1
|
Lee S, Song G, Jeong KS. Stimuli-Responsive Molecular Duplexes Displaying Duplex-to-Duplex Switching. Angew Chem Int Ed Engl 2024; 63:e202410884. [PMID: 38937392 DOI: 10.1002/anie.202410884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Revised: 06/27/2024] [Accepted: 06/27/2024] [Indexed: 06/29/2024]
Abstract
Synthetic duplexes with high stabilities have promising potential for mimicking biomolecular functions and developing supramolecular smart materials. Herein, we describe the synthesis and stimuli-responsive properties of molecular duplexes derived from indolocarbazole-pyridine (I-P) oligomers. These duplexes adopt nonclassical helical structures, stabilized by I-P hydrogen-bonding pairs in anhydrous chlorinated solvents. Notably, the longest duplex 62 (11-mer)2 displays remarkable stability, forming twenty hydrogen bonds; its exchange energy barrier was determined to be ΔG≠=22.0 kcal ⋅ mol-1 at 75 °C in anhydrous (CDCl2)2. Upon the addition of water, a hydrated duplex 62 (11-mer)2⊃10H2O was formed, with one water molecule inserted between each I-P hydrogen-bonding pair. The Hill coefficient (n) for this process is 6.1, demonstrating extremely positive cooperativity. Conversely, the hydrated duplex 62 (11-mer)2⊃10H2O was completely converted into the original anhydrous duplex 62 (11-mer)2 when the temperature was increased. Interconversion between these two distinct duplexes can be repeatedly carried out by varying the temperature. Furthermore, reversible switching between hetero-duplexes and homo-duplexes was also demonstrated by controlling the temperature, with concomitant changes in the characteristic emission signals.
Collapse
Affiliation(s)
- Seungwon Lee
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea
| | - Geunmoo Song
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea
| | - Kyu-Sung Jeong
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea
| |
Collapse
|
2
|
Wang Y, Li C, Zheng X. Markov State Models Reveal How Folding Kinetics Influence Absorption Spectra of Foldamers. J Chem Theory Comput 2024; 20:5396-5407. [PMID: 38900275 DOI: 10.1021/acs.jctc.4c00202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Self-assembly of platinum(II) complex foldamers is an essential approach to fabricate advanced luminescent materials. However, a comprehensive understanding of folding kinetics and their absorption spectra remains elusive. By constructing Markov state models (MSMs) from large-scale molecular dynamics simulations, we reveal that two largely similar dinuclear alknylplatinum(II) terpyridine foldamers, Pt-PEG and Pt-PE with slightly different bridges, exhibit distinctive folding kinetics. Particularly, Pt-PEG bears bridge-dominant, plane-dominant, and cooperative pathways, while Pt-PE only prefers the plane-dominant pathway. Such preference originates from their difference in intrabridge electrostatic interactions, leading to contrastive distributions of metastable states. We also found that the bridge-dominant pathway for Pt-PEG becomes more favorable when lowering the temperature. Interestingly, based on the comprehensive conformation ensembles from our MSMs, we reveal the conformation-dependent absorption spectra of Pt-PEG and Pt-PE. Our theoretical spectra not only align with experimental results but also reveal the contributions of diverse conformations to the overall absorption bands explicitly, facilitating the rational design of stimuli-responsive smart luminescent molecules.
Collapse
Affiliation(s)
- Yijia Wang
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Medicinal Molecule Science and Pharmaceutics Engineering of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Chu Li
- Department of Chemistry, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Xiaoyan Zheng
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Medicinal Molecule Science and Pharmaceutics Engineering of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| |
Collapse
|
3
|
Yang Y, Xue M. Herringbone Helical Foldamers from Aromatic Ether Derived ϵ-Amino Acid Peptides. Chemistry 2023; 29:e202301832. [PMID: 37641870 DOI: 10.1002/chem.202301832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 08/28/2023] [Accepted: 08/29/2023] [Indexed: 08/31/2023]
Abstract
Oligomers based on an aromatic ether derived ϵ-amino acid peptides folded into herringbone helical structures, induced by successive NH-O-NH & O-NH-O bifurcated hydrogen bonding interactions and reinforced by π-π stacking between aryls from adjacent layers. The diaryl ether bonds -O- worked both as structural units to provide turn motifs for changing the amplitude of the slope along the axis of helix for herringbone formation, and also as acceptors for hydrogen bonding. Attachment of a single chiral carbon to the C-termini of the peptides induced excess of single-handed screw sense and amplification through the chain propagation as exemplified by chain length dependent circular dichroism (CD) investigations.
