexed: 12/15/2022]
Abstract
By enchaining a small fraction of chiral monomer units, the helical sense of a dynamic polymer constructed from achiral monomer units can be disproportionately biased. This phenomenon, known as the sergeants-and-soldiers (S&S) effect, has been found to be widely applicable to dynamic covalent and supramolecular polymers. However, it has not been exemplified with a supramolecular polymer that features multiple helical states. Herein, we demonstrate the S&S effect in the context of the temperature-controlled supramolecular copolymerization of chiral and achiral biphenyl tetracarboxamides in alkanes. The one-dimensional helical structures presented in this study are unique because they exhibit three distinct helical states, two of which are triggered by coassembling with monomeric water that is codissolved in the solvent. The self-assembly pathways are rationalized using a combination of mathematical fitting and simulations with a thermodynamic mass-balance model. We observe an unprecedented case of an "abnormal" S&S effect by changing the side chains of the achiral soldier. Although the molecular structure of these aggregates remains elusive, the coassembly of water is found to have a profound impact on the helical excess.
Collapse
Affiliation(s)
- Nathan J. Van Zee
- Institute
for Complex Molecular Systems and Laboratory of Macromolecular and
Organic Chemistry, Eindhoven University
of Technology, 5600 MB Eindhoven, The Netherlands
- Chimie
Moléculaire, Macromoléculaire, Matériaux, ESPCI
Paris, Université PSL, CNRS, 75005 Paris, France
| | - Mathijs F. J. Mabesoone
- Institute
for Complex Molecular Systems and Laboratory of Macromolecular and
Organic Chemistry, Eindhoven University
of Technology, 5600 MB Eindhoven, The Netherlands
| | - Beatrice Adelizzi
- Institute
for Complex Molecular Systems and Laboratory of Macromolecular and
Organic Chemistry, Eindhoven University
of Technology, 5600 MB Eindhoven, The Netherlands
| | - Anja R. A. Palmans
- Institute
for Complex Molecular Systems and Laboratory of Macromolecular and
Organic Chemistry, Eindhoven University
of Technology, 5600 MB Eindhoven, The Netherlands
| | - E. W. Meijer
- Institute
for Complex Molecular Systems and Laboratory of Macromolecular and
Organic Chemistry, Eindhoven University
of Technology, 5600 MB Eindhoven, The Netherlands
| |
Collapse
|
226
|
Lin M, Wu Q, Li Q, Hou X, Zou H. Synthesis of Dendrimer‐Like Helical Poly(Phenyl Isocyanide)s Using Air‐Stable Palladium Complexes with Double Arms. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.202000362] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Min Lin
- Department of Polymer Science and Engineering School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering Hefei University of Technology 193 Tunxi Road Hefei Anhui Province 230009 China
| | - Qi‐Liang Wu
- Department of Polymer Science and Engineering School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering Hefei University of Technology 193 Tunxi Road Hefei Anhui Province 230009 China
| | - Qian‐Wei Li
- Department of Polymer Science and Engineering School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering Hefei University of Technology 193 Tunxi Road Hefei Anhui Province 230009 China
| | - Xiao‐Hua Hou
- Department of Polymer Science and Engineering School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering Hefei University of Technology 193 Tunxi Road Hefei Anhui Province 230009 China
| | - Hui Zou
- Department of Polymer Science and Engineering School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering Hefei University of Technology 193 Tunxi Road Hefei Anhui Province 230009 China
| |
Collapse
|
227
|
Yin GQ, Kandapal S, Liu CH, Wang H, Huang J, Jiang ST, Ji T, Yan Y, Khalife S, Zhou R, Ye L, Xu B, Yang HB, Nieh MP, Li X. Metallo-Helicoid with Double Rims: Polymerization Followed by Folding by Intramolecular Coordination. Angew Chem Int Ed Engl 2020; 60:1281-1289. [PMID: 33009693 DOI: 10.1002/anie.202010696] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/14/2020] [Indexed: 11/08/2022]
Abstract
In this study, we established a feasible strategy to construct a new type of metallo-polymer with helicoidal structure through the combination of covalent polymerization and intramolecular coordination-driven self-assembly. In the design, a tetratopic monomer (M) was prepared with two terminal alkynes in the outer rim for polymerization, and two terpyridines (TPYs) in the inner rim for subsequent folding by selective intramolecular coordination. Then, the linear covalent polymer (P) was synthesized by polymerization of M via Glaser-Hay homocoupling reaction. Finally, intramolecular coordination interactions between TPYs and Zn(II) folded the backbone of P into a right- or left-handed metallo-helicoid (H) with double rims. Owing to multiple positive charges on the inner rim of helicoid, double-stranded DNA molecules (dsDNA) could interact with H through electrostatic interactions. Remarkably, dsDNA allowed exclusive formation of H with right handedness by means of chiral induction.
