设计并合成了一种膦酸酯化的功能化copillar [5]芳烃。进行了1 H NMR,13 C NMR,ESI-MS和HR-MS,以提供所获得的Copillar [5]芳烃结构的融合证据。由癸基部分与柱[5]芳烃腔之间的疏水相互作用和CH-··π相互作用驱动,由这种膦酸酯官能化的AB型单体在水中制备pH响应的线性超分子聚合物。进行了浓度依赖性的1 H NMR,NOESY,DOSY和比粘度测定,以研究超分子聚合过程。
Two new copillar[5]arenes were prepared. They are arranged in two completely different motifs, a cyclic dimer containing two monomers with two different conformations that are mirror images of each other and linear supramolecularpolymers in the solid state. Not only has it been shown that to form this kind of dimer is a unique feature associated with pillar[5]arene macrocycles but also it was demonstrated
Fluorescence Modulation via Isomer-Dependent Energy Transfer in an Azobenzene-Functionalized Poly(phenylenevinylene) Derivative
作者:Elizabeth J. Harbron、Diego A. Vicente、Mirth T. Hoyt
DOI:10.1021/jp045651m
日期:2004.12.1
Fluorescence studies of poly(2-methoxy-5-(4-(phenylazo)phenyl-4'-(1,10-dioxydecyl))-1,4-phenylenevinylene) (MPA-10-PPV), a PPV derivative with alkyl-tethered azobenzene side chains that was first synthesized by Yoshino and co-workers, are presented. The emission intensity of MPA-10-PPV in dilute solution is partially quenched by energy transfer from the PPV backbone to the azobenzene side chains, and the energy transfer is more efficient to the cis azobenzene isomer than to the trans. Because of this differential, the emission intensity can be reversibly modulated by controlling the isomeric form of the azobenzene side chain with light. The energy transfer process sensitizes the cis to trans azobenzene isomerization, and this additional isomerization pathway alters the composition of the azobenzene photostationary state in MPA-10-PPV.
A phosphonated copillar[5]arene: Synthesis and application in the construction of pH-responsive supramolecular polymer in water
作者:Zhihua Zhang、Li Shao、Jie Yang
DOI:10.1016/j.tetlet.2018.06.058
日期:2018.8
A phosphonated-functionalized copillar[5]arene was designed and synthesized. 1H NMR, 13C NMR, ESI-MS and HR-MS were performed to provide converging evidences of the structure of obtained copillar[5]arene. Driven by hydrophobic interactions and C–H···π interactions between the decyl moiety and the pillar[5]arene cavity, a pH-responsive linear supramolecularpolymer was fabricated from this phosphonate-functionalized
设计并合成了一种膦酸酯化的功能化copillar [5]芳烃。进行了1 H NMR,13 C NMR,ESI-MS和HR-MS,以提供所获得的Copillar [5]芳烃结构的融合证据。由癸基部分与柱[5]芳烃腔之间的疏水相互作用和CH-··π相互作用驱动,由这种膦酸酯官能化的AB型单体在水中制备pH响应的线性超分子聚合物。进行了浓度依赖性的1 H NMR,NOESY,DOSY和比粘度测定,以研究超分子聚合过程。