1
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Taylor AJ, Docker A, Beer PD. Allosteric and Electrostatic Cooperativity in a Heteroditopic Halogen Bonding Receptor System. Chem Asian J 2023; 18:e202201170. [PMID: 36516344 PMCID: PMC10107604 DOI: 10.1002/asia.202201170] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 12/15/2022]
Abstract
A halogen bonding (XB) heteroditopic receptor, consisting of a 1,3-bis-iodo-triazole benzene XB anion binding site covalently appended via a flexible methylene group with two benzo-15-crown-5 (B15C5) cation binding moieties, and its hydrogen bonding receptor analogue, are used to delineate the mechanisms of cooperativity for alkali metal halide ion-pair recognition. Extensive cation, anion and ion-pair 1 H NMR titration investigations demonstrate the combination of allosteric pre-organisation, via 1 : 1 stoichiometric intramolecular potassium and rubidium metal cation bis-B15C5 sandwich complexation, in concert with favourable electrostatics and XB potency, results in a remarkable enhancement of halide anion binding affinity by a factor of at least 700. By contrast, a notably diminished halide anion affinity enhancement factor of just 15 is observed with the corresponding 1 : 1 stoichiometric sodium cation complexed receptor system, where the smaller sized cation singly occupies one B15C5 unit and only an electrostatic contribution to cooperativity is possible. These observations serve to illustrate that allosteric pre-organisation capability, electrostatic attraction and XB mediated anion recognition are important strategic design features to incorporate in future high-fidelity heteroditopic ion-pair receptor development.
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Affiliation(s)
- Andrew J Taylor
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Andrew Docker
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Paul D Beer
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
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2
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3
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Engelage E, Reinhard D, Huber SM. Is There a Single Ideal Parameter for Halogen-Bonding-Based Lewis Acidity? Chemistry 2020; 26:3843-3861. [PMID: 31943430 PMCID: PMC7154672 DOI: 10.1002/chem.201905273] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Indexed: 01/08/2023]
Abstract
Halogen-bond donors (halogen-based Lewis acids) have now found various applications in diverse fields of chemistry. The goal of this study was to identify a parameter obtainable from a single DFT calculation that reliably describes halogen-bonding strength (Lewis acidity). First, several DFT methods were benchmarked against the CCSD(T) CBS binding data of complexes of 17 carbon-based halogen-bond donors with chloride and ammonia as representative Lewis bases, which revealed M05-2X with a partially augmented def2-TZVP(D) basis set as the best model chemistry. The best single parameter to predict halogen-bonding strengths was the static σ-hole depth, but it still provided inaccurate predictions for a series of compounds. Thus, a more reliable parameter, Ωσ* , has been developed through the linear combination of the σ-hole depth and the σ*(C-I) energy, which was further validated against neutral, cationic, halogen- and nitrogen-based halogen-bond donors with very good performance.
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Affiliation(s)
- Elric Engelage
- Organische Chemie IFakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
| | - Dominik Reinhard
- Organische Chemie IFakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
| | - Stefan M. Huber
- Organische Chemie IFakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
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4
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Voelkel MHH, Wonner P, Huber SM. Preorganization: A Powerful Tool in Intermolecular Halogen Bonding in Solution. ChemistryOpen 2020; 9:214-224. [PMID: 32071831 PMCID: PMC7011185 DOI: 10.1002/open.201900355] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/21/2020] [Indexed: 11/25/2022] Open
Abstract
Preorganization is a powerful tool in supramolecular chemistry which has been utilized successfully in intra- and intermolecular halogen bonding. In previous work, we had developed a bidentate bis(iodobenzimidazolium)-based halogen bond donor which featured a central trifluoromethyl substituent. This compound showed a markedly increased catalytic activity compared to unsubstituted bis(iodoimidazolium)-based Lewis acids, which could be explained either by electronic effects (the electron withdrawal by the fluorinated substituent) or by preorganization (the hindered rotation of the halogen bonding moieties). Herein, we systematically investigate the origin of this increased Lewis acidity via a comparison of the two types of compounds and their respective derivatives with or without the central trifluoromethyl group. Calorimetric measurements of halide complexations indicated that preorganization is the main reason for the higher halogen bonding strength. The performance of the catalysts in a series of benchmark reactions corroborates this finding.