Collapse
Affiliation(s)
- Guang-Qiang Yin
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, 518055, China
| | - Sneha Kandapal
- Single Molecule Study Laboratory, College of Engineering and Nanoscale Science and Engineering Center, University of Georgia, Athens, GA, 30602, USA
| | - Chung-Hao Liu
- Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, CT, 06269, USA
| | - Heng Wang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, 518055, China
| | - Jianxiang Huang
- Institute of Quantitative Biology, Zhejiang University, Hangzhou, Zhejiang, 310027, China
| | - Shu-Ting Jiang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, Shanghai, 200062, China
| | - Tan Ji
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, Shanghai, 200062, China
| | - Yu Yan
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Sandra Khalife
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Ruhong Zhou
- Institute of Quantitative Biology, Zhejiang University, Hangzhou, Zhejiang, 310027, China
| | - Libin Ye
- Department of Cell Biology, Microbiology and Molecular Biology, University of South Florida, Tampa, FL, 33620, USA
| | - Bingqian Xu
- Single Molecule Study Laboratory, College of Engineering and Nanoscale Science and Engineering Center, University of Georgia, Athens, GA, 30602, USA
| | - Hai-Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, Shanghai, 200062, China
| | - Mu-Ping Nieh
- Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, CT, 06269, USA.,Polymer Program, Institute of Material Science, University of Connecticut, Storrs, CT, 06269, USA
| | - Xiaopeng Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, 518055, China
| |
Collapse
|
228
|
Zhou L, Xu X, Jiang Z, Xu L, Chu B, Liu N, Wu Z. Selective Synthesis of Single‐Handed Helical Polymers from Achiral Monomer and a Mechanism Study on Helix‐Sense‐Selective Polymerization. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202011661] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Li Zhou
- Department of polymer science and engineering School of chemistry and chemical engineering Anhui Key Lab of Catalytic Materials and Reaction Engineering Hefei university of Technology 193 Tunxi Road, Hefei 230009 Anhui China
| | - Xun‐Hui Xu
- Department of polymer science and engineering School of chemistry and chemical engineering Anhui Key Lab of Catalytic Materials and Reaction Engineering Hefei university of Technology 193 Tunxi Road, Hefei 230009 Anhui China
| | - Zhi‐Qiang Jiang
- Department of polymer science and engineering School of chemistry and chemical engineering Anhui Key Lab of Catalytic Materials and Reaction Engineering Hefei university of Technology 193 Tunxi Road, Hefei 230009 Anhui China
| | - Lei Xu
- Department of polymer science and engineering School of chemistry and chemical engineering Anhui Key Lab of Catalytic Materials and Reaction Engineering Hefei university of Technology 193 Tunxi Road, Hefei 230009 Anhui China
| | - Ben‐Fa Chu
- Department of polymer science and engineering School of chemistry and chemical engineering Anhui Key Lab of Catalytic Materials and Reaction Engineering Hefei university of Technology 193 Tunxi Road, Hefei 230009 Anhui China
| | - Na Liu
- Department of polymer science and engineering School of chemistry and chemical engineering Anhui Key Lab of Catalytic Materials and Reaction Engineering Hefei university of Technology 193 Tunxi Road, Hefei 230009 Anhui China
| | - Zong‐Quan Wu
- Department of polymer science and engineering School of chemistry and chemical engineering Anhui Key Lab of Catalytic Materials and Reaction Engineering Hefei university of Technology 193 Tunxi Road, Hefei 230009 Anhui China
| |
Collapse
|
229
|
De J, Devi M, Shah A, Gupta SP, Bala I, Singh DP, Douali R, Pal SK. Luminescent Conductive Columnar π-Gelators for Fe(II) Sensing and Bio-Imaging Applications. J Phys Chem B 2020; 124:10257-10265. [PMID: 33136408 DOI: 10.1021/acs.jpcb.0c07052] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The high demand and scarcity of luminescent, photoconductive, and transparent gels necessitate its finding as they are potential components in photonic devices such as solar cell concentrators where optical losses via scattering and reabsorption require to be minimized. In this direction, we have reported highly transparent, blue luminescent as well as photoconductive gels exhibiting the hole mobility of 10-3 cm2/V s at ambient temperature as investigated by the time-of-flight technique. The π-driven self-standing supergels were formed using triazole-modified phenylene-vinylene derivatives as gelators in a nonpolar solvent. Different microscopic studies revealed its entangled network of interwoven fibrilar self-assembly and anisotropic order in the gel state. Supramolecular assembly of xerogels, studied by small- and wide-angle X-ray scattering (SAXS/WAXS) suggesting their local columnar hexagonal (Colh) superstructure, is beneficial for conducting gels. Rheological measurements direct the stiffness and robustness of the organogels. In addition, the gelators were developed as a sensing platform for the ultrasensitive detection of Fe(II) ions at ppb level. 1H nuclear magnetic resonance (NMR) titrimetric studies revealed that the interaction of the H-atom of triazole units with Fe(II) is responsible for quenching of blue fluorescence. Also, one of the gelators was successfully applied in bio-imaging using the pollen grains of the Hibiscus rosa-sinensis plant.
