169955 20260306154908.0 doi 10.1039/d5ta09556e sideral 148456 ART-2026-148456 eng Auria-Soro, Carlota Universidad de Zaragoza New nanostructured, ion-conductive, bent-core liquid crystals containing lithium and sodium salts as soft electrolyte candidates 2026 Two new tetraethylene glycol (TEG)-containing bent-core molecules are revealed as suitable, versatile supramolecular building blocks to form liquid crystalline phases and organogels in novel structured soft electrolytes. New amphiphilic bent-core molecules [TEG-Bx-10-14], composed of a short polar TEG-segment capping and well-defined bent-core, mesogenic-like structures, and a set of their [1/1] complexes with TfO− and Tf2N−/lithium and sodium salts [MA-TEG-Bx-10-14], are investigated for the first time. FT-IR, 13C CP-MAS-NMR and 1H MAS-NMR studies at variable temperatures indicate the selective complexation of cations in the TEG regions. Although new bent-core molecular designs [TEG-10-Bx-14] do not exhibit liquid crystal order, most of their complexes [MA-TEG-10-Bx-14] stabilize an attractive number of bent-core lamellar mesophases (SmCP, HNF-like, USmCP and Colob). Diffusion coefficients (D) of lithium, favoured by the liquid crystal phase transition, are estimated by solid state NMR spectroscopy. The direct current values of σdc ∼ 10−4 S cm−1 in the mid-high frequency range were found using dielectric spectroscopy, highlighting the potential of bent-core building blocks as organic and nanostructured soft electrolytes containing both lithium and sodium cations, whose ionic conductivities can be optimised through composition tuning and annealing. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/DGA/E47-23R info:eu-repo/grantAgreement/ES/MCIN/PID2021-122882NB-I00 info:eu-repo/grantAgreement/ES/MCIN/PID2024-156641NB-I00 info:eu-repo/grantAgreement/ES/MINECO/BES-2016-078753 info:eu-repo/semantics/openAccess by-nc https://creativecommons.org/licenses/by-nc/4.0/deed.es info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Cruz-Navarro, Nuria Folcia, César L. Sobrados, Isabel Haddad, Amin Sharifi Martínez-Felipe, Alfonso Ros, M. Blanca 2013 765 Universidad de Zaragoza Dpto. Química Orgánica Área Química Orgánica (2026), [16 pp.] J. mater. chem. A Journal of Materials Chemistry A 2050-7488 4980451 http://zaguan.unizar.es/record/169955/files/texto_completo.pdf Versión publicada 2811151 http://zaguan.unizar.es/record/169955/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:169955 articulos driver 2026-03-06-14:51:16 ARTICLE