描述了基于六(五)苯基苯单元的树枝状和超支化聚苯撑的Diels-Alder路线。使用乙炔基,丙炔基和苯基乙炔基取代的四苯基环戊二烯酮1c-e,获得分子量M w高达107,000 g mol -1的超支化聚合物。利用四苯基环戊二烯酮1a和1b,通过重复的Diels-Alder-脱保护序列,从3,3',5,5'-四乙炔基联苯(2c)开始合成新的树枝状聚亚苯基5c。
描述了基于六(五)苯基苯单元的树枝状和超支化聚苯撑的Diels-Alder路线。使用乙炔基,丙炔基和苯基乙炔基取代的四苯基环戊二烯酮1c-e,获得分子量M w高达107,000 g mol -1的超支化聚合物。利用四苯基环戊二烯酮1a和1b,通过重复的Diels-Alder-脱保护序列,从3,3',5,5'-四乙炔基联苯(2c)开始合成新的树枝状聚亚苯基5c。
Polyphenylene Dendrimers: From Three-Dimensional to Two-Dimensional Structures
作者:Frank Morgenroth、Erik Reuther、Klaus Müllen
DOI:10.1002/anie.199706311
日期:1997.4.4
Synthesis and intramolecular electronic interactions of hexaarylbenzene bearing redox-active Cp*(dppe)Fe-C≡C- termini
作者:Yuya Tanaka、Munetaka Akita
DOI:10.1016/j.jorganchem.2018.10.002
日期:2018.12
Hexaphenyl- (1) and hexathienyl-benzene (2) complexes with the six redox-active Cp*(dppe)Fe-C C- units are synthesized and their properties in terms of molecular junction are investigated. Both complexes show stepwise multi-redox processes and IVCT bands in the NIR region upon progressive oxidation from the neutral to hexacationic state, as a result of intramolecular electron transfer processes via troidal conjugation through the peripheral aromatic rings. Judging from the V-ab values obtained by deconvolution analysis, electronic interaction for thienylene derivative 2 turns out to be stronger than that for the phenylene complex 1. DFT analysis of model complexes support superio'r electron transfer properties for the thienyl derivatives. (C) 2018 Published by Elsevier B.V.