Collapse
Affiliation(s)
- Joydip De
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector-81, SAS Nagar, Knowledge City, Manauli 140306, India
| | - Manisha Devi
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector-81, SAS Nagar, Knowledge City, Manauli 140306, India
| | - Asmita Shah
- Univ. Littoral Côte d'Opale, UR 4476, UDSMM, Unité de Dynamique et Structure des Matériaux Moléculaires, F-62228 Calais, France
| | | | - Indu Bala
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector-81, SAS Nagar, Knowledge City, Manauli 140306, India
| | - Dharmendra Pratap Singh
- Univ. Littoral Côte d'Opale, UR 4476, UDSMM, Unité de Dynamique et Structure des Matériaux Moléculaires, F-62228 Calais, France
| | - Redouane Douali
- Univ. Littoral Côte d'Opale, UR 4476, UDSMM, Unité de Dynamique et Structure des Matériaux Moléculaires, F-62228 Calais, France
| | - Santanu Kumar Pal
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector-81, SAS Nagar, Knowledge City, Manauli 140306, India
| |
Collapse
|
230
|
Zhou L, Xu X, Jiang Z, Xu L, Chu B, Liu N, Wu Z. Selective Synthesis of Single‐Handed Helical Polymers from Achiral Monomer and a Mechanism Study on Helix‐Sense‐Selective Polymerization. Angew Chem Int Ed Engl 2020; 60:806-812. [DOI: 10.1002/anie.202011661] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/30/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Li Zhou
- Department of polymer science and engineering School of chemistry and chemical engineering Anhui Key Lab of Catalytic Materials and Reaction Engineering Hefei university of Technology 193 Tunxi Road, Hefei 230009 Anhui China
| | - Xun‐Hui Xu
- Department of polymer science and engineering School of chemistry and chemical engineering Anhui Key Lab of Catalytic Materials and Reaction Engineering Hefei university of Technology 193 Tunxi Road, Hefei 230009 Anhui China
| | - Zhi‐Qiang Jiang
- Department of polymer science and engineering School of chemistry and chemical engineering Anhui Key Lab of Catalytic Materials and Reaction Engineering Hefei university of Technology 193 Tunxi Road, Hefei 230009 Anhui China
| | - Lei Xu
- Department of polymer science and engineering School of chemistry and chemical engineering Anhui Key Lab of Catalytic Materials and Reaction Engineering Hefei university of Technology 193 Tunxi Road, Hefei 230009 Anhui China
| | - Ben‐Fa Chu
- Department of polymer science and engineering School of chemistry and chemical engineering Anhui Key Lab of Catalytic Materials and Reaction Engineering Hefei university of Technology 193 Tunxi Road, Hefei 230009 Anhui China
| | - Na Liu
- Department of polymer science and engineering School of chemistry and chemical engineering Anhui Key Lab of Catalytic Materials and Reaction Engineering Hefei university of Technology 193 Tunxi Road, Hefei 230009 Anhui China
| | - Zong‐Quan Wu
- Department of polymer science and engineering School of chemistry and chemical engineering Anhui Key Lab of Catalytic Materials and Reaction Engineering Hefei university of Technology 193 Tunxi Road, Hefei 230009 Anhui China
| |
Collapse
|
231
|
|
232
|
Cobos K, Rodríguez R, Quiñoá E, Riguera R, Freire F. From Sergeants and Soldiers to Chiral Conflict Effects in Helical Polymers by Acting on the Conformational Composition of the Comonomers. Angew Chem Int Ed Engl 2020; 59:23724-23730. [DOI: 10.1002/anie.202009215] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 09/01/2020] [Indexed: 12/17/2022]
Affiliation(s)
- Katherine Cobos
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Rafael Rodríguez
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Emilio Quiñoá
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Ricardo Riguera
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Félix Freire
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| |
Collapse
|
233
|
Yoshinaga Y, Yamamoto T, Suginome M. Enantioconvergent Cu-Catalyzed Intramolecular C-C Coupling at Boron-Bound C(sp 3) Atoms of α-Aminoalkylboronates Using a C1-Symmetrical 2,2'-Bipyridyl Ligand Attached to a Helically Chiral Macromolecular Scaffold. J Am Chem Soc 2020; 142:18317-18323. [PMID: 33063989 DOI: 10.1021/jacs.0c09080] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Enantioconvergent intramolecular coupling of α-(2-bromobenzoylamino)benzylboronic esters was achieved using a copper catalyst having helically chiral macromolecular bipyridyl ligand, PQXbpy. Racemic α-(2-bromobenzoylamino)benzylboronic esters were converted into (R)-configured 3-arylisoindolinones with high enantiopurity using right-handed helical PQXbpy as a chiral ligand in a toluene/CHCl3 mixed solvent. When enantiopure (R)- and (S)-configured boronates were separately reacted under the same reaction conditions, both afforded (R)-configured products through formal stereoinvertive and stereoretentive processes, respectively. From these results, a mechanism involving deracemization of organocopper intermediates in the presence of PQXbpy is assumed. PQXbpy switched its helical sense to left-handed when a toluene/1,1,2-trichloroethane mixed solvent was used, resulting in the formation of the corresponding (S)-products from the racemic starting material.
