RT info:eu-repo/semantics/article
T1 Ion transport in triphenylene metal–organic columnar mesophases
A1 Chico Robles, Rubén
A1 Baena Alonso, María Jesús
A1 Cuerva, Cristián
A1 Schmidt, Rainer
A1 Donnio, Bertrand
A1 Coco Cea, Silverio
K1 Liquidos
K1 Ionic liquid crystals
K1 Ionic liquids
K1 23 Química
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 conductor 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)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 andincreases regularly as the molecular slice thickness increases along the columns, ranging from 1.70 10-9 to 1.64 10-8 S/cm. Although these conductivity values obtained so far are lower than those required for commercial displays, our results demonstrate the key role of packaging 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 fluorescent behavior related to the triphenylene core in solution.
PB Royal Society of Chemistry
SN 2050-7526
YR 2026
FD 2026
LK https://uvadoc.uva.es/handle/10324/83784
UL https://uvadoc.uva.es/handle/10324/83784
LA eng
NO Journal of Materials Chemistry C, 2026,14, n. 8, 3306-3314
NO Producción Científica
DS UVaDOC
RD 26-mar-2026