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Kataev EA. Converting pH probes into "turn-on" fluorescent receptors for anions. Chem Commun (Camb) 2023; 59:1717-1727. [PMID: 36722999 DOI: 10.1039/d2cc06194e] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Recognition of anions by synthetic receptors is an integral part of supramolecular chemistry continuing to expand and find new application areas in our daily life. Many applications require visualization of anion recognition events, and the generated analytical signal is used to quantify anions in solution. Transferring a binding event to a measured signal is a challenging task. The design of a synthetic receptor must involve not only the perfectly positioned binding sites with complementary noncovalent interactions for a guest but should also realize the sensing mechanism that generates a strong analytical response upon guest binding. This feature article outlines the design concept for the construction of "turn-on" fluorescent receptors for anions involving fluorescent pH probes. Applications of this concept for the construction of synthetic fluorescent receptors for inorganic anions and nucleotides are described. Features of the obtained receptors and possible competing binding and sensing processes in solution are analyzed to understand the scope and limitations of the approach.
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Affiliation(s)
- Evgeny A Kataev
- Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Nikolaus-Fiebiger-Str. 10, 91058 Erlangen, Germany.
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2
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Hu Y, Long S, Fu H, She Y, Xu Z, Yoon J. Revisiting imidazolium receptors for the recognition of anions: highlighted research during 2010-2019. Chem Soc Rev 2020; 50:589-618. [PMID: 33174897 DOI: 10.1039/d0cs00642d] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Imidazolium based receptors selectively recognize anions, and have received more and more attention. In 2006 and 2010, we reviewed the mechanism and progress of imidazolium salt recognition of anions, respectively. In the past ten years, new developments have emerged in this area, including some new imidazolium motifs and the identification of a wider variety of biological anions. In this review, we discuss the progress of imidazolium receptors for the recognition of anions in the period of 2010-2019 and highlight the trends in this area. We first classify receptors based on motifs, including some newly emerging receptors, as well as new advances in existing receptor types at this stage. Then we discuss separately according to the types of anions, including ATP, GTP, DNA and RNA.
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Affiliation(s)
- Ying Hu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China.
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3
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Pal S, Ghosh TK, Ghosh R, Mondal S, Ghosh P. Recent advances in recognition, sensing and extraction of phosphates: 2015 onwards. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2019.213128] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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4
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Oshchepkov A, Oshchepkov M, Kamagurov S, Redchuk A, Oshchepkova M, Popov K, Kataev E. Fluorescence detection of phosphonates in water by a naphthalimide-based receptor and its derived cryopolymers. NEW J CHEM 2020. [DOI: 10.1039/d0nj01734e] [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
The concentration of compound M in cryopolymers has a dramatic influence on the fluorescence response in the presence of phosphonates.
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Affiliation(s)
| | - Maxim Oshchepkov
- JSC “Fine Chemicals R&D Centre”
- 107258 Moscow
- Russian Federation
- Mendeleev University of Chemical Technology of Russia
- 125047 Moscow
| | - Semen Kamagurov
- JSC “Fine Chemicals R&D Centre”
- 107258 Moscow
- Russian Federation
| | - Anatoly Redchuk
- JSC “Fine Chemicals R&D Centre”
- 107258 Moscow
- Russian Federation
| | - Margarita Oshchepkova
- Mendeleev University of Chemical Technology of Russia
- 125047 Moscow
- Russian Federation
| | | | - Evgeny Kataev
- Department of Chemistry and Pharmacy
- University of Erlangen-Nürnberg
- 91058 Erlangen
- Germany
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5
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Yu XH, Hong XQ, Mao QC, Chen WH. Biological effects and activity optimization of small-molecule, drug-like synthetic anion transporters. Eur J Med Chem 2019; 184:111782. [DOI: 10.1016/j.ejmech.2019.111782] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 10/08/2019] [Accepted: 10/09/2019] [Indexed: 12/27/2022]
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6