Collapse
Affiliation(s)
- Yukako Yoshinaga
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Takeshi Yamamoto
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Michinori Suginome
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| |
Collapse
|
234
|
Yan X, Wang Q, Chen X, Jiang YB. Supramolecular Chiral Aggregates Exhibiting Nonlinear CD-ee Dependence. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1905667. [PMID: 32876956 DOI: 10.1002/adma.201905667] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 08/09/2020] [Indexed: 06/11/2023]
Abstract
Although a linear relationship between the optical activity (normally the CD signal) and the enantiomeric excess (ee) of chiral auxiliaries has been the most commonly observed dependence in dynamic supramolecular helical aggregates, positive nonlinear CD-ee dependence, known as the "majority-rules effect" (MRE), indicative of chiral amplification, has also been well documented and to some extent understood. In sharp contrast, the negative nonlinear CD-ee dependence has been much less reported and is not well understood. Here, the state of the art of both the positive and negative nonlinear CD-ee dependence in noncovalently bound supramolecular helical aggregates is summarized, with the hope that the vast examples of supramolecular aggregates showing positive nonlinear dependence, in terms of the methods of investigations, variations in the structure of the building block (single species or multiple species), and theoretical modeling using the mismatch penalty energy and helix reversal penalty energy, would help to guide the design of building blocks to form aggregates showing negative nonlinear dependence, and thus to understand the mechanisms. The potential applications of those functional supramolecular aggregates are also discussed.
Collapse
Affiliation(s)
- Xiaosheng Yan
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, iChEM, Xiamen University, Xiamen, 361005, China
| | - Qian Wang
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, iChEM, Xiamen University, Xiamen, 361005, China
| | - Xuanxuan Chen
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, iChEM, Xiamen University, Xiamen, 361005, China
| | - Yun-Bao Jiang
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, iChEM, Xiamen University, Xiamen, 361005, China
| |
Collapse
|
235
|
Shen B, Kim Y, Lee M. Supramolecular Chiral 2D Materials and Emerging Functions. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1905669. [PMID: 32009269 DOI: 10.1002/adma.201905669] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 12/16/2019] [Indexed: 06/10/2023]
Abstract
Chiral materials are widely applied in various fields such as enantiomeric separation, asymmetric catalysis, and chiroptical effects, providing stereospecific conditions and environments. Supramolecular concepts to create the chiral materials can provide an insight for emerging chiro-optical properties due to their well-defined scaffolds and the precise functionalization of the surfaces or skeletons. Among the various supramolecular chiral structures, 2D chiral sheet structures are particularly interesting materials because of their extremely high surface area coupled with many unique chemical and physical properties, thereby offering potential for the next generation of functional materials for optically active systems and optoelectronic devices. Nevertheless, relatively limited examples for 2D chiral materials exhibiting specific functionality have been reported because incorporation of molecular chirality into 2D architectures is difficult at the present stage. Here, a brief overview of the recent advances is provided on the construction of chiral supramolecular 2D materials and their functions. The design principles toward 2D chirality and their potential applications are also discussed.
Collapse
Affiliation(s)
- Bowen Shen
- State Key Lab of 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, Seoul, 02841, Republic of Korea
| | - Myongsoo Lee
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China
- Department of Chemistry, Fudan University, Shanghai, 200438, China
| |
Collapse
|
236
|
|
237
|
Henderson WR, Castellano RK. Supramolecular polymerization of chiral molecules devoid of chiral centers. POLYM INT 2020. [DOI: 10.1002/pi.6111] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
238
|
Albano G, Pescitelli G, Di Bari L. Chiroptical Properties in Thin Films of π-Conjugated Systems. Chem Rev 2020; 120:10145-10243. [PMID: 32892619 DOI: 10.1021/acs.chemrev.0c00195] [Citation(s) in RCA: 239] [Impact Index Per Article: 59.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Chiral π-conjugated molecules provide new materials with outstanding features for current and perspective applications, especially in the field of optoelectronic devices. In thin films, processes such as charge conduction, light absorption, and emission are governed not only by the structure of the individual molecules but also by their supramolecular structures and intermolecular interactions to a large extent. Electronic circular dichroism, ECD, and its emission counterpart, circularly polarized luminescence, CPL, provide tools for studying aggregated states and the key properties to be sought for designing innovative devices. In this review, we shall present a comprehensive coverage of chiroptical properties measured on thin films of organic π-conjugated molecules. In the first part, we shall discuss some general concepts of ECD, CPL, and other chiroptical spectroscopies, with a focus on their applications to thin film samples. In the following, we will overview the existing literature on chiral π-conjugated systems whose thin films have been characterized by ECD and/or CPL, as well other chiroptical spectroscopies. Special emphasis will be put on systems with large dissymmetry factors (gabs and glum) and on the application of ECD and CPL to derive structural information on aggregated states.
