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  • Naranjo, TeresaIMDEA Nanociencia, Faraday 9,Campus UAM, Madrid 28049, Spain. (author)

Hydrogen-bonded host–guest systems are stable in ionic liquids

  • Article/chapterEnglish2020

Publisher, publication year, extent ...

  • 2020-09-22
  • Nature Research,2020
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:ri-48923
  • https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-48923URI
  • https://doi.org/10.1038/s41598-020-71803-3DOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-285725URI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Funding details: VetenskapsrÃ¥det, VR, 2014-4694; Funding details: European Commission, EC; Funding details: 307609, MSCA-IF 746579; Funding details: Knut och Alice Wallenbergs Stiftelse, KAW2012.0078; Funding details: Ministerio de Economía y Competitividad, MINECO, FJCI-2015-23531, CTQ2014-60541-P, CTQ2017-86060-P; Funding details: Comunidad de Madrid, 2017-T1/IND-5562, S2013/MIT-3007; Funding details: Ministerio de Economía y Competitividad, MINECO, SEV-2016-0686; Funding text 1: We acknowledge funding for the European Union (ERC-StG-MINT 307609 and MSCA-IF 746579), the Min-isterio de Economía y Competitividad (CTQ2014-60541-P, CTQ2017-86060-P and FJCI-2015-23531), and the Comunidad de Madrid (MAD2D-CM program S2013/MIT-3007 and Programa de Atracción del Talento Inves-tigador de la Comunidad de Madrid 2017-T1/IND-5562). IMDEA Nanociencia acknowledges support from the “Severo Ochoa” Programme for Centres of Excellence in R&D (MINECO, Grant SEV-2016-0686). The Knut and Alice Wallenberg Foundation (Project number: KAW2012.0078) and the Swedish Research Council (Project number: 2014-4694) are gratefully acknowledged for their financial support.
  • QC 20201123
  • We show that H-bonded host–guest systems associate in ionic liquids (ILs), pure salts with melting point below room temperature, in which dipole–dipole electrostatic interactions should be negligible in comparison with dipole-charge interactions. Binding constants (Ka) obtained from titrations of four H-bonded host–guest systems in two organic solvents and two ionic liquids yield smaller yet comparable Ka values in ionic liquids than in organic solvents. We also detect the association event using force spectroscopy, which confirms that the binding is not solely due to (de)solvation processes. Our results indicate that classic H-bonded host–guest supramolecular chemistry takes place in ILs. This implies that strong H-bonds are only moderately affected by surroundings composed entirely of charges, which can be interpreted as an indication that the balance of Coulombic to covalent forces in strong H-bonds is not tipped towards the former. © 2020, The Author(s).

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  • Álvarez-Asencio, RubenRISE,Kemiska processer och läkemedel,RISE Res Inst Sweden, Biosci & Mat, S-11428 Stockholm, Sweden.(Swepub:kth)u1u6jl5f (author)
  • Pedraz, PatriciaIMDEA Nanociencia, Faraday 9,Campus UAM, Madrid 28049, Spain. (author)
  • Nieto-Ortega, BelenIMDEA Nanociencia, Faraday 9,Campus UAM, Madrid 28049, Spain. (author)
  • Silva, SaraIMDEA Nanociencia, Faraday 9,Campus UAM, Madrid 28049, Spain. (author)
  • Burzurí, EnriqueIMDEA Nanociencia, Faraday 9,Campus UAM, Madrid 28049, Spain. (author)
  • Rutland, Mark W.,ProfessorKTH,RISE,Material- och ytdesign,KTH Royal Institute of Technology, Sweden,Yt- och korrosionsvetenskap,RISE Res Inst Sweden, Biosci & Mat, S-11428 Stockholm, Sweden.(Swepub:kth)u1ml9bxf (author)
  • Pérez, EmilioIMDEA Nanociencia, Faraday 9,Campus UAM, Madrid 28049, Spain. (author)
  • IMDEA Nanociencia, Faraday 9,Campus UAM, Madrid 28049, Spain.Kemiska processer och läkemedel (creator_code:org_t)

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  • In:Scientific Reports: Nature Research102045-2322

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