1
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Arun A, Tay HM, Beer PD. Mechanically interlocked host systems for ion-pair recognition. Chem Commun (Camb) 2024. [PMID: 39300837 DOI: 10.1039/d4cc03916e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2024]
Abstract
The ever-increasing interest directed towards the construction of host architectures capable of the strong and selective recognition of various ionic species of biological, medical and environmental importance has identified mechanically interlocked molecules (MIMs), such as rotaxanes and catenanes, as potent host systems, owing to their unique three-dimensional topologically preorganised cavity recognition environments. Ion-pair receptors are steadily gaining prominence over monotopic receptor analogues due to their enhanced binding strength and selectivity, demonstrated primarily through acyclic and macrocyclic heteroditopic host systems. Exploiting the mechanical bond for ion-pair recognition through the strategic design of neutral heteroditopic MIMs offers exciting opportunities to accomplish potent and effective binding while mitigating competing interactions from the bulk solvent and counter-ions. This review details the design and ion-pair recognition capabilities of rotaxanes and catenanes employing hydrogen bonding (HB) and halogen bonding (XB) motifs, providing valuable insight into the burgeoning field and inspiration for future research.
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Affiliation(s)
- Arya Arun
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford OX1 3TA, UK.
- Department of Chemistry, University of Oxford, Rodney Porter Building, Sibthorp Road, Oxford OX1 3QU, UK
| | - Hui Min Tay
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford OX1 3TA, UK.
| | - Paul D Beer
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford OX1 3TA, UK.
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2
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Li M, Yang Y, Liu R, Wang Y, Shao L, Hua B, Liu X, Huang F. Pillar[5]arene-Based Ion-Pair Recognition for Encapsulation of a Stilbazolium-Type Dye with Enhanced Photophysical Properties and Nonlinear Optical Activity. Chemistry 2024; 30:e202402345. [PMID: 38967353 DOI: 10.1002/chem.202402345] [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: 06/19/2024] [Revised: 07/02/2024] [Accepted: 07/03/2024] [Indexed: 07/06/2024]
Abstract
Constructing organic composite materials through molecular recognition has emerged as an important theme in materials science. Here we report an ion-pair recognition system involving the use of a propoxylated pillar[5]arene (PrP5) to modulate the solid-state photophysical properties of dye trans-4'-(dimethylamino)-N-methyl-4-stilbazolium hexafluorophosphate (DMASP). Single crystal X-ray diffraction analysis reveals that the dye guest DMASP is encapsulated by PrP5 to form a 2 : 1 host-guest complex 2PrP5⸧DMASP in the crystalline state. The macrocyclic skeleton of PrP5 imposes restrictions on the intramolecular motions of the dye guest, leading to a significant enhancement of its fluorescence emission. Additionally, within the 2PrP5⸧DMASP complex crystal structure, DMASP molecules are found to display two possible opposite orientations in the one-dimensional channels formed by PrP5 molecules. This arrangement is believed to alter the overall solid-state packing structure of DMASP, thereby activating its nonlinear optical activity. This work not only reports a novel ion-pair molecular recognition system based on pillararenes but also provides valuable insights into the modulation of the crystalline state photophysical properties of organic dyes via cocrystal engineering.
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Affiliation(s)
- Ming Li
- Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou, 310058, P. R. China
- Zhejiang-Israel Joint Laboratory of Self-Assembling Functional Materials, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 311215, P. R. China
| | - Yuting Yang
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Rui Liu
- Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou, 310058, P. R. China
- Zhejiang-Israel Joint Laboratory of Self-Assembling Functional Materials, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 311215, P. R. China
| | - Yanfang Wang
- Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou, 310058, P. R. China
- Zhejiang-Israel Joint Laboratory of Self-Assembling Functional Materials, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 311215, P. R. China
| | - Li Shao
- Department of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
| | - Bin Hua
- Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou, 310058, P. R. China
- Zhejiang-Israel Joint Laboratory of Self-Assembling Functional Materials, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 311215, P. R. China
| | - Xiaofeng Liu
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Feihe Huang
- Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou, 310058, P. R. China
- Zhejiang-Israel Joint Laboratory of Self-Assembling Functional Materials, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 311215, P. R. China
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3
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Munasinghe VK, Tay HM, Manawadu D, Pancholi J, Zhang Z, Beer PD. Lithium chloride selective ion-pair recognition by heteroditopic [2]rotaxanes. Dalton Trans 2024; 53:14219-14225. [PMID: 39115089 DOI: 10.1039/d4dt01807a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
Abstract
The first heteroditopic [2]rotaxane host systems capable of strong and selective binding of lithium chloride ion-pair species are described. Importantly, a cooperative 'switch on' mechanism was found to operate, in which complexation of a lithium metal cation enhances the halide anion affinity of the rotaxanes via a combination of favourable proximal electrostatic and preorganised allosteric effects. The mechanically bonded rotaxane host design features a macrocycle component possessing a 2,6-dialkoxy pyridyl cation binding motif and an isophthalamide anion binding group, as well as an axle component functionalised with either a halogen bonding (XB) iodotriazole or hydrogen bonding (HB) prototriazole moiety. Extensive quantitative 1H NMR titration studies in CD3CN/CDCl3 solvent mixtures determined enhanced ion-pair binding affinities for lithium halides over the corresponding sodium or potassium halide salts, with the axle prototriazole-containing HB rotaxane in particular demonstrating a marked selectivity for lithium chloride. Solid-state X-ray crystallographic studies and computational DFT investigations provide evidence for a [2]rotaxane host axle-separated ion-pair binding mode, in which complementary cation and anion binding motifs from both the macrocycle and axle components act convergently to recognise each of the charged guest species.
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Affiliation(s)
- Vihanga K Munasinghe
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory Mansfield Road, Oxford OX1 3TA, UK.
| | - Hui Min Tay
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory Mansfield Road, Oxford OX1 3TA, UK.
| | - Dilhan Manawadu
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, Oxford, OX1 3QZ, UK
| | - Jessica Pancholi
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory Mansfield Road, Oxford OX1 3TA, UK.
| | - Zongyao Zhang
- Chemistry Department, King's College London, Britannia House, London SE1 1DB, UK
| | - Paul D Beer
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory Mansfield Road, Oxford OX1 3TA, UK.
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4
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Tay HM, Docker A, Hua C, Beer PD. Selective sodium halide over potassium halide binding and extraction by a heteroditopic halogen bonding [2]catenane. Chem Sci 2024; 15:13074-13081. [PMID: 39148789 PMCID: PMC11322978 DOI: 10.1039/d4sc03381g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Accepted: 07/12/2024] [Indexed: 08/17/2024] Open
Abstract
The synthesis and ion-pair binding properties of a heteroditopic [2]catenane receptor exhibiting highly potent and selective recognition of sodium halide salts are described. The receptor design consists of a bidentate halogen bonding donor motif for anion binding, as well as a di(ethylene glycol)-derived cation binding pocket which dramatically enhances metal cation affinity over previously reported homo[2]catenane analogues. 1H NMR cation, anion and ion-pair binding studies reveal significant positive cooperativity between the cation and anion binding events in which cation pre-complexation to the catenane subsequently 'switches-on' anion binding. Notably, the heteroditopic catenane displayed impressive selectivity for sodium halide recognition over the corresponding potassium halides. We further demonstrate that the catenane is capable of extracting solid alkali metal salts into organic media. Crucially, the observed solution phase binding selectivity for sodium halides translates to superior functional extraction capabilities of these salts relative to potassium halides, overcoming the comparatively higher lattice enthalpies NaX > KX dictated by the smaller alkali metal sodium cation. This is further exemplified in competitive solid-liquid experiments which revealed the exclusive extraction of sodium halide salts from solid mixtures of sodium and potassium halide salts.
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Affiliation(s)
- Hui Min Tay
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford Mansfield Road Oxford OX1 3TA UK
| | - Andrew Docker
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford Mansfield Road Oxford OX1 3TA UK
- Yusuf Hamied Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Carol Hua
- School of Chemistry, The University of Melbourne Parkville Victoria 3010 Australia
| | - Paul D Beer
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford Mansfield Road Oxford OX1 3TA UK
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5
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Heo NJ, Oh JH, Li A, Lee K, He Q, Sessler JL, Kim SK. Ion pair extractant selective for LiCl and LiBr. Chem Sci 2024:d4sc03760j. [PMID: 39144460 PMCID: PMC11317791 DOI: 10.1039/d4sc03760j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Accepted: 08/01/2024] [Indexed: 08/16/2024] Open
Abstract
Improved methods for achieving the selective extraction of lithium salts from lithium sources, including rocky ores, salt-lake brines, and end-of-life lithium-ion batteries, could help address projected increases in the demand for lithium. Here, we report an ion pair receptor (2) capable of extracting LiCl and LiBr into an organic receiving phase both from the solid state and from aqueous solutions. Ion pair receptor 2 consists of a calix[4]pyrrole framework, which acts as an anion binding site, linked to a phenanthroline cation binding motif via ether linkages. Receptor 2 binds MgBr2 and CaCl2 with high selectivity over the corresponding lithium salts in a nonpolar aprotic solvent. The preference for Mg2+ and Ca2+ salts is reversed in polar protic media, allowing receptor 2 to complex LiCl and LiBr with high selectivity and affinity in organic media containing methanol or water. The effectiveness of receptor 2 as an extractant for LiCl and LiBr under liquid-liquid extraction (LLE) conditions was found to be enhanced by the presence of other potentially competitive salts in the aqueous source phase.