Collapse
Affiliation(s)
- Gianluigi Albano
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Giuseppe Moruzzi 13, 56124 Pisa, Italy
| | - Gennaro Pescitelli
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Giuseppe Moruzzi 13, 56124 Pisa, Italy
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Giuseppe Moruzzi 13, 56124 Pisa, Italy
| |
Collapse
|
239
|
Geng K, Arumugam V, Xu H, Gao Y, Jiang D. Covalent organic frameworks: Polymer chemistry and functional design. Prog Polym Sci 2020. [DOI: 10.1016/j.progpolymsci.2020.101288] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
|
240
|
Lu N, Gao X, Pan M, Zhao B, Deng J. Aggregation-Induced Emission-Active Chiral Helical Polymers Show Strong Circularly Polarized Luminescence in Thin Films. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00638] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Na Lu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xiaobin Gao
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Ming Pan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Biao Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jianping Deng
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| |
Collapse
|
241
|
Cheng X, Miao T, Qian Y, Zhang Z, Zhang W, Zhu X. Supramolecular Chirality in Azobenzene-Containing Polymer System: Traditional Postpolymerization Self-Assembly Versus In Situ Supramolecular Self-Assembly Strategy. Int J Mol Sci 2020; 21:E6186. [PMID: 32867119 PMCID: PMC7503415 DOI: 10.3390/ijms21176186] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/22/2020] [Accepted: 07/31/2020] [Indexed: 02/03/2023] Open
Abstract
Recently, the design of novel supramolecular chiral materials has received a great deal of attention due to rapid developments in the fields of supramolecular chemistry and molecular self-assembly. Supramolecular chirality has been widely introduced to polymers containing photoresponsive azobenzene groups. On the one hand, supramolecular chiral structures of azobenzene-containing polymers (Azo-polymers) can be produced by nonsymmetric arrangement of Azo units through noncovalent interactions. On the other hand, the reversibility of the photoisomerization also allows for the control of the supramolecular organization of the Azo moieties within polymer structures. The construction of supramolecular chirality in Azo-polymeric self-assembled system is highly important for further developments in this field from both academic and practical points of view. The postpolymerization self-assembly strategy is one of the traditional strategies for mainly constructing supramolecular chirality in Azo-polymers. The in situ supramolecular self-assembly mediated by polymerization-induced self-assembly (PISA) is a facile one-pot approach for the construction of well-defined supramolecular chirality during polymerization process. In this review, we focus on a discussion of supramolecular chirality of Azo-polymer systems constructed by traditional postpolymerization self-assembly and PISA-mediated in situ supramolecular self-assembly. Furthermore, we will also summarize the basic concepts, seminal studies, recent trends, and perspectives in the constructions and applications of supramolecular chirality based on Azo-polymers with the hope to advance the development of supramolecular chirality in chemistry.
Collapse
Affiliation(s)
| | | | | | | | - Wei Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China; (X.C.); (T.M.); (Y.Q.); (Z.Z.); (X.Z.)
| | | |
Collapse
|
242
|
Zang Y, Lun Y, Teraguchi M, Kaneko T, Jia H, Miao F, Zhang X, Aoki T. Synthesis of Cis-Cisoid or Cis-Transoid Poly(Phenyl-Acetylene)s Having One or Two Carbamate Groups as Oxygen Permeation Membrane Materials. MEMBRANES 2020; 10:E199. [PMID: 32854258 PMCID: PMC7557842 DOI: 10.3390/membranes10090199] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/17/2020] [Accepted: 08/21/2020] [Indexed: 11/16/2022]
Abstract
Three new phenylacetylene monomers having one or two carbamate groups were synthesized and polymerized by using (Rh(norbornadiene)Cl)2 as an initiator. The resulting polymers had very high average molecular weights (Mw) of 1.4-4.8 × 106, with different solubility and membrane-forming abilities. The polymer having two carbamate groups and no hydroxy groups in the monomer unit showed the best solubility and membrane-forming ability among the three polymers. In addition, the oxygen permeability coefficient of the membrane was more than 135 times higher than that of a polymer having no carbamate groups and two hydroxy groups in the monomer unit with maintaining similar oxygen permselectivity. A better performance in membrane-forming ability and oxygen permeability may be caused by a more extended and flexible cis-transoid conformation and lower polarity. On the other hand, the other two new polymers having one carbamate group and two hydroxy groups in the monomer unit showed lower performances in membrane-forming abilities and oxygen permeabilities. It may be caused by a very tight cis-cisoid conformation, which was maintained by intramolecular hydrogen bonds.
Collapse
Affiliation(s)
- Yu Zang
- Key laboratory of polymer matrix composites, Heilongjiang Province, College of Materials Science and Engineering, Qiqihar University, Wenhua Street 42, Qiqihar, Heilongjiang 161006, China; (H.J.); (X.Z.); (T.A.)
| | - Yinghui Lun
- Department of Materials and Chemical Engineering, Hunan Institute of Technology, Hengyang, Hunan 421002, China;
| | - Masahiro Teraguchi
- Chemistry and Chemical Engineering, Graduate School of Science and Technology, Niigata University, Ikarashi 2-8050, Nishi-ku, Niigata 950-2181, Japan; (M.T.); (T.K.)
| | - Takashi Kaneko
- Chemistry and Chemical Engineering, Graduate School of Science and Technology, Niigata University, Ikarashi 2-8050, Nishi-ku, Niigata 950-2181, Japan; (M.T.); (T.K.)
| | - Hongge Jia
- Key laboratory of polymer matrix composites, Heilongjiang Province, College of Materials Science and Engineering, Qiqihar University, Wenhua Street 42, Qiqihar, Heilongjiang 161006, China; (H.J.); (X.Z.); (T.A.)
| | - Fengjuan Miao
- College of Communications and Electronics Engineering, Qiqihar University, Wenhua Street 42, Qiqihar, Heilongjiang 161006, China;
| | - Xunhai Zhang
- Key laboratory of polymer matrix composites, Heilongjiang Province, College of Materials Science and Engineering, Qiqihar University, Wenhua Street 42, Qiqihar, Heilongjiang 161006, China; (H.J.); (X.Z.); (T.A.)
| | - Toshiki Aoki
- Key laboratory of polymer matrix composites, Heilongjiang Province, College of Materials Science and Engineering, Qiqihar University, Wenhua Street 42, Qiqihar, Heilongjiang 161006, China; (H.J.); (X.Z.); (T.A.)