Collapse
Affiliation(s)
- Yong Yang
- School of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Min Xue
- School of Science, Department of Physics, Key Laboratory of Optical Field Manipulation of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| |
Collapse
|
4
|
Pike SJ, Telford R, Male L. Reversible conformational switching of a photo-responsive ortho-azobenzene/2,6-pyridyldicarboxamide heterofoldamer. Org Biomol Chem 2023; 21:7717-7723. [PMID: 37565617 DOI: 10.1039/d3ob01137b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
We report on a convenient synthetic route to rapidly access a new photo-responsive ortho-azobenzene/2,6-pyridyldicarboxamide heterofoldamer. The adoption of a stable helical conformation has been established for this scaffold in both the solid state and in solution using single crystal X-ray diffraction and circular dichroism (CD) spectroscopy respectively. Reversible control over the stimuli-driven structural re-ordering of the supramolecular scaffold, from a stable helical conformation under non-irradiative conditions, to a less well-ordered state under irradiative conditions, has been identified. The robust nature of the responsive, conformational, molecular switching behaviour has been determined using UV/Vis, 1H NMR and CD spectroscopy. Minimal loss in the efficiency of the stimuli-driven, structural re-ordering processes of the foldamer scaffold is observed, even upon multiple cyclic treatments with irradiative/non-irradiative conditions.
Collapse
Affiliation(s)
- Sarah J Pike
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
- School of Chemistry and Biosciences, Faculty of Life Sciences, University of Bradford, Bradford, West Yorkshire, BD7 1DP, UK
| | - Richard Telford
- School of Chemistry and Biosciences, Faculty of Life Sciences, University of Bradford, Bradford, West Yorkshire, BD7 1DP, UK
| | - Louise Male
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
| |
Collapse
|
5
|
Formation of supramolecular channels by reversible unwinding-rewinding of bis(indole) double helix via ion coordination. Nat Commun 2022; 13:6507. [PMID: 36316309 PMCID: PMC9622825 DOI: 10.1038/s41467-022-34159-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 10/14/2022] [Indexed: 12/03/2022] Open
Abstract
Stimulus-responsive reversible transformation between two structural conformers is an essential process in many biological systems. An example of such a process is the conversion of amyloid-β peptide into β-sheet-rich oligomers, which leads to the accumulation of insoluble amyloid in the brain, in Alzheimer's disease. To reverse this unique structural shift and prevent amyloid accumulation, β-sheet breakers are used. Herein, we report a series of bis(indole)-based biofunctional molecules, which form a stable double helix structure in the solid and solution state. In presence of chloride anion, the double helical structure unwinds to form an anion-coordinated supramolecular polymeric channel, which in turn rewinds upon the addition of Ag+ salts. Moreover, the formation of the anion-induced supramolecular ion channel results in efficient ion transport across lipid bilayer membranes with excellent chloride selectivity. This work demonstrates anion-cation-assisted stimulus-responsive unwinding and rewinding of artificial double-helix systems, paving way for smart materials with better biomedical applications.
Collapse
|
6
|
Jang HJ, Lee S, An BJ, Song G, Jeon HG, Jeong KS. Tweezer-type binding cavity formed by the helical folding of a carbazole-pyridine oligomer. Chem Commun (Camb) 2022; 58:1410-1413. [PMID: 34994755 DOI: 10.1039/d1cc06569f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We have synthesised a new aromatic foldamer based on the carbazole-pyridine oligomers that adopt helical conformations via dipole-dipole interactions and π-stacking between two ethynyl bond-linked monomers. This foldamer scaffold has been further modified into a synthetic receptor with a tweezer-type binding cavity outside the helical backbone upon folding, in contrast to most aromatic foldamers with internal binding cavities. The tweezer-type cavity is composed of two parallel pyrenyl planes, allowing for the intercalation of a naphthalenediimide guest via π-stacking and CH⋯O interactions, as demonstrated using its 1H NMR spectra and X-ray crystal structure.