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Affiliation(s)
- Nam Jung Heo
- Department of Chemistry, Research Institute of Natural Sciences, Gyeongsang National University Jinju 52828 Korea
| | - Ju Hyun Oh
- Department of Chemistry, Research Institute of Natural Sciences, Gyeongsang National University Jinju 52828 Korea
| | - Aimin Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China
| | - Kyounghoon Lee
- Department of Chemistry Education, Research Institute of Natural Sciences, Gyeongsang National University Jinju 52828 Korea
| | - Qing He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China
| | - Jonathan L Sessler
- Department of Chemistry, The University of Texas at Austin 105 E. 24th Street-Stop A5300 Austin Texas 78712-1224 USA
| | - Sung Kuk Kim
- Department of Chemistry, Research Institute of Natural Sciences, Gyeongsang National University Jinju 52828 Korea
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6
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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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7
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Bąk K, Marques I, Kuhn H, Christensen KE, Félix V, Beer PD. Fullerene-Functionalized Halogen-Bonding Heteroditopic Hosts for Ion-Pair Recognition. J Am Chem Soc 2023; 145:27367-27379. [PMID: 38060428 PMCID: PMC10739994 DOI: 10.1021/jacs.3c07774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 11/02/2023] [Accepted: 11/06/2023] [Indexed: 12/21/2023]
Abstract
Despite their hydrophobic surfaces with localized π-holes and rigid well-defined architectures providing a scaffold for preorganizing binding motifs, fullerenes remain unexplored as potential supramolecular host platforms for the recognition of anions. Herein, we present the first example of the rational design, synthesis, and unique recognition properties of novel fullerene-functionalized halogen-bonding (XB) heteroditopic ion-pair receptors containing cation and anion binding domains spatially separated by C60. Fullerene spatial separation of the XB donors and the crown ether complexed potassium cation resulted in a rare example of an artificial receptor containing two anion binding sites with opposing preferences for hard and soft halides. Importantly, the incorporation of the C60 motif into the heteroditopic receptor structure has a significant effect on the halide binding selectivity, which is further amplified upon K+ cation binding. The potassium cation complexed fullerene-based receptors exhibit enhanced selectivity for the soft polarizable iodide ion which is assisted by the C60 scaffold preorganizing the potent XB-based binding domains, anion-π interactions, and the exceptional polarizability of the fullerene moiety, as evidenced from DFT calculations. These observations serve to highlight the unique properties of fullerene surfaces for proximal charged guest binding with potential applications in construction of selective molecular sensors and modulating the properties of solar cell devices.
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Affiliation(s)
- Krzysztof
M. Bąk
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, Oxford OX1 3TA, U.K.
| | - Igor Marques
- CICECO
- Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Heike Kuhn
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, Oxford OX1 3TA, U.K.
| | - Kirsten E. Christensen
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, Oxford OX1 3TA, U.K.
| | - Vítor Félix
- CICECO
- Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Paul D. Beer
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, Oxford OX1 3TA, U.K.
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8
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Li XH, Cui YY, Wu X, Abdukayum A, Yang CX. Fabrication of zwitterionic magnetic microporous organic network for efficient extraction of fluoroquinolone antibiotics from meat samples. Food Chem 2023; 429:136808. [PMID: 37459710 DOI: 10.1016/j.foodchem.2023.136808] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 06/24/2023] [Accepted: 07/03/2023] [Indexed: 08/24/2023]
Abstract
A zwitterionic magnetic microporous organic network (MMON-SO3H-NH2) with numerous amino and sulfonic acid ion-pare binding sites was designed and synthesized for efficient magnetic solid-phase extraction (MSPE) of fluoroquinolones (FQs) from meat samples. The core-shell MMON-SO3H-NH2 offered large specific surface area, rapid magnetic responsiveness, good stability, and multiple binding sites for FQs. The density functional theory and independent gradient model evaluations confirmed hydrogen bonding, π-π and ion-pair interactions between MMON-SO3H-NH2 and FQs. Under the optimal conditions, the established MMON-SO3H-NH2-MSPE-HPLC-UV method gave wide linear range (0.15-1000 μg L-1), low limits of detection (0.05-4.5 μg L-1) and limits of quantitation (0.15-13 μg L-1), and high enrichment factors (82.1-99.6) using 3 mg of adsorbent. This work demonstrates that the preparation of zwitterionic MONs is an efficient way to promote the extraction performance of MONs for zwitterionic targets and provides an effective sample pretreatment method for enriching and monitoring FQs in complex food matrices.
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Affiliation(s)
- Xu-Hui Li
- Laboratory of Xinjiang Native Medicinal and Edible Plant Resources Chemistry, College of Chemistry and Environmental Sciences, Kashi University, Kashi 844000, China
| | - Yuan-Yuan Cui
- School of Pharmaceutical Sciences & Institute of Materia Medica, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, China
| | - Xun Wu
- Hangzhou Institute for Food and Drug Control, Hangzhou, Zhejiang 310000, China
| | - Abdukader Abdukayum
- Laboratory of Xinjiang Native Medicinal and Edible Plant Resources Chemistry, College of Chemistry and Environmental Sciences, Kashi University, Kashi 844000, China
| | - Cheng-Xiong Yang
- School of Pharmaceutical Sciences & Institute of Materia Medica, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, China.
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9
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Kashyap P, Sharma P, Gohil R, Rajpurohit D, Mishra D, Shrivastav PS. Progress in appended calix[4]arene-based receptors for selective recognition of copper ions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 303:123188. [PMID: 37515889 DOI: 10.1016/j.saa.2023.123188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 07/08/2023] [Accepted: 07/20/2023] [Indexed: 07/31/2023]
Abstract
In the past two decades, there has been significant progress in the design and development of synthetic receptors for molecular recognition as they find application in the field of chemical, biological, medical, and environmental sciences. Synthetic receptors based on calix systems appended with fluorogenic and chromogenic groups have gained considerable attention for sensing and recognition of ions and molecules. Copper (Cu2+) is an essential element required in trace amounts in all living organisms to carry out various biological processes. The aim of this review is to summarize advancement in π-conjugated fluorogenic and chromogenic groups appended to calix[4]arene motifs for detection and quantitation of Cu2+ ion. The focus is to present a comprehensive account of extended calix[4]arene systems with different linkers and highlight the unique design and binding characteristics for the recognition and sensing of Cu2+ ions.
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Affiliation(s)
- Priyanka Kashyap
- Department of Chemistry, School of Sciences, Gujarat University, Navrangpura, Ahmedabad-380009, Gujarat, India
| | - Payal Sharma
- Department of Chemistry, School of Sciences, Gujarat University, Navrangpura, Ahmedabad-380009, Gujarat, India
| | - Ritu Gohil
- Department of Chemistry, School of Sciences, Gujarat University, Navrangpura, Ahmedabad-380009, Gujarat, India
| | - Dushyantsingh Rajpurohit
- Department of Chemistry, School of Sciences, Gujarat University, Navrangpura, Ahmedabad-380009, Gujarat, India.
| | - Divya Mishra
- Department of Chemistry, School of Sciences, Gujarat University, Navrangpura, Ahmedabad-380009, Gujarat, India.
| | - Pranav S Shrivastav
- Department of Chemistry, School of Sciences, Gujarat University, Navrangpura, Ahmedabad-380009, Gujarat, India.
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10
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Bunchuay T, Khianjinda T, Srisawat P, Tse YC, Gateley C, Beer PD. Enhanced anion recognition by ammonium [2]catenane functionalisation of a halogen bonding acyclic receptor. Chem Commun (Camb) 2023; 59:13615-13618. [PMID: 37901989 DOI: 10.1039/d3cc03269h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
Ammonium-dibenzo[24]crown-8 [2]catenane functionalisation of a 3,5-bis-iodotriazole-pyridine motif produces a potent halogen bonding (XB) receptor capable of binding anions in aqueous-acetone solvent mixtures of up to 20% water. Exploiting the kinetically inert nature of the mechanically bonded cationic ammonium [2]catenane substituents, the XB receptor is demonstrated to exhibit superior anion recognition behaviour in comparison to labile sodium cation complexed bis-benzo[15]crown-5 XB and HB triazole-pyridine heteroditopic receptor analogues.
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Affiliation(s)
- Thanthapatra Bunchuay
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, UK.
- Department of Chemistry and Center for Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
| | - Theerapat Khianjinda
- Department of Chemistry and Center for Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
| | - Pasit Srisawat
- Department of Chemistry and Center for Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
| | - Yuen Cheong Tse
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, UK.
| | - Christian Gateley
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, UK.
| | - Paul D Beer
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, UK.
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11
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Arun A, Docker A, Min Tay H, Beer PD. Squaramide-Based Heteroditopic [2]Rotaxanes for Sodium Halide Ion-Pair Recognition. Chemistry 2023; 29:e202301446. [PMID: 37300836 PMCID: PMC10946609 DOI: 10.1002/chem.202301446] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/07/2023] [Accepted: 06/09/2023] [Indexed: 06/12/2023]
Abstract
A series of squaramide-based heteroditopic [2]rotaxanes consisting of isophthalamide macrocycle and squaramide axle components are synthesized using an alkali metal cation template-directed stoppering methodology. This work highlights the unprecedented sodium cation template coordination of the Lewis basic squaramide carbonyls for interlocked structure synthesis. Extensive quantitative 1 H NMR spectroscopic anion and ion-pair recognition studies reveal the [2]rotaxane hosts are capable of cooperative sodium halide ion-pair mechanical bond axle-macrocycle component recognition, eliciting up to 20-fold enhancements in binding strengths for bromide and iodide, wherein the Lewis basic carbonyls and Lewis acidic NH hydrogen bond donors of the squaramide axle motif operate as cation and anion receptive sites simultaneously in an ambidentate fashion. Notably, varying the length and nature of the polyether cation binding unit of the macrocycle component dramatically influences the ion-pair binding affinities of the [2]rotaxanes, even overcoming direct contact NaCl ion-pair binding modes in polar organic solvents. Furthermore, the cooperative ion-pair binding properties of the squaramide-based heteroditopic [2]rotaxanes are exploited to successfully extract solid sodium halide salts into organic media.
