1
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Pramanik S, Islam ASM, Ghosh I, Ghosh P. Supramolecular chemistry of liquid-liquid extraction. Chem Sci 2024; 15:7824-7847. [PMID: 38817569 PMCID: PMC11134359 DOI: 10.1039/d4sc00933a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 04/27/2024] [Indexed: 06/01/2024] Open
Abstract
Liquid-Liquid Extraction (LLE) is a venerable and widely used method for the separation of a targeted solute between two immiscible liquids. In recent years, this method has gained popularity in the supramolecular chemistry community due to the development of various types of synthetic receptors that effectively and selectively bind specific guests in an aqueous medium through different supramolecular interactions. This has eventually led to the development of state-of-the-art extraction technologies for the removal and purification of anions, cations, ion pairs, and small molecules from one liquid phase to another liquid phase, which is an industrially viable method. The focus of this perspective is to furnish a vivid picture of the current understanding of supramolecular interaction-based LLE chemistry. This will not only help to improve separation technology in the chemical, mining, nuclear waste treatment, and medicinal chemistry sectors but is also useful to address the purity issue of the extractable species, which is otherwise difficult. Thus, up-to-date knowledge on this subject will eventually provide opportunities to develop large-scale waste remediation processes and metallurgy applications that can address important real-life problems.
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Affiliation(s)
- Sourav Pramanik
- School of Chemical Sciences, Indian Association for the Cultivation of Science Kolkata 700032 India
| | - Abu S M Islam
- School of Chemical Sciences, Indian Association for the Cultivation of Science Kolkata 700032 India
| | - Iti Ghosh
- School of Chemical Sciences, Indian Association for the Cultivation of Science Kolkata 700032 India
| | - Pradyut Ghosh
- School of Chemical Sciences, Indian Association for the Cultivation of Science Kolkata 700032 India
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2
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Berry SN, Zou M, Nguyen SL, Sajowitz AE, Qin L, Lewis W, Jolliffe KA. Supramolecular Control of the Temperature Responsiveness of Fluorescent Macrocyclic Molecular Rotamers. Chemistry 2024; 30:e202400504. [PMID: 38499467 DOI: 10.1002/chem.202400504] [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: 02/04/2024] [Revised: 03/18/2024] [Accepted: 03/18/2024] [Indexed: 03/20/2024]
Abstract
To fully harness the potential of molecular machines, it is crucial to develop methods by which to exert control over their speed of motion through the application of external stimuli. A conformationally strained macrocyclic fluorescent rotamer, CarROT, displays a reproducible and linear fluorescence decrease towards temperature over the physiological temperature range. Through the external addition of anions, cations or through deprotonation, the compound can access four discreet rotational speeds via supramolecular interactions (very slow, slow, fast and very fast) which in turn stop, reduce or enhance the thermoluminescent properties due to increasing or decreasing non-radiative decay processes, thereby providing a means to externally control the temperature sensitivity of the system. Through comparison with analogues with a higher degree of conformational freedom, the high thermosensitivity of CarROT over the physiological temperature range was determined to be due to conformational strain, which causes a high energy barrier to rotation over this range. Analogues with a higher degree of conformational freedom display lower sensitivities towards temperature over the same temperature range. This study provides an example of an information rich small molecule, in which programable rotational speed states can be observed with facile read-out.
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Affiliation(s)
- Stuart N Berry
- School of Chemistry, The University of Sydney, NSW, 2006, Australia
| | - Meijun Zou
- School of Chemistry, The University of Sydney, NSW, 2006, Australia
| | - Sarah L Nguyen
- School of Chemistry, The University of Sydney, NSW, 2006, Australia
| | - Aidan E Sajowitz
- School of Chemistry, The University of Sydney, NSW, 2006, Australia
| | - Lei Qin
- School of Chemistry, The University of Sydney, NSW, 2006, Australia
| | - William Lewis
- School of Chemistry, The University of Sydney, NSW, 2006, Australia
- Sydney Analytical, The University of Sydney, NSW, 2006, Australia
| | - Katrina A Jolliffe
- School of Chemistry, The University of Sydney, NSW, 2006, Australia
- The University of Sydney Nano Institute (Sydney Nano), The University of Sydney, NSW, 2006, Australia
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, NSW, 2006, Australia
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3
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Picci G, Montis R, Lippolis V, Caltagirone C. Squaramide-based receptors in anion supramolecular chemistry: insights into anion binding, sensing, transport and extraction. Chem Soc Rev 2024; 53:3952-3975. [PMID: 38465875 DOI: 10.1039/d3cs01165h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Over the last 15 years, squaramide-based receptors have attracted the attention of supramolecular chemists working in the field of anion recognition. Herein, we highlight examples of squaramide-based receptors that are able to bind, sense, extract and transport anions.
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Affiliation(s)
- Giacomo Picci
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, Monserrato (CA) 09042, Italy.
| | - Riccardo Montis
- Department of Pure and Applied Science, University of Urbino, Via della Stazione 4, Urbino I-61029, Italy.
| | - Vito Lippolis
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, Monserrato (CA) 09042, Italy.
| | - Claudia Caltagirone
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, Monserrato (CA) 09042, Italy.
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4
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Bąk KM, Trzaskowski B, Chmielewski MJ. Anion-templated synthesis of a switchable fluorescent [2]catenane with sulfate sensing capability. Chem Sci 2024; 15:1796-1809. [PMID: 38303949 PMCID: PMC10829038 DOI: 10.1039/d3sc05086f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 12/16/2023] [Indexed: 02/03/2024] Open
Abstract
Anion templation strategies have facilitated the synthesis of various catenane and rotaxane hosts capable of strong and selective binding of anions in competitive solvents. However, this approach has primarily relied on positively charged precursors, limiting the structural diversity and the range of potential applications of the anion-templated mechanically interlocked molecules. Here we demonstrate the synthesis of a rare electroneutral [2]catenane using a powerful, doubly charged sulfate template and a complementary diamidocarbazole-based hydrogen bonding precursor. Owing to the unique three-dimensional hydrogen bonding cavity and the embedded carbazole fluorophores, the resulting catenane receptor functions as a sensitive fluorescent turn-ON sensor for the highly hydrophilic sulfate, even in the presence of a large excess of water. Importantly, the [2]catenane exhibits enhanced binding affinity and selectivity for sulfate over its parent macrocycle and other acyclic diamidocarbazole-based receptors. We demonstrate also, for the first time, that the co-conformation of the catenane may be controlled by reversible acid/base induced protonation and deprotonation of the anionic template, SO42-. This approach pioneers a new strategy to induce molecular motion of interlocked components using switchable anionic templates.
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Affiliation(s)
- Krzysztof M Bąk
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw Żwirki i Wigury 101 02-089 Warsaw Poland
| | - Bartosz Trzaskowski
- Centre of New Technologies, University of Warsaw Banacha 2c 02-097 Warsaw Poland
| | - Michał J Chmielewski
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw Żwirki i Wigury 101 02-089 Warsaw Poland
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5
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Chvojka M, Madea D, Valkenier H, Šindelář V. Tuning CH Hydrogen Bond-Based Receptors toward Picomolar Anion Affinity via the Inductive Effect of Distant Substituents. Angew Chem Int Ed Engl 2023:e202318261. [PMID: 38063265 DOI: 10.1002/anie.202318261] [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: 11/29/2023] [Indexed: 12/23/2023]
Abstract
Inspired by nature, artificial hydrogen bond-based anion receptors have been developed to achieve high anion selectivity; however, their binding affinity is usually low. The potency of these receptors is usually increased by the introduction of aryl substituents, which withdraw electrons from their binding site through the resonance effect. Here, we show that the polarization of the C(sp3 )-H binding site of bambusuril receptors, and thus their potency to bind anions, can be modulated by the inductive effect. The presence of electron-withdrawing groups on benzyl substituents of bambusurils significantly increases their binding affinities to halides, resulting in the strongest iodide receptor reported to date with an association constant greater than 1013 M-1 in acetonitrile. A Hammett plot showed that while the bambusuril affinity toward halides linearly increases with the electron-withdrawing power of their substituents, their binding selectivity remains essentially unchanged.