Collapse
Affiliation(s)
- Hye Jin Jang
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea.
| | - Seungwon Lee
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea.
| | - Byung Jun An
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea.
| | - Geunmoo Song
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea.
| | - Hae-Geun Jeon
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea.
| | - Kyu-Sung Jeong
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea.
| |
Collapse
|
7
|
Moreno K, Merlet E, McClenaghan N, Buffeteau T, Ferrand Y, Olivier C. Influence of Positional Isomerism on the Chiroptical Properties of Functional Aromatic Oligoamide Foldamers. Chempluschem 2021; 86:496-503. [PMID: 33755326 DOI: 10.1002/cplu.202100051] [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: 02/01/2021] [Revised: 03/08/2021] [Indexed: 12/25/2022]
Abstract
A series of functionalized quinoline-based aromatic oligoamide foldamers were prepared in their two enantiomeric forms, comprising an enantiopure terminal camphanyl chiral inducer, which governed the adjacent (P-/M-) helical-handedness. Hierarchical chirality transfer was further investigated in chromophore-appended variants via a range of electronic and vibrational spectroscopic techniques, including circularly polarized luminescence, vibrational circular dichroism and fluorescence. Intense total and polarized photoluminescence (up to Φlum =0.39, glum =1.5×10-3 ) was observed in the visible region from these modular multicomponent architectures and a significant influence of positional isomerism was evidenced. The optimal position of a fluorophore substituent on the quinoline hexamers was determined as being position 2 over position 6, as stronger chiroptical features were systematically observed with the 2-positioned derivatives.
Collapse
Affiliation(s)
- Kevin Moreno
- Institut des Sciences Moléculaires, UMR 5255 CNRS, Université de Bordeaux, 351 Cours de la Libération, 33405, Talence Cedex, France
| | - Eric Merlet
- Institut de Chimie et Biologie des Membranes et des Nano-objets, UMR 5248 CNRS, Université de Bordeaux, 2 rue Robert Escarpit, 33600, Pessac, France
| | - Nathan McClenaghan
- Institut des Sciences Moléculaires, UMR 5255 CNRS, Université de Bordeaux, 351 Cours de la Libération, 33405, Talence Cedex, France
| | - Thierry Buffeteau
- Institut des Sciences Moléculaires, UMR 5255 CNRS, Université de Bordeaux, 351 Cours de la Libération, 33405, Talence Cedex, France
| | - Yann Ferrand
- Institut de Chimie et Biologie des Membranes et des Nano-objets, UMR 5248 CNRS, Université de Bordeaux, 2 rue Robert Escarpit, 33600, Pessac, France
| | - Céline Olivier
- Institut des Sciences Moléculaires, UMR 5255 CNRS, Université de Bordeaux, 351 Cours de la Libération, 33405, Talence Cedex, France
| |
Collapse
|
8
|
Fuller AA, Moreno JL, Nguyen MT. Using Fluorescence to Enable Innovative Functions of Foldamers. Isr J Chem 2021. [DOI: 10.1002/ijch.202000109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Amelia A. Fuller
- Department of Chemistry & Biochemistry Santa Clara University 500 El Camino Real Santa Clara CA 95053 USA
| | - Jose L. Moreno
- Department of Chemistry & Biochemistry Santa Clara University 500 El Camino Real Santa Clara CA 95053 USA
| | - Michelle T. Nguyen
- Department of Chemistry & Biochemistry Santa Clara University 500 El Camino Real Santa Clara CA 95053 USA
| |
Collapse
|
9
|
Lee M, Kang SI, Song S, Kim H, Lee D. Sharp Turns and Fluorescent Repeats: Modular Construction and Shape-Dependent Electronic Properties of π-Conjugated Chain Molecules. Chempluschem 2021; 86:313-318. [PMID: 33620771 DOI: 10.1002/cplu.202000818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 02/05/2021] [Indexed: 11/07/2022]
Abstract
In search of the design rules for structural ordering of open-chain molecules, we have built a series of zig-zag shaped π-conjugated structures with ring-fused heteroaromatics as sharp turns and tolane-based linear fragments as light-emitting units. Using only a finite number of common building blocks, an efficient "double-elongation" strategy was implemented to construct a series of π-conjugated oligomers with precise length control (55-89 % yields). Our approach takes advantage of the modular nature of the bis(triazolo)benzene synthesis and the masked reactivity of the nitro group. A combination of photophysical and DFT computational studies revealed that the bis(triazolo)benzene-tolane repeat units behave as electronically decoupled light-absorbing/emitting units (λmax,em = 408-422 nm; ΦF = 20-25 % in THF). Such context-independent photophysical properties promise their potential applications in chemical sensing and switching.
