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dc.contributor.authorAngulo Pachón, César Augusto
dc.contributor.authorGascó-Catalán, Carolina
dc.contributor.authorOjeda Flores, Juan José
dc.contributor.authorMiravet, Juan F.
dc.date.accessioned2016-12-16T11:12:31Z
dc.date.available2016-12-16T11:12:31Z
dc.date.issued2016
dc.identifier.issn1439-4235
dc.identifier.issn1439-7641
dc.identifier.urihttp://hdl.handle.net/10234/165071
dc.description.abstractThe efficiency of the formation of molecular gels of simple de-rivatives of l-valineand l-isoleucine is greatl yimproved in dif-ferent organic solvents when ahexyl fragment is replaced byabulkier cyclohexyl one. Astudy using NMR and IR spectrosco-py provides information on the preferred conformation softhemolecules, indicat ing that the cyclohexyl moiety preclud es in-tramolecular Hbondingand preorganises the system for inter-molecular interactions, which are responsible for fiber forma-tion. NMR data of the gels provides thermod ynamic data on fi-brillization, revealing that the origin of this effect is mainly en-tropic. Electron microscopy (SEM and TEM) images show fibril-lar and tape-like objects, which are observed commonly inmolecular gels. Rheological measurements revealsignificantdifferences between cyclohexyl and hexyl appendedgelators.These findings could contribute to the rational design of small,flexible, buildingblocks forself-assemblyca_CA
dc.description.sponsorShipMinistry of Science and Innovat ionofSpain (grantCTQ2012-37735) and UniversitatJaume I(grant P1.1B2012-25) are thankedfor financial support.ca_CA
dc.format.extent6 p.ca_CA
dc.format.mimetypeapplication/pdfca_CA
dc.language.isoengca_CA
dc.publisherWileyca_CA
dc.relation.isPartOfChemPhysChem 2016, 17,2008 –2012ca_CA
dc.rights© 2016 Wiley-VCH Verlag GmbH &Co. KGaA, Weinheimca_CA
dc.subjectaggregationca_CA
dc.subjectgelsca_CA
dc.subjectNMR spectroscopyca_CA
dc.subjectself-assemblyca_CA
dc.subjectthermodynamicsca_CA
dc.titleImprovement of molecular gel formation efficiency by adjusting preorganization of amino acid-derived flexible molecules. A NMR and thermodynamic studyca_CA
dc.typeinfo:eu-repo/semantics/articleca_CA
dc.identifier.doihttp://dx.doi.org/10.1002/cphc.201600015
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_CA
dc.relation.publisherVersionhttp://onlinelibrary.wiley.com/doi/10.1002/cphc.201600015/fullca_CA


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