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Affiliation(s)
- Matúš Chvojka
- Department of Chemistry, Faculty of Science, Masaryk University, 625 00, Brno, Czech Republic
- RECETOX, Faculty of Science, Masaryk University, 625 00, Brno, Czech Republic
- Engineering of Molecular NanoSystems, École polytechnique de Bruxelles, Université libre de Bruxelles, Avenue F.D. Roosevelt 50, CP165/64, 1050, Brussels, Belgium
| | - Dominik Madea
- Department of Chemistry, Faculty of Science, Masaryk University, 625 00, Brno, Czech Republic
- RECETOX, Faculty of Science, Masaryk University, 625 00, Brno, Czech Republic
| | - Hennie Valkenier
- Engineering of Molecular NanoSystems, École polytechnique de Bruxelles, Université libre de Bruxelles, Avenue F.D. Roosevelt 50, CP165/64, 1050, Brussels, Belgium
| | - Vladimír Šindelář
- Department of Chemistry, Faculty of Science, Masaryk University, 625 00, Brno, Czech Republic
- RECETOX, Faculty of Science, Masaryk University, 625 00, Brno, Czech Republic
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6
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Wang YF, Wang SM, Zhang X, Nian H, Zheng LS, Wang X, Schreckenbach G, Jiang W, Yang LP, Wang LL. Precise Recognition in Water by an Endo-Functionalized Cavity: Tuning the Complementarity of Binding Sites. Angew Chem Int Ed Engl 2023; 62:e202310115. [PMID: 37814589 DOI: 10.1002/anie.202310115] [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: 07/16/2023] [Revised: 10/08/2023] [Accepted: 10/09/2023] [Indexed: 10/11/2023]
Abstract
Precise binding towards structurally similar substrates is a common feature of biomolecular recognition. However, achieving such selectivity-especially in distinguishing subtle differences in substrates-with synthetic hosts can be quite challenging. Herein, we report a novel design strategy involving the combination of different rigid skeletons to adjust the distance between recognition sites within the cavity, which allows for the highly selective recognition of hydrogen-bonding complementary substrates, such as 4-chromanone. X-ray single-crystal structures and density functional theory calculations confirmed that the distance of endo-functionalized groups within the rigid cavity is crucial for achieving high binding selectivity through hydrogen bonding. The thermodynamic data and molecular dynamics simulations revealed a significant influence of the hydrophobic cavity on the binding affinity. The new receptor possesses both high selectivity and high affinity, which provide valuable insights for the design of customized receptors.
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Affiliation(s)
- Yan-Fang Wang
- Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Song-Meng Wang
- Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Xiaobin Zhang
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada
| | - Hao Nian
- Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Li-Shuo Zheng
- Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Xiaoping Wang
- Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Georg Schreckenbach
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada
| | - Wei Jiang
- Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Liu-Pan Yang
- School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Li-Li Wang
- School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
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7
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Jung Heo N, Lynch VM, Gross DE, Sessler JL, Kuk Kim S. Diphenylpyrrole-Strapped Calix[4]pyrrole Extractant for the Fluoride and Chloride Anions. Chemistry 2023; 29:e202302410. [PMID: 37639280 DOI: 10.1002/chem.202302410] [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: 07/26/2023] [Revised: 08/25/2023] [Accepted: 08/25/2023] [Indexed: 08/29/2023]
Abstract
The anion binding features of diphenylpyrrole-strapped calix[4]pyrrole 1 have been investigated by means of 1 H NMR spectroscopy and ITC (isothermal titration calorimetry), as well as single crystal X-ray diffraction analyses. Receptor 1 bearing an auxiliary pyrrolic NH donor and solubilizing phenyl groups on the strap was found to bind F- , Cl- , and Br- as their tetrabutylammonium salts with high affinity in DMSO-d6 . In addition, receptor 1 was found to extract the fluoride anion (as both its tetraethylammonium (TEA+ ) and tetrabutylammonium (TBA+ ) salts), as well as the chloride anion into chloroform-d from an aqueous source phase. Cation metathesis using TBAI or the use of a dual host approach involving crown ethers enabled receptor 1 to extract simple alkali metal fluoride or chloride salts from water. Quantitative binding of NaF by receptor 1 was observed in 20 % D2 O-DMSO-d6 allowing for the direct determination of the NaF concentration in an unknown sample.
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Affiliation(s)
- Nam Jung Heo
- Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju, 52828, Korea
| | - Vincent M Lynch
- Department of Chemistry, Institution The University of Texas at Austin, 2105 E. 24th Street-Stop A5300, Austin, Texas, 78712-1224, USA
| | - Dustin E Gross
- Department of Chemistry, Sam Houston State University, Huntsville, Texas, USA
| | - Jonathan L Sessler
- Department of Chemistry, Institution The University of Texas at Austin, 2105 E. 24th Street-Stop A5300, Austin, Texas, 78712-1224, USA
| | - Sung Kuk Kim
- Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju, 52828, Korea
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8
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Sun ZY, Chen SQ, Liang L, Zhao W, Yang XJ, Wu B. pH-Dependent phosphate separation using a tripodal hexaurea receptor. Chem Commun (Camb) 2023; 59:12923-12926. [PMID: 37823279 DOI: 10.1039/d3cc04122k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
We demonstrate that a tripodal hexaurea receptor can selectively bind PO43- anions via 12 hydrogen bonds with up to 3.8 × 106 M-1 binding affinity in DMSO, which is 38-fold stronger than SO42-. This receptor facilitates the extraction of PO43- from strongly basic aqueous solutions into chloroform using liquid-liquid extraction, followed by its release as the H2PO4- anion into an acidic solution. This pH-dependent phosphate extraction successfully enables selective separation of phosphate and sulfate anions.
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Affiliation(s)
- Zhong-Yu Sun
- Key Laboratory of Medicinal Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China.
| | - Si-Qi Chen
- Key Laboratory of Medicinal Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China.
| | - Lin Liang
- Key Laboratory of Medicinal Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China.
| | - Wei Zhao
- Key Laboratory of Medicinal Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China.
| | - Xiao-Juan Yang
- Key Laboratory of Medicinal Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China.
| | - Biao Wu
- Key Laboratory of Medicinal Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China.
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9
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Yousef TA, Alrabiah H, Al-Agamy MH, Al-Salahi R, Ali EA, Mostafa GAE. Synthesis of (R)-(6-Methoxyquinolin-4-yl)[(1S,2S,4S,5R)-5-vinylquinuclidin-2-yl]methanol Tetraphenylborate Ion-Pair Complex: Characterization, Antimicrobial, and Computational Study. Molecules 2023; 28:6974. [PMID: 37836825 PMCID: PMC10574080 DOI: 10.3390/molecules28196974] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/11/2023] [Accepted: 10/04/2023] [Indexed: 10/15/2023] Open
Abstract
The (R)-(6-Methoxyquinolin-4-yl)[(1S,2S,4S,5R)-5-vinylquinuclidin-2-yl]methanol (quinine)-tetraphenylborate complex was synthesized by reacting sodium tetraphenyl borate with quinine in deionized water at room temperature through an ion-pair reaction (green chemistry) at room temperature. The solid complex was characterized by several physicochemical methods. The formation of ion-pair complex between bio-active molecules and/or organic molecules is crucial to comprehending the relationships between bioactive molecules and receptor interactions. The complex under study was examined for antimicrobial activity. All theoretical calculations were carried out in vacuum and water using the B3LYP level 6-311G(d,p) levels of theory. The theoretical computation allowed for the prediction and visualization of ionic interactions, which explained the complex's stability. The results of energy optimization showed that the Q-TPB complex is stable with a negative complexation energy. The obtained geometries showed that the boron (B-) and nitrogen (N+) in piperidine of the two molecules tetraphenylborate and quinine are close to each other, which makes it possible for ions to interact. The modest energy gap between HOMO and LUMO showed that the compound was stable. The computation of the electron transitions of the two models by density functional theory (TD-DFT) in the solvent at the theoretical level B3LYP/6-311G(d,p) allowed for the detection of three UV/visible absorption bands for both models and the discovery of a charge transfer between the host and the guest. The UV absorption, infrared, and H NMR are comparable with the experimental part.