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Affiliation(s)
- Arya Arun
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOX1 3TAOxfordUK
| | - Andrew Docker
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOX1 3TAOxfordUK
| | - Hui Min Tay
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOX1 3TAOxfordUK
| | - Paul D. Beer
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOX1 3TAOxfordUK
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12
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Lavendomme R, Moerkerke S, Mariaule G, Jabin I. Selective binding of oxalate by a tris-ureido calix[6]tube in a protic environment. Org Biomol Chem 2023; 21:6730-6737. [PMID: 37547927 DOI: 10.1039/d3ob00947e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
Due to their significant role in industry and biological systems, the interest in selectively recognizing and detecting small dicarboxylates has grown in recent years. In this study, we report on the binding properties of a family of tubular-shaped heterotritopic receptors based on bis-calix[6]arenes, which contain three (thio)urea bridges (C3U and C3TU) or six urea bridges (C6U), toward dicarboxylates. While poor binding properties were observed by NMR for the newly synthesized C6U, receptors C3U and C3TU exhibited a unique ability to cooperatively complex a dicarboxylate anion sandwiched between two ammonium ions. The three ions are complexed in contact and aligned within the tubular shape of the receptor, forming cascade complexes that are stable even in a competitive environment. The different binding properties between the receptors were rationalized in terms of size, flexibility, H-bond donor ability, and intramolecular H-bonding within the anion binding pocket between the calixarene cavities. With C3U, a rare selectivity for oxalate over other small dicarboxylates and various bicharged anions was observed. Molecular modeling of the cascade complex indicated that the oxalate anion is stabilized by an array of hydrogen bonds with the urea bridges of the receptor and both propylammonium cations nested within the calixarene cavities.
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Affiliation(s)
- Roy Lavendomme
- Université libre de Bruxelles (ULB), Laboratoire de Chimie Organique, Avenue F.D. Roosevelt 50, CP160/06, B-1050 Brussels, Belgium.
| | - Steven Moerkerke
- Université libre de Bruxelles (ULB), Laboratoire de Chimie Organique, Avenue F.D. Roosevelt 50, CP160/06, B-1050 Brussels, Belgium.
| | - Gaëlle Mariaule
- Université libre de Bruxelles (ULB), Laboratoire de Chimie Organique, Avenue F.D. Roosevelt 50, CP160/06, B-1050 Brussels, Belgium.
| | - Ivan Jabin
- Université libre de Bruxelles (ULB), Laboratoire de Chimie Organique, Avenue F.D. Roosevelt 50, CP160/06, B-1050 Brussels, Belgium.
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13
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Zaleskaya-Hernik M, Dobrzycki Ł, Romański J. Interaction of Ions in Organic and Aqueous Media with an Ion-Pair Sensor Equipped with a BODIPY Reporter: An ON1-OFF-ON2-ON3 Fluorescent Assay. Int J Mol Sci 2023; 24:8536. [PMID: 37239885 PMCID: PMC10218023 DOI: 10.3390/ijms24108536] [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: 04/12/2023] [Revised: 04/29/2023] [Accepted: 05/04/2023] [Indexed: 05/28/2023] Open
Abstract
Here, we present a ditopic ion-pair sensor, B1, containing the BODIPY reporter unit in its structure, which is shown to be able-thanks to the presence of two heterogeneous binding domains-to interact with anions in an enhanced manner in the presence of cations. This enables it to interact with salts even in 99% aqueous solutions, making B1 a good candidate in terms of visual salt detection in the aquatic environment. Receptor B1's ability to extract and release salt was applied in the transport of potassium chloride through a bulk liquid membrane. Working with a concentration of B1 in the organic phase and with the presence of a specific salt in an aqueous solution, an inverted transport experiment was also demonstrated. By varying the type and the amount of the anions added to B1, we were able to develop diverse optical responses, including a unique four-step ON1-OFF-ON2-ON3 output.
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Affiliation(s)
| | | | - Jan Romański
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
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14
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Dhara A, Fadler RE, Chen Y, Köttner LA, Van Craen D, Carta V, Flood AH. Orthogonal, modular anion-cation and cation-anion self-assembly using pre-programmed anion binding sites. Chem Sci 2023; 14:2585-2595. [PMID: 36908961 PMCID: PMC9993851 DOI: 10.1039/d2sc05121d] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 01/20/2023] [Indexed: 02/05/2023] Open
Abstract
Subcomponent self-assembly relies on cation coordination whereas the roles of anions often only emerge during the assembly process. When sites for anions are instead pre-programmed, they have the potential to be used as orthogonal elements to build up structure in a predictable and modular way. We explore this idea by combining cation (M+) and anion (X-) binding sites together and show the orthogonal and modular build up of structure in a multi-ion assembly. Cation binding is based on a ligand (L) made by subcomponent metal-imine chemistry (M+ = Cu+, Au+) while the site for anion binding (X- = BF4 -, ClO4 -) derives from the inner cavity of cyanostar (CS) macrocycles. The two sites are connected by imine condensation between a pyridyl-aldehyde and an aniline-modified cyanostar. The target assembly [LM-CS-X-CS-ML],+ generates two terminal metal complexation sites (LM and ML) with one central anion-bridging site (X) defined by cyanostar dimerization. We showcase modular assembly by isolating intermediates when the primary structure-directing ions are paired with weakly coordinating counter ions. Cation-directed (Cu+) or anion-bridged (BF4 -) intermediates can be isolated along either cation-anion or anion-cation pathways. Different products can also be prepared in a modular way using Au+ and ClO4 -. This is also the first use of gold(i) in subcomponent self-assembly. Pre-programmed cation and anion binding sites combine with judicious selection of spectator ions to provide modular noncovalent syntheses of multi-component architectures.
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Affiliation(s)
- Ayan Dhara
- Department of Chemistry, Indiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA .,Department of Chemistry and Biochemistry, University of Windsor Windsor Ontario N9B 3P4 Canada
| | - Rachel E Fadler
- Department of Chemistry, Indiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA .,Wayne State University Law School, Wayne State University 471 W Palmer Ave Detroit MI 48202 USA
| | - Yusheng Chen
- Department of Chemistry, Indiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
| | - Laura A Köttner
- Department of Chemistry, Indiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA .,Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg Nikolaus-Fiebiger-Str. 10 91058 Erlangen Germany
| | - David Van Craen
- Department of Chemistry, Indiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA .,Department of Chemistry and Chemical Biology, Technische Universität Dortmund Otto-Hahn-Str. 6 44227 Dortmund Germany
| | - Veronica Carta
- Department of Chemistry, Indiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
| | - Amar H Flood
- Department of Chemistry, Indiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
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15
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David AHG, Goodwin RJ, White NG. Supramolecular chemistry of two new bis(1,2,3-triazolyl)pyridine macrocycles: metal complexation, self-assembly and anion binding. Dalton Trans 2023; 52:1902-1912. [PMID: 36722436 DOI: 10.1039/d2dt03985k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Two new macrocycles containing the bis(1,2,3-triazolyl)pyridine (btp) motif were prepared in high yields from a btp diazide precursor (1). Solution 1H NMR studies show that this diazide undergoes self-assembly with divalent transition metal ions to form ML2 complexes with pendant azide groups, apparently suitable for conversion into metal-templated catenanes; however attempts to form these catenanes were unsuccessful. Instead a new macrocycle containing two btp motifs was prepared, which forms a nanotube structure in the solid state. Reduction of the azide groups to amines followed by amide bond formation was used to convert 1 into macrocycle 8 containing btp and isophthalamide functionalities. This macrocycle binds halide and oxalate anions in acetonitrile solely through the isophthalamide motif, and binds aromatic dicarboxylates very strongly through both the isophthalamide amide donors and the btp triazole donors. The macrocycle was complexed with Pd(II) and the resulting complexes were shown to bind strongly to halide anions. The solid state structures of [Pd·8·X]BF4 (X = Cl-, Br-, I-) were investigated by X-ray crystallography, which showed that [Pd·8·Br] forms an unusual "chain of dimers" structure assembled by metal complexation, N-H⋯Br- hydrogen bonding and short Pd⋯Pd contacts.
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Affiliation(s)
- Arthur H G David
- Research School of Chemistry, Australian National University, Canberra, ACT, Australia. .,Institut des Sciences Chimiques de Rennes, Université de Rennes 1, 35042, Rennes, France
| | - Rosemary J Goodwin
- Research School of Chemistry, Australian National University, Canberra, ACT, Australia.
| | - Nicholas G White
- Research School of Chemistry, Australian National University, Canberra, ACT, Australia.
