The synthesis of discrete multirotaxanes with well‐defined structures remains a great challenge. Herein, we present the successful construction of diverse discrete multirotaxanes with well‐defined supramolecular metallacycles as cores by a modular approach. Moreover, these novel multirotaxanes featured a stimuli‐responsive property that enabled the introduction and removal of the bromide anion by taking
Synthesis and Characterization of New Conjugated Fluorenyl-Porphyrin Dendrimers for Optics
作者:Dandan Yao、Xu Zhang、Olivier Mongin、Frédéric Paul、Christine O. Paul-Roth
DOI:10.1002/chem.201504617
日期:2016.4.11
A new family of conjugated meso‐tetraphenylporphyrin‐based dendrimers with four (TPP1, TPP2), eight (TPP3, TPP4, TPP5) and up to sixteen (TPP6) fluorenyl groups has been synthesized and fully characterized. These tetraphenylporphyrin‐cored dendrimers present peripheral alkynyl π‐conjugated dendrons with fluorenyl termini. The meso‐aryl rings of these porphyrins are functionalized either in para‐ (TPP1
合成了一个新的基于共轭内消旋四苯基卟啉的树枝状大分子家族,该家族具有四个(TPP1,TPP2),八个(TPP3,TPP4,TPP5)和至多十六个(TPP6)芴基。这些以四苯基卟啉为核心的树枝状分子具有带有芴基末端的外围炔基π共轭树枝状分子。这些卟啉的内消旋芳基环在对位(TPP1,TPP2和TPP3)或间位(TPP4,TPP5和TPP6)。参照两种缺乏芴基树突的卟啉(TPP - H 1,2,3和TPP - H 4,5,6)讨论了它们的详细发光特性。陈述了它们的发光量子产率和寿命强烈依赖于它们的结构,并且还讨论了它们的非线性光学性质。
Studies Toward the Synthesis of Phenylacetylene Macrocycle Based Rotaxane Precursors as Building Blocks for Organic Nanotubes
Synthetic efforts toward the preparation of rotaxaneprecursorsbased on phenylacetylenemacrocycles (PAM) are described. The aim of this study was to determine the optimal structural parameters to prepare high-molecular-weight rotaxaneprecursors through a strategy involving two Sonogashira couplings to attach bulky blockers on the PAM core. PAMs with different sizes and functions were prepared and
Conjugated Polyelectrolyte Dendrimers: Aggregation, Photophysics, and Amplified Quenching
作者:Fude Feng、Seoung Ho Lee、Sung Won Cho、Sevnur Kömürlü、Tracy D. McCarley、Adrian Roitberg、Valeria D. Kleiman、Kirk S. Schanze
DOI:10.1021/la303641m
日期:2012.12.4
Conjugated polyelectrolyte dendrimers (CPDs) are monodisperse macromolecules that feature a fully π-conjugated dendrimer core surrounded on the periphery by ionic solubilizing groups. CPDs are soluble in water and polar organic solvents, and they exhibit photophysics characteristic of the π-conjugated chromophores comprising the dendrimer core. Here we describe the synthesis and photophysical characterization
Fabrication of Neutral Supramolecular Polymeric Films via Post-electropolymerization of Discrete Metallacycles
作者:Guangqiang Yin、Lijun Chen、Cuihong Wang、Haibo Yang
DOI:10.1002/cjoc.201700610
日期:2018.2
the films was able to be well regulated by the number of scanning cycles. Moreover, we found that the shape of the metallacycles and the number of triphenylamine moieties played important roles in the formation of the final polymerfilms. We believe that the introduction of the neutralmetallacycles into the final polymer structures not only enriches the library of supramolecularpolymericfilms but