Photophysical Properties of some 1,3,4-Oxadiazole Derivatives Containing Phenolphtalein, Fluorene and Bisphenol A Units

被引：5
作者：
Homocianu, Mihaela [1 ]
Ipate, Alina M. [1 ]
Hamciuc, Corneliu [1 ]
Airinei, Anton [1 ]
机构：
[1] Petru Poni Inst Macromol Chem, 41A Grigore Ghica Voda Alley, Iasi 700487, Romania
来源：
JOURNAL OF FLUORESCENCE | 2018年 / 28卷 / 05期
关键词：
Emission quantumyields; Light-emitting materials; Optoelectronic applications; Photophysical properties; AROMATIC POLY(1,3,4-OXADIAZOLE-ETHER)S; OPTICAL-PROPERTIES; HUMAN EXPOSURE; POLYMER;
D O I：
10.1007/s10895-018-2285-5
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
The photophysical properties of the three 1,3,4-oxadiazole derivatives containing fluorene (Ox-FL); fluorene and phenolphtaleine (Ox-FL-FF); or fluorene and bisphenol A (Ox-FL-BPA) moieties in the main chain were investigated by the fluorescence and absorption spectroscopy in different solvents and in the solid state. The electronic absorption spectra included a strong absorption band located in the 270-395 nm region, with a maxima around at 302 nm. The fluorescence excitation spectra were also characterized by one broad band, appearing in the wavelength range of 220-340 nm. All samples displayed the emission bands around 356-373 nm and exhibit high quantum yields ranged from 31.61 to 90.77%, in chloroform solution. The sensitivity of the emission spectra on medium characteristics (polarity, acidity and basicity) were evaluated by using the Catalan solvent scale and the fluorescence titration with a dilute acid solution.
引用
收藏
页码：1217 / 1224
页数：8
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