Columnar Liquid Crystalline Corannulenes: Synthesis, Assembly and Charge-Carrier Transport Properties  

作　　者：Yang Li Zunzhi Wang Mengwei Li Feiyi Chen Yang Zhao Qi Wang Fanli Lu Yi Liu Xiang-Kui Ren Long Chen 

机构地区：[1]Tianjin Key Laboratory of Molecular Optoelectronic Science,Department of Chemistry,Tianjin University,Tianjin 300072,China [2]School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China [3]Shenzhen Key Laboratory of Polymer Science and Technology,Guangdong Research Center for Interfacial Engineering of Functional Materials,College of Materials Science and Engineering,Shenzhen University,Shenzhen,Guangdong 518060,China [4]School of Materials Science and Engineering,Tianjin University,Tianjin 300072,China

出　　处：《Chinese Journal of Chemistry》2021年第9期2354-2358,共5页中国化学（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.51973153,21875157).

摘　　要：Two discotic liquid crystalline(LC)molecules consisting of a bowl-shaped corannulene core and five-fold photoactive azobenzene branches with differe nt pa raff i nk side chai ns were developed.Their self-assembly,photo-resp on sive behavior and charge-carrier tran sport properties were investigated in detail.A wider mesophase temperature range was achieved when utilizi ng Ion ger and furcal flexible side chai n substituti on.2D XRD measureme nts revealed the n-packed cora nnulen e-ce ntered lb(i.e.,with furcal side alkoxy I chains)exhibited helical columnar LC phase.This packing structure also led to a higher hole charge carrier mobility of 7.07 ×1O^(-2) cm^(2)-V^(-1)s^(-1) compared to that of the counterpart la with linear side chain substitutions.

关 键 词：CORANNULENE Azo compounds SELF-ASSEMBLY Liquid crystals Organic electronics 

分 类 号：O641.3[理学—物理化学]