Novel asymmetrical pyrene derivatives as light emitting materials: Synthesis and photophysics
Novel asymmetrical pyrene derivatives as light emitting materials: Synthesis and photophysics
复制标题
作为发光材料的新型不对称芘衍生物：合成和光物理学
DOI：
10.1016/j.jlumin.2011.12.010
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发表时间：
2012-04-01
影响因子：
3.6
通讯作者：
Yang, Huai
中科院分区：
文献类型：
--
作者：
Li, Yang;Wang, Dong;Yang, Huai
合成了一系列新颖的含不对称基团的取代芘衍生物，并以较高的产率合成了它们。通过核磁共振氢谱、红外光谱和质谱对不对称化合物的结构进行了表征。通过在芘分子中引入乙炔基官能团，我们得到了高效的蓝光和绿色光发射材料。研究表明，芘衍生物的发光特性在可见光区通过共轭效应的扩展而实现了红移调谐。考察了这些化合物在不同溶剂和不同浓度下的物理化学性质。用循环伏安法和密度泛函理论计算研究了这类新型芘衍生物的电化学性质和几何电子结构。(C)2011爱思唯尔有限公司版权所有。
A series of novel substituted pyrene derivatives with asymmetrical groups have been successfully synthesized in excellent yield. Structures of the asymmetrical compound were fully characterized by H-1-NMR, IR spectroscopy and mass spectrometry. By introducing ethynyl functions to pyrene, we obtained highly efficient blue and green light emitting materials. It has been demonstrated that the emission characteristics of pyrene derivatives have been bathochromatically tuned in the visible region by extending the it-conjugation. The photophysical properties of these compounds were carefully examined in different organic solvents and different concentrations. The electrochemical properties and geometrical electronic structures of the new pyrene derivatives have been investigated by cyclic voltammograms and density functional theory (DFT) calculations. (C) 2011 Elsevier B.V. All rights reserved.