论文部分内容阅读
由取代香豆素-3-甲酰氯和5-氯-2-氨基苯并噻唑类化合物合成了4种N-(5-氯)苯并噻唑基香豆素酰胺类化合物Ⅲa～Ⅲd,经HRMS、IR、1H NMR对化合物结构进行了表征,考察了其紫外光谱,得到了各化合物的最大吸收波长(λmax)、摩尔吸收系数(εmax)、线性回归方程、线性范围及相关系数(R2),初步分析了紫外光谱与分子结构的关系。对所得产物的荧光分析发现,4种产物均有较强的荧光性能,其中Ⅲc的荧光强度最大;对产物稀溶液中荧光发射光谱强度和溶液浓度的关系进行了讨论,考察了金属离子对化合物荧光光谱的影响。
Four kinds of N- (5-chloro) benzothiazolyl coumarin amides Ⅲa ~ Ⅲd were synthesized from substituted coumarin-3-formyl chlorides and 5-chloro-2-aminobenzothiazoles. The structures of the compounds were characterized by IR, 1H NMR and their UV spectra. The maximum absorption wavelength (λmax), molar absorption coefficient (εmax), linear regression equation, linear range and correlation coefficient (R2) Preliminary analysis of the relationship between UV spectroscopy and molecular structure. Fluorescence analysis of the obtained product showed that the four products have strong fluorescence properties, of which the fluorescence intensity of Ⅲc is the largest; the relationship between the