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Affiliation(s)
- Tarek A. Yousef
- Chemistry Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Haitham Alrabiah
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia (R.A.-S.)
| | - Mohamed H. Al-Agamy
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Rashad Al-Salahi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia (R.A.-S.)
| | - Essam A. Ali
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia (R.A.-S.)
| | - Gamal A. E. Mostafa
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia (R.A.-S.)
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10
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Tanaka K, Takeda F, Kanda M, Kawahata M, Fujii S, Katagiri K, Masu H, Kagechika H, Tanatani A. Solvent-Dependent Conformational Switching of N-Methyl-N,N'-diarylsquaramide. J Org Chem 2023; 88:12289-12293. [PMID: 37565781 DOI: 10.1021/acs.joc.3c00918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
N,N'-Diarylsquaramide and N,N'-dialkylsquaramide are conformationally stable linkers with extended (trans, trans) and folded (cis, cis) structures, respectively, independently of external conditions. Here, we show that N-monomethylated N,N'-diarylsquaramides generally take a (trans, cis) structure in the crystal but show a solvent-dependent conformational equilibrium in solution. In particular, the stable conformer of N-methyl-N,N'-bis(1-naphthyl)squaramide (1f) changes depending upon the solvent. Thus, aromatic N-monomethylated squaramides could find application as components of environment-responsive molecular switches.
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Affiliation(s)
- Kimiko Tanaka
- Department of Chemistry, Faculty of Science, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
| | - Fumi Takeda
- Department of Chemistry, Faculty of Science, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
| | - Midori Kanda
- Department of Chemistry, Faculty of Science, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
| | - Masatoshi Kawahata
- Faculty of Pharmaceutical Science, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Shinya Fujii
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Kosuke Katagiri
- Department of Chemistry of Functional Molecules, Faculty of Science and Engineering, Konan University, 8-9-1 Okamoto, Higashinada, Kobe, Hyogo 658-8501, Japan
| | - Hyuma Masu
- Center for Analytical Instrumentation, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan
| | - Hiroyuki Kagechika
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Aya Tanatani
- Department of Chemistry, Faculty of Science, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
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11
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Yang JH, Kim SK. A squaramide cage capable of binding and extracting H 2PO 4- and HP 2O 73- in highly polar protic media. Chem Commun (Camb) 2023; 59:9988-9991. [PMID: 37519091 DOI: 10.1039/d3cc02611f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
A novel squaramide cage (2) binds H2PO4- and HP2O73- with high selectivity and affinity in a highly polar protic solvent system. Receptor 2 is also able to extract these hydrophilic anions into a chloroform phase from water. The X-ray crystal structure demonstrated that compound 2 forms a complex with H2PO4- with 1 : 1 stoichiometry in the solid state.
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Affiliation(s)
- Ju Ho Yang
- Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju, 52828, Korea.
| | - Sung Kuk Kim
- Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju, 52828, Korea.
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12
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Ong WSY, Ji K, Pathiranage V, Maydew C, Baek K, Villones RLE, Meloni G, Walker AR, Dodani SC. Rational Design of the β-Bulge Gate in a Green Fluorescent Protein Accelerates the Kinetics of Sulfate Sensing. Angew Chem Int Ed Engl 2023; 62:e202302304. [PMID: 37059690 PMCID: PMC10330437 DOI: 10.1002/anie.202302304] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 04/11/2023] [Accepted: 04/12/2023] [Indexed: 04/16/2023]
Abstract
Detection of anions in complex aqueous media is a fundamental challenge with practical utility that can be addressed by supramolecular chemistry. Biomolecular hosts such as proteins can be used and adapted as an alternative to synthetic hosts. Here, we report how the mutagenesis of the β-bulge residues (D137 and W138) in mNeonGreen, a bright, monomeric fluorescent protein, unlocks and tunes the anion preference at physiological pH for sulfate, resulting in the turn-off sensor SulfOFF-1. This unprecedented sensing arises from an enhancement in the kinetics of binding, largely driven by position 138. In line with these data, molecular dynamics (MD) simulations capture how the coordinated entry and gating of sulfate into the β-barrel is eliminated upon mutagenesis to facilitate binding and fluorescence quenching.
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Affiliation(s)
- Whitney S. Y. Ong
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 W. Campbell Road, Richardson, Texas 75080-3021, USA
| | - Ke Ji
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 W. Campbell Road, Richardson, Texas 75080-3021, USA
| | - Vishaka Pathiranage
- Department of Chemistry, Wayne State University, 42 W. Warren Ave. Detroit, MI 48202, USA
| | - Caden Maydew
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 W. Campbell Road, Richardson, Texas 75080-3021, USA
| | - Kiheon Baek
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 W. Campbell Road, Richardson, Texas 75080-3021, USA
| | - Rhiza Lyne E. Villones
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 W. Campbell Road, Richardson, Texas 75080-3021, USA
| | - Gabriele Meloni
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 W. Campbell Road, Richardson, Texas 75080-3021, USA
| | - Alice R. Walker
- Department of Chemistry, Wayne State University, 42 W. Warren Ave. Detroit, MI 48202, USA
| | - Sheel C. Dodani
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 W. Campbell Road, Richardson, Texas 75080-3021, USA
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13
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Gogoi A, Dutta D, Gil-Hernández B, Dey SK. Anion-exchange facilitated selective extraction of sulfate and phosphate by overcoming the Hofmeister bias. RSC Adv 2023; 13:16185-16195. [PMID: 37266508 PMCID: PMC10230270 DOI: 10.1039/d3ra01771k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 05/15/2023] [Indexed: 06/03/2023] Open
Abstract
Selective recognition and removal of sulfate and phosphates from aqueous media in the presence of highly competing anions is very demanding because of their biological and environmental implications. In this paper, we present the anion recognition approach for the selective and efficient extraction of sulfate by nitrophenyl-functionalized tris-urea receptors (L1-L2) from highly competitive aqueous media with an equivalent concentration of nitrate and other anions. Tetrabutylammonium hydroxide has been used for the first time as a phase transfer anionic extractant for sulfate-exchange from the aqueous phase to the organic phase (dichloromethane) containing a tris-urea receptor (L1-L3). The sulfate extraction efficacy of L2 (≈84-90%) was observed to be higher than those of L1 (≈76-82%) and L3 (≈68-75%) in competitive extraction experiments. In contrast, an analogous nitrophenyl-functionalized tris-thiourea receptor (L4) has been recognized for the selective and efficient extraction of phosphates from aqueous media in the presence of several competing anions including sulfate and nitrate, with ≈85-92% extraction efficiency. In this case, tetrabutylammonium acetate has been used as a phase transfer anionic extractant for phosphate exchange between the two immiscible phases. Due to the higher acidity of tris-thiourea -NH groups in comparison to the analogous tris-urea, tetrabutylammonium hydroxide could deprotonate a hydrogen bond donating -NH group of the thiourea receptor and phosphate extraction was observed to be inefficient in such a case. Several liquid-liquid extraction (LLE) experiments have been carried out to establish the selective removal of sulfate and phosphates by the tripodal receptors from competitive aqueous media having different combinations of two or more anions. The LLE products obtained from organic phases were characterized by NMR (1H, 13C, 31P, and 19F) spectroscopy to affirm the oxoanion selectivity of the receptors and purity of the complexes. The tripodal receptors can easily be recycled for successive extraction cycles by simply washing the LLE products (oxoanion complexes) with a methanol-water (1 : 1, v/v) solvent system followed by filtration.