Collapse
Affiliation(s)
- Milim Lee
- Department of Chemistry, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Suk-Il Kang
- Department of Chemistry, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Sungmin Song
- Department of Chemistry, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Hongsik Kim
- Department of Chemistry, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Dongwhan Lee
- Department of Chemistry, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| |
Collapse
|
10
|
Seo SB, Lee S, Jeon HG, Jeong KS. Dramatic Enhancement of Binding Affinities Between Foldamer-Based Receptors and Anions by Intra-Receptor π-Stacking. Angew Chem Int Ed Engl 2020; 59:10441-10445. [PMID: 32157775 DOI: 10.1002/anie.202002657] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Indexed: 01/01/2023]
Abstract
As a synthetic model for intra-protein interactions that reinforce binding affinities between proteins and ligands, the energetic interplay of binding and folding was investigated using foldamer-based receptors capable of adopting helical structures. The receptors were designed to have identical hydrogen-bonding sites for anion binding but different aryl appendages that simply provide additional π-stacking within the helical backbones without direct interactions with the bound anions. In particular, the presence of electron-deficient aryl appendages led to dramatic enhancements in the association constant between the receptor and chloride or nitrate ions, by up to three orders of magnitude. Extended stacking within the receptor contributes to the stabilization of the entire folding structure of complexes, thereby enhancing binding affinities.
Collapse
Affiliation(s)
- Sung Beom Seo
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea
| | - Seungwon Lee
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea
| | - Hae-Geun Jeon
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea
| | - Kyu-Sung Jeong
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea
| |
Collapse
|
11
|
Bai D, Yan T, Wang S, Wang Y, Fu J, Fang X, Zhu J, Liu J. Reversible Ligand‐Gated Ion Channel via Interconversion between Hollow Single Helix and Intertwined Double Helix. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916755] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Dongya Bai
- Institute of Functional Organic Molecular Engineering Henan Engineering Laboratory of Flame-Retardant and Functional Materials College of Chemistry and Chemical Engineering Henan University Kaifeng 475004 China
| | - Tengfei Yan
- College of Materials Chemistry and Chemical Engineering Hangzhou Normal University Hangzhou 311121 China
| | - Shi Wang
- Institute of Functional Organic Molecular Engineering Henan Engineering Laboratory of Flame-Retardant and Functional Materials College of Chemistry and Chemical Engineering Henan University Kaifeng 475004 China
| | - Yanbo Wang
- Institute of Functional Organic Molecular Engineering Henan Engineering Laboratory of Flame-Retardant and Functional Materials College of Chemistry and Chemical Engineering Henan University Kaifeng 475004 China
| | - Jiya Fu
- Institute of Functional Organic Molecular Engineering Henan Engineering Laboratory of Flame-Retardant and Functional Materials College of Chemistry and Chemical Engineering Henan University Kaifeng 475004 China
| | - Xiaomin Fang
- Institute of Functional Organic Molecular Engineering Henan Engineering Laboratory of Flame-Retardant and Functional Materials College of Chemistry and Chemical Engineering Henan University Kaifeng 475004 China
| | - Junyan Zhu
- Institute of Functional Organic Molecular Engineering Henan Engineering Laboratory of Flame-Retardant and Functional Materials College of Chemistry and Chemical Engineering Henan University Kaifeng 475004 China
| | - Junqiu Liu
- College of Materials Chemistry and Chemical Engineering Hangzhou Normal University Hangzhou 311121 China
| |
Collapse
|
12
|
Bai D, Yan T, Wang S, Wang Y, Fu J, Fang X, Zhu J, Liu J. Reversible Ligand‐Gated Ion Channel via Interconversion between Hollow Single Helix and Intertwined Double Helix. Angew Chem Int Ed Engl 2020; 59:13602-13607. [DOI: 10.1002/anie.201916755] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Revised: 04/13/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Dongya Bai
- Institute of Functional Organic Molecular Engineering Henan Engineering Laboratory of Flame-Retardant and Functional Materials College of Chemistry and Chemical Engineering Henan University Kaifeng 475004 China
| | - Tengfei Yan
- College of Materials Chemistry and Chemical Engineering Hangzhou Normal University Hangzhou 311121 China
| | - Shi Wang
- Institute of Functional Organic Molecular Engineering Henan Engineering Laboratory of Flame-Retardant and Functional Materials College of Chemistry and Chemical Engineering Henan University Kaifeng 475004 China