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16
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Kim S, Park IH, Ju H, Lee Y, Kim JR, Jung JH, Lee SS, Lee E. Solvent-Dependent Self-Assembly of a Pillar[5]arene-Based Poly-Pseudo-Rotaxane Linked and Threaded by Silver(I) Trifluoroacetate: A Double Role. Inorg Chem 2023; 62:2058-2064. [PMID: 36662552 DOI: 10.1021/acs.inorgchem.2c03678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
In the supramolecule area, the fabrication of a new concept called polyrotaxanes or poly-pseudo-rotaxanes remains challenging. We herein report the formation of a poly-pseudo-rotaxane in which the same salt-type guest serves both linking and threading in the resulting structure. The combination of A1/A2-thiopyridyl pillar[5]arene (L) and silver(I) trifluoroacetate in CHCl3/CH3OH afforded a one-dimensional (1D) poly-pseudo-rotaxane. In this structure, to our surprise, the AgCF3CO2 guest not only links the di-armed L ligands via an infinite -L-Ag-L-Ag- arrangement but also threads into a pillar[5]arene cavity in a dimer form, (AgCF3CO2)2. In contrast, the same reaction in CH2Cl2/CH3OH yielded a simple 1D coordination polymer because an included CH2Cl2 molecule in the pillar[5]arene cavity prevents the threading of the silver(I) trifluoroacetate guest. Comparative 1H- and 19F-NMR studies support the solvent-dependent poly-pseudo-rotaxane formation at a lower concentration of L.
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Affiliation(s)
- Seulgi Kim
- Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, South Korea
| | - In-Hyeok Park
- Graduate School of Analytical Science and Technology (GRAST), Chungnam National University, Daejeon 34134, South Korea
| | - Huiyeong Ju
- Korea Basic Science Institute (KBSI), Western Seoul Center, 150, Bugahyeon-ro, Seoul 03759, South Korea
| | - Yelim Lee
- Department of Chemistry, Gangneung-Wonju National University, Gangneung 25457, South Korea
| | - Joon Rae Kim
- Department of Chemistry, Gangneung-Wonju National University, Gangneung 25457, South Korea
| | - Jong Hwa Jung
- Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, South Korea
| | - Shim Sung Lee
- Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, South Korea
| | - Eunji Lee
- Department of Chemistry, Gangneung-Wonju National University, Gangneung 25457, South Korea
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17
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Tay HM, Tse YC, Docker A, Gateley C, Thompson AL, Kuhn H, Zhang Z, Beer PD. Halogen-Bonding Heteroditopic [2]Catenanes for Recognition of Alkali Metal/Halide Ion Pairs. Angew Chem Int Ed Engl 2023; 62:e202214785. [PMID: 36440816 PMCID: PMC10108176 DOI: 10.1002/anie.202214785] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/25/2022] [Accepted: 11/28/2022] [Indexed: 11/29/2022]
Abstract
The first examples of halogen bonding (XB) heteroditopic homo[2]catenanes were prepared by discrete Na+ template-directed assembly of oligo(ethylene glycol) units derived from XB donor-containing macrocycles and acyclic bis-azide precursors, followed by a CuI -mediated azide-alkyne cycloaddition macrocyclisation reaction. Extensive 1 H NMR spectroscopic studies show the [2]catenane hosts exhibit positive cooperative ion-pair recognition behaviour, wherein XB-mediated halide recognition is enhanced by alkali metal cation pre-complexation. Notably, subtle changes in the catenanes' oligo(ethylene glycol) chain length dramatically alters their ion-binding affinity, stoichiometry, complexation mode, and conformational dynamics. Solution-phase and single-crystal X-ray diffraction studies provide evidence for competing host-separated and direct-contact ion-pair binding modes. We further demonstrate the [2]catenanes are capable of extracting solid alkali-metal halide salts into organic media.
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Affiliation(s)
- Hui Min Tay
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TAUK
| | - Yuen Cheong Tse
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TAUK
- Department of ChemistryThe University of Hong KongPokfulam RoadHong KongP. R. China
| | - Andrew Docker
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TAUK
| | - Christian Gateley
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TAUK
| | - Amber L. Thompson
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TAUK
| | - Heike Kuhn
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TAUK
| | - Zongyao Zhang
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TAUK
| | - Paul D. Beer
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TAUK
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18
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de Las Nieves Piña M, Mooibroek TJ, Frontera A, Bauzá A. Importance of Cu and Ag regium-π bonds in supramolecular chemistry and biology: a combined crystallographic and ab initio study. Phys Chem Chem Phys 2022; 24:24983-24991. [PMID: 36214369 DOI: 10.1039/d2cp03874a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Identifying and characterizing new binding events between electron donor and acceptor counterparts represents a crucial step to complete the molecular recognition and aggregation picture, which is key to chemistry and biology. In this study we interrogated both the PDB (Protein Data Bank) and CSD (Cambridge Structural Database) for the presence of Cu and Ag regium-π (Rg-π) bonds (an attractive noncovalent force between elements from group 11 and π-systems). Concretely, we found evidence of the plausible biological role of the interaction in protein-DNA systems, bacterial Ag extrusion processes and Heme group redox functionality. Furthermore, we also highlighted the implications of Rg-π bonds in the crystal packing of two host-guest systems, where this interaction is key for the binding and recognition of small organic molecules as well as for the encapsulation of organometallic complexes. Theoretical models were used to analyse the strength of the interaction (RI-MP2/def2-TZVP level of theory) together with QTAIM (Quantum Theory of Atoms in Molecules), NBO (Natural Bonding Orbital) and NCIplot (Non Covalent Interactions plot) analyses, which further assisted in the characterization of the regium-π interactions described herein. We expect the results from this study will be useful to attract the attention of chemical biologists as well as to expand the potential of the interaction to the supramolecular chemistry and crystal engineering communities.
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Affiliation(s)
- María de Las Nieves Piña
- Department of Chemistry, Universitat de les Illes Balears, Ctra de Valldemossa km 7.5, 07122 Palma de Mallorca (Baleares), Spain.
| | - Tiddo J Mooibroek
- Van't Hoff Institute for Molecular Sciences, University of Amsterdam Science Park A, 904, E1.26, 1098 XH Amsterdam, The Netherlands.
| | - Antonio Frontera
- Department of Chemistry, Universitat de les Illes Balears, Ctra de Valldemossa km 7.5, 07122 Palma de Mallorca (Baleares), Spain.
| | - Antonio Bauzá
- Department of Chemistry, Universitat de les Illes Balears, Ctra de Valldemossa km 7.5, 07122 Palma de Mallorca (Baleares), Spain.
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19
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Oh JH, Hay BP, Lynch VM, Li H, Sessler JL, Kim SK. Calix[4]pyrrole-Based Molecular Capsule: Dihydrogen Phosphate-Promoted 1:2 Fluoride Anion Complexation. J Am Chem Soc 2022; 144:16996-17009. [PMID: 36074582 DOI: 10.1021/jacs.2c06284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A molecular capsule (1) consisting of two calix[4]pyrroles connected via ethylene diamide linkers has been prepared as an anion receptor. 1H NMR spectroscopic studies carried out in CD2Cl2 revealed that receptor 1 recognizes a variety of anions with different binding modes and stoichiometries. For instance, receptor 1 binds fluoride and acetate with 1:2 receptor/anion stoichiometry and other test anions with 1:1 stoichiometry in solution when their respective tetrabutylammonium (TBA+) salts were used. In contrast, with tetraethylammnium (TEA+) salts, receptor 1 forms 1:2 complexes with chloride and bromide in addition to fluoride, overcoming expected Columbic repulsions between the anions co-bound in close proximity. Receptor 1 is also able to bind oxoanions, such as oxalate (C2O42-), dihydrogen phosphate (H2PO4-), sulfate (SO42-), and hydrogen pyrophosphate (HP2O73-), in the form of 1:1 complexes as the result of presumed cooperation between the two calix[4]pyrrole subunits. The selectivity of receptor 1 for fluoride versus dihydrogen phosphate varies depending on their relative concentrations. For instance, in the presence of less than 1.0 equiv of an equimolar mixture of fluoride and dihydrogen phosphate, receptor 1 shows high selectivity for dihydrogen phosphate. In contrast, in the presence of ≥2.0 anion equiv, receptor 1 binds fluoride preferentially, forming a 1:2 complex. Moreover, when treated with F-, the preformed 1:1 H2PO4- complex of receptor 1 is converted to the corresponding 1:2 receptor/fluoride complex with the release of the prebound dihydrogen phosphate anion. As inferred from gas-phase computations, this seemingly counterintuitive behavior is rationalized in terms of the precomplexed dihydrogen phosphate serving to reduce the reorganization energy required to bind two fluoride anions. The presence of a water molecule in addition to the bound fluoride anions may also favor the formation of the 1:2 F- complex. The present study provides a new approach for fine-tuning the binding selectivity of polytopic anion receptors.