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Affiliation(s)
- Anamika Gogoi
- Material Science and Technology Division, CSIR-North East Institute of Science and Technology Jorhat 785006 Assam India +91-7387633550
| | - Dipjyoti Dutta
- Material Science and Technology Division, CSIR-North East Institute of Science and Technology Jorhat 785006 Assam India +91-7387633550
| | - Beatriz Gil-Hernández
- Departmento de Química, Facultad de Ciencias, Sección Química, Universidad de La Laguna La Laguna 38206 Tenerife Spain
| | - Sandeep Kumar Dey
- Material Science and Technology Division, CSIR-North East Institute of Science and Technology Jorhat 785006 Assam India +91-7387633550
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 Uttar Pradesh India
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14
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He YC, Tong HB, Xu CG, Ren ZX, Wang YZ, Yan YM, Wang ML. Highly Selective Coextraction of H +/SO 42- Using a Strapped Calix[4]pyrrole. Org Lett 2023; 25:1737-1741. [PMID: 36877585 DOI: 10.1021/acs.orglett.3c00422] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
We report on the synthesis of a cage-type calix[4]pyrrole (1) bearing an additional basic pyridinebisthiazolamine group on the strap. The receptor in its protonated form shows strong affinity and selectivity for sulfate over a wide range of inorganic anions. With receptor 1 as a liquid-liquid extractant, H+/SO42- in the form of H2SO4 is almost quantitatively extracted from an aqueous solution containing HNO3 at a high concentration to CH2Cl2 in a recyclable manner.
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Affiliation(s)
- Ying-Chun He
- Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, P. R. China
| | - Hong-Bo Tong
- Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, P. R. China
| | - Cheng-Gang Xu
- Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, P. R. China
| | - Zhen-Xing Ren
- Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, P. R. China
| | - Yong-Zhao Wang
- Engineering Research Center of Ministry of Education for Fine Chemicals, Shanxi University, Taiyuan 030006, P. R. China
| | - Yan-Mei Yan
- College of Chemistry and Materials, Taiyuan Normal University, Jinzhong 030619, P. R. China
| | - Meng-Liang Wang
- Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, P. R. China
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15
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Tzioumis NA, Cullen DA, Jolliffe KA, White NG. Selective Removal of Sulfate from Water by Precipitation with a Rigid Bis-amidinium Compound. Angew Chem Int Ed Engl 2023; 62:e202218360. [PMID: 36702770 DOI: 10.1002/anie.202218360] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/25/2023] [Accepted: 01/25/2023] [Indexed: 01/28/2023]
Abstract
A simple, readily prepared biphenyl bis-amidinium compound (1⋅Cl2 ) is able to selectively precipitate sulfate from water. The precipitant is effective at concentrations as low as 1 mM and shows complete selectivity against monovalent anions, and high selectivity even against CO3 2- and HPO4 2- . It is highly effective (>90 % sulfate removed) in both seawater and highly acidic conditions relevant to mining waste-streams. X-ray crystallography reveals that 1⋅SO4 forms a tightly packed, anhydrous, structure where each sulfate anion receives eight hydrogen bonds from amidinium N-H hydrogen bond donors.
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Affiliation(s)
- Nikki A Tzioumis
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Duncan A Cullen
- Research School of Chemistry, Australian National University, Canberra, ACT, 2600, Australia
| | - Katrina A Jolliffe
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Nicholas G White
- Research School of Chemistry, Australian National University, Canberra, ACT, 2600, Australia
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16
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Wagay SA, Khan L, Ali R. Recent Advancements in Ion-Pair Receptors. Chem Asian J 2023; 18:e202201080. [PMID: 36412231 DOI: 10.1002/asia.202201080] [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: 10/26/2022] [Revised: 11/18/2022] [Accepted: 11/21/2022] [Indexed: 11/23/2022]
Abstract
Over the past two decades, non-covalent chemistry has introduced various promising artificial receptors and revolutionized the host-guest chemistry. These versatile receptors have particularly been entertained in sensing and recognizing of diverse neutral molecules and/or ionic entities (e. g. anions, cations and ion-pair) of particular interest. Notably, supramolecular chemistry had given birth to a plethora of important molecules, explored in the chemical, biological, environmental, and pharmacological world to resolve the critical issues related to the human health while keeping environmental concerns in mind. Amongst the various types of supramolecular monotopic receptors (anions, cations, and neutral molecules), heteroditopic receptors (ion-pair receptors) consisting of distinct binding sites in one system for both cation and anion, have gained much interest from the scientific community in recent past because of their unique binding abilities. Interestingly, these promising artificial receptors have shown potential applications in sensing, recognition, transport and extraction processes besides their uses in salt/waste purification. Bearing the importance of these systems in mind, we intended to report the recent developments in ion-pair chemistry. Herein, we divided the whole document into three main sections; first one describes the introduction and history of the ion-pairs receptors. The second portion highlights the synthesis and applications of ion-pair receptors in sensing, recognition, molecular machines, photoswitching behaviour, extraction and transport properties, whereas the last part of this manuscript provides concluding remarks as well as future prospects of ion-pair receptors. We hope that this manuscript will be helpful to stimulating researchers around the globe to find out the hidden opportunities in this and related areas.
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Affiliation(s)
- Shafieq Ahmad Wagay
- Organic and Supramolecular Functional Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, Okhla, New Delhi, 110025, India
| | - Lubna Khan
- Organic and Supramolecular Functional Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, Okhla, New Delhi, 110025, India
| | - Rashid Ali
- Organic and Supramolecular Functional Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, Okhla, New Delhi, 110025, India
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17
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Squaramide-Naphthalimide Conjugates – Exploiting Self-Aggregation Effects in Acetate Recognition. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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18
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Li L, Liu H, Tang J, Zhang P, Qian Y. Anchoring H-Bond Donating/Accepting Pyrrolic Derivatives on Preorganized Scaffolds: Conformationally Switchable Bipedal/Tripodal and Locked Molecular Cage Ionophores for Potentiometric Sensing of Phosphate and Fluoride. Anal Chem 2022; 94:13762-13769. [PMID: 36165493 DOI: 10.1021/acs.analchem.2c02024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The ionophore properties of a myriad of conformationally switchable bipedal/tripodal receptors and locked molecular cages were evaluated here for the first time to fabricate potentiometric sensors for the determination of environmentally important phosphate and fluoride. Owing to the competent ionophore properties such as high binding selectivity and affinity, the developed ion-selective electrodes displayed response preference for phosphate and fluoride with a selectivity pattern that differs distinctly from traditional Hofmeister series. Binding constants of the ionophore-anion complexes are determined to underscore how modifications in the preorganization and H-bond donating/accepting ability of a given series of ionophores can be exploited to improve the performance for potentiometric sensing. While conformationally switchable bipedal/tripodal ionophores prefer tetrahedral oxyanions, locked molecular cages shift their preference to spherical halides gradually. Nernstian potential responses with good reversibility to target anions can be observed when shifting the optimized membrane electrodes in aqueous solutions within the concentration range of 10-6.5-10-2.0 M. Moreover, potentiometric determination of phosphate and fluoride in mineral water, soil, and tap water samples was achieved in a low μM concentration range with high accuracy, confirming their promising utility in real world applications.
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Affiliation(s)
- Long Li
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Haitao Liu
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Jing Tang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Peidong Zhang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yi Qian
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
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19
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Marchetti LA, Krämer T, Elmes RBP. Amidosquaramides - a new anion binding motif with pH sensitive anion transport properties. Org Biomol Chem 2022; 20:7056-7066. [PMID: 35993191 DOI: 10.1039/d2ob01176j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Stimuli responsive anion transport is becoming an important aspect of supramolecular anion recognition chemistry. Herein, we report the synthesis of a family of anion receptors that incorporate a new anion binding motif, amidosquaramides. We show using experimental and computational methods that these receptors have pKa values close to physiological pH but also display intramolecular H-bonding interactions that affect anion recognition. Moreover, moderate activity in a Cl-/NO3- exchange assay is observed at physiological pH that can be effectively 'switched on' when repeated under acidic conditions. The reported findings provide synthetic methods that can be used for the construction of more complex squaramide based anion receptors and also provide insight into the importance of conformational analysis when considering receptor design.