| | - Yanbo Wang
- Institute of Functional Organic Molecular Engineering Henan Engineering Laboratory of Flame-Retardant and Functional Materials College of Chemistry and Chemical Engineering Henan University Kaifeng 475004 China
| | - Jiya Fu
- Institute of Functional Organic Molecular Engineering Henan Engineering Laboratory of Flame-Retardant and Functional Materials College of Chemistry and Chemical Engineering Henan University Kaifeng 475004 China
| | - Xiaomin Fang
- Institute of Functional Organic Molecular Engineering Henan Engineering Laboratory of Flame-Retardant and Functional Materials College of Chemistry and Chemical Engineering Henan University Kaifeng 475004 China
| | - Junyan Zhu
- Institute of Functional Organic Molecular Engineering Henan Engineering Laboratory of Flame-Retardant and Functional Materials College of Chemistry and Chemical Engineering Henan University Kaifeng 475004 China
| | - Junqiu Liu
- College of Materials Chemistry and Chemical Engineering Hangzhou Normal University Hangzhou 311121 China
| |
Collapse
|
13
|
Seo SB, Lee S, Jeon H, Jeong K. Dramatic Enhancement of Binding Affinities Between Foldamer‐Based Receptors and Anions by Intra‐Receptor π‐Stacking. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202002657] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Sung Beom Seo
- Department of Chemistry Yonsei University Seoul 03722 Republic of Korea
| | - Seungwon Lee
- Department of Chemistry Yonsei University Seoul 03722 Republic of Korea
| | - Hae‐Geun Jeon
- Department of Chemistry Yonsei University Seoul 03722 Republic of Korea
| | - Kyu‐Sung Jeong
- Department of Chemistry Yonsei University Seoul 03722 Republic of Korea
| |
Collapse
|
14
|
Abstract
Using anions to induce molecular structure is a rapidly growing area of dynamic and switchable supramolecular chemistry. The emphasis of this review is on helical anion foldamers in solution, and many of the beautiful complexes described herein are accentuated by their crystal structures. Anion foldamers are defined as single- or multistrand complexes-often helical-that incorporate one or more anions. The review begins by discussing foldamer structure and nomenclature and follows with discourse on the anions which are employed. Recent advances in functional foldamers that bind a single anion are examined, including: induced chirality, stimuli-responsive dynamics, fluorescence changes, organocatalysis, anion transport, and halogen bonding. The review then inspects multianion foldamers, and this section is organized by the number of strands within the foldamer-from single- to triple-strand foldamers. Finally, the review is punctuated by recent hydrogen- and halogen-bonding triple-strand anion foldamers.
Collapse
Affiliation(s)
- Eric A John
- Department of Chemistry and Biochemistry, University of Montana, 32 Campus Drive, Missoula, Montana 59812, United States
| | - Casey J Massena
- Department of Chemistry and Biochemistry, University of Montana, 32 Campus Drive, Missoula, Montana 59812, United States
| | - Orion B Berryman
- Department of Chemistry and Biochemistry, University of Montana, 32 Campus Drive, Missoula, Montana 59812, United States
| |
Collapse
|
15
|
Qiu Y, Yan H, Wang J, Jiang Q, Wang H, Peng H, Liao Y, Xie X, Brycki BE. Concurrent helix extension and chirality enhancement for an artificial helical foldamer complexed with sterically hindered chiral molecules. POLYMER 2020. [DOI: 10.1016/j.polymer.2019.122135] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
16
|
Tateno K, Ono K, Kawai H. Fluorescent Short‐Stranded Helical Foldamers Based on L‐shaped Dibenzopyrrolo[1,2‐
a
][1,8]naphthyridine. Chemistry 2019; 25:15765-15771. [DOI: 10.1002/chem.201903538] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 09/08/2019] [Indexed: 01/27/2023]
Affiliation(s)
- Kotaro Tateno
- Department of ChemistryFaculty of ScienceTokyo University of Science 1–3 Kagurazaka Shinjuku-ku Tokyo 162-8601 Japan
| | - Kosuke Ono
- Department of ChemistryTokyo Institute of Technology 2–12-1 O-okayama, Meguro-ku Tokyo 152-8551 Japan
| | - Hidetoshi Kawai
- Department of ChemistryFaculty of ScienceTokyo University of Science 1–3 Kagurazaka Shinjuku-ku Tokyo 162-8601 Japan
| |
Collapse
|
17
|
Boer SA, Foyle EM, Thomas CM, White NG. Anion coordination chemistry using O-H groups. Chem Soc Rev 2019; 48:2596-2614. [PMID: 30860210 DOI: 10.1039/c8cs00828k] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This review covers significant advances in the use of O-H groups in anion coordination chemistry. The review focuses on the use of these groups in synthetic anion receptors, as well as more recent developments in transport, self-assembly and catalysis.
