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Panahi T, Anderson HL, Castro KI, Lamb JD, Harrison RG. Distinguishing amines with an amino acid appended resorcinarene-based cavitand. Supramol Chem 2019. [DOI: 10.1080/10610278.2019.1692138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Tayyebeh Panahi
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, USA
| | - Holly L. Anderson
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, USA
| | - Karla I. Castro
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, USA
| | - John D. Lamb
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, USA
| | - Roger G. Harrison
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, USA
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Jeamet E, Septavaux J, Héloin A, Donnier-Maréchal M, Dumartin M, Ourri B, Mandal P, Huc I, Bignon E, Dumont E, Morell C, Francoia JP, Perret F, Vial L, Leclaire J. Wetting the lock and key enthalpically favours polyelectrolyte binding. Chem Sci 2019; 10:277-283. [PMID: 30746081 PMCID: PMC6335637 DOI: 10.1039/c8sc02966k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 10/06/2018] [Indexed: 12/30/2022] Open
Abstract
By using a combination of readily accessible experimental and computational experiments in water, we explored the factors governing the association between polyanionic dyn[4]arene and a series of α,ω-alkyldiammonium ions of increasing chain length. We found that the lock-and-key concept based on the best match between the apolar and polar regions of the molecular partners failed to explain the observed selectivities. Instead, the dissection of the energetic and structural contributions demonstrated that the binding events were actually guided by two crucial solvent-related phenomena as the chain length of the guest increases: the expected decrease of the enthalpic cost of guest desolvation and the unexpected increase of the favourable enthalpy of complex solvation. By bringing to light the decisive enthalpic impact of complex solvation during the binding of polyelectrolytes by inclusion, this study may provide a missing piece to a puzzle that one day could display the global picture of molecular recognition in water.
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Affiliation(s)
- Emeric Jeamet
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires , UMR 5246 CNRS , Université Claude Bernard Lyon1 , CPE Lyon , 43 Boulevard du 11 Novembre 1918 , 69622 Villeurbanne Cedex , France . ;
| | - Jean Septavaux
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires , UMR 5246 CNRS , Université Claude Bernard Lyon1 , CPE Lyon , 43 Boulevard du 11 Novembre 1918 , 69622 Villeurbanne Cedex , France . ;
| | - Alexandre Héloin
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires , UMR 5246 CNRS , Université Claude Bernard Lyon1 , CPE Lyon , 43 Boulevard du 11 Novembre 1918 , 69622 Villeurbanne Cedex , France . ;
| | - Marion Donnier-Maréchal
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires , UMR 5246 CNRS , Université Claude Bernard Lyon1 , CPE Lyon , 43 Boulevard du 11 Novembre 1918 , 69622 Villeurbanne Cedex , France . ;
| | - Melissa Dumartin
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires , UMR 5246 CNRS , Université Claude Bernard Lyon1 , CPE Lyon , 43 Boulevard du 11 Novembre 1918 , 69622 Villeurbanne Cedex , France . ;
| | - Benjamin Ourri
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires , UMR 5246 CNRS , Université Claude Bernard Lyon1 , CPE Lyon , 43 Boulevard du 11 Novembre 1918 , 69622 Villeurbanne Cedex , France . ;
| | - Pradeep Mandal
- Institut de Chimie et Biologie des Membranes et des Nano-objets , UMR 5248 CNRS , Université de Bordeaux , IPB , 2 rue Escarpit , 33600 Pessac , France
| | - Ivan Huc
- Institut de Chimie et Biologie des Membranes et des Nano-objets , UMR 5248 CNRS , Université de Bordeaux , IPB , 2 rue Escarpit , 33600 Pessac , France
| | - Emmanuelle Bignon
- Laboratoire de Chimie , UMR 5182 CNRS , Ecole Normale Supérieure de Lyon , Université Claude Bernard Lyon 1 , 46 Allée d'Italie , 69364 Lyon Cedex 07 , France .
