Synthesis, photophysical and solvatochromic properties of diacetoxyboron complexes with curcumin derivatives
作者:Heng Lyu、Dan Wang、Lian Cai、Dun-Jia Wang、Xiao-Ming Li
DOI:10.1016/j.saa.2019.05.031
日期:2019.9
spectroscopy in different solvents and solidstate. It was observed that their fluorescence spectra yielded a blue to yellow-green emission in solution and emitted a yellow to red emission in solidstate. Especially, the complex 3b displayed the strongest emission and the highest quantum efficiency (Φu = 0.98) in toluene among these complexes. The CIE coordinate of the complex 3b in solidstate was positioned
设计并合成了五个新的β-二酮结合姜黄素部分的二乙酰氧基硼配合物。通过紫外可见吸收和荧光光谱研究了它们在不同溶剂和固态下的光物理行为。观察到它们的荧光光谱在溶液中产生蓝至黄绿色发射,而在固态下发射黄至红色发射。尤其是,该复合物3b中显示的最强发射和最高量子效率(Φ û = 0.98)在这些配合物中的甲苯。复杂3b的CIE坐标处于固态时,其处于色度图的理想红色区域。这些配合物的最大发射显示出大的波长偏移,并且斯托克斯偏移随着溶剂极性的增加而增加。利用Lippert-Mataga方程也可以估算出基态和激发态之间的偶极矩差。同时,通过循环伏安法计算了它们的HOMO,LUMO能级和能带隙。
Pabon,H.J.J., Recueil des Travaux Chimiques des Pays-Bas, 1964, vol. 83, p. 379 - 386
作者:Pabon,H.J.J.
DOI:——
日期:——
CURCUMINOIDS, ANALOGS THEREOF, AND METHODS OF MAKING THE SAME
申请人:Stepanova Valeria A.
公开号:US20230035796A1
公开(公告)日:2023-02-02
The present invention provides compounds including curcuminoids and analogs thereof, as well as methods of making the same. In various aspects, the method of making the compounds is free of added solvents.
Synthesis and photophysical properties of ditrifluoroacetoxyboron complexes with curcumin analogues
作者:Lian Cai、Hengyi Du、Dan Wang、Heng Lyu、Dunjia Wang
DOI:10.1016/j.saa.2020.119297
日期:2021.3
Especially, complex 2c displayed the strongest emission intensity, the highest quantum yield in solution and the longest fluorescence lifetime in powder state in these complexes. In addtion, the emission bathochromic shifts of these complexes as a function of the solvent polarity parameter ET(30) were investigated by Lippert–Mataga approximation. It was observed that these complexes exhibited the