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Affiliation(s)
- Martin H. H. Voelkel
- Fakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
| | - Patrick Wonner
- Fakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
| | - Stefan Matthias Huber
- Fakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
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5
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Scheiner S, Michalczyk M, Zierkiewicz W. Coordination of anions by noncovalently bonded σ-hole ligands. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2019.213136] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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6
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Bunchuay T, Docker A, Martinez-Martinez AJ, Beer PD. A Potent Halogen-Bonding Donor Motif for Anion Recognition and Anion Template Mechanical Bond Synthesis. Angew Chem Int Ed Engl 2019; 58:13823-13827. [PMID: 31291498 DOI: 10.1002/anie.201907625] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Indexed: 01/08/2023]
Abstract
The covalent attachment of electron deficient perfluoroaryl substituents to a bis-iodotriazole pyridinium group produces a remarkably potent halogen bonding donor motif for anion recognition in aqueous media. Such a motif also establishes halogen bonding anion templation as a highly efficient method for constructing a mechanically interlocked molecule in unprecedented near quantitative yield. The resulting bis-perfluoroaryl substituted iodotriazole pyridinium axle containing halogen bonding [2]rotaxane host exhibits exceptionally strong halide binding affinities in competitive 50 % water containing aqueous media, by a factor of at least three orders of magnitude greater in comparison to a hydrogen bonding rotaxane host analogue. These observations further champion and advance halogen bonding as a powerful tool for recognizing anions in aqueous media.
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Affiliation(s)
- Thanthapatra Bunchuay
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK.,Current address: Faculty of Science, Mahidol University, 272 Rama IV Road, Ratchathewi District, Bangkok, 10400, Thailand
| | - Andrew Docker
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK
| | - Antonio J Martinez-Martinez
- 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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7
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A Potent Halogen‐Bonding Donor Motif for Anion Recognition and Anion Template Mechanical Bond Synthesis. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201907625] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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8
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Deka B, Sarma RJ. Cooperative Binding of Fluoride Anions to a Flexible Cystine‐Based Receptor Containing Two 3,5‐Dinitrobenzamide Motifs. ChemistrySelect 2018. [DOI: 10.1002/slct.201800956] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Barnali Deka
- Department of ChemistryUniversity of Gauhati, Guwahati 781014 Assam India
| | - Rupam J Sarma
- Department of ChemistryUniversity of Gauhati, Guwahati 781014 Assam India
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9
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Scheiner S. Tetrel Bonding as a Vehicle for Strong and Selective Anion Binding. Molecules 2018; 23:E1147. [PMID: 29751608 PMCID: PMC6100077 DOI: 10.3390/molecules23051147] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 05/07/2018] [Accepted: 05/09/2018] [Indexed: 01/22/2023] Open
Abstract
Tetrel atoms T (T = Si, Ge, Sn, and Pb) can engage in very strong noncovalent interactions with nucleophiles, which are commonly referred to as tetrel bonds. The ability of such bonds to bind various anions is assessed with a goal of designing an optimal receptor. The Sn atom seems to form the strongest bonds within the tetrel family. It is most effective in the context of a -SnF₃ group and a further enhancement is observed when a positive charge is placed on the receptor. Connection of the -SnF₃ group to either an imidazolium or triazolium provides a strong halide receptor, which can be improved if its point of attachment is changed from the C to an N atom of either ring. Aromaticity of the ring offers no advantage nor is a cyclic system superior to a simple alkyl amine of any chain length. Placing a pair of -SnF₃ groups on a single molecule to form a bipodal dicationic receptor with two tetrel bonds enhances the binding, but falls short of a simple doubling. These two tetrel groups can be placed on opposite ends of an alkyl diamine chain of any length although SnF₃⁺NH₂(CH₂)nNH₂SnF₃⁺ with n between 2 and 4 seems to offer the strongest halide binding. Of the various anions tested, OH− binds most strongly: OH− > F− > Cl− > Br− > I−. The binding energy of the larger NO₃− and HCO₃− anions is more dependent upon the charge of the receptor. This pattern translates into very strong selectivity of binding one anion over another. The tetrel-bonding receptors bind far more strongly to each anion than an equivalent number of K⁺ counterions, which leads to equilibrium ratios in favor of the former of many orders of magnitude.