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Navarro-García E, Velasco MD, Zapata F, Bauzá A, Frontera A, Ramírez de Arellano C, Caballero A. Exploiting 1,4-naphthoquinone and 3-iodo-1,4-naphthoquinone motifs as anion binding sites by hydrogen or halogen-bonding interactions. Dalton Trans 2019; 48:11813-11821. [PMID: 31304497 DOI: 10.1039/c9dt02012h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
We describe here the utilization of 1,4-naphthoquinone and 3-iodo-1,4-naphthoquinone motifs as new anion binding sites by hydrogen- or halogen-bonding interactions, respectively. These binding sites have been integrated in bidentate ester based receptors. Emission experiments reveal that both receptors selectively recognize sulfate anions, which induced a remarkable increase of a new emission band attributed to the formation of π-stacking interactions between two 1,4-naphthoquinone units. Absorption spectroscopy and mass spectrometry indicate the disruption of the ester group of the 1,4-naphthoquinone based receptor in the presence of HP2O73-, H2PO4-, F-, AcO- and C6H5CO2- and in the halogenated receptor with HP2O73-, F- and AcO- anions, while the presence of sulfate anions showed the clasical complexation behaviour. The 1H-NMR experiment showed a slow exchange process of the receptors with their sulfate complexes. The binding mode of the receptors with sulfate has been studied by DFT calculations along with the Molecular Electrostatic Potential (MEP) surface computational tool that reveals those parts of the receptors which are more suitable for interacting with anions.
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Affiliation(s)
| | - María D Velasco
- Departamento de Química Orgánica, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain.
| | - Fabiola Zapata
- Departamento de Química Orgánica, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain.
| | - Antonio Bauzá
- Departament de Química, Universitat de les Illes Balears, Crta. de Valldemossa Km75, 07122 Palma de Mallorca, Baleares, Spain
| | - Antonio Frontera
- Departament de Química, Universitat de les Illes Balears, Crta. de Valldemossa Km75, 07122 Palma de Mallorca, Baleares, Spain
| | | | - Antonio Caballero
- Departamento de Química Orgánica, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain.
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7
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Sabater P, Zapata F, Caballero A, Alkorta I, Ramirez de Arellano C, Elguero J, Molina P. Synthesis, Structure and Anion Sensing Properties of a Dicationic Bis(imidazolium)-Based Cyclophane. ChemistrySelect 2018. [DOI: 10.1002/slct.201800809] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Paula Sabater
- Departamento de Química Orgánica; Universidad de Murcia, Campus de Espinardo; E-30100 Murcia Spain
| | - Fabiola Zapata
- Departamento de Química Orgánica; Universidad de Murcia, Campus de Espinardo; E-30100 Murcia Spain
| | - Antonio Caballero
- Departamento de Química Orgánica; Universidad de Murcia, Campus de Espinardo; E-30100 Murcia Spain
| | - Ibon Alkorta
- Instituto de Química Médica; Consejo Superior de Investigaciones Científicas (CSIC); Juan de la Cierva, 3 E-28006 Madrid Spain
| | | | - Jose Elguero
- Instituto de Química Médica; Consejo Superior de Investigaciones Científicas (CSIC); Juan de la Cierva, 3 E-28006 Madrid Spain
| | - Pedro Molina
- Departamento de Química Orgánica; Universidad de Murcia, Campus de Espinardo; E-30100 Murcia Spain
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8
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Bąk KM, Masłowska K, Chmielewski MJ. Selective turn-on fluorescence sensing of sulfate in aqueous-organic mixtures by an uncharged bis(diamidocarbazole) receptor. Org Biomol Chem 2018; 15:5968-5975. [PMID: 28675234 DOI: 10.1039/c7ob01358b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A linear, uncharged, hydrogen bonding receptor A with two carbazole-based binding domains was synthesised and evaluated for its anion binding properties in DMSO/H2O mixtures. 1H NMR titrations revealed that, in DMSO/H2O 0.5%, A forms both 1 : 1 and 1 : 2 complexes with SO42-, H2PO4-, PhCOO- and Cl-. In 1 : 1 complexes the receptor encloses the tetrahedral anions tightly, forming a helical structure, while Cl- binds with a single carbazole unit only. In the presence of 10% of water the 1 : 2 complexes with SO42- and PhCOO- disappear, and the respective 1 : 1 binding constants decrease sufficiently to be quantified by UV-Vis titration. In this highly competitive medium, A binds sulfate with K1:1 = 105.47 M-1, i.e., it binds approx. 30, 360 and >1000 times more strongly than H2PO4-, PhCOO- and Cl-, respectively. Furthermore, the association with sulfate is over 50 times stronger than that for a model diamidocarbazole 1 under identical conditions, suggesting a very strong chelating effect due to the diglycoyl linker. Increasing the amount of water to 25% (the solubility limit of A) lowers the 1 : 1 binding constant with SO42- to 103.73 M-1. Receptor A was shown to act as a selective turn-on fluorescent sensor for sulfate, able to sense sulfate in sulfate-rich mineral water.
