1329426-08-5Relevant articles and documents
Ion-pair-based assemblies comprising pyrrole-pyrazole hybrids
Maeda, Hiromitsu,Chigusa, Kengo,Sakurai, Tsuneaki,Ohta, Kazuchika,Uemura, Shinobu,Seki, Shu
, p. 9224 - 9233 (2013/07/26)
Modified 3,5-dipyrrolylpyrazole (DPP) derivatives in their protonated form produce planar [2+2]-type complexes with trifluoroacetate (TFA) ions. These complexes serve as constituent components of ion-pair-based assemblies. An essential strategy for the co
Electro-functional octupolar π-conjugated columnar liquid crystals
Yasuda, Takuma,Shimizu, Tomohiro,Liu, Feng,Ungar, Goran,Kato, Takashi
, p. 13437 - 13444 (2011/10/10)
A series of propeller-shaped π-conjugated molecules based on 2,4,6-tris(thiophene-2-yl)-1,3,5-triazines has been designed and synthesized to obtain ambipolar charge-transporting liquid-crystalline materials. The 3-fold electron-donating aromatic units are attached to the electron-accepting triazine core, which forms electro-functional octupolar π-conjugated structures. These octupolar molecules self-organize into one-dimensional columnar nanostructures and exhibit ambipolar carrier transport behavior, which has been revealed by time-of-flight measurements. In this approach, electron-donor and acceptor electro-active segments are assembled individually in each column to give one-dimensional nanostructured materials with precisely tuned electronic properties. Their desirable electronic structures responsible for both hole and electron conductions have also been examined by cyclic voltammetry and theoretical calculations. The present results provide a new guideline and versatile approach to the design of ambipolar conductive nanostructured liquid-crystalline materials.