- Chemistry and Chemical Engineering, Graduate School of Science and Technology, Niigata University, Ikarashi 2-8050, Nishi-ku, Niigata 950-2181, Japan; (M.T.); (T.K.)
| |
Collapse
|
243
|
Tang Z, Xu Z, Cai C, Lin J, Yao Y, Yang C, Tian X. 2D Chiral Stripe Nanopatterns Self-Assembled from Rod-Coil Block Copolymers on Microstripes. Macromol Rapid Commun 2020; 41:e2000349. [PMID: 32830421 DOI: 10.1002/marc.202000349] [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: 06/30/2020] [Revised: 08/09/2020] [Indexed: 12/11/2022]
Abstract
Chiral nanoarchitectures usually possess unique and intriguing properties. However, the construction of 2D chiral nanopatterns through polymer self-assembly is a challenge. Reported herein is the formation of chiral stripe nanopatterns through surface self-assembly of polypeptide-based rod-coil block copolymers on microstripes. The nanostripes align oblique to the boundary of the microstripes, resulting in the chirality of the nanopatterns. The chirality of the nanopatterns is closely related to the width of the microstripes, i.e., a narrower width results in higher chirality. Besides, the chiral sense of the nanopatterns can be regulated by the chirality of the polypeptide blocks. This work demonstrates the transmission of chirality from polymer to nanoarchitecture on a confined surface, which can guide the preparation of nanopatterns with tuned chiral features.
Collapse
Affiliation(s)
- Zhengmin Tang
- Z. Tang, Dr. Z. Xu, Prof. C. Cai, Prof. J. Lin, Prof. Y. Yao, Prof. X. Tian, Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Zhanwen Xu
- Z. Tang, Dr. Z. Xu, Prof. C. Cai, Prof. J. Lin, Prof. Y. Yao, Prof. X. Tian, Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Chunhua Cai
- Z. Tang, Dr. Z. Xu, Prof. C. Cai, Prof. J. Lin, Prof. Y. Yao, Prof. X. Tian, Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Jiaping Lin
- Z. Tang, Dr. Z. Xu, Prof. C. Cai, Prof. J. Lin, Prof. Y. Yao, Prof. X. Tian, Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Yuan Yao
- Z. Tang, Dr. Z. Xu, Prof. C. Cai, Prof. J. Lin, Prof. Y. Yao, Prof. X. Tian, Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Chunming Yang
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, China
| | - Xiaohui Tian
- Z. Tang, Dr. Z. Xu, Prof. C. Cai, Prof. J. Lin, Prof. Y. Yao, Prof. X. Tian, Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| |
Collapse
|
244
|
Schraff S, Kreienborg NM, Trampert J, Sun Y, Orthaber A, Merten C, Pammer F. Asymmetric chain‐growth synthesis of polyisocyanide with chiral nickel
precatalysts. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200153] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sandra Schraff
- Institute of Organic Chemistry II and Advanced MaterialsUniversity of Ulm Ulm Germany
| | - Nora M. Kreienborg
- Organic Chemistry II, Ruhr University BochumFaculty of Chemistry and Biochemistry Bochum Germany
| | - Jens Trampert
- Institute of Organic Chemistry II and Advanced MaterialsUniversity of Ulm Ulm Germany
| | - Yu Sun
- Fachbereich Chemie, Anorganische ChemieTechnische Universität Kaiserslautern Kaiserslautern Germany
| | - Andreas Orthaber
- Department of Chemistry—Ångström laboratoriesUppsala University Uppsala Sweden
| | - Christian Merten
- Organic Chemistry II, Ruhr University BochumFaculty of Chemistry and Biochemistry Bochum Germany
| | - Frank Pammer
- Institute of Organic Chemistry II and Advanced MaterialsUniversity of Ulm Ulm Germany
| |
Collapse
|
245
|
Qin R, Liu K, Wu Q, Zheng N. Surface Coordination Chemistry of Atomically Dispersed Metal Catalysts. Chem Rev 2020; 120:11810-11899. [DOI: 10.1021/acs.chemrev.0c00094] [Citation(s) in RCA: 171] [Impact Index Per Article: 42.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ruixuan Qin
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and National & Local Joint Engineering Research Center for Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Kunlong Liu
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and National & Local Joint Engineering Research Center for Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Qingyuan Wu
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and National & Local Joint Engineering Research Center for Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Nanfeng Zheng
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and National & Local Joint Engineering Research Center for Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| |
Collapse
|
246
|
Liu Q, Xia Q, Xiong Y, Li BS, Tang BZ. Circularly Polarized Luminescence and Tunable Helical Assemblies of Aggregation-Induced Emission Amphiphilic Polytriazole Carrying Chiral l-Phenylalanine Pendants. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01140] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Qiuming Liu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
- Guangdong Innovative Research Team, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
- Hong Kong University of Science & Technology (HKUST)-Shenzhen Research Institute, No. 9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan, Shenzhen 518057, China
| | - Qing Xia
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Yu Xiong
- Guangdong Innovative Research Team, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
| | - Bing Shi Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Ben Zhong Tang
- Guangdong Innovative Research Team, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
- Hong Kong University of Science & Technology (HKUST)-Shenzhen Research Institute, No. 9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan, Shenzhen 518057, China
- Department of Chemistry, Institute for Advanced Study, Institute of Molecular Functional Materials and State Key Laboratory of Molecular Neuroscience, HKUST, Clear Water Bay, Kowloon, Hong Kong China
| |
Collapse
|
247
|
