Regiocontrolled Synthesis of Ethene-Bridged para-Phenylene Oligomers Based on PtII- and RuII-Catalyzed Aromatization

被引：49

作者：

Chen, Tse-An ^{[1
]}

Lee, Te-Ju ^{[2
]}

Lin, Ming-Yuan ^{[1
]}

Sohel, Shariar M. A. ^{[1
]}

Dian, Eric Wei-Guang ^{[2
]}

Lush, Shie-Fu ^{[3
]}

Liu, Rai-Shung ^{[1
]}

机构：

[1] Natl Tsing Hua Univ, Dept Chem, Hsinchu 30013, Taiwan

[2] Natl Chiao Tung Univ, Dept Appl Chem, Hsinchu 30010, Taiwan

[3] Yuanpei Univ, Dept Med Technol, Hsinchu 30015, Taiwan

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2010年 / 16卷 / 06期

关键词：

catalysis; platinum; polyaromatic oligomers; regiocontrol; ruthenium; DISCOTIC LIQUID-CRYSTALS; ORGANIC ELECTRONICS; CONJUGATED POLYMERS; GRAPHITE RIBBONS; CYCLOISOMERIZATION; DERIVATIVES; HEPTACENE; ACENES; PHENANTHRENES; HYDROCARBONS;

D O I：

10.1002/chem.200902231

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report the regiocontrolled syntheses of ethene-bridged para-phenylene oligomers in three distinct classes by using Pt-II- and Ru-II-catalyzed aromatization. This synthetic approach has been developed based on twofold aromatization of the 1-aryl-2-alkynyl-benzene functionality, which proceeds by distinct regioselectivity for platinum and ruthenium catalysts. Variable-temperature NMR spectra provide evidence that large arrays of these oligomers are prone to twist from planarity. The UV/Vis and photoluminescence (PL) spectra as well as the band gaps of these regularly growing arrays show a pattern of extensive pi conjugation with increasing array sizes, except for in one instance.

引用

页码：1826 / 1833

页数：8

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