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Affiliation(s)
- Steve Scheiner
- Department of Chemistry and Biochemistry, Utah State University, Logan, UT 84322-0300, USA.
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10
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Tepper R, Schubert US. Halogenbrücken in Lösung: Anionenerkennung, Templat‐gestützte Selbstorganisation und Organokatalyse. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201707986] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ronny Tepper
- Institut für Organische Chemie und Makromolekulare Chemie (IOMC) Friedrich-Schiller-Universität Jena Humboldtstraße 10 07743 Jena Deutschland
- Jena Center for Soft Matter (JCSM) Friedrich-Schiller-Universität Jena Philosophenweg 7 07743 Jena Deutschland
| | - Ulrich S. Schubert
- Institut für Organische Chemie und Makromolekulare Chemie (IOMC) Friedrich-Schiller-Universität Jena Humboldtstraße 10 07743 Jena Deutschland
- Jena Center for Soft Matter (JCSM) Friedrich-Schiller-Universität Jena Philosophenweg 7 07743 Jena Deutschland
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11
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Tepper R, Schubert US. Halogen Bonding in Solution: Anion Recognition, Templated Self-Assembly, and Organocatalysis. Angew Chem Int Ed Engl 2018; 57:6004-6016. [PMID: 29341377 DOI: 10.1002/anie.201707986] [Citation(s) in RCA: 180] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 12/14/2017] [Indexed: 12/21/2022]
Abstract
The halogen bond is a supramolecular interaction between a Lewis-acidic region of a covalently bound halogen and a Lewis base. It has been studied widely in silico and experimentally in the solid state; however, solution-phase applications have attracted enormous interest in the last few years. This Minireview highlights selected recent developments in halogen bond interactions in solution, with a focus on the use of receptors based on halogen bonds in anion recognition and sensing, anion-templated self-assembly, as well as in organocatalysis.
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Affiliation(s)
- Ronny Tepper
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Ulrich S Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
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12
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Qiu J, Song B, Li X, Cozzolino AF. Solution and gas phase evidence of anion binding through the secondary bonding interactions of a bidentate bis-antimony(iii) anion receptor. Phys Chem Chem Phys 2018; 20:46-50. [DOI: 10.1039/c7cp05933g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Solution and gas phase evidence of halide binding to a bis-antimony(iii) anion receptor is demonstrated through NMR titrations and ESI-MS.
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Affiliation(s)
- J. Qiu
- Department of Chemistry and Biochemistry
- Texas Tech University
- Lubbock
- USA
| | - B. Song
- Department of Chemistry
- University of South Florida
- Tampa
- USA
| | - X. Li
- Department of Chemistry
- University of South Florida
- Tampa
- USA
| | - A. F. Cozzolino
- Department of Chemistry and Biochemistry
- Texas Tech University
- Lubbock
- USA
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13
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Scheiner S. Assembly of Effective Halide Receptors from Components. Comparing Hydrogen, Halogen, and Tetrel Bonds. J Phys Chem A 2017; 121:3606-3615. [DOI: 10.1021/acs.jpca.7b02305] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Steve Scheiner
- Department of Chemistry and
Biochemistry Utah State University, Logan, Utah 84322-0300, United States
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14
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Rowe RK, Ho PS. Relationships between hydrogen bonds and halogen bonds in biological systems. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2017; 73:255-264. [PMID: 28362290 DOI: 10.1107/s2052520617003109] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 02/24/2017] [Indexed: 06/07/2023]
Abstract
The recent recognition that halogen bonding (XB) plays important roles in the recognition and assembly of biological molecules has led to new approaches in medicinal chemistry and biomolecular engineering. When designing XBs into strategies for rational drug design or into a biomolecule to affect its structure and function, we must consider the relationship between this interaction and the more ubiquitous hydrogen bond (HB). In this review, we explore these relationships by asking whether and how XBs can replace, compete against or behave independently of HBs in various biological systems. The complex relationships between the two interactions inform us of the challenges we face in fully utilizing XBs to control the affinity and recognition of inhibitors against their therapeutic targets, and to control the structure and function of proteins, nucleic acids and other biomolecular scaffolds.