Zhao T, Han J, Duan P, Liu M. New Perspectives to Trigger and Modulate Circularly Polarized Luminescence of Complex and Aggregated Systems: Energy Transfer, Photon Upconversion, Charge Transfer, and Organic Radical. Acc Chem Res 2020; 53:1279-1292. [PMID: 32649172 DOI: 10.1021/acs.accounts.0c00112] [Citation(s) in RCA: 142] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Chiral functional materials with circularly polarized luminescence (CPL) have risen rapidly in recent years because of their fascinating characteristics and potential applications in various research fields. CPL refers to the differential spontaneous emission of left (L)- and right (R)-handed circularly polarized light upon photon or electron excitation. Generally, an outstanding CPL-active material needs to possess a high luminescence dissymmetry factor (glum) (defined as 2(IL - IR)/(IL + IR) where I is the emission intensity), which is between -2 and +2. Although the exciting development in CPL-active materials was achieved, the modulation of CPL signs is still a challenge. For small organic systems, a relatively small glum value, one of the key parameters of CPL, limits their practical applications. Searching for efficient approaches for amplifying glum is important. Therefore, over the past decades, besides optimizing the structure of small molecules, many other strategies to obtain efficient CPL-active materials have been developed. For instance, self-assembly has been well demonstrated as an effective approach to amplify the supramolecular chirality as well as the glum values. On the other hand, chiral liquid crystals (CLCs), which are capable of selective reflection of left- and right-handed circularly polarized light, also to serve as a host matrix for endowing guest emitters with CPL activity and high glum values. However, self-assembly focuses on modulating the conformation and spatial arrangement of chiral emitters. And the CPL of a luminophore-doped CLC matrix depends on the helix pitch and band gap positions. Lately, novel photophysical approaches to modulate CPL signs have gradually emerged.In this Account, we discuss the recent progress of excited-state-regulation involved CPL-active materials. The emergence, amplification, and inversion of CPL can be adjusted through regulation of the excited state of chiral emitters. For example, Förster resonance energy transfer (FRET) can amplify the glum values of chiral energy acceptors in chiral supramolecular assemblies. By combining the concepts of photon upconversion and CPL, high-energy upconverted circularly polarized emission was achieved under excitation of low-energy light, accompanied by an amplified glum. In addition, the organic systems with unpaired electrons, i.e., charge transfer (CT) system and open-shell π-radical, show favorable CPL properties, which can be flexibly tuned with an applied magnetic field. It should be noted that these photophysical process are associated with the excited state of chiral emitters. So far, while the main focus is on the regulation of the molecular and supramolecular nanostructures, direct regulation of the excited state of the chiral system will serve as a new platform to understand and regulate the CPL activity and will be helpful to develop smart chiroptical materials.
Collapse
Affiliation(s)
- Tonghan Zhao
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology (NCNST), No.11, ZhongGuanCun BeiYiTiao, Beijing 100190, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jianlei Han
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology (NCNST), No.11, ZhongGuanCun BeiYiTiao, Beijing 100190, P.R. China
| | - Pengfei Duan
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology (NCNST), No.11, ZhongGuanCun BeiYiTiao, Beijing 100190, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Minghua Liu
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology (NCNST), No.11, ZhongGuanCun BeiYiTiao, Beijing 100190, P.R. China
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, No.2, ZhongGuanCun BeiYiJie, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| |
Collapse
|
248
|
Huang J, Wu C, Tang S, Zhou P, Deng J, Zhang Z, Wang Y, Wang Z. Chiral Active β-Glucan Nanoparticles for Synergistic Delivery of Doxorubicin and Immune Potentiation. Int J Nanomedicine 2020; 15:5083-5095. [PMID: 32764938 PMCID: PMC7368591 DOI: 10.2147/ijn.s258145] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 06/11/2020] [Indexed: 12/27/2022] Open
Abstract
Background β-glucans are chiral polysaccharides with well-defined immunological properties and supramolecular wrapping ability of its chiral feature. However, the exploitation of chiral properties of these nanoparticles in drug delivery systems was seldom conducted. Methods β-glucan molecules with different chain lengths were extracted from yeast Saccharomyces cerevisiae and thereafter modified. In a conformation transition process, these β-glucan molecules were then self-assembled with anti-cancer drug doxorubicin into nanoparticles to construct drug delivery systems. The chiral interactions between the drug and carriers were revealed by circular dichroism spectra, ultraviolet and visible spectrum, fourier transform infrared spectroscopy, dynamic light scattering and transmission electron microscope. The immune-potentiation properties of modified β-glucan nanoparticles were evaluated by analysis of the mRNA expression in RAW264.7 cell model. Further, the antitumor efficacy of the nanoparticles against the human breast cancer were studied in MCF-7 cell model by cellular uptake and cytotoxicity experiments. Results β-glucan nanoparticles can activate macrophages to produce immune enhancing cytokines (IL-1β, IL-6, TNF-α, IFN-γ). A special chirality of the carriers in diameter of 50~160 nm can also associate with higher drug loading ability of 13.9% ~38.2% and pH-sensitive release with a change of pH from 7.4 to 5.0. Cellular uptake and cytotoxicity experiments also prove that the chiral-active β-glucan nanoparticles can be used in anti-cancer nanomedicine. Conclusion This work demonstrates that β-glucans nanoparticles with special chiral feature which leading to strong immunopotentiation ability and high drug loading efficiency can be developed as a novel type of nanomedicine for anti-cancer treatment.