- Institut des Sciences Analytiques , UMR 5280 CNRS , Université Claude Bernard Lyon 1 , Ecole Nationale Supérieure de Lyon , 5, rue de la Doua , 69100 Villeurbanne , France
| | - Elise Dumont
- Laboratoire de Chimie , UMR 5182 CNRS , Ecole Normale Supérieure de Lyon , Université Claude Bernard Lyon 1 , 46 Allée d'Italie , 69364 Lyon Cedex 07 , France .
| | - Christophe Morell
- Institut des Sciences Analytiques , UMR 5280 CNRS , Université Claude Bernard Lyon 1 , Ecole Nationale Supérieure de Lyon , 5, rue de la Doua , 69100 Villeurbanne , France
| | - Jean-Patrick Francoia
- Institut des Biomolécules Max Mousseron , UMR 5247 CNRS , Université de Montpellier , ENSCM , Place Eugène Bataillon , 34296 Montpellier Cedex 5 , France
| | - Florent Perret
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires , UMR 5246 CNRS , Université Claude Bernard Lyon1 , CPE Lyon , 43 Boulevard du 11 Novembre 1918 , 69622 Villeurbanne Cedex , France . ;
| | - Laurent Vial
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires , UMR 5246 CNRS , Université Claude Bernard Lyon1 , CPE Lyon , 43 Boulevard du 11 Novembre 1918 , 69622 Villeurbanne Cedex , France . ;
| | - Julien Leclaire
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires , UMR 5246 CNRS , Université Claude Bernard Lyon1 , CPE Lyon , 43 Boulevard du 11 Novembre 1918 , 69622 Villeurbanne Cedex , France . ;
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Pederson AMP, Price TL, Slebodnick C, Schoonover DV, Gibson HW. The Long and the Short of It: Regiospecific Syntheses of Isomers of Dicarbomethoxydibenzo-27-crown-9 and Binding Abilities of Their Pyridyl Cryptands. J Org Chem 2017; 82:8489-8496. [DOI: 10.1021/acs.joc.7b01242] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Adam M.-P. Pederson
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24060, United States
| | - Terry L Price
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24060, United States
| | - Carla Slebodnick
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24060, United States
| | - Daniel V. Schoonover
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24060, United States
| | - Harry W. Gibson
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24060, United States
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Abramova I, Rudshteyn B, Liebman JF, Greer A. Computed Regioselectivity and Conjectured Biological Activity of Ene Reactions of Singlet Oxygen with the Natural Product Hyperforin. Photochem Photobiol 2017; 93:626-631. [PMID: 28052331 DOI: 10.1111/php.12706] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 11/16/2016] [Indexed: 01/12/2023]
Abstract
Hyperforin is a constituent of St. John's wort and coexists with the singlet oxygen sensitizer hypericin. Density functional theory, molecular mechanics and Connolly surface calculations show that accessibility in the singlet oxygen "ene" reaction favors the hyperforin "southwest" and "southeast" prenyl (2-methyl-2-butenyl) groups over the northern prenyl groups. While the southern part of hyperforin is initially more susceptible to oxidation, up to 4 "ene" reactions of singlet oxygen can take place. Computational results assist in predicting the fate of adjacent hydroperoxides in hyperforin, where the loss of hydrogen atoms may lead to the formation of a hydrotrioxide and a carbonyl instead of a Russell reaction.
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Affiliation(s)
- Inna Abramova
- Department of Chemistry, Graduate Center, City University of New York, Brooklyn College, Brooklyn, NY
| | - Benjamin Rudshteyn
- Department of Chemistry, Graduate Center, City University of New York, Brooklyn College, Brooklyn, NY
| | - Joel F Liebman
- Department of Chemistry and Biochemistry, University of Maryland, Baltimore County, Baltimore, MD
| | - Alexander Greer
- Department of Chemistry, Graduate Center, City University of New York, Brooklyn College, Brooklyn, NY
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