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Affiliation(s)
- Rhianon K Rowe
- Department of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, Colorado 80523-1870, USA
| | - P Shing Ho
- Department of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, Colorado 80523-1870, USA
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15
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Scheiner S. Comparison of halide receptors based on H, halogen, chalcogen, pnicogen, and tetrel bonds. Faraday Discuss 2017; 203:213-226. [DOI: 10.1039/c7fd00043j] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A series of halide receptors are constructed and the geometries and energetics of their binding to F−, Cl−, and Br−assessed by quantum calculations. The dicationic receptors are based on a pair of imidazolium units, connectedviaa benzene spacer. The imidazoliums each donate a proton to a halide in a pair of H-bonds. Replacement of the two bonding protons by Br leads to bindingviaa pair of halogen bonds. Likewise, chalcogen, pnicogen, and tetrel bonds occur when the protons are replaced, respectively, by Se, As, and Ge. Regardless of the binding group considered, F−is bound much more strongly than are Cl−and Br−. With respect to the latter two halides, the binding energy is not very sensitive to the nature of the binding atom, whether H or some other atom. But there is a great deal of differentiation with respect to F−, where the order varies as tetrel > H ∼ pnicogen > halogen > chalcogen. The replacement of the various binding atoms by their analogues in the next row of the periodic table enhances the fluoride binding energy by 22–56%. The strongest fluoride binding agents utilize the tetrel bonds of the Sn atom, whereas it is I-halogen bonds that are preferred for Cl−and Br−. After incorporation of thermal and entropic effects, the halogen, chalcogen, and pnicogen bonding receptors do not represent much of an improvement over H-bonds with regard to this selectivity for F−, even I which binds quite strongly. In stark contrast, the tetrel-bonding derivatives, both Ge and Sn, show by far the greatest selectivity for F−over the other halides, as much as 1013, an enhancement of six orders of magnitude when compared to the H-bonding receptor.
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Affiliation(s)
- Steve Scheiner
- Department of Chemistry and Biochemistry
- Utah State University
- Logan
- USA
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16
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Massena CJ, Wageling NB, Decato DA, Martin Rodriguez E, Rose AM, Berryman OB. A Halogen-Bond-Induced Triple Helicate Encapsulates Iodide. Angew Chem Int Ed Engl 2016; 55:12398-402. [PMID: 27411932 PMCID: PMC5155591 DOI: 10.1002/anie.201605440] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Indexed: 12/11/2022]
Abstract
The self-assembly of higher-order anion helicates in solution remains an elusive goal. Herein, we present the first triple helicate to encapsulate iodide in organic and aqueous media as well as the solid state. The triple helicate self-assembles from three tricationic arylethynyl strands and resembles a tubular anion channel lined with nine halogen bond donors. Eight strong iodine⋅⋅⋅iodide halogen bonds and numerous buried π-surfaces endow the triplex with remarkable stability, even at elevated temperatures. We suggest that the natural rise of a single-strand helix renders its linear halogen-bond donors non-convergent. Thus, the stringent linearity of halogen bonding is a powerful tool for the synthesis of multi-strand anion helicates.
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Affiliation(s)
- Casey J Massena
- Department of Chemistry and Biochemistry, University of Montana, 32 Campus Dr, Missoula, MT, 59812, USA
| | - Nicholas B Wageling
- Department of Chemistry and Biochemistry, University of Montana, 32 Campus Dr, Missoula, MT, 59812, USA
| | - Daniel A Decato
- Department of Chemistry and Biochemistry, University of Montana, 32 Campus Dr, Missoula, MT, 59812, USA
| | - Enrique Martin Rodriguez
- Department of Chemistry and Biochemistry, University of Montana, 32 Campus Dr, Missoula, MT, 59812, USA
| | - Ariana M Rose
- Department of Chemistry and Biochemistry, University of Montana, 32 Campus Dr, Missoula, MT, 59812, USA
| | - Orion B Berryman
- Department of Chemistry and Biochemistry, University of Montana, 32 Campus Dr, Missoula, MT, 59812, USA.