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Affiliation(s)
- Luke A Marchetti
- Department of Chemistry, National University of Ireland Maynooth, Maynooth, Ireland.
| | - Tobias Krämer
- Department of Chemistry, National University of Ireland Maynooth, Maynooth, Ireland.
| | - Robert B P Elmes
- Department of Chemistry, National University of Ireland Maynooth, Maynooth, Ireland. .,Synthesis and Solid State Pharmaceutical Centre (SSPC), Ireland
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20
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Chen SQ, Zhao W, Wu B. Separation of Sulfate Anion From Aqueous Solution Governed by Recognition Chemistry: A Minireview. Front Chem 2022; 10:905563. [PMID: 35572111 PMCID: PMC9099046 DOI: 10.3389/fchem.2022.905563] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 04/04/2022] [Indexed: 11/17/2022] Open
Abstract
The sulfate anion (SO42–) is known as an end metabolite of cysteine and methionine, and its proper concentration is associated with the expression of key functions in the physiological system. Thus, maintaining sulfate concentration at a precise level is of great significance for biology, environments, and industrial productions. Fundamental research for sulfate anion chemistry can help understand sulfate-associated physiological processes and related applications, for example, remediation. In this minireview, we summarized recent research progresses in sulfate recognition and separation using crystallization and liquid–liquid extraction. We focused on the studies wherein molecular recognition is the key element and is considered the driving force for selective sulfate separations from aqueous solution.
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21
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Lane JDE, Greenwood WJH, Day VW, Jolliffe KA, Bowman-James K, Adriaenssens L. Bis[squaramido]ferrocenes as electrochemical sulfate receptors. NEW J CHEM 2022. [DOI: 10.1039/d2nj03951f] [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
The bis[squaramido]ferrocene scaffold is introduced and shown to selectively bind and electrochemically report sulfate in competitive water/DMSO mixtures.
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Affiliation(s)
- Jakob D. E. Lane
- School of Chemistry, The University of Sydney, NSW, 2006, Australia
| | | | - Victor W. Day
- Department of Chemistry, University of Kansas, Lawrence, Kansas, 66045, USA
| | - Katrina A. Jolliffe
- School of Chemistry, The University of Sydney, NSW, 2006, Australia
- The University of Sydney Nano Institute (Sydney Nano), The University of Sydney, NSW, 2006, Australia
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22
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Chen SQ, Yu SN, Zhao W, Liang L, Gong Y, Yuan L, Tang J, Yang XJ, Wu B. Recognition-guided sulfate extraction and transport using tripodal hexaurea receptors. Inorg Chem Front 2022. [DOI: 10.1039/d2qi01991d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Hexaurea-based receptors enable highly efficient sulfate extraction (over 97%) via liquid–liquid extraction, and a controllable release of the bound sulfate is achieved by acidifying the solution, as demonstrated in the U-tube experiment.
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Affiliation(s)
- Si-Qi Chen
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
| | - Shu-Na Yu
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
| | - Wei Zhao
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
| | - Lin Liang
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
| | - Yunyan Gong
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
| | - Lifei Yuan
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
| | - Juan Tang
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
| | - Xiao-Juan Yang
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
| | - Biao Wu
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
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23
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Macreadie LK, Gilchrist AM, McNaughton DA, Ryder WG, Fares M, Gale PA. Progress in anion receptor chemistry. Chem 2022. [DOI: 10.1016/j.chempr.2021.10.029] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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24
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Mondal D, Ahmad M, Panwaria P, Upadhyay A, Talukdar P. Anion Recognition through Multivalent C-H Hydrogen Bonds: Anion-Induced Foldamer Formation and Transport across Phospholipid Membranes. J Org Chem 2021; 87:10-17. [PMID: 34908424 DOI: 10.1021/acs.joc.1c01408] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A series of triazole-cyanostilbene receptors were designed and synthesized. The receptor binds with the anions through various CH···anion hydrogen bonding interactions, where strong binding was observed for SO42- anions followed by Cl-, Br-, NO3-, and I-, calculated from the 1H NMR titration experiment. The NOESY NMR experiment of the receptor confirmed the formation of anion-induced folded conformation. The CH···anion hydrogen bonding interaction-mediated anion recognition and foldamer formation were further confirmed from geometry optimization studies of the anion-bound complex. The receptor transports Cl- anions efficiently compared to SO42- anions across the lipid bilayer membrane via a mobile carrier mechanism.
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Affiliation(s)
- Debashis Mondal
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune 411008, Maharashtra, India
| | - Manzoor Ahmad
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune 411008, Maharashtra, India
| | - Prakash Panwaria
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune 411008, Maharashtra, India
| | - Avisikta Upadhyay
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune 411008, Maharashtra, India
| | - Pinaki Talukdar
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune 411008, Maharashtra, India
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25
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Xiong S, He Q. Photoresponsive macrocycles for selective binding and release of sulfate. Chem Commun (Camb) 2021; 57:13514-13517. [PMID: 34842255 DOI: 10.1039/d1cc05506b] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A series of new photoresponsive macrocyclic anion receptors were synthesized via integration of an azobenzene unit and multiple anion binding sites. They exhibited highly selective binding to dianionic sulfate over other tested anions and the reversible release of sulfate could be triggered by visible light as inferred from mass spectroscopy, crystallographical analysis, NMR spectroscopy, and theoretical calculations.
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Affiliation(s)
- Shenglun Xiong
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineer Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, No. 2 Lushan Road (S), Yuelu District, Changsha 410082, P. R. China.
| | - Qing He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineer Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, No. 2 Lushan Road (S), Yuelu District, Changsha 410082, P. R. China.
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26
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Afsar NU, Li X, Zhu Y, Ge Z, Zhou Y, Zhao Z, Hussain A, Ge L, Fu R, Liu Z, Xu T. In‐situ interfacial polymerization endows surface enrichment of
COOH
groups on anion exchange membranes for efficient Cl
−
/
SO
4
2
−
separation. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210735] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Noor Ul Afsar
- Anhui Provincial Engineering Laboratory of Functional Membrane Materials and Technology, Department of Applied Chemistry, School of Chemistry and Materials Science University of Science and Technology of China Hefei People's Republic of China
| | - Xingya Li
- Anhui Provincial Engineering Laboratory of Functional Membrane Materials and Technology, Department of Applied Chemistry, School of Chemistry and Materials Science University of Science and Technology of China Hefei People's Republic of China
| | - Yanran Zhu
- Anhui Provincial Engineering Laboratory of Functional Membrane Materials and Technology, Department of Applied Chemistry, School of Chemistry and Materials Science University of Science and Technology of China Hefei People's Republic of China
| | - Zijuan Ge
- Anhui Provincial Engineering Laboratory of Functional Membrane Materials and Technology, Department of Applied Chemistry, School of Chemistry and Materials Science University of Science and Technology of China Hefei People's Republic of China
| | - Yue Zhou
- Applied Engineering Technology Research Center for Functional Membranes, Institute of Advanced Technology University of Science and Technology of China Hefei People's Republic of China
| | - Zhang Zhao
- Anhui Provincial Engineering Laboratory of Functional Membrane Materials and Technology, Department of Applied Chemistry, School of Chemistry and Materials Science University of Science and Technology of China Hefei People's Republic of China
| | - Arif Hussain
- Anhui Provincial Engineering Laboratory of Functional Membrane Materials and Technology, Department of Applied Chemistry, School of Chemistry and Materials Science University of Science and Technology of China Hefei People's Republic of China
| | - Liang Ge
- Anhui Provincial Engineering Laboratory of Functional Membrane Materials and Technology, Department of Applied Chemistry, School of Chemistry and Materials Science University of Science and Technology of China Hefei People's Republic of China
- Applied Engineering Technology Research Center for Functional Membranes, Institute of Advanced Technology University of Science and Technology of China Hefei People's Republic of China
| | - Rongqiang Fu
- Key Laboratory of Charged Polymeric Membrane Materials of Shandong Province Shandong Tianwei Membrane Technology Co., Ltd., The Hi‐tech Zone Weifang People's Republic of China
| | - Zhaoming Liu
- Key Laboratory of Charged Polymeric Membrane Materials of Shandong Province Shandong Tianwei Membrane Technology Co., Ltd., The Hi‐tech Zone Weifang People's Republic of China
| | - Tongwen Xu
- Anhui Provincial Engineering Laboratory of Functional Membrane Materials and Technology, Department of Applied Chemistry, School of Chemistry and Materials Science University of Science and Technology of China Hefei People's Republic of China
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27
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Abdullah SN, Mann G, Twyman LJ. Anion Transport Using Core Functionalized Hyperbranched Polymers and Evidence of a Dense Packed Limit Based on Molecular Weight. Molecules 2021; 26:molecules26226850. [PMID: 34833942 PMCID: PMC8625803 DOI: 10.3390/molecules26226850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 11/09/2021] [Accepted: 11/10/2021] [Indexed: 11/16/2022] Open
Abstract
Being able to bind, select, and transport species is central to a number of fields, including medicine, materials, and environmental science. In particular, recognizing a specific species from one phase and transporting it across, or into another phase, has obvious applications in environ-mental science, for example, removal of unwanted or toxic materials from an aqueous or organic phase. In this paper, we describe an approach that uses a functionalized dendritic polymer to bind and transport a small anionic molecule across an organic phase (and between two aqueous phases). The design was based on encapsulation principles borrowed from nature, where anions are bound and transported by proteins that have specific sites within their globular ordered structures. For the work reported here, a globular dendritic polymer functionalized with an isophthalamide-based receptor was used to replace the protein structure and anion-binding site. Along with control experiments, the binding and transport properties of two functionalized HBPs were assessed using a Pressman U tube experiment. Both HBPs demonstrated an enhanced ability to bind and transport anions (when compared to the anion-binding site used in isolation). Furthermore, optimum binding and transport occurred when the smaller of the two HBPs were used. This supports our previous observations regarding the existence of a dense packed limit for HBPs.