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Affiliation(s)
- Ju Hyun Oh
- Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju-si, Gyeongsangnam-do 52828, Korea
| | - Benjamin P Hay
- Supramolecular Design Institute, Oak Ridge, Tennessee 37830, United States
| | - Vincent M Lynch
- Department of Chemistry, The University of Texas at Austin, 105 E. 24th, Street-Stop A5300, Austin, Texas 78712-1224, United States
| | - Hao Li
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Jonathan L Sessler
- Department of Chemistry, The University of Texas at Austin, 105 E. 24th, Street-Stop A5300, Austin, Texas 78712-1224, United States
| | - Sung Kuk Kim
- Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju-si, Gyeongsangnam-do 52828, Korea
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20
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Zaleskaya-Hernik M, Megiel E, Romański J. Utilizing a polymer containing squaramide-based ion pair receptors for salt extraction. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Tris(pyridin‐2‐ylmethyl)amine‐Based Ion Pair Receptors for Selective Lithium Salt Recognition. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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22
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Hollstein S, Shyshov O, Hanževački M, Zhao J, Rudolf T, Jäger CM, von Delius M. Dynamic Covalent Self-Assembly of Chloride- and Ion-Pair-Templated Cryptates. Angew Chem Int Ed Engl 2022; 61:e202201831. [PMID: 35384202 PMCID: PMC9400851 DOI: 10.1002/anie.202201831] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Indexed: 12/17/2022]
Abstract
While supramolecular hosts capable of binding and transporting anions and ion pairs are now widely available, self-assembled architectures are still rare, even though they offer an inherent mechanism for the release of the guest ion(s). In this work, we report the dynamic covalent self-assembly of tripodal, urea-based anion cryptates that are held together by two orthoester bridgeheads. These hosts exhibit affinity for anions such as Cl- , Br- or I- in the moderate range that is typically advantageous for applications in membrane transport. In unprecedented experiments, we were able to dissociate the Cs⋅Cl ion pair by simultaneously assembling suitably sized orthoester hosts around the Cs+ and the Cl- ion.
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Affiliation(s)
- Selina Hollstein
- Institute of Organic ChemistryUlm UniversityAlbert-Einstein-Allee 1189081UlmGermany
| | - Oleksandr Shyshov
- Institute of Organic ChemistryUlm UniversityAlbert-Einstein-Allee 1189081UlmGermany
| | - Marko Hanževački
- Department of Chemical and Environmental EngineeringUniversity of Nottingham University ParkNottinghamNG7 2RDUK
| | - Jie Zhao
- Institute of Organic ChemistryUlm UniversityAlbert-Einstein-Allee 1189081UlmGermany
| | - Tamara Rudolf
- Institute of Organic ChemistryUlm UniversityAlbert-Einstein-Allee 1189081UlmGermany
| | - Christof M. Jäger
- Department of Chemical and Environmental EngineeringUniversity of Nottingham University ParkNottinghamNG7 2RDUK
| | - Max von Delius
- Institute of Organic ChemistryUlm UniversityAlbert-Einstein-Allee 1189081UlmGermany
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23
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Hollstein S, Shyshov O, Hanževački M, Zhao J, Rudolf T, Jäger CM, Delius M. Dynamisch kovalente Selbstassemblierung von Chlorid‐ und Ionenpaar‐templierten Kryptaten. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201831] [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)
- Selina Hollstein
- Institut für Organische Chemie Universität Ulm Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Oleksandr Shyshov
- Institut für Organische Chemie Universität Ulm Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Marko Hanževački
- Department of Chemical and Environmental Engineering University of Nottingham University Park Nottingham NG7 2RD Großbritannien
| | - Jie Zhao
- Institut für Organische Chemie Universität Ulm Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Tamara Rudolf
- Institut für Organische Chemie Universität Ulm Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Christof M. Jäger
- Department of Chemical and Environmental Engineering University of Nottingham University Park Nottingham NG7 2RD Großbritannien
| | - Max Delius
- Institut für Organische Chemie Universität Ulm Albert-Einstein-Allee 11 89081 Ulm Deutschland
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24
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Fu J, Zhang L, Wang SL, Yuan WL, Zhang GH, Zhu QH, Chen H, He L, Tao GH. Ultralow-cost portable device for cesium detection via perovskite fluorescence. JOURNAL OF HAZARDOUS MATERIALS 2022; 425:127981. [PMID: 34883380 DOI: 10.1016/j.jhazmat.2021.127981] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 11/21/2021] [Accepted: 12/01/2021] [Indexed: 06/13/2023]
Abstract
Public anxiety and concern from cesium pollution in oceans have been back on the agenda since tons of nuclear waste water were announced to be poured into oceans. Cesium ion can easily enter organisms and bioaccumulate in animals and plants, thus its harm is chronic to humans through food chains. Here we showed a kind of hybrid ionic liquid membrane (HILM) for detection of cesium ion in seawater through CsPbBr3 perovskite fluorescence. With sustainability in mind, HILM was built frugally. The lowest cost of HILM is below 3 cents per piece. The HILM can detect cesium ion quickly with eye-readable fluorescence signal. Ultracheap, portable, easy-to-use on-site detection device could offer benefit for personal security and applications in environment science and ecology in the future decades.
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Affiliation(s)
- Jie Fu
- College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Lei Zhang
- College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Shuang-Long Wang
- College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Wen-Li Yuan
- College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Guo-Hao Zhang
- College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Qiu-Hong Zhu
- College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Hao Chen
- College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Ling He
- College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Guo-Hong Tao
- College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China.
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25
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De Leener G, over D, Reinaud O, Jabin I. Turning on anion and betaine hosting by a small structural change of a biomimetic cavity: a case study. Supramol Chem 2022. [DOI: 10.1080/10610278.2021.2011890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Gaël De Leener
- Laboratoire de Chimie Organique, Université Libre de Bruxelles (ULB), Brussels, Belgium
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques, Universite de Paris, Paris, France
| | - Diana over
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques, Universite de Paris, Paris, France
| | - Olivia Reinaud
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques, Universite de Paris, Paris, France
| | - Ivan Jabin
- Laboratoire de Chimie Organique, Université Libre de Bruxelles (ULB), Brussels, Belgium
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26
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Zhang J, Wenzel M, Steup J, Schaper G, Hennersdorf F, Du H, Zheng S, Lindoy LF, Weigand JJ. 4-Phosphoryl Pyrazolones for Highly Selective Lithium Separation from Alkali Metal Ions. Chemistry 2022; 28:e202103640. [PMID: 34652866 PMCID: PMC9298229 DOI: 10.1002/chem.202103640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Indexed: 11/10/2022]
Abstract
Effective receptors for the separation of Li+ from a mixture with other alkali metal ions under mild conditions remains an important challenge that could benefit from new approaches. In this study, it is demonstrated that the 4-phosphoryl pyrazolones, HL2 -HL4 , in the presence of the typical industrial organophosphorus co-ligands tributylphosphine oxide (TBPO), tributylphosphate (TBP) and trioctylphosphine oxide (TOPO), are able to selectively recognise and extract lithium ions from aqueous solution. Structural investigations in solution as well as in the solid state reveal the existence of a series of multinuclear Li+ complexes that include dimers (TBPO, TBP) as well as rarely observed trimers (TOPO) and represent the first clear evidence for the synergistic role of the co-ligands in the extraction process. Our findings are supported by detailed NMR, MS and extraction studies. Liquid-liquid extraction in the presence of TOPO revealed an unprecedented high Li+ extraction efficiency (78 %) for HL4 compared to the use of the industrially employed acylpyrazolone HL1 (15 %) and benzoyl-1,1,1-trifluoroacetone (52 %) extractants. In addition, a high selectivity for Li+ over Na+ , K+ and Cs+ under mild conditions (pH ∼8.2) confirms that HL2 -HL4 represent a new class of ligands that are very effective extractants for use in lithium separation.
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Affiliation(s)
- Jianfeng Zhang
- Faculty of Chemistry and Food ChemistryTechnische Universität Dresden01062DresdenGermany
| | - Marco Wenzel
- Faculty of Chemistry and Food ChemistryTechnische Universität Dresden01062DresdenGermany
| | - Johannes Steup
- Faculty of Chemistry and Food ChemistryTechnische Universität Dresden01062DresdenGermany
| | - Gerrit Schaper
- Faculty of Chemistry and Food ChemistryTechnische Universität Dresden01062DresdenGermany
| | - Felix Hennersdorf
- Faculty of Chemistry and Food ChemistryTechnische Universität Dresden01062DresdenGermany
| | - Hao Du
- National Engineering Laboratory for Hydrometallurgical Cleaner Production TechnologyKey Laboratory of Green Process and EngineeringInstitute of Process EngineeringChinese Academy of SciencesBeijing100190China
| | - Shili Zheng
- National Engineering Laboratory for Hydrometallurgical Cleaner Production TechnologyKey Laboratory of Green Process and EngineeringInstitute of Process EngineeringChinese Academy of SciencesBeijing100190China
| | | | - Jan J. Weigand
- Faculty of Chemistry and Food ChemistryTechnische Universität Dresden01062DresdenGermany
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27
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Tailoring hydrophobic deep eutectic solvent for selective lithium recovery from dilute aqueous solutions. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.119928] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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28
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Kim SH, Yeon Y, Lee A, Lynch VM, He Q, Sessler JL, Kim SK. Tetraamidoindolyl calix[4]arene as a selective ion pair receptor for LiCl. Org Chem Front 2022. [DOI: 10.1039/d2qo01519f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A calix[4]arene (1) functionalized with amidoindole groups on the upper rim and with propyl groups on the lower rim extracts LiCl and LiBr selectively.