Collapse
Affiliation(s)
- Stephanie A Boer
- Research School of Chemistry, The Australian National University, Canberra, Australia.
| | | | | | | |
Collapse
|
18
|
Morshedi M, Boer SA, Thomas M, White NG. Easily-prepared Hydroxy-containing Receptors Recognize Anions in Aqueous Media. Chem Asian J 2019; 14:1271-1277. [PMID: 30747486 DOI: 10.1002/asia.201900033] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Indexed: 12/20/2022]
Abstract
Despite their ready availability, O-H groups have received relatively little attention as anion recognition motifs. Here, we report two simple hydroxy-containing anion receptors that are prepared in two facile steps followed by anion exchange, without the need for chromatographic purification at any stage. These receptors contain a pyridinium bis(amide) motif as well as hydroxyphenyl groups, and bind mono- and divalent anions in 9:1 CD3 CN:D2 O, showing a selectivity preference for sulfate. Notably, a "model" receptor that does not contain hydroxy groups shows only very weak sulfate binding in this competitive solvent mixture. In the solid state, X-ray crystallographic studies show that the receptors tend to form extended assemblies with anions; however, 1 H and DOSY NMR studies as well as molecular dynamics simulations show that only 1:1 complexes are present in solution. Molecular dynamics simulations suggest that one of the receptors suffers from competing intramolecular hydrogen bonding, while another binds partially-hydrated anions, with the receptor's O-H groups forming hydrogen bonds to water molecules within the anion's coordination sphere.
Collapse
Affiliation(s)
- Mahbod Morshedi
- Research School of Chemistry, The Australian National University, Canberra, ACT, Australia
| | - Stephanie A Boer
- Research School of Chemistry, The Australian National University, Canberra, ACT, Australia
| | - Michael Thomas
- Research School of Chemistry, The Australian National University, Canberra, ACT, Australia
| | - Nicholas G White
- Research School of Chemistry, The Australian National University, Canberra, ACT, Australia
| |
Collapse
|
19
|
|
20
|
Lee C, Lee H, Lee S, Jeon HG, Jeong KS. Encapsulation of dihydrogenphosphate ions as a cyclic dimer to the cavities of site-specifically modified indolocarbazole-pyridine foldamers. Org Chem Front 2019. [DOI: 10.1039/c8qo01307a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Site-specifically modified aromatic foldamers can encapsulate dihydrogen phosphate ions as a cyclic dimer via the formation of twelve hydrogen bonds.
Collapse
Affiliation(s)
- Chaeeun Lee
- Department of Chemistry
- Yonsei University
- Seoul 03722
- Korea
| | - Hyemi Lee
- Department of Chemistry
- Yonsei University
- Seoul 03722
- Korea
| | - Seungwon Lee
- Department of Chemistry
- Yonsei University
- Seoul 03722
- Korea
| | - Hae-Geun Jeon
- Department of Chemistry
- Yonsei University
- Seoul 03722
- Korea
| | - Kyu-Sung Jeong
- Department of Chemistry
- Yonsei University
- Seoul 03722
- Korea
| |
Collapse
|
21
|
Parks FC, Liu Y, Debnath S, Stutsman SR, Raghavachari K, Flood AH. Allosteric Control of Photofoldamers for Selecting between Anion Regulation and Double-to-Single Helix Switching. J Am Chem Soc 2018; 140:17711-17723. [DOI: 10.1021/jacs.8b10538] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Fred C. Parks
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Yun Liu
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Sibali Debnath
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Sydney R. Stutsman
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Krishnan Raghavachari
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Amar H. Flood
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| |
Collapse
|
22
|
Jang HB, Choi YR, Jeong KS. Matched and Mismatched Phenomena in the Helix Orientation Bias Induced by Chiral Appendages at Multiple Positions of Indolocarbazole-Pyridine Hybrid Foldamers. J Org Chem 2018; 83:5123-5131. [PMID: 29693388 DOI: 10.1021/acs.joc.8b00482] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of indolocarbazole-pyridine (IP) hybrid foldamers containing chiral residues at multiple different positions were prepared to reveal the matched and mismatched phenomena of local stereocenters on the induction of helical bias. These foldamers adopted stable helical conformations, thus affording well-resolved separate sets of 1H NMR signals for right- ( P) and left-handed ( M) helices in water saturated organic solvents such as toluene and dichloromethane. The ratios of P- and M-helices were determined by integrating the 1H NMR signals, in combination with the molar circular dichroism (Δε) and optical rotation ([α]D) values. The degree of helical bias was larger in the IP foldamer bearing chiral residues at the termini relative to those at the pyridine side chains, but the preferred helix orientation was opposite to each other. Foldamers 5( SS)t( SSS)py and 6( RR)t( SSS)py with chiral residues at five different positions demonstrated the matched and mismatched phenomena of local stereocenters in 6( RR)t( SSS)py and 5( SS)t( SSS)py, respectively.
