000132122 001__ 132122 000132122 005__ 20240301161206.0 000132122 0247_ $$2doi$$a10.1021/jacs.1c05268 000132122 0248_ $$2sideral$$a131577 000132122 037__ $$aART-2021-131577 000132122 041__ $$aeng 000132122 100__ $$0(orcid)0000-0002-8932-9085$$aConcellón, Alberto 000132122 245__ $$aElectric-field-induced chirality in columnar liquid crystals 000132122 260__ $$c2021 000132122 5060_ $$aAccess copy available to the general public$$fUnrestricted 000132122 5203_ $$aWe describe a novel class of tetraphenylbenzene-based discotic molecules with exceptional self-assembling properties. Absorption and fluorescence studies confirmed the formation of J-type aggregates in solution. The discotic mesogens also show an enhancement of the emission upon aggregation. Interestingly, these discotic molecules displayed enantiotropic hexagonal columnar liquid crystal (LC) phases that can be switched into a helical columnar organization by application of an electric field. The helical columns arise from the electric-field-induced tilt of the polar fluorobenzene ring that directs all of the peripheral phenyl groups into a propeller-like conformation with respect to the central benzene core. A cooperative assembly process of these propeller-shaped molecules resolves into a helical columnar organization, in which the preferred helical sense is obtained from the stereogenic center proximate to the polar carbon–fluorine bond. The ease of inducing chirality in columnar LCs by an electric field presents opportunities to create next-generation chiral materials for a variety of applications. 000132122 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/ 000132122 590__ $$a16.383$$b2021 000132122 591__ $$aCHEMISTRY, MULTIDISCIPLINARY$$b16 / 179 = 0.089$$c2021$$dQ1$$eT1 000132122 592__ $$a5.728$$b2021 000132122 593__ $$aBiochemistry$$c2021$$dQ1 000132122 593__ $$aColloid and Surface Chemistry$$c2021$$dQ1 000132122 593__ $$aCatalysis$$c2021$$dQ1 000132122 594__ $$a25.2$$b2021 000132122 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion 000132122 700__ $$aLu, Ru-Qiang 000132122 700__ $$aYoshinaga, Kosuke 000132122 700__ $$aHsu, Hsiu-Fu 000132122 700__ $$aSwager, Timothy M. 000132122 773__ $$g143, 24 (2021), 9260-9266$$pJ. Am. Chem. Soc.$$tJournal of the American Chemical Society$$x0002-7863 000132122 8564_ $$s2051811$$uhttps://zaguan.unizar.es/record/132122/files/texto_completo.pdf$$yPostprint 000132122 8564_ $$s2868157$$uhttps://zaguan.unizar.es/record/132122/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint 000132122 909CO $$ooai:zaguan.unizar.es:132122$$particulos$$pdriver 000132122 951__ $$a2024-03-01-14:50:02 000132122 980__ $$aARTICLE