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28
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Pacheco-Liñán PJ, Alonso-Moreno C, Carrillo-Hermosilla F, Garzón-Ruiz A, Martín C, Sáez C, Albaladejo J, Bravo I. Novel Fluorescence Guanidine Molecules for Selective Sulfate Anion Detection in Water Complex Samples over a Wide pH Range. ACS Sens 2021; 6:3224-3233. [PMID: 34464091 DOI: 10.1021/acssensors.1c00876] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Quantitative analysis of sulfate anions in water still remains an important challenge for the society. Among all the methodologies, the most successful one is based on optical supramolecular receptors because the presence of small concentrations of sulfate anion modifies the photophysical properties of the receptor. In this case, fluorescence anion sensors have been designed by the incorporation of guanidine motifs into fluorenyl cores. The photophysical behaviors of the new mono- (M) and bis-guanidine (B) derivatives were studied through pH dependence, solvent effects, and ion sensing on steady-state spectra and time-resolved fluorescence spectroscopy. In more detail, the results demonstrate that M is a highly selective and sensitive sulfate ion receptor in real water samples and, even more importantly, its function remains unchanged at different ranges of pH. The reason behind this resides on the fluorescence quenching produced by an internal charge-transfer process when the sulfate anion is complexed with M. It is worth noting that the global and partial affinity constants (1010 M-2 and 105 M-1, respectively) of complex formation are far above from the current sulfate sensors in water (104 M-1) which give an LOD of 0.10 μM in water with an analytical range of 2.5-10 μM. On the other hand, although it would seem, at first sight, that the B derivate will be the most promising one, the possibility of having two simultaneous protonation states reduces the complex formation and, therefore, its sensitivity to sulfate anions. The results presented here offer the possibility of using a new molecule in water environments, which opens the door to infinite applications such as the detection of trace amounts of sulfate ions in food or water.
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Affiliation(s)
- Pedro J. Pacheco-Liñán
- Departamento de Química-Física. Facultad de Farmacia de Albacete, Universidad de Castilla-La Mancha, Albacete 02071, Spain
| | - Carlos Alonso-Moreno
- Departamento de Inorgánica, Orgánica y Bioquímica. Centro de Innovación en Química Avanzada (ORFEO-CINQA). Facultad de Farmacia de Albacete, Universidad de Castilla-La Mancha, Albacete 02071, Spain
- Unidad NanoCRIB. Centro Regional de Investigaciones Biomédicas, Albacete 02071, Spain
| | - Fernando Carrillo-Hermosilla
- Departamento de Inorgánica, Orgánica y Bioquímica. Centro de Innovación en Química Avanzada (ORFEO-CINQA). Facultad de Ciencias y Tecnologías Químicas. Universidad de Castilla-La Mancha, Ciudad Real 13071, Spain
| | - Andrés Garzón-Ruiz
- Departamento de Química-Física. Facultad de Farmacia de Albacete, Universidad de Castilla-La Mancha, Albacete 02071, Spain
| | - Cristina Martín
- Departamento de Química-Física. Facultad de Farmacia de Albacete, Universidad de Castilla-La Mancha, Albacete 02071, Spain
- Unidad NanoCRIB. Centro Regional de Investigaciones Biomédicas, Albacete 02071, Spain
| | - Carla Sáez
- Departamento de Química-Física. Facultad de Farmacia de Albacete, Universidad de Castilla-La Mancha, Albacete 02071, Spain
- Unidad NanoCRIB. Centro Regional de Investigaciones Biomédicas, Albacete 02071, Spain
| | - José Albaladejo
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad de Castilla-La Mancha, Avenida Camilo José Cela, 10, Ciudad Real 13071, Spain
| | - Iván Bravo
- Departamento de Química-Física. Facultad de Farmacia de Albacete, Universidad de Castilla-La Mancha, Albacete 02071, Spain
- Unidad NanoCRIB. Centro Regional de Investigaciones Biomédicas, Albacete 02071, Spain
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29
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Nguyen BN, Thoburn JD, Grommet AB, Howe DJ, Ronson TK, Ryan HP, Bolliger JL, Nitschke JR. Coordination Cages Selectively Transport Molecular Cargoes Across Liquid Membranes. J Am Chem Soc 2021; 143:12175-12180. [PMID: 34337947 PMCID: PMC8397303 DOI: 10.1021/jacs.1c04799] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Indexed: 12/27/2022]
Abstract
Chemical purifications are critical processes across many industries, requiring 10-15% of humanity's global energy budget. Coordination cages are able to catch and release guest molecules based upon their size and shape, providing a new technological basis for achieving chemical separation. Here, we show that aqueous solutions of FeII4L6 and CoII4L4 cages can be used as liquid membranes. Selective transport of complex hydrocarbons across these membranes enabled the separation of target compounds from mixtures under ambient conditions. The kinetics of cage-mediated cargo transport are governed by guest binding affinity. Using sequential transport across two consecutive membranes, target compounds were isolated from a mixture in a size-selective fashion. The selectivities of both cages thus enabled a two-stage separation process to isolate a single compound from a mixture of physicochemically similar molecules.
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Affiliation(s)
| | - John D. Thoburn
- Randolph-Macon
College, Department of Chemistry, Ashland, Virginia 23005, United States
| | - Angela B. Grommet
- University
of Cambridge, Department of Chemistry, Cambridge CB2 1EW, U.K.
| | - Duncan J. Howe
- University
of Cambridge, Department of Chemistry, Cambridge CB2 1EW, U.K.
| | - Tanya K. Ronson
- University
of Cambridge, Department of Chemistry, Cambridge CB2 1EW, U.K.
| | - Hugh P. Ryan
- University
of Cambridge, Department of Chemistry, Cambridge CB2 1EW, U.K.
| | - Jeanne L. Bolliger
- University
of Cambridge, Department of Chemistry, Cambridge CB2 1EW, U.K.