Collapse
Affiliation(s)
- Jintao Huang
- Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510632, People's Republic of China
| | - Chaoxi Wu
- Guangzhou Jinan Biomedicine Research and Development Center, Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou 510632, People's Republic of China
| | - Shunqing Tang
- Biomedical Engineering Institute, Jinan University, Guangzhou 510632, People's Republic of China
| | - Pengjun Zhou
- Guangzhou Jinan Biomedicine Research and Development Center, Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou 510632, People's Republic of China
| | - Jianping Deng
- Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510632, People's Republic of China
| | - Zhen Zhang
- Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510632, People's Republic of China
| | - Yifei Wang
- Guangzhou Jinan Biomedicine Research and Development Center, Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou 510632, People's Republic of China
| | - Zhiping Wang
- Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510632, People's Republic of China
| |
Collapse
|
249
|
Xu G, Liu K, Xu B, Yao Y, Li W, Yan J, Zhang A. Confined Microenvironments from Thermoresponsive Dendronized Polymers. Macromol Rapid Commun 2020; 41:e2000325. [PMID: 32639094 DOI: 10.1002/marc.202000325] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 06/23/2020] [Indexed: 11/07/2022]
Abstract
Confined microenvironments in biomacromolecules arising from molecular crowding account for their well-defined biofunctions and bioactivities. To mimick this, synthetic polymers to form confined structures or microenvironments are of key scientific value, which have received significant attention recently. To create synthetic confined microenvironments, molecular crowding effects and topological cooperative effects have been applied successfully, and the key is balance between self-association of structural units and self-repulsion from crowding-induced steric hindrance. In this article, formation of confined microenvironments from stimuli-responsive dendronized polymers carrying densely dendritic oligoethylene glycols (OEGs) moieties in their pendants is presented. These wormlike thick macromolecules exhibit characteristic thermoresponsive properties, which can provide constrained microenvironments to encapsulate effectively guest molecules including dyes, proteins, or nucleic acids to prevent their protonation or biodegradation. This efficient shielding effect can also mediate chemical reactions in aqueous phase, and even enhance chirality transferring efficiency. All of these can be switched off simply through the thermally-induced dehydration and collapse of OEG dendrons due to the amphiphilicity of OEG chains. Furthermore, the switchable encapsulation and release of guests can be greatly enhanced when these dendronized polymers are used as major constituents for fabricating bulk hydrogels or nanogels, which provide a higher-level confinement.
Collapse
Affiliation(s)
- Gang Xu
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Kun Liu
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Biyi Xu
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Yi Yao
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Wen Li
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Jiatao Yan
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Afang Zhang
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| |
Collapse
|
250
|
Nozaki M, Hirose D, Maeda K. Synthesis of a poly(diphenylacetylene) bearing optically active anilide pendants and its application to a chiral stationary phase for high-performance liquid chromatography. J Chromatogr A 2020; 1622:461173. [PMID: 32450987 DOI: 10.1016/j.chroma.2020.461173] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 04/23/2020] [Accepted: 04/25/2020] [Indexed: 02/02/2023]
Abstract
Poly(diphenylacetylene) having optically active anilide pendants (poly-1) were synthesized by the condensation reaction of an optically active carboxylic acid with a key precursor polymer containing amino (-NH2) groups, which was prepared by the polymerization of a phthalimide-protected diphenylacetylene monomer using WCl6-Ph4Sn as a catalyst, followed by phthalimide deprotection in the resulting polymer using hydrazine monohydrate. Poly-1 formed a preferred-handed helical conformation (h-poly-1) upon thermal annealing in DMF because of chirality of the pendant group. Poly-1 and h-poly-1 showed different chiral recognition abilities from the analogous poly(diphenylacetylene)s, having the corresponding optically active amide pendants, as chiral stationary phases (CSPs) for high-performance liquid chromatography. The resolution results with the h-poly-1-based CSP were much better than those with the poly-1-based CSP owing to the preferred-handed macromolecular helicity. Among the tested racemates, the h-poly-1-based CSP exhibited superior chiral recognition ability, especially toward binaphthyl compounds and chiral metal complexes.
Collapse
Affiliation(s)
- Mai Nozaki
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Daisuke Hirose
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Katsuhiro Maeda
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
| |
Collapse
|