TY - JOUR
T1 - Synthesis and thermotropic properties of new green electrochromic ionic liquid crystals
AU - Veltri, Lucia
AU - Cavallo, Gabriella
AU - Beneduci, Amerigo
AU - Metrangolo, Pierangelo
AU - Corrente, Giuseppina Anna
AU - Ursini, Maurizio
AU - Romeo, Roberto
AU - Terraneo, Giancarlo
AU - Gabriele, Bartolo
PY - 2019
Y1 - 2019
N2 - Novel 1,1′-bis(4-alkylphenyl)-[4,4′-bipyridine]-1,1′-diium salts, with alkyl chains of different lengths (8, 10 and 14 carbon atoms) and with different counteranions (Cl-, NTf2-, OTf-, OTs-, PF6-, BPh4-), have been prepared and fully characterized for their thermotropic behavior by polarized optical microscopy (POM), and calorimetric measurements. Almost all the synthesized compounds showed a high thermal stability, a wide temperature range of liquid-crystalline mesophase and, for some of them, the LC transition temperatures were relatively low. These compounds also exhibited electrochromic properties, which have been studied both in solution and in the LC phase, making the new materials very interesting for different opto-electronic applications.
AB - Novel 1,1′-bis(4-alkylphenyl)-[4,4′-bipyridine]-1,1′-diium salts, with alkyl chains of different lengths (8, 10 and 14 carbon atoms) and with different counteranions (Cl-, NTf2-, OTf-, OTs-, PF6-, BPh4-), have been prepared and fully characterized for their thermotropic behavior by polarized optical microscopy (POM), and calorimetric measurements. Almost all the synthesized compounds showed a high thermal stability, a wide temperature range of liquid-crystalline mesophase and, for some of them, the LC transition temperatures were relatively low. These compounds also exhibited electrochromic properties, which have been studied both in solution and in the LC phase, making the new materials very interesting for different opto-electronic applications.
UR - http://www.scopus.com/inward/record.url?scp=85075675541&partnerID=8YFLogxK
U2 - 10.1039/c9nj03303c
DO - 10.1039/c9nj03303c
M3 - Article
AN - SCOPUS:85075675541
SN - 1144-0546
VL - 43
SP - 18285
EP - 18293
JO - New Journal of Chemistry
JF - New Journal of Chemistry
IS - 46
ER -