Synthesis of quinoline derivatives containing pyrazole group and investigation of their crystal structure and spectroscopic properties in relation to acidity and alkalinity of mediums
作者:Tiegang Ren、Jie Wang、Guihui Li、Hongbin Cheng、Yongzhe Li
DOI:10.1016/j.saa.2014.03.018
日期:2014.8
Two series of quinoline derivatives containing pyrazole group were synthesized and characterized by means of 1H NMR, FT-IR, MS, elemental analysis and X-ray single crystal diffraction, and their UV–vis absorption behavior and fluorescence properties were also measured. Moreover, the effects of acetic acid and triethylamine on the spectroscopic properties of synthesized products were examined with compounds
合成了两个含吡唑基的喹啉衍生物,并通过1 H NMR,FT-IR,MS,元素分析和X射线单晶衍射对其进行了表征,并测量了它们的紫外可见吸收性能和荧光性质。此外,用化合物3a和5a检验了乙酸和三乙胺对合成产物光谱性质的影响作为例子。已经发现,所有合成的喹啉衍生物在303nm处显示最大吸收峰并且在445nm附近显示发射峰。此外,乙酸和三乙胺均可改变介质的酸度,从而影响合成产品的紫外可见吸收光谱和荧光光谱。此外,理论研究表明,喹啉环的H +和N原子的整合有利于在乙酸存在下形成新产物,这种情况下获得的产物在400 nm处显示出新的UV-vis吸收峰。