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Triphenylamine-based luminophores with different side and central aromatic blocks: Synthesis, thermal, photophysical and photochemical properties
Dyes and Pigments ( IF 4.5 ) Pub Date : 2020-03-27 , DOI: 10.1016/j.dyepig.2020.108397
Yuriy N. Luponosov , Alexander N. Solodukhin , Dmitry O. Balakirev , Nikolay M. Surin , Eugenia A. Svidchenko , Sergey A. Pisarev , Yuriy V. Fedorov , Sergei A. Ponomarenko

In this work, a series of novel luminescent molecules of butterfly-like architecture based on TPA fragments with different central and side aromatic blocks were designed and synthesized. Various properties of the molecules were studied by differential scanning calorimetry, thermogravimetric analysis, UV–Vis optical spectroscopy and compared within this series as well as to their analogs having terminal trimethylsilyl moieties instead of diphenylamine ones. The molecules reported are promising luminescent materials, which combine high thermal stability, good solubility and large molar extinction coefficients with high photoluminescence quantum yields for emission in the green and red spectral regions. The experimental and theoretical investigations reported give more insight to the structure – property correlations for the TPA-based luminophores, as well as to their photostability and peculiarities of the conjugation through triphenylamine units between the central and the side fragments.



中文翻译:

具有不同侧和中心芳族嵌段的三苯胺基发光体:合成,热,光物理和光化学性质

在这项工作中,设计并合成了一系列基于具有不同中心和侧面芳族嵌段的TPA片段的蝴蝶状结构的新型发光分子。通过差示扫描量热法,热重分析,UV-Vis光谱学研究了分子的各种性质,并在该系列中以及与具有末端三甲基甲硅烷基部分而不是二苯胺的类似物进行了比较。报告的分子是有前途的发光材料,其结合了高的热稳定性,良好的溶解性和大的摩尔消光系数以及高的光致发光量子产率,可在绿色和红色光谱区域内发射。报告的实验和理论研究为基于TPA的发光体的结构-性质相关性提供了更多信息,

更新日期:2020-03-27
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