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Affiliation(s)
- Seung Hyeon Kim
- Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju, 52828, Korea
| | - Yerim Yeon
- Department of Chemistry, The University of Texas at Austin, 105 E. 24th Street-Stop A5300, Austin, Texas 78712-1224, USA
| | - Areum Lee
- Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju, 52828, Korea
| | - Vincent M. Lynch
- Department of Chemistry, The University of Texas at Austin, 105 E. 24th Street-Stop A5300, Austin, Texas 78712-1224, USA
| | - Qing He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Jonathan L. Sessler
- Department of Chemistry, The University of Texas at Austin, 105 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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29
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Docker A, Stevens JG, Beer PD. Halogen Bonding Heteroditopic Materials for Cooperative Sodium Iodide Binding and Extraction. Chemistry 2021; 27:14600-14604. [PMID: 34520586 PMCID: PMC8596695 DOI: 10.1002/chem.202102952] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Indexed: 01/05/2023]
Abstract
A series of novel heteroditopic halogen bonding (XB) receptor functionalised silica based materials, containing mono- and bis-iodotriazole benzo-15-crown-5 groups are investigated for the cooperative binding and extraction of sodium halide ion-pair species from aqueous solution. Characterisation of the XB materials by CHN elemental analysis, 13 C CP/MAS NMR and ATR-FTIR spectroscopies confirms and quantifies the successful incorporation of the ion-pair receptor frameworks to the silica material. ICP-MS solid-liquid extraction studies demonstrate the bidentate XB functionalised material is capable of NaI extraction from water. Importantly, cooperative XB-mediated sodium halide ion-pair binding is determined to be crucial to the material's extraction capabilities, impressively demonstrating a two-fold enhancement in sodium iodide extraction efficiency relative to a heteroditopic hydrogen bonding receptor functionalised silica material analogue.
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Affiliation(s)
- Andrew Docker
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TA
| | | | - Paul D. Beer
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TA
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30
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Utilizing an Amino Acid Scaffold to Construct Heteroditopic Receptors Capable of Interacting with Salts under Interfacial Conditions. Int J Mol Sci 2021; 22:ijms221910754. [PMID: 34639095 PMCID: PMC8509731 DOI: 10.3390/ijms221910754] [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: 08/29/2021] [Revised: 09/28/2021] [Accepted: 09/29/2021] [Indexed: 11/17/2022] Open
Abstract
A 4-nitro-L-phenylalanine scaffold was used to construct effective ion pair receptors capable of binding anions in an enhanced manner with the assistance of alkali metal cations. A benzocrown ether was linked to a receptor platform via the amide function so as to support the squaramide function in anion binding and to allow all three NHs to act simultaneously. The binding properties of the receptors were determined using UV-vis, 1H NMR, 2D NMR, and DOSY spectroscopy in MeCN and in the solid state by X-ray measurements. Ion pair receptor 2 was found to interact with the most strongly with salts, and the removal of its key structural elements was shown to hinder the receptor action. The amide proton was recognized to switch from having involvement in an intramolecular hydrogen bond to interacting with anions upon complexation. Apart from carboxylates, which promote deprotonation, and other monovalent salts creating 1:1 complexes with the receptor, more complex equilibria were established upon the complexation of 2 with sulfates. Receptor 2 was shown to be capable of the extraction of ion pairs from the aqueous to organic phase and of the cation-enhanced transport chloride and sulfate anions across a bulk chloroform membrane. These features may open the door for its use in regulating ion concertation under interfacial conditions and acting as a potential drug to treat channelopathies.
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31
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Sanchez-Andrada P, Vidal-Vidal A, Prieto T, Elguero J, Alkorta I, Marin-Luna M. Alkylammonium Cation Affinities of Nitrogenated Organobases: The Roles of Hydrogen Bonding and Proton Transfer. Chempluschem 2021; 86:1097-1105. [PMID: 34251758 DOI: 10.1002/cplu.202100235] [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: 05/26/2021] [Revised: 06/29/2021] [Indexed: 11/06/2022]
Abstract
Alkylammonium cation affinities of 64 nitrogen-containing organobases, as well as the respective proton transfer processes from the alkylammonium cations to the base, have been computed in the gas phase by using DFT methods. The guanidine bases show the highest proton transfer values (191.9-233 kJ mol-1 ) whereas the cis-2,2'-biimidazole presents the largest affinity towards the alkylammonium cations (>200 kJ mol-1 ) values. The resulting data have been compared with the experimentally reported proton affinities of the studied nitrogen-containing organobases revealing that the propensity of an organobase for the proton transfer process increases linearly with its proton affinity. This work can provide a tool for designing senors for bioactive compounds containing amino groups that are protonated at physiological pH.
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Affiliation(s)
- Pilar Sanchez-Andrada
- Departamento de Química Orgánica Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia Facultad de Química, Campus de Espinardo, E-30100, Murcia, Spain
| | - Angel Vidal-Vidal
- Departamento de Química Orgánica, Universidade de Vigo Campus Lagoas-Marcosende, Vigo, Spain
| | - Tania Prieto
- Departamento de Química Orgánica, Universidade de Vigo Campus Lagoas-Marcosende, Vigo, Spain
| | - José Elguero
- Instituto de Química Médica, Centro Superior de Investigaciones Científicas (CSIC), Juan de la Cierva, 3, E-28006, Madrid, Spain
| | - Ibon Alkorta
- Instituto de Química Médica, Centro Superior de Investigaciones Científicas (CSIC), Juan de la Cierva, 3, E-28006, Madrid, Spain
| | - Marta Marin-Luna
- Departamento de Química Orgánica Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia Facultad de Química, Campus de Espinardo, E-30100, Murcia, Spain
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32
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Jiang W, Cui WR, Liang RP, Qiu JD. Difunctional covalent organic framework hybrid material for synergistic adsorption and selective removal of fluoroquinolone antibiotics. JOURNAL OF HAZARDOUS MATERIALS 2021; 413:125302. [PMID: 33609869 DOI: 10.1016/j.jhazmat.2021.125302] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 01/02/2021] [Accepted: 01/31/2021] [Indexed: 06/12/2023]
Abstract
Due to the low efficiency of traditional sewage treatment methods, the effective removal of zwitterionic fluoroquinolone (FQs) antibiotics is of vital significant for environment protection. In this work, a SO3H-anchored covalent organic framework (TpPa-SO3H) was deliberately designed by linking phenolic trialdehyde with triamine through Schiff reaction, then low-content Tb3+ ions were loaded onto covalent organic framework according to wet-chemistry immersion dispersion method which benefitting for efficient FQs antibiotics uptaking. Tb@TpPa-SO3H functionalized with regularly distributed sulfonic acid groups and terbium ions which could provide difunctional binding sites. Tb3+ sites could capture carboxylic acid group of FQs molecules according to the complexes coordination effect and sulfonic acid sites play a significant role in the adsorption of FQs molecules through electrostatic interaction with amine group. Tb@TpPa-SO3H with dual complementary function sites exhibited ultra-fast adsorption kinetics (< 2 min, average over 99% removing rate) and high adsorption capacities of 989, 956, and 998 mg g-1 for Norfloxacin (NOR), ciprofloxacin (CIP), enrofloxacin (ENR), respectively. Furthermore, Tb@TpPa-SO3H showed excellent selectivity for the adsorption of FQs in tanglesome system. This work not only explored synergistic adsorption in ion-functionalized 2D covalent organic framework with dual binding sites, but also delineated a promising strategy for the elimination of organic pollutants in environmental remediation.
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Affiliation(s)
- Wei Jiang
- College of Chemistry, Nanchang University, Nanchang 330031, China; Nanchang Institute for Food and Drug Control, Nanchang 330038, China
| | - Wei-Rong Cui
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Ru-Ping Liang
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Jian-Ding Qiu
- College of Chemistry, Nanchang University, Nanchang 330031, China; College of Materials and Chemical Engineering, Pingxiang University, Pingxiang 337055, China.
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33
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Valle-Sánchez M, Contreras-Celedón CA, Ochoa-Terán A, Chacón-García L. Cooperative Recognition of Ni 2+ Triggered by Fluoride Ions in Naturally Occurring α-Hydroxyquinone Derivatives. ACS OMEGA 2021; 6:16419-16427. [PMID: 34235313 PMCID: PMC8246452 DOI: 10.1021/acsomega.1c01420] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 06/08/2021] [Indexed: 06/13/2023]
Abstract
Perezone is a naturally occurring hydroxyquinone that has been deeply studied from different chemical aspects, such as therapeutics, electrochemistry, physical-chemical properties, or synthetic approaches that turn it an attractive template for new semisynthetic derivatives with a wide range of purposes. Herein, we describe a facile synthetic pathway to obtain new perezone derivatives by the addition of a pyrrole moiety that can be used for ion recognition. Compounds 2-4 showed the capability to interact with several anions and M2+ cations as separate events that result in colorimetric changes. Moreover, the compounds can behave as heteroditopic receptors. Besides, a previous interaction between fluoride ions and perezone derivatives triggered a successful recognition of M2+ ions, remarking Ni2+ as the most interesting phenomenon. These results project the compounds as potential colorimetric receptors for nickel ions in complex solutions.
