Highly emissive π-conjugated alkynylpyrene oligomers:: Their synthesis and photophysical properties

被引：71

作者：

Shimizu, Hisao

Fujimoto, Kazuhisa

Furusyo, Masaru

Maeda, Hajime

Nanai, Yasuaki

Mizuno, Kazuhiko

Inouye, Masahiko

机构：

[1] Toyama Univ, Grad Sch Pharmaceut Sci, Toyama 9300194, Japan

[2] Sumitomo Elect Ind Ltd, Anal Technol Res Ctr, Itami, Hyogo 6640016, Japan

[3] Osaka Prefecture Univ, Grad Sch Engn, Dept Appl Chem, Sakai, Osaka 5998531, Japan

来源：

JOURNAL OF ORGANIC CHEMISTRY | 2007年 / 72卷 / 04期

关键词：

D O I：

10.1021/jo061959t

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

We newly prepared para- and meta-linked alkynylpyrene oligomers and examined their photophysical properties. Oligomerization of monomeric building blocks was performed by Cu-I-promoted oxidative coupling reaction. The resulting oligomers mainly consist of 2-mer to 6-mer that were assigned on the basis of MALDI-TOF mass spectra, and the 2-mer, 3-mer, and 4-mer were isolated and fully characterized. From their absorption and fluorescence spectra, the para-linked oligomers were found to be somewhat pi-conjugated compared with meta-linked ones, and the fluorescence quantum yields decreased with increasing oligomer length (Phi(f) = 0.79-0.55).

引用

页码：1530 / 1533

页数：4

共 48 条

[1]

Anderson S, 2001, CHEM-EUR J, V7, P4706, DOI 10.1002/1521-3765(20011105)7:21<4706::AID-CHEM4706>3.0.CO

[2]

2-H

[3]

[Anonymous], 1998, ELECT MAT OLIGOMER A

[4] Examination of lipid-bound conformation of apolipoprotein E4 by pyrene excimer fluorescence [J].