TY - JOUR
T1 - Fluorophore core-engineered supramolecular discotic columnar liquid crystals with tunable fluorescent behavior
AU - Mu, Bin
AU - Quan, Xuhong
AU - Zhao, Yu
AU - Li, Xun
AU - Tian, Wei
N1 - Publisher Copyright:
© 2019 the Partner Organisations.
PY - 2019/8
Y1 - 2019/8
N2 - Achieving hydrogen-bonded supramolecular discotic columnar liquid crystals with tunable fluorescent behavior, especially in the solid state, is still a substantial challenge due to the absence of suitable fluorophore components. To this end, we herein report a function-directing expansion based on a C3-symmetric tris(imidazole-2-yl)benzene skeletal structure to obtain various fluorophore cores, which are either fused with π-expanded benzene or naphthalene rings, or substituted with tolyl groups twisted out of the core plane. By means of complementary hydrogen-bonding interactions with alkylated benzoic acids, well-organized supramolecular discotic columnar liquid crystals can be formed and readily aligned in a homeotropic fashion. Efficient color-tunable fluorescent behavior, ranging from blue, cyan, green to yellow emission, is achieved with these liquid crystals even in the solid state, which manifest a close correlation with the different structural parameters shown by each of the designed cores, and also the assembled structures of the resultant complexes. Our study will lead to the design of new functional supramolecular liquid crystals that can potentially be applicable as anisotropic optoelectronic materials.
AB - Achieving hydrogen-bonded supramolecular discotic columnar liquid crystals with tunable fluorescent behavior, especially in the solid state, is still a substantial challenge due to the absence of suitable fluorophore components. To this end, we herein report a function-directing expansion based on a C3-symmetric tris(imidazole-2-yl)benzene skeletal structure to obtain various fluorophore cores, which are either fused with π-expanded benzene or naphthalene rings, or substituted with tolyl groups twisted out of the core plane. By means of complementary hydrogen-bonding interactions with alkylated benzoic acids, well-organized supramolecular discotic columnar liquid crystals can be formed and readily aligned in a homeotropic fashion. Efficient color-tunable fluorescent behavior, ranging from blue, cyan, green to yellow emission, is achieved with these liquid crystals even in the solid state, which manifest a close correlation with the different structural parameters shown by each of the designed cores, and also the assembled structures of the resultant complexes. Our study will lead to the design of new functional supramolecular liquid crystals that can potentially be applicable as anisotropic optoelectronic materials.
UR - http://www.scopus.com/inward/record.url?scp=85069633993&partnerID=8YFLogxK
U2 - 10.1039/c9qm00337a
DO - 10.1039/c9qm00337a
M3 - 文章
AN - SCOPUS:85069633993
SN - 2052-1537
VL - 3
SP - 1671
EP - 1677
JO - Materials Chemistry Frontiers
JF - Materials Chemistry Frontiers
IS - 8
ER -