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Affiliation(s)
- Krzysztof M Bąk
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warszawa, Poland.
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9
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Shumilova TA, Rüffer T, Lang H, Kataev EA. Straightforward Design of Fluorescent Receptors for Sulfate: Study of Non-Covalent Interactions Contributing to Host-Guest Formation. Chemistry 2017; 24:1500-1504. [PMID: 29027757 DOI: 10.1002/chem.201704098] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Indexed: 01/07/2023]
Abstract
A straightforward design of receptors for binding and sensing of sulfate in aqueous medium was developed. The design involves the connection of two naphthalimide-based pH probes through a hydrogen-bonding motif. The structure of the receptor-sulfate complex, predicted by DFT calculations, was unambiguously confirmed by NMR measurements. There are three major interactions stabilizing the host-guest complex: electrostatic interactions, hydrogen bonding, and stacking interactions of the dyes. Study of two control receptors containing either one dye or methyl amide groups instead of amides, revealed that electrostatic and hydrogen bonding interactions contribute the most to affinity and selectivity of receptors. The receptors can detect sulfate in a 1:1 THF-buffer mixture in pH window 3.6-4.5 demonstrating up to 7-fold fluorescence enhancement. To the best of our knowledge, the reported PET (photoinduced electron transfer) anion probes possess the largest response for sulfate in aqueous solution yet described.
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Affiliation(s)
- Tatiana A Shumilova
- Institute of Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Tobias Rüffer
- Institute of Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Heinrich Lang
- Institute of Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Evgeny A Kataev
- Institute of Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
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10
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Li Y, Yang GH, Shen YY, Xue XS, Li X, Cheng JP. N-tert-Butyl Sulfinyl Squaramide Receptors for Anion Recognition through Assisted tert-Butyl C–H Hydrogen Bonding. J Org Chem 2017; 82:8662-8667. [DOI: 10.1021/acs.joc.7b01634] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Yao Li
- State Key Laboratory of Elemento-Organic
Chemistry, College of Chemistry, Collaborative Innovation Center of
Chemical Science and Engineering, Nankai University, Tianjin 300071, China
| | - Guo-Hui Yang
- State Key Laboratory of Elemento-Organic
Chemistry, College of Chemistry, Collaborative Innovation Center of
Chemical Science and Engineering, Nankai University, Tianjin 300071, China
| | - Ye-Ye Shen
- State Key Laboratory of Elemento-Organic
Chemistry, College of Chemistry, Collaborative Innovation Center of
Chemical Science and Engineering, Nankai University, Tianjin 300071, China
| | - Xiao-Song Xue
- State Key Laboratory of Elemento-Organic
Chemistry, College of Chemistry, Collaborative Innovation Center of
Chemical Science and Engineering, Nankai University, Tianjin 300071, China
| | - Xin Li
- State Key Laboratory of Elemento-Organic
Chemistry, College of Chemistry, Collaborative Innovation Center of
Chemical Science and Engineering, Nankai University, Tianjin 300071, China
| | - Jin-Pei Cheng
- State Key Laboratory of Elemento-Organic
Chemistry, College of Chemistry, Collaborative Innovation Center of
Chemical Science and Engineering, Nankai University, Tianjin 300071, China
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11
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Lee D, Lee C, Jun EJ, Lee M, Park S, Yoon J. Selective Recognition of Fluoride by using a Benzobisimidazolium Derivative through Aggregation-Induced Fluorescence. ChemistryOpen 2017; 6:476-479. [PMID: 28794938 PMCID: PMC5542744 DOI: 10.1002/open.201700109] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Indexed: 12/27/2022] Open
Abstract
A new benzobisimidazolium derivative (1) bearing four naphthalene moieties was synthesized and demonstrated as an F- ion-selective fluorescent chemosensor. The fluorescence of 1 in acetonitrile (CH3CN) is significantly stronger with F- and acetate (CH3CO2-), but not with other anions (Cl-, Br-, I-, HSO4-, and H2PO4-). The fluorescence of 1 is enhanced selectively with F- in the presence of a small amount of water. Our DFT calculations indicate that the electrostatic interactions between the positively charged benzobisimidazolium moieties and F- play an important role in the formation of stable aggregates. The formation of stable aggregates of 1 with F- in CH3CN is a key step for the selective sensing of F-, and the fluorescence of the aggregates is further enhanced in a mixture of 95 % CH3CN and 5 % water, which can be attributed to the aggregation-induced emission.