Collapse
Affiliation(s)
- Han Bit Jang
- Department of Chemistry , Yonsei University , Seoul 03722 , Korea
| | - Ye Rin Choi
- Department of Chemistry , Yonsei University , Seoul 03722 , Korea
| | - Kyu-Sung Jeong
- Department of Chemistry , Yonsei University , Seoul 03722 , Korea
| |
Collapse
|
23
|
Toya M, Ito H, Itami K. Recent advances in acetylene-based helical oligomers and polymers: Synthesis, structures, and properties. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.018] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
24
|
Bąk KM, Masłowska K, Chmielewski MJ. Selective turn-on fluorescence sensing of sulfate in aqueous-organic mixtures by an uncharged bis(diamidocarbazole) receptor. Org Biomol Chem 2018; 15:5968-5975. [PMID: 28675234 DOI: 10.1039/c7ob01358b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A linear, uncharged, hydrogen bonding receptor A with two carbazole-based binding domains was synthesised and evaluated for its anion binding properties in DMSO/H2O mixtures. 1H NMR titrations revealed that, in DMSO/H2O 0.5%, A forms both 1 : 1 and 1 : 2 complexes with SO42-, H2PO4-, PhCOO- and Cl-. In 1 : 1 complexes the receptor encloses the tetrahedral anions tightly, forming a helical structure, while Cl- binds with a single carbazole unit only. In the presence of 10% of water the 1 : 2 complexes with SO42- and PhCOO- disappear, and the respective 1 : 1 binding constants decrease sufficiently to be quantified by UV-Vis titration. In this highly competitive medium, A binds sulfate with K1:1 = 105.47 M-1, i.e., it binds approx. 30, 360 and >1000 times more strongly than H2PO4-, PhCOO- and Cl-, respectively. Furthermore, the association with sulfate is over 50 times stronger than that for a model diamidocarbazole 1 under identical conditions, suggesting a very strong chelating effect due to the diglycoyl linker. Increasing the amount of water to 25% (the solubility limit of A) lowers the 1 : 1 binding constant with SO42- to 103.73 M-1. Receptor A was shown to act as a selective turn-on fluorescent sensor for sulfate, able to sense sulfate in sulfate-rich mineral water.
Collapse
Affiliation(s)
- Krzysztof M Bąk
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warszawa, Poland.
| | | | | |
Collapse
|
25
|
Wang W, Zhang C, Qi S, Deng X, Yang B, Liu J, Dong Z. A Switchable Helical Capsule for Encapsulation and Release of Potassium Ion. J Org Chem 2018; 83:1898-1902. [DOI: 10.1021/acs.joc.7b02840] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Wei Wang
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
| | - Chenyang Zhang
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
| | - Shuaiwei Qi
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
| | - Xiaoli Deng
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
| | - Bing Yang
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
| | - Junqiu Liu
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
| | - Zeyuan Dong
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
| |
Collapse
|
26
|
Resa S, Miguel D, Guisán-Ceinos S, Mazzeo G, Choquesillo-Lazarte D, Abbate S, Crovetto L, Cárdenas DJ, Carreño MC, Ribagorda M, Longhi G, Mota AJ, Álvarez de Cienfuegos L, Cuerva JM. Sulfoxide-Induced Homochiral Folding of ortho
-Phenylene Ethynylenes (o
-OPEs) by Silver(I) Templating: Structure and Chiroptical Properties. Chemistry 2018; 24:2653-2662. [DOI: 10.1002/chem.201704897] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Indexed: 12/29/2022]
Affiliation(s)
- Sandra Resa
- Department of Organic Chemistry; University of Granada, UGR; C. U. Fuentenueva 18071 Granada Spain
| | - Delia Miguel
- Department of Physical Chemistry; University of Granada, UGR, Cartuja Campus; 18071 Granada Spain
| | - Santiago Guisán-Ceinos
- Department of Organic Chemistry; Universidad Autónoma de Madrid, Cantoblanco; 28049 Madrid Spain
| | - Giuseppe Mazzeo
- Dipartimento di Medicina e Traslazionale; Università di Brescia; Viale Europa 11 25123 Brescia Italy
| | - Duane Choquesillo-Lazarte
- Laboratorio de Estudios Cristalográficos; Instituto Andaluz de Ciencias de la Tierra, CSIC-UGR; Armilla, Granada Spain
| | - Sergio Abbate
- Dipartimento di Medicina e Traslazionale; Università di Brescia; Viale Europa 11 25123 Brescia Italy
| | - Luis Crovetto
- Department of Physical Chemistry; University of Granada, UGR, Cartuja Campus; 18071 Granada Spain
| | - Diego J. Cárdenas
- Department of Organic Chemistry; Universidad Autónoma de Madrid, Cantoblanco; 28049 Madrid Spain
| | - M. Carmen Carreño
- Department of Organic Chemistry; Universidad Autónoma de Madrid, Cantoblanco; 28049 Madrid Spain
| | - María Ribagorda
- Department of Organic Chemistry; Universidad Autónoma de Madrid, Cantoblanco; 28049 Madrid Spain
| | - Giovanna Longhi
- Dipartimento di Medicina e Traslazionale; Università di Brescia; Viale Europa 11 25123 Brescia Italy
| | - Antonio J. Mota
- Department of Inorganic Chemistry; University of Granada, UGR; C. U. Fuentenueva 18071 Granada Spain
| | | | - Juan M. Cuerva
- Department of Organic Chemistry; University of Granada, UGR; C. U. Fuentenueva 18071 Granada Spain
| |
Collapse
|
27
|
Abstract
This review introduces the interplay of anion coordination and supramolecular self-assembly, presenting recent progress in anion-induced and anion-coordination-based self-assemblies.