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30
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Kumawat LK, Wynne C, Cappello E, Fisher P, Brennan LE, Strofaldi A, McManus JJ, Hawes CS, Jolliffe KA, Gunnlaugsson T, Elmes RBP. Squaramide-Based Self-Associating Amphiphiles for Anion Recognition. Chempluschem 2021; 86:1058-1068. [PMID: 34351081 PMCID: PMC8456826 DOI: 10.1002/cplu.202100275] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/08/2021] [Indexed: 12/03/2022]
Abstract
The synthesis and characterisation of two novel self-assembled amphiphiles (SSAs) SQS-1 and SQS-2 are reported. Both compounds, based on the squaramide motif, were fully soluble in a range of solvents and were shown to undergo self-assembly through a range of physical techniques. Self-assembly was shown to favour the formation of crystalline domains on the nanoscale but also fibrillar film formation, as suggested by SEM analysis. Moreover, both SQS-1 and SQS-2 were capable of anion recognition in DMSO solution as demonstrated using 1 H NMR and UV/Vis absorption spectroscopy, but displayed lower binding affinities for various anions when compared against other squaramide based receptors. In more competitive solvent mixtures SQS-1 gave rise to a colourimetric response in the presence of HPO42- that was clearly visible to the naked eye. We anticipate that the observed response is due to the basic nature of the HPO42- anion when compared against other biologically relevant anions.
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Affiliation(s)
- Lokesh K. Kumawat
- Department of ChemistryMaynooth UniversityNational University of IrelandMaynoothCo. KildareIreland
| | - Conor Wynne
- Department of ChemistryMaynooth UniversityNational University of IrelandMaynoothCo. KildareIreland
- Synthesis and Solid State Pharmaceutical Centre (SSPC)Ireland
| | - Emanuele Cappello
- School of ChemistryTrinity Biomedical Sciences Institute (TBSI)Trinity College DublinThe University of DublinDublin 2Ireland
| | - Peter Fisher
- Department of ChemistryMaynooth UniversityNational University of IrelandMaynoothCo. KildareIreland
| | - Luke E. Brennan
- Department of ChemistryMaynooth UniversityNational University of IrelandMaynoothCo. KildareIreland
| | - Alessandro Strofaldi
- Department of ChemistryMaynooth UniversityNational University of IrelandMaynoothCo. KildareIreland
| | - Jennifer J. McManus
- Department of ChemistryMaynooth UniversityNational University of IrelandMaynoothCo. KildareIreland
- HH Wills Physics LaboratoryUniversity of BristolTyndall AvenueBristolBS8 1TLUnited Kingdom
- Synthesis and Solid State Pharmaceutical Centre (SSPC)Ireland
| | - Chris S. Hawes
- School of Chemical and Physical SciencesKeele UniversityKeeleST5 5BGUnited Kingdom
| | | | - Thorfinnur Gunnlaugsson
- School of ChemistryTrinity Biomedical Sciences Institute (TBSI)Trinity College DublinThe University of DublinDublin 2Ireland
- Synthesis and Solid State Pharmaceutical Centre (SSPC)Ireland
| | - Robert B. P. Elmes
- Department of ChemistryMaynooth UniversityNational University of IrelandMaynoothCo. KildareIreland
- Kathleen Lonsdale Institute for Human Health ResearchMaynooth UniversityMaynoothCo. KildareIreland
- Synthesis and Solid State Pharmaceutical Centre (SSPC)Ireland
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31
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Cuřínová P, Winkler M, Krupková A, Císařová I, Budka J, Wun CN, Blechta V, Malý M, Červenková Št’astná L, Sýkora J, Strašák T. Transport of Anions across the Dialytic Membrane Induced by Complexation toward Dendritic Receptors. ACS OMEGA 2021; 6:15514-15522. [PMID: 34151129 PMCID: PMC8210436 DOI: 10.1021/acsomega.1c02142] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 05/20/2021] [Indexed: 06/13/2023]
Abstract
A novel approach to inducing anion transport over the dialytic membrane was proposed and successfully tested using the dihydrogen phosphate anion. The anion receptor based on isophthalamide was anchored on a dendritic skeleton, resulting in a macromolecular structure with a limited possibility to cross the dialytic membrane. The dendritic receptor was placed in a compartment separated from a mother anion solution by a membrane. The resulting anion complexation reduced the actual concentration of the anion and induced the anion transfer across the membrane. The anion concentration in mother solution decreased, while it was found to be increased in the compartment with the dendritic receptor. This phenomenon was observed using dendritic receptors with four and eight complexation sites. A detailed analysis of a series of dialytic experiments by 1H NMR spectroscopy enabled an assessment of the complexation behavior of both receptors and an evaluation of the dendritic effect on the anion complexation.
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Affiliation(s)
- Petra Cuřínová
- Institute
of Chemical Process Fundamentals of CAS v.v.i., Rozvojová 135, Prague 6 165 02, Czech Republic
- Faculty
of Science, J. E. Purkyně University, České mládeže
8, Ùstí nad Labem 400 96, Czech Republic
| | - Maximilian Winkler
- Institute
of Chemical Process Fundamentals of CAS v.v.i., Rozvojová 135, Prague 6 165 02, Czech Republic
| | - Alena Krupková
- Institute
of Chemical Process Fundamentals of CAS v.v.i., Rozvojová 135, Prague 6 165 02, Czech Republic
- Faculty
of Science, J. E. Purkyně University, České mládeže
8, Ùstí nad Labem 400 96, Czech Republic
| | - Ivana Císařová
- Department
of Inorganic Chemistry, Faculty of Sciences, Charles University, Hlavova 2030, Prague 2 128 40, Czech Republic
| | - Jan Budka
- Department
of Organic Chemistry, University of Chemistry
and Technology Prague, Technická 5, Prague 6 166 28, Czech Republic
| | - Chang Nga Wun
- Department
of Organic Chemistry, University of Chemistry
and Technology Prague, Technická 5, Prague 6 166 28, Czech Republic
| | - Vratislav Blechta
- Institute
of Chemical Process Fundamentals of CAS v.v.i., Rozvojová 135, Prague 6 165 02, Czech Republic
| | - Marek Malý
- Faculty
of Science, J. E. Purkyně University, České mládeže
8, Ùstí nad Labem 400 96, Czech Republic
| | - Lucie Červenková Št’astná
- Institute
of Chemical Process Fundamentals of CAS v.v.i., Rozvojová 135, Prague 6 165 02, Czech Republic
- Faculty
of Science, J. E. Purkyně University, České mládeže
8, Ùstí nad Labem 400 96, Czech Republic
| | - Jan Sýkora
- Institute
of Chemical Process Fundamentals of CAS v.v.i., Rozvojová 135, Prague 6 165 02, Czech Republic
| | - Tomáš Strašák
- Institute
of Chemical Process Fundamentals of CAS v.v.i., Rozvojová 135, Prague 6 165 02, Czech Republic
- Faculty
of Science, J. E. Purkyně University, České mládeže
8, Ùstí nad Labem 400 96, Czech Republic
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32
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Zaleskaya M, Jagleniec D, Romański J. Macrocyclic squaramides as ion pair receptors and fluorescent sensors selective towards sulfates. Dalton Trans 2021; 50:3904-3915. [PMID: 33635308 DOI: 10.1039/d0dt04273k] [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
Through the high dilution technique, we obtained macrocyclic ion pair receptors R1 and R2, an anion receptor R3, and a fluorescent sensor R4 using a combination of particular members of simple libraries consisting of synthesized diamines and methyl squarates, respectively. The receptors were investigated in terms of anion and ion pair binding using the 1H NMR titration method in DMSO-d6. We found that the major contribution to the anion binding comes from the interaction with the squaramide protons rather than with the amide functions of the receptors. The receptors demonstrated the highest affinity towards benzoates and sulfates over the anions tested, and in the case of sulfate binding more complex equilibria in solution were observed. Unlike the anion receptor R3, the ion pair receptor R1 was found to recognize anions in an enhanced manner with the assistance of sodium or potassium cations. Tethering of a simple fluorophore in close proximity to the amide function of receptor R4 resulted in an optical ion pair sensor selective towards sulfates. DFT calculations carried out for the 1 : 1 complexes of R3 with the anions helped clarify this selectivity, showing more effective participation of tetrahedral sulfate anions in binding with the amide function than in the case of benzoates or chlorides.