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Affiliation(s)
- Dayoung Lee
- Department of Chemistry and Nano ScienceEwha Womans UniversitySeoul03760Korea
| | - Chiho Lee
- Department of ChemistryKorea UniversitySeoul02841Korea
| | - Eun Jin Jun
- Department of Chemistry and Nano ScienceEwha Womans UniversitySeoul03760Korea
| | - Minji Lee
- Department of Chemistry and Nano ScienceEwha Womans UniversitySeoul03760Korea
| | - Sungnam Park
- Department of ChemistryKorea UniversitySeoul02841Korea
| | - Juyoung Yoon
- Department of Chemistry and Nano ScienceEwha Womans UniversitySeoul03760Korea
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12
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Molina P, Zapata F, Caballero A. Anion Recognition Strategies Based on Combined Noncovalent Interactions. Chem Rev 2017; 117:9907-9972. [PMID: 28665114 DOI: 10.1021/acs.chemrev.6b00814] [Citation(s) in RCA: 241] [Impact Index Per Article: 34.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This review highlights the most significant examples of an emerging field in the design of highly selective anion receptors. To date, there has been remarkable progress in the binding and sensing of anions. This has been driven in part by the discovery of ways to construct effective anion binding receptors using the dominant N-H functional groups and neutral and cationic C-H hydrogen bond donors, as well as underexplored strong directional noncovalent interactions such as halogen-bonding and anion-π interactions. In this review, we will describe a new and promising strategy for constructing anion binding receptors with distinct advantages arising from their elaborate design, incorporating multiple binding sites able to interact cooperatively with anions through these different kinds of noncovalent interactions. Comparisons with control species or solely hydrogen-bonding analogues reveal unique characteristics in terms of strength, selectivity, and interaction geometry, representing important advances in the rising field of supramolecular chemistry.
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Affiliation(s)
- Pedro Molina
- Departamento de Química Orgánica, Universidad de Murcia , Campus de Espinardo, E-30100 Murcia, Spain
| | - Fabiola Zapata
- Departamento de Química Orgánica, Universidad de Murcia , Campus de Espinardo, E-30100 Murcia, Spain
| | - Antonio Caballero
- Departamento de Química Orgánica, Universidad de Murcia , Campus de Espinardo, E-30100 Murcia, Spain
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13
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Oshchepkov AS, Mittapalli RR, Fedorova OA, Kataev EA. Naphthalimide-Based Polyammonium Chemosensors for Anions: Study of Binding Properties and Sensing Mechanisms. Chemistry 2017; 23:9657-9665. [PMID: 28504844 DOI: 10.1002/chem.201701515] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Indexed: 11/05/2022]
Abstract
New naphthalimide-based receptors for anions have been synthesized. Efficient synthetic routes have been discovered to functionalize the naphthalimide core with branched polyamines. Binding and sensing properties of the receptors were studied by potentiometric, NMR and fluorescence titrations. The receptors bind selectively to the pyrophosphate anion in buffered aqueous solutions. The receptors with more than six amine groups in the structure demonstrated the highest affinities for pyrophosphate. The fluorescence response towards anions was found to be dependent on the position of the amine groups relative to the naphthalimide core, and on the pH of the buffered solution. Three sensing mechanisms have been found that explain fluorescence responses of receptors towards anions in an aqueous solution.