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17
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Barendt TA, Docker A, Marques I, Félix V, Beer PD. Selective Nitrate Recognition by a Halogen-Bonding Four-Station [3]Rotaxane Molecular Shuttle. Angew Chem Int Ed Engl 2016; 55:11069-76. [PMID: 27436297 PMCID: PMC5113793 DOI: 10.1002/anie.201604327] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Indexed: 12/15/2022]
Abstract
The synthesis of the first halogen bonding [3]rotaxane host system containing a bis-iodo triazolium-bis-naphthalene diimide four station axle component is reported. Proton NMR anion binding titration experiments revealed the halogen bonding rotaxane is selective for nitrate over the more basic acetate, hydrogen carbonate and dihydrogen phosphate oxoanions and chloride, and exhibits enhanced recognition of anions relative to a hydrogen bonding analogue. This elaborate interlocked anion receptor functions via a novel dynamic pincer mechanism where upon nitrate anion binding, both macrocycles shuttle from the naphthalene diimide stations at the periphery of the axle to the central halogen bonding iodo-triazolium station anion recognition sites to form a unique 1:1 stoichiometric nitrate anion-rotaxane sandwich complex. Molecular dynamics simulations carried out on the nitrate and chloride halogen bonding [3]rotaxane complexes corroborate the (1) H NMR anion binding results.
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Affiliation(s)
- Timothy A Barendt
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Andrew Docker
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Igor Marques
- Department of Chemistry, CICECO-Aveiro Institute of Materials, Department of Medical Sciences, iBiMED-Institute of Biomedicine, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Vítor Félix
- Department of Chemistry, CICECO-Aveiro Institute of Materials, Department of Medical Sciences, iBiMED-Institute of Biomedicine, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Paul D Beer
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK.
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18
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Sabater P, Zapata F, Caballero A, de la Visitación N, Alkorta I, Elguero J, Molina P. Comparative Study of Charge-Assisted Hydrogen- and Halogen-Bonding Capabilities in Solution of Two-Armed Imidazolium Receptors toward Oxoanions. J Org Chem 2016; 81:7448-58. [DOI: 10.1021/acs.joc.6b01146] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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
| | - Néstor de la Visitación
- 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
| | - José 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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19
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Barendt TA, Docker A, Marques I, Félix V, Beer PD. Selective Nitrate Recognition by a Halogen-Bonding Four-Station [3]Rotaxane Molecular Shuttle. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201604327] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Timothy A. Barendt
- Chemistry Research Laboratory; Department of Chemistry; University of Oxford; 12 Mansfield Road Oxford OX1 3TA UK
| | - Andrew Docker
- Chemistry Research Laboratory; Department of Chemistry; University of Oxford; 12 Mansfield Road Oxford OX1 3TA UK
| | - Igor Marques
- Department of Chemistry; CICECO-Aveiro Institute of Materials; Department of Medical Sciences; iBiMED-Institute of Biomedicine; University of Aveiro; 3810-193 Aveiro Portugal
| | - Vítor Félix
- Department of Chemistry; CICECO-Aveiro Institute of Materials; Department of Medical Sciences; iBiMED-Institute of Biomedicine; University of Aveiro; 3810-193 Aveiro Portugal
| | - Paul D. Beer
- Chemistry Research Laboratory; Department of Chemistry; University of Oxford; 12 Mansfield Road Oxford OX1 3TA UK
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20
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Massena CJ, Wageling NB, Decato DA, Martin Rodriguez E, Rose AM, Berryman OB. A Halogen‐Bond‐Induced Triple Helicate Encapsulates Iodide. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605440] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Casey J. Massena
- Department of Chemistry and Biochemistry University of Montana 32 Campus Dr Missoula MT 59812 USA
| | - Nicholas B. Wageling
- Department of Chemistry and Biochemistry University of Montana 32 Campus Dr Missoula MT 59812 USA
| | - Daniel A. Decato
- Department of Chemistry and Biochemistry University of Montana 32 Campus Dr Missoula MT 59812 USA
| | - Enrique Martin Rodriguez
- Department of Chemistry and Biochemistry University of Montana 32 Campus Dr Missoula MT 59812 USA
| | - Ariana M. Rose
- Department of Chemistry and Biochemistry University of Montana 32 Campus Dr Missoula MT 59812 USA
| | - Orion B. Berryman
- Department of Chemistry and Biochemistry University of Montana 32 Campus Dr Missoula MT 59812 USA
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