Nonconventional Luminescence Enhanced by Silicone-Induced Aggregation

被引：32

作者：

Lu, Hang ^{[1
,2
]}

Hu, Ziqi ^{[3
]}

Feng, Shengyu ^{[1
,2
]}

机构：

[1] Shandong Univ, Key Lab Special Funct Aggregated Mat, Sch Chem & Chem Engn, Minist Educ, Jinan 250100, Peoples R China

[2] Shandong Univ, Key Lab Colloid & Interface Chem, Sch Chem & Chem Engn, Minist Educ, Jinan 250100, Peoples R China

[3] Peking Univ, Beijing Natl Lab Mol Sci, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China

来源：

CHEMISTRY-AN ASIAN JOURNAL | 2017年 / 12卷 / 11期

基金：

中国国家自然科学基金;

关键词：

aggregation; nonconventional luminogens; photophysics; silicon; STRONG BLUE PHOTOLUMINESCENCE; INDUCED EMISSION; CLICK CHEMISTRY; FLUORESCENCE; DENDRIMERS; HYDROXYL; THIOL;

D O I：

10.1002/asia.201700234

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nonconventional organic luminogens have attracted a great deal of interests owing to their intriguing properties (e.g., unusual fluorescence emission) and promising applications. According to previous studies, it was found that introduction of Si-O could enhance the fluorescence emission of the luminogens. Herein, we have synthesized some fluorescent siloxane derivatives and similar molecules without Si-O units by simple and efficient modification to investigate the role of Si-O units in the emission. It was found that the strong emission could be observed in dilute solutions of siloxane derivatives, but not in the carbon compounds. UV/Vis absorption, fluorescence spectra, nuclear magnetic resonance spectra, and theoretical calculations indicated that the heteroatom and the Si-O unit formed the coordination bond in the siloxane derivatives, resulting in enhanced fluorescence emission.

引用

页码：1213 / 1217

页数：5

共 40 条

[1] Blue-emitting PEGylated hyperbranched PAMAM: transformation of cross-linked micelles to hollow spheres controlled by the PEG grafting density [J].