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Affiliation(s)
- Aleksandr S Oshchepkov
- Institute of Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany.,Faculty of Chemistry, M. V. Lomonosov Moscow State University, Leninskiye Gory 1, Moscow, 119991, Russian Federation.,Institute of Organoelement compounds of RAS, Vavilova Str., 28, Moscow, 119991, Russian Federation
| | - Ramana R Mittapalli
- Institute of Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Olga A Fedorova
- Faculty of Chemistry, M. V. Lomonosov Moscow State University, Leninskiye Gory 1, Moscow, 119991, Russian Federation.,Institute of Organoelement compounds of RAS, Vavilova Str., 28, Moscow, 119991, Russian Federation
| | - Evgeny A Kataev
- Institute of Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
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14
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Kumar R, Sandhu S, Singh P, Kumar S. Imidazolium Based Probes for Recognition of Biologically and Medically Relevant Anions. CHEM REC 2016; 17:441-471. [PMID: 27740733 DOI: 10.1002/tcr.201600108] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Indexed: 01/08/2023]
Abstract
The imidazolium derivatives due to their positive charge possess one of the most polarized and positively charged proton at C2-H to form strong ionic hydrogen bond (also termed as double ionic hydrogen bond) with anions and also provide opportunities for anion - π interactions with electron-deficient imidazolium ring. In the present review article, imidazolium based molecular probes for their ability to recognize inorganic anions like halides, cyanide, perchlorate, carboxylic acids, phosphate, sulfate etc. and their derived molecules viz. nucleotides, DNA, RNA, surfactants, proteins, etc have been discussed. The review covers the literature published after year 2009 and has > 130 references. The previous literature has already been discussed by Yoon et al. in two review articles published in Chem. Soc. Rev. 2006 and 2010.
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Affiliation(s)
- Rahul Kumar
- Department of Chemistry, UGC Centre for advanced studies -II, Guru Nanak Dev University, Amritsar, 143005, India
| | - Sana Sandhu
- Department of Chemistry, UGC Centre for advanced studies -II, Guru Nanak Dev University, Amritsar, 143005, India
| | - Prabhpreet Singh
- Department of Chemistry, UGC Centre for advanced studies -II, Guru Nanak Dev University, Amritsar, 143005, India
| | - Subodh Kumar
- Department of Chemistry, UGC Centre for advanced studies -II, Guru Nanak Dev University, Amritsar, 143005, India
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15
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Agafontsev AM, Shumilova TA, Panchenko PA, Janz S, Fedorova OA, Kataev EA. Utilizing a pH-Sensitive Dye in the Selective Fluorescent Recognition of Sulfate. Chemistry 2016; 22:15069-15074. [DOI: 10.1002/chem.201602623] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Aleksandr M. Agafontsev
- Institute of Chemistry; Technische Universität Chemnitz; 09107 Chemnitz Germany), Fax: +49 (0) 371 531 839841
- Vorozhtsov Institute of Organic Chemistry; Siberian Branch; Russian Academy of Sciences; Novosibirsk Russia
| | - Tatiana A. Shumilova
- Institute of Chemistry; Technische Universität Chemnitz; 09107 Chemnitz Germany), Fax: +49 (0) 371 531 839841
| | - Pavel A. Panchenko
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences (INEOS RAS); 119991 Vavilova str. 28 Moscow Russia
- D. Mendeleev University of Chemical Technology of Russia; 125047 Miusskaya sq. 9 Russia
| | - Sharon Janz
- Institute of Chemistry; Technische Universität Chemnitz; 09107 Chemnitz Germany), Fax: +49 (0) 371 531 839841
| | - Olga A. Fedorova
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences (INEOS RAS); 119991 Vavilova str. 28 Moscow Russia
- D. Mendeleev University of Chemical Technology of Russia; 125047 Miusskaya sq. 9 Russia