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Affiliation(s)
- Marta Zaleskaya
- Faculty of Chemistry, University of Warsaw, Pasteura 1, PL 02-093 Warsaw, Poland.
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33
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Li L, Du P, Duan Y, Zhang Y, Li Y, Qian Y, Zhang P, Guo Q, Ding J. Hydrogen Bond-Based Macrocyclic and Tripodal Neutral Ionophores for Highly Selective Polymeric Membrane Sulfate-Selective Electrodes. ACS Sens 2021; 6:245-251. [PMID: 33373189 DOI: 10.1021/acssensors.0c02231] [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] [Indexed: 11/29/2022]
Abstract
Four hydrogen bond-based macrocyclic and tripodal neutral receptors with increasing conformational complementarity with sulfate were used for the first time as ionophores to develop polymeric membrane sulfate-selective electrodes. Optimizing the membrane composition such as ionophores, lipophilic additives, and plasticizers yielded ISEs which showed Nernstian response to sulfate with the best selectivity so far and improved detection limits (a slope of -29.8 mV/dec in the linear range of 1 × 10-6-1 × 10-1 M with a detection limit of 5 × 10-7 M), which led to the success of the determination of sulfate in drinking water samples and neomycine tablets. The anion-ionophore complex constants in the membrane phase were determined and correlated with the selectivity sequence of the ISEs. Studies on the influence of pH of the sample solution demonstrated that the developed ISEs can be operated in a wide pH range of 3-8 with fast response and rapid (in 1 min) and long lifetime. The success of these ionophores represents a feasible strategy for overcoming the "Hofmeister series" by employing a combination of complementarity and hydrogen bonds.
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Affiliation(s)
- Long Li
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Pengcheng Du
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Yinghui Duan
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Yihao Zhang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Ying Li
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Yi Qian
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Peidong Zhang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Qingjie Guo
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan 750021, P. R. China
| | - Jiawang Ding
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation and Shandong Provincial Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Yantai, Shandong 264003, P. R. China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266200, P. R. China
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34
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Williams GT, Haynes CJE, Fares M, Caltagirone C, Hiscock JR, Gale PA. Advances in applied supramolecular technologies. Chem Soc Rev 2021; 50:2737-2763. [DOI: 10.1039/d0cs00948b] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Supramolecular chemistry has successfully built a foundation of fundamental understanding. However, with this now achieved, we show how this area of chemistry is moving out of the laboratory towards successful commercialisation.
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Affiliation(s)
| | | | - Mohamed Fares
- School of Chemistry
- The University of Sydney
- Sydney
- Australia
| | - Claudia Caltagirone
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- 09042 Monserrato (CA)
- Italy
| | | | - Philip A. Gale
- School of Chemistry
- The University of Sydney
- Sydney
- Australia
- The University of Sydney Nano Institute (Sydney Nano)
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35
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La Cognata S, Mobili R, Merlo F, Speltini A, Boiocchi M, Recca T, Maher LJ, Amendola V. Sensing and Liquid-Liquid Extraction of Dicarboxylates Using Dicopper Cryptates. ACS OMEGA 2020; 5:26573-26582. [PMID: 33110985 PMCID: PMC7581268 DOI: 10.1021/acsomega.0c03337] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 08/14/2020] [Indexed: 06/11/2023]
Abstract
We report the investigation of dicopper(II) bistren cryptate, containing naphthyl spacers between the tren subunits, as a receptor for polycarboxylates in neutral aqueous solution. An indicator displacement assay for dicarboxylates was also developed by mixing the azacryptate with the fluorescent indicator 5-carboxyfluorescein in a 50:1 molar ratio. Fluorimetric studies showed a significant restoration of fluorophore emission upon addition of fumarate anions followed by succinate and isophthalate. The introduction of hexyl chains on the naphthalene groups created a novel hydrophobic cage; the corresponding dicopper complex was investigated as an extractant for dicarboxylates from neutral water into dichloromethane. The liquid-liquid extraction of succinate-as a model anion-was successfully achieved by exploiting the high affinity of this anionic guest for the azacryptate cavity. Extraction was monitored through the changes in the UV-visible spectrum of the dicopper complex in dichloromethane and by measuring the residual concentration of succinate in the aqueous phase by HPLC-UV. The successful extraction was also confirmed by 1H-NMR spectroscopy. Considering the relevance of polycarboxylates in biochemistry and in the environmental field, e.g., as waste products of industrial processes, our results open new perspectives for research in all contexts where recognition, sensing, or extraction of polycarboxylates is required.
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Affiliation(s)
- Sonia La Cognata
- Department
of Chemistry, Università degli Studi
di Pavia, v.le T. Taramelli 12, Pavia 27100, Italy
| | - Riccardo Mobili
- Department
of Chemistry, Università degli Studi
di Pavia, v.le T. Taramelli 12, Pavia 27100, Italy
| | - Francesca Merlo
- Department
of Chemistry, Università degli Studi
di Pavia, v.le T. Taramelli 12, Pavia 27100, Italy
| | - Andrea Speltini
- Department
of Drug Sciences, Università degli
Studi di Pavia,via Taramelli 12, Pavia 27100, Italy
| | - Massimo Boiocchi
- Centro
Grandi Strumenti, Università degli Studi di Pavia, via A. Bassi 21, Pavia 27100, Italy
| | - Teresa Recca
- Centro
Grandi Strumenti, Università degli Studi di Pavia, via A. Bassi 21, Pavia 27100, Italy
| | - Louis J. Maher
- Department
of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota 55905, United States
| | - Valeria Amendola
- Department
of Chemistry, Università degli Studi
di Pavia, v.le T. Taramelli 12, Pavia 27100, Italy
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36
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Li A, Zhai H, Li J, He Q. Practical Applications of Supramolecular Extraction with Macrocycles. CHEM LETT 2020. [DOI: 10.1246/cl.200409] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Aimin Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Huijuan Zhai
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Jilian Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Qing He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
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37
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Zaleskaya M, Karbarz M, Wilczek M, Dobrzycki Ł, Romański J. Cooperative Transport and Selective Extraction of Sulfates by a Squaramide-Based Ion Pair Receptor: A Case of Adaptable Selectivity. Inorg Chem 2020; 59:13749-13759. [PMID: 32885659 PMCID: PMC7509838 DOI: 10.1021/acs.inorgchem.0c02114] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Indexed: 11/30/2022]
Abstract
The use of a squaramide-based ion pair receptor offers a solution to the very challenging problem of extraction and transport of extremely hydrated sulfate salt. Herein we demonstrate for the first time that a neutral receptor is able not only to selectively extract but also to transport sulfates in the form of an alkali metal salt across membranes and to do so in a cooperative manner while overcoming the Hofmeister bias. This was made possible by an enhancement in anion binding promoted by cation assistance and by diversifying the stoichiometry of receptor complexes with sulfates and other ions. The existence of a peculiar 4:1 complex of receptor 2 with sulfates in solution was confirmed by UV-vis and 1H NMR titration experiments, DOSY and DLS measurements, and supported by solid-state X-ray measurements. By varying the separation technique and experimental conditions, it was possible to switch the depletion of the aqueous layer into extremely hydrophilic or less lipophilic salts, thus obtaining the desired selectivity.
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Affiliation(s)
- Marta Zaleskaya
- Faculty of Chemistry, University of Warsaw, Pasteura 1, PL 02-093 Warsaw, Poland
| | - Marcin Karbarz
- Faculty of Chemistry, University of Warsaw, Pasteura 1, PL 02-093 Warsaw, Poland
| | - Marcin Wilczek
- Faculty of Chemistry, University of Warsaw, Pasteura 1, PL 02-093 Warsaw, Poland
| | - Łukasz Dobrzycki
- Faculty of Chemistry, University of Warsaw, Pasteura 1, PL 02-093 Warsaw, Poland
| | - Jan Romański
- Faculty of Chemistry, University of Warsaw, Pasteura 1, PL 02-093 Warsaw, Poland
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38
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