Collapse
Affiliation(s)
- Dong Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710069
- China
| | - Jie Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710069
- China
| | - Xiao-Juan Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710069
- China
| | - Biao Wu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710069
- China
| |
Collapse
|
28
|
Jeon HG, Lee HK, Lee S, Jeong KS. Foldamer-based helicate displaying reversible switching between two distinct conformers. Chem Commun (Camb) 2018; 54:5740-5743. [DOI: 10.1039/c8cc02758g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A foldamer-based double-stranded helicate displays reversible switching between two distinct helicate conformers in response to temperature.
Collapse
Affiliation(s)
- Hae-Geun Jeon
- Department of Chemistry
- Yonsei University
- Seoul 03722
- Korea
| | - Hyun Kyung Lee
- Department of Chemistry
- Yonsei University
- Seoul 03722
- Korea
| | - Seungwon Lee
- Department of Chemistry
- Yonsei University
- Seoul 03722
- Korea
| | - Kyu-Sung Jeong
- Department of Chemistry
- Yonsei University
- Seoul 03722
- Korea
| |
Collapse
|
29
|
|
30
|
Hwang JY, Jeon HG, Choi YR, Kim J, Kang P, Lee S, Jeong KS. Aromatic Hybrid Foldamer with a Hydrophilic Helical Cavity Capable of Encapsulating Glucose. Org Lett 2017; 19:5625-5628. [DOI: 10.1021/acs.orglett.7b02768] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ji Young Hwang
- Department of Chemistry, Yonsei University, Seoul 03722, South Korea
| | - Hae-Geun Jeon
- Department of Chemistry, Yonsei University, Seoul 03722, South Korea
| | - Ye Rin Choi
- Department of Chemistry, Yonsei University, Seoul 03722, South Korea
| | - Junyoung Kim
- Department of Chemistry, Yonsei University, Seoul 03722, South Korea
| | - Philjae Kang
- Department of Chemistry, Yonsei University, Seoul 03722, South Korea
| | - Seungwon Lee
- Department of Chemistry, Yonsei University, Seoul 03722, South Korea
| | - Kyu-Sung Jeong
- Department of Chemistry, Yonsei University, Seoul 03722, South Korea
| |
Collapse
|
31
|
Kim J, Jeon HG, Kang P, Jeong KS. Stereospecific control of the helical orientation of indolocarbazole–pyridine hybrid foldamers by rational modification of terminal chiral appendages. Chem Commun (Camb) 2017; 53:6508-6511. [DOI: 10.1039/c7cc03552g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The helical handedness excess of an indolocarbazole–pyridine hybrid oligomer capable of folding into a stable helical structure was achieved up to 96% by rational modification of terminal chiral residues.
Collapse
Affiliation(s)
- Junyoung Kim
- Department of Chemistry
- Yonsei University
- Seoul 120-749
- Korea
| | - Hae-Geun Jeon
- Department of Chemistry
- Yonsei University
- Seoul 120-749
- Korea
| | - Philjae Kang
- Department of Chemistry
- Yonsei University
- Seoul 120-749
- Korea
| | - Kyu-Sung Jeong
- Department of Chemistry
- Yonsei University
- Seoul 120-749
- Korea
| |
Collapse
|