| | - Evgeny A. Kataev
- Institute of Chemistry; Technische Universität Chemnitz; 09107 Chemnitz Germany), Fax: +49 (0) 371 531 839841
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González L, Zapata F, Caballero A, Molina P, Ramírez de Arellano C, Alkorta I, Elguero J. Host-Guest Chemistry: Oxoanion Recognition Based on Combined Charge-Assisted C-H or Halogen-Bonding Interactions and Anion⋅⋅⋅Anion Interactions Mediated by Hydrogen Bonds. Chemistry 2016; 22:7533-44. [PMID: 27061729 DOI: 10.1002/chem.201600379] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Indexed: 01/01/2023]
Abstract
Several bis-triazolium-based receptors have been synthesized and their anion-recognition capabilities have been studied. The central chiral 1,1'-bi-2-naphthol (BINOL) core features either two aryl or ferrocenyl end-capped side arms with central halogen- or hydrogen-bonding triazolium receptors. NMR spectroscopic data indicate the simultaneous occurrence of several charge-assisted aliphatic and heteroaromatic C-H noncovalent interactions and combinations of C-H hydrogen and halogen bonding. The receptors are able to selectively interact with HP2 O7 (3-) , H2 PO4 (-) , and SO4 (2-) anions, and the value of the association constant follows the sequence: HP2 O7 (3-) >SO4 (2-) >H2 PO4 (-) . The ferrocenyl end-capped 7(2+) ⋅2 BF4 (-) receptor allows recognition and differentiation of H2 PO4 (-) and HP2 O7 (3-) anions by using different channels: H2 PO4 (-) is selectively detected through absorption and emission methods and HP2 O7 (3-) by using electrochemical techniques. Significant structural results are the observation of an anion⋅⋅⋅anion interaction in the solid state (2:2 complex, 6(2+) ⋅[H2 P2 O7 ](2-) ), and a short C-I⋅⋅⋅O contact is observed in the structure of the complex [8(2+) ][SO4 ]0.5 [BF4 ].
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Affiliation(s)
- Lidia González
- Departamento de Química Orgánica, Universidad de Murcia, Campus de Espinardo, 30100, Murcia, Spain
| | - Fabiola Zapata
- Departamento de Química Orgánica, Universidad de Murcia, Campus de Espinardo, 30100, Murcia, Spain
| | - Antonio Caballero
- Departamento de Química Orgánica, Universidad de Murcia, Campus de Espinardo, 30100, Murcia, Spain.
| | - Pedro Molina
- Departamento de Química Orgánica, Universidad de Murcia, Campus de Espinardo, 30100, Murcia, Spain.
| | | | - Ibon Alkorta
- Instituto de Química Médica, Consejo Superior de Investigaciones Científicas (CSIC), Juan de la Cierva, 3, 28006, Madrid, Spain.
| | - José Elguero
- Instituto de Química Médica, Consejo Superior de Investigaciones Científicas (CSIC), Juan de la Cierva, 3, 28006, Madrid, Spain
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17
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Highly selective detection of fluoride based on 2,2-diferrocenylpropane benzimidazolium borate-ester salt. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.02.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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18
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Amide‐Triazolium‐Appended Anthracenes for Turn‐On Fluorescence Sensing of Anions in Noncompetitive and Competitive Solvents. Chempluschem 2016; 81:406-413. [DOI: 10.1002/cplu.201500527] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Indexed: 11/07/2022]
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19
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Zhi X, Liu J, Li Z, Wang H, Wang X, Cui S, Chen C, Zhao C, Li X, Guo K. Ionic hydrogen bond donor organocatalyst for fast living ring-opening polymerization. Polym Chem 2016. [DOI: 10.1039/c5py01315a] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A positive charge enhanced H-bond donor combined with H-bond acceptor as a bifunctional organocatalyst enables fast living ring-opening polymerization of lactide.
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