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Affiliation(s)
- Mario Valle-Sánchez
- Laboratorio
de Diseño Molecular, Instituto de
Investigaciones Químico-Biológicas, Edificio B-1, Ciudad Universitaria, Morelia, Michoacán 58030 Mexico
| | - Claudia A. Contreras-Celedón
- Laboratorio
de Diseño Molecular, Instituto de
Investigaciones Químico-Biológicas, Edificio B-1, Ciudad Universitaria, Morelia, Michoacán 58030 Mexico
| | - Adrián Ochoa-Terán
- Centro
de Graduados e Investigación en Química, Tecnológico Nacional de México/Instituto
Tecnológico de Tijuana, 22510 Tijuana, Baja California, Mexico
| | - Luis Chacón-García
- Laboratorio
de Diseño Molecular, Instituto de
Investigaciones Químico-Biológicas, Edificio B-1, Ciudad Universitaria, Morelia, Michoacán 58030 Mexico
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34
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Jagleniec D, Wilczek M, Romański J. Tripodal, Squaramide-Based Ion Pair Receptor for Effective Extraction of Sulfate Salt. Molecules 2021; 26:2751. [PMID: 34067071 PMCID: PMC8125518 DOI: 10.3390/molecules26092751] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 05/01/2021] [Accepted: 05/05/2021] [Indexed: 11/20/2022] Open
Abstract
Combining three features-the high affinity of squaramides toward anions, cooperation in ion pair binding and preorganization of the binding domains in the tripodal platform-led to the effective receptor 2. The lack of at least one of these key elements in the structures of reference receptors 3 and 4 caused a lower affinity towards ion pairs. Receptor 2 was found to form an intramolecular network in wet chloroform, which changed into inorganic-organic associates after contact with ions and allowed salts to be extracted from an aqueous to an organic phase. The disparity in the binding mode of 2 with sulfates and with other monovalent anions led to the selective extraction of extremely hydrated sulfate anions in the presence of more lipophilic salts, thus overcoming the Hofmeister series.
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Affiliation(s)
| | | | - Jan Romański
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland; (D.J.); (M.W.)
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35
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Docker A, Bunchuay T, Ahrens M, Martinez‐Martinez AJ, Beer PD. Chalcogen Bonding Ion‐Pair Cryptand Host Discrimination of Potassium Halide Salts. Chemistry 2021; 27:7837-7841. [DOI: 10.1002/chem.202100579] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Indexed: 11/11/2022]
Affiliation(s)
- Andrew Docker
- Department of Chemistry University of Oxford Chemistry Research Laboratory Mansfield Road Oxford OX1 3TA UK
| | - Thanthapatra Bunchuay
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC) Faculty of Science Mahidol University 272 Thanon Rama VI, Ratchathewi Bangkok 10400 Thailand
| | - Michael Ahrens
- Department of Chemistry University of Oxford Chemistry Research Laboratory Mansfield Road Oxford OX1 3TA UK
| | | | - Paul D. Beer
- Department of Chemistry University of Oxford Chemistry Research Laboratory Mansfield Road Oxford OX1 3TA UK
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36
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Wang T, Liu J, Cao X. Revealing the Dynamic Process of Ion Pair Recognition by Calix[4]pyrrole: A Case Study of Cesium Chloride. J Phys Chem Lett 2021; 12:3253-3259. [PMID: 33764069 DOI: 10.1021/acs.jpclett.1c00628] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Ion pair receptors based on meso-octamethylcalix[4]pyrrole (CP) have been extensively investigated over recent years. However, the nature of their ion pair recognition has barely been reported, even for CP itself. Herein, cesium chloride was used as a guest ion pair to investigate the dynamic process of ion pair recognition by CP, and the "capture-bind" mechanism for this process is proposed for the first time. The results reveal that Cs+ can be first captured by Cl- at long distances, and then it is bound to the cavity through almost equal contributions of Cl- and CP. Although the effective charge of Cl- is obviously reduced by charge-transfer, the electrostatic interactions between Cl- and Cs+ are still strong even at long distances in the presence of CP.
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Affiliation(s)
- Teng Wang
- School of Chemistry and Pharmaceutical Engineering, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271016, P. R. China
| | - Jingjing Liu
- School of Chemistry and Chemical Engineering, Taishan University, Taian, 271021, P. R. China
| | - Xiaoqun Cao
- School of Chemistry and Pharmaceutical Engineering, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271016, P. R. China
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37
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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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38
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McConnell AJ, Docker A, Beer PD. From Heteroditopic to Multitopic Receptors for Ion-Pair Recognition: Advances in Receptor Design and Applications. Chempluschem 2021; 85:1824-1841. [PMID: 32833334 DOI: 10.1002/cplu.202000484] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/28/2020] [Indexed: 12/30/2022]
Abstract
Ion-pair recognition has emerged from cation and anion recognition and become a diverse and active field in its own right. The last decade has seen significant advances in receptor design in terms of the types of binding motifs, understanding of cooperativity and increase in complexity from heteroditopic to multitopic receptors. As a result, attention has turned to applying this knowledge to the rational design of ion-pair receptors for applications in salt solubilisation and extraction, membrane transport and sensing. This Review highlights recent progress and developments in the design and applications of heteroditopic and multitopic receptors for ion-pair recognition.
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Affiliation(s)
- Anna J McConnell
- Otto Diels Institute of Organic Chemistry, Christian-Albrechts-Universität zu Kiel, Otto-Hahn-Platz 4, Kiel, 24098, Germany
| | - Andrew Docker
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, United Kingdom
| | - Paul D Beer
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, United Kingdom
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39
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Zakrzewski M, Piątek P. Heteroditopic receptor flexibility – an important design principle for effective ion pair extractants based on carboxylate studies. NEW J CHEM 2021. [DOI: 10.1039/d1nj03353k] [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
Potassium carboxylate salt binding and extraction experiments of a heteroditopic receptor series reveal that conformational freedom is an important factor affecting salt extraction efficiency.
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Affiliation(s)
- Maciej Zakrzewski
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Piotr Piątek
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
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40
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Li M, Hua B, Huang F. Pillar[5]arene-based ion-pair recognition for constructing a [2]pseudorotaxane with supramolecular interaction induced LCST behavior. Org Chem Front 2021. [DOI: 10.1039/d1qo00457c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Here, we report a novel [2]pseudorotaxane based on perbromoethylated pillar[5]arene/imidazolium iodide ionic liquid ion-pair recognition and this pseudorotaxane shows supramolecular interaction induced LCST behavior in solution.
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Affiliation(s)
- Ming Li
- State Key Laboratory of Chemical Engineering
- Key Laboratory of Excited-State Materials of Zhejiang Province
- Stoddart Institute of Molecular Science
- Department of Chemistry
- Zhejiang University
| | - Bin Hua
- State Key Laboratory of Chemical Engineering
- Key Laboratory of Excited-State Materials of Zhejiang Province
- Stoddart Institute of Molecular Science
- Department of Chemistry
- Zhejiang University
| | - Feihe Huang
- State Key Laboratory of Chemical Engineering
- Key Laboratory of Excited-State Materials of Zhejiang Province
- Stoddart Institute of Molecular Science
- Department of Chemistry
- Zhejiang University
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41
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Knighton RC, Beer PD. Sodium cation-templated synthesis of an ion-pair binding heteroditopic [2]catenane. Org Chem Front 2021. [DOI: 10.1039/d1qo00247c] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A novel method utilising sodium cation templation between a pyridinium bridged calix[4]diquinone macrocycle and a pyridine-N-oxide functionalised macrocycle precursor motif is used for the construction of a mechanically interlocked ion-pair.
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Affiliation(s)
- Richard C. Knighton
- Chemistry Research Laboratory
- Department of Chemistry
- University of Oxford
- Oxford
- UK
| | - Paul D. Beer
- Chemistry Research Laboratory
- Department of Chemistry
- University of Oxford
- Oxford
- UK
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42
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Highly Efficient, Tripodal Ion-Pair Receptors for Switching Selectivity between Acetates and Sulfates Using Solid-Liquid and Liquid-Liquid Extractions. Int J Mol Sci 2020; 21:ijms21249465. [PMID: 33322738 PMCID: PMC7764408 DOI: 10.3390/ijms21249465] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 12/07/2020] [Accepted: 12/09/2020] [Indexed: 11/18/2022] Open
Abstract
A tripodal, squaramide-based ion-pair receptor 1 was synthesized in a modular fashion, and 1H NMR and UV-vis studies revealed its ability to interact more efficiently with anions with the assistance of cations. The reference tripodal anion receptor 2, lacking a crown ether unit, was found to lose the enhancement in anion binding induced by presence of cations. Besides the ability to bind anions in enhanced manner by the “single armed” ion-pair receptor 3, the lack of multiple and prearranged binding sites resulted in its much lower affinity towards anions than in the case of tripodal receptors. Unlike with receptors 2 or 3, the high affinity of 1 towards salts opens up the possibility of extracting extremely hydrophilic sulfate anions from aqueous to organic phase. The disparity in receptor 1 binding modes towards monovalent anions and divalent sulfates assures its selectivity towards sulfates over other lipophilic salts upon liquid–liquid extraction (LLE) and enables the Hofmeister bias to be overcome. By changing the extraction conditions from LLE to SLE (solid–liquid extraction), a switch of selectivity from sulfates to acetates was achieved. X-ray measurements support the ability of anion binding by cooperation of the arms of receptor 1 together with simultaneous binding of cations.
