RT Journal Article
T1 Ion transport in triphenylene metal–organic columnar mesophases
A1 Chico, Rubén
A1 Baena, María Jesús
A1 Cuerva de Alaiz, Cristian
A1 Schmidt, Rainer
A1 Donnio, Bertrand
A1 Coco, Silverio
AB Ionic liquid crystals (iLCs) constitute an emerging materials type that combines the properties of an ionic liquid, such as ionic mobility, with the supramolecular organization of a liquid crystal. This makes them suitable candidates for applications such as anisotropic ion conductors and next-generation energy storage systems. In this work, we report ion conducting columnar mesophases based on bis(triphenylene-isocyanide) metal complexes of the type [M(CNR)2]Y (CNR = 2-(6-(4-isocyanophenoxy)hexyloxy)-3,6,7,10,11-pentakisdodecyloxy-triphenylene; M = Ag(I), Au(I); Y = NO3−, BF4−). All the gold and silver complexes display enantiotropic mesomorphism in the temperature range 35–80 °C. They self-assemble into rectangular columnar mesophases, whose X-ray diffraction profiles reveal the simultaneous stacking of triphenylene disks into one-dimensional columns and the aggregation of metallic fragments assembled into filaments that are arranged parallel between the triphenylene columns. The ionic conductivity of these mesophases is based on the counterion mobility and increases regularly as the molecular slice thickness increases along the columns, ranging from 1.70 × 10−9 to 1.64 × 10−8 S cm−1. Although the conductivity values obtained so far are lower than those required for commercial displays, our results demonstrate the key role of packing efficiency in ion transport in soft materials, and the potential of organic/inorganic nanosegregated mesophases to develop tailored and advanced ion-conducting materials. The gold and silver complexes display fluorescence behavior related to the triphenylene core in solution
PB Royal Society of Chemistry
YR 2026
FD 2026-12-16
LK https://hdl.handle.net/20.500.14352/134909
UL https://hdl.handle.net/20.500.14352/134909
LA eng
NO Chico, Rubén, et al. «Ion Transport in Triphenylene Metal–Organic Columnar Mesophases». Journal of Materials Chemistry C, vol. 14, n.o 8, 2026, pp. 3306-14. DOI.org (Crossref), https://doi.org/10.1039/D5TC03933A.
NO Universidad de Valladolid
NO Comunidad de Madrid
NO Agencia Estatal de Investigación
DS Docta Complutense
RD 13 may 2026