当前位置: X-MOL 学术Spectrochim. Acta. A Mol. Biomol. Spectrosc. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
A novel fluorophore with multichromic effect and its application in LED light for the volatile vapor detection
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy ( IF 4.3 ) Pub Date : 2023-05-05 , DOI: 10.1016/j.saa.2023.122813
Kaliyan Prabakaran 1 , Ramalingam Manivannan 1 , Young-A Son 1
Affiliation  

Successfully designed and synthesized diaryl maleimide DAM, and their structure was confirmed by mass spectroscopy and NMR techniques. They investigated their photophysical properties, such as solvatochromic and the aggregation effect of AIE/ACQ on the water/DMF ratio, and other studies of solid-state mechanofluorochromic, such as grinding, exposure to solvent fumes, hydrostatic pressures, and vapochromic. Interestingly, the solvent methods gave very similar results in both the dissolving phase and the vapor phase. For the solution state from hexane to CH2Cl2, a greenish-yellow to orange emission was observed. From hexane to dichloromethane, naked-eye colorimetric changes (from yellow to orange in a solid state) were observed. Very interesting results were obtained, the yellow solid was ground for 1 min, it turned into an orange color, and its wavelengths were red-shifted in both absorption and emission. Subsequently, the ground sample was exposed to diethyl ether vapors, which returned to the original green-yellow emission and absorption. The applied hydrostatic pressures (0–4Mpa) in DAM gave excellent red-shifted emission, and then their hydrostatic pressures were increased to 4–16 Mpa, and the red-shifted emission gradually decreased.



中文翻译:

一种具有多色效应的新型荧光团及其在用于挥发性蒸汽检测的 LED 灯中的应用

成功设计合成了二芳基马来酰亚胺DAM,并通过质谱和核磁共振技术确证了其结构。他们研究了它们的光物理特性,例如溶剂化变色和 AIE/ACQ 对水/DMF 比率的聚集效应,以及固态机械荧光变色的其他研究,例如研磨、暴露于溶剂烟雾、静水压力和吸积。有趣的是,溶剂法在溶解相和气相中给出了非常相似的结果。对于己烷到CH 2 Cl 2 的溶液状态,观察到黄绿色到橙色的发射。从己烷到二氯甲烷,观察到肉眼比色变化(固态从黄色到橙色)。获得了非常有趣的结果,将黄色固体研磨 1 分钟,它变成橙色,并且其波长在吸收和发射方面都发生了红移。随后,将研磨后的样品暴露在乙醚蒸汽中,恢复到原来的黄绿色发射和吸收。在DAM中施加的静水压力 (0-4Mpa)产生出色的红移发射,然后将它们的静水压力增加到 4-16 Mpa,红移发射逐渐降低。

更新日期:2023-05-05
down
wechat
bug