89886 20200716101527.0 doi 10.1016/j.molliq.2019.111236 sideral 113210 ART-2019-113210 eng (orcid)0000-0001-8355-2289 Delso, Ignacio Universidad de Zaragoza NMR study of choline chloride-based deep eutectic solvents 2019 Access copy available to the general public Unrestricted Nowadays, the eutectic liquids (DESs) are considered an adequate alternative to the traditional solvents. Therefore, there is an increasing interest in the study of the structure, properties and applications of these mixtures. In this paper, several NMR spectroscopic techniques have been used in order to evaluate the molecular structure of three ternary DESs, composed of choline chloride, urea or glycerol or ethylene glycol, and water. The use of routine and non-routine NMR techniques, such as 1H, 13C, correlation experiments, NOESY, ROESY, and diffusion experiments gave us some important evidences pointing to a supramolecular structure of the DES, which may be the origin of their particular behaviour. The mixture containing ethylene glycol shows the feeblest structure. In these ternary solvents, the water is found within the structure that is still retained when DESs are diluted at 10% wt. info:eu-repo/grantAgreement/ES/DGA-FEDER/E31-17R info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 0.883 2019 5.065 2019 Atomic and Molecular Physics, and Optics 2019 Q1 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL 4 / 36 = 0.111 2019 Q1 T1 Condensed Matter Physics 2019 Q1 CHEMISTRY, PHYSICAL 45 / 158 = 0.285 2019 Q2 T1 Spectroscopy 2019 Q1 Materials Chemistry 2019 Q1 Physical and Theoretical Chemistry 2019 Q1 Electronic, Optical and Magnetic Materials 2019 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion (orcid)0000-0003-3632-6822 Lafuente, Carlos Universidad de Zaragoza (orcid)0000-0002-8354-7436 Muñoz-Embid, José Universidad de Zaragoza (orcid)0000-0003-1810-9488 Artal, Manuela Universidad de Zaragoza 2013 765 Universidad de Zaragoza Dpto. Química Orgánica Área Química Orgánica 2012 755 Universidad de Zaragoza Dpto. Química Física Área Química Física 290 (2019), 111236 [33 pp.] J. mol. liq. JOURNAL OF MOLECULAR LIQUIDS 0167-7322 790522 http://zaguan.unizar.es/record/89886/files/texto_completo.pdf Postprint 254148 http://zaguan.unizar.es/record/89886/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:89886 articulos driver 2020-07-16-09:31:41 ARTICLE