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43
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Thevenet A, Custelcean R, Moyer BA, Jansone‐Popova S. Synergistic Self‐Assembly of Oxoanions and d‐Block Metal Ions with Heteroditopic Receptors into Triple‐Stranded Helicates. Chemistry 2020; 26:14290-14294. [DOI: 10.1002/chem.202003100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/12/2020] [Indexed: 11/10/2022]
Affiliation(s)
- Alexiane Thevenet
- Chemical Sciences Division Oak Ridge National Laboratory Oak Ridge Tennessee 37831 USA
- Present address: CEA Centre de Marcoule D765 30200 Chusclan France
| | - Radu Custelcean
- Chemical Sciences Division Oak Ridge National Laboratory Oak Ridge Tennessee 37831 USA
| | - Bruce A. Moyer
- Chemical Sciences Division Oak Ridge National Laboratory Oak Ridge Tennessee 37831 USA
| | - Santa Jansone‐Popova
- Chemical Sciences Division Oak Ridge National Laboratory Oak Ridge Tennessee 37831 USA
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44
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Chahal MK, Payne DT, Labuta J, Karr PA, D'Souza F, Ariga K, Hill JP. Selective Phase Transfer Reagents (OxP-crowns) for Chromogenic Detection of Nitrates Especially Ammonium Nitrate. Chemistry 2020; 26:13177-13183. [PMID: 32671876 DOI: 10.1002/chem.202003166] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 07/14/2020] [Indexed: 11/09/2022]
Abstract
Nitrogen and phosphorus-containing ions such as ammonium, nitrates and phosphates are anthropogenic pollutants while ammonium nitrate may be diverted for nefarious purposes in improvised explosive devices. Crown ether-oxoporphyrinogen conjugates (OxP-crowns) are used to selectively detect nitrates, especially their ion pairs with K+ and NH4 + , based on ion pair complexation of OxP-crowns under phase transfer conditions. The presence of phosphate and carbonate lead to deprotonation of OxP-crowns. OxP-1N18C6 is capable of extracting ion pairs with nitrate from aqueous phase leading to a selective chromogenic response. Deprotonation of the OxP moiety leads to [OxP- ]-1N18C6[K+ ] and is promoted by crown ether selective cation binding coupled with hydration of basic oxoanions, which are constrained to remain in the aqueous phase. This work illustrates the utility of molecular design to exploit partitioning and ion hydration effects establishing the selectivity of the chromogenic response.
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Affiliation(s)
- Mandeep K Chahal
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki, 305-0044, Japan
| | - Daniel T Payne
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki, 305-0044, Japan
| | - Jan Labuta
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki, 305-0044, Japan
| | - Paul A Karr
- Department of Physical Sciences and Mathematics, Wayne State College, 111 Main Street, Wayne, Nebraska, 68787, USA
| | - Francis D'Souza
- Department of Chemistry, University of North Texas, 1155 Union Circle, 305070, Denton, Texas, 76203, USA
| | - Katsuhiko Ariga
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki, 305-0044, Japan.,Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8561, Japan
| | - Jonathan P Hill
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki, 305-0044, Japan
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Dihomooxacalix[4]arene-Based Fluorescent Receptors for Anion and Organic Ion Pair Recognition. Molecules 2020; 25:molecules25204708. [PMID: 33066580 PMCID: PMC7587342 DOI: 10.3390/molecules25204708] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/01/2020] [Accepted: 10/08/2020] [Indexed: 01/08/2023] Open
Abstract
Fluorescent dihomooxacalix[4]arene-based receptors 5a-5c, bearing two naphthyl(thio)ureido groups at the lower rim via a butyl spacer, were synthesised and obtained in the cone conformation in solution. The X-ray crystal structures of 1,3- (5a) and 3,4-dinaphthylurea (5b) derivatives are reported. Their binding properties towards several anions of different geometries were assessed by 1H-NMR, UV-Vis absorption and fluorescence titrations. Structural and energetic insights of the naphthylurea 5a and 5b complexes were also obtained using quantum mechanical calculations. The data showed that all receptors follow the same trend, the association constants increase with the anion basicity, and the strongest complexes were obtained with F-, followed by the oxoanions AcO- and BzO-. Proximal urea 5b is a better anion receptor compared to distal urea 5a, and both are more efficient than thiourea 5c. Compounds 5a and 5b were also investigated as heteroditopic receptors for biologically relevant alkylammonium salts, such as the neurotransmitter γ-aminobutyric acid (GABA·HCl) and the betaine deoxycarnitine·HCl. Chiral recognition towards the guest sec-butylamine·HCl was also tested, and a 5:2 selectivity for (R)-sec-BuNH3+·Cl- towards (P) or (M) enantiomers of the inherently chiral receptor 5a was shown. Based on DFT calculations, the complex [(S)-sec-BuNH3+·Cl-/(M)-5a] was indicated as the more stable.
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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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Shin M, Seo S, Park IH, Lee E, Habata Y, Lee SS. Metallosupramolecules of pillar[5]-bis-trithiacrown including a mercury(ii) iodide ion-triplet complex. Chem Commun (Camb) 2020; 56:10135-10138. [PMID: 32766638 DOI: 10.1039/d0cc03902k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A combination of pillar[5]-bis-trithiacrown (L) and mercury(ii) halides afforded a monomer complex (Cl--form), a 1-D coordination polymer (Br--form) and a supramolecular ion-triplet complex [(I·Hg·I)@L] (I--form). In the ion-triplet complex, the host encapsulates the (I--Hg2+-I-) entity via Hg2+π and C-HI- interactions, reflecting geometrical complementarity.
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Affiliation(s)
- Mingyeong Shin
- Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, South Korea.
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Kutus B, Zhu J, Luo J, Wang Q, Lupan A, Attia AAA, Wang D, Hunger J. Enhancement of Ion Pairing of Sr(II) and Ba(II) Salts by a Tritopic Ion-Pair Receptor in Solution. Chemphyschem 2020; 21:1957-1965. [PMID: 32643260 PMCID: PMC7540308 DOI: 10.1002/cphc.202000507] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/04/2020] [Indexed: 12/12/2022]
Abstract
Tritopic ion-pair receptors can bind bivalent salts in solution; yet, these salts have a tendency to form ion-pairs even in the absence of receptors. The extent to which such receptors can enhance ion pairing has however remained elusive. Here, we study ion pairing of M2+ (Ba2+ , Sr2+ ) and X- (I- , ClO4- ) in acetonitrile with and without a dichlorooxacalix[2]arene[2]triazine-related receptor containing a pentaethylene-glycol moiety. We find marked ion association already in receptor-free solutions. When present, most of the MX+ ion-pairs are bound to the receptor and the overall degree of ion association is enhanced due to coordinative, hydrogen-bonding, and anion-π interactions. The receptor shows higher selectivity for iodides but also stabilizes perchlorates, despite the latter are often considered as weakly coordinating anions. Our results show that ion-pair binding is strongly correlated to ion pairing in these solutions, thereby highlighting the importance of taking ion association in organic solvents into account.
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Affiliation(s)
- Bence Kutus
- Department of Molecular SpectroscopyMax Planck Institute for Polymer Research55128MainzGermany
| | - Jun Zhu
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryUniversity of Chinese Academy of SciencesChinese Academy of SciencesBeijing100190China
| | - Jian Luo
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryUniversity of Chinese Academy of SciencesChinese Academy of SciencesBeijing100190China
| | - Qi‐Qiang Wang
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryUniversity of Chinese Academy of SciencesChinese Academy of SciencesBeijing100190China
| | - Alexandru Lupan
- Faculty of Chemistry and Chemical EngineeringBabeş-Bolyai University400028Cluj-NapocaRomania
| | - Amr A. A. Attia
- Faculty of Chemistry and Chemical EngineeringBabeş-Bolyai University400028Cluj-NapocaRomania
| | - De‐Xian Wang
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryUniversity of Chinese Academy of SciencesChinese Academy of SciencesBeijing100190China
| | - Johannes Hunger
- Department of Molecular SpectroscopyMax Planck Institute for Polymer Research55128MainzGermany
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Bunchuay T, Docker A, Eiamprasert U, Surawatanawong P, Brown A, Beer PD. Chalcogen Bond Mediated Enhancement of Cooperative Ion-Pair Recognition. Angew Chem Int Ed Engl 2020; 59:12007-12012. [PMID: 32307757 PMCID: PMC7383679 DOI: 10.1002/anie.202001125] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Indexed: 12/15/2022]
Abstract
A series of heteroditopic receptors containing halogen bond (XB) and unprecedented chalcogen bond (ChB) donors integrated into a 3,5-bis-triazole pyridine structure covalently linked to benzo-15-crown-5 ether motifs exhibit remarkable cooperative recognition of halide anions. Multi-nuclear 1 H, 13 C, 125 Te and 19 F NMR, ion pair binding investigations reveal sodium cation-benzo-crown ether binding dramatically enhances the recognition of bromide and iodide halide anions, with the chalcogen bonding heteroditopic receptor notably displaying the largest enhancement of halide binding strength of over two hundred-fold, in comparison to the halogen bonding and hydrogen bonding heteroditopic receptor analogues. DFT calculations suggest crown ether sodium cation complexation induces a polarisation of the sigma hole of ChB and XB heteroditopic receptor donors as a significant contribution to the origin of the unique cooperativity exhibited by these systems.
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Affiliation(s)
- Thanthapatra Bunchuay
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TAUnited Kingdom
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of ScienceMahidol University272 Thanon Rama VI, RatchathewiBangkok10400Thailand
| | - Andrew Docker
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TAUnited Kingdom
| | - Utt Eiamprasert
- Department of ChemistryFaculty of Science and TechnologyRajamangala University of Technology ThanyaburiThanyaburi Pathum Thani12110Thailand
| | - Panida Surawatanawong
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of ScienceMahidol University272 Thanon Rama VI, RatchathewiBangkok10400Thailand
| | - Asha Brown
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TAUnited Kingdom
| | - Paul D. Beer
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TAUnited Kingdom
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Preorganization-enhanced halogen bonding via intramolecular hydrogen bonding: a theoretical study. Struct Chem 2020. [DOI: 10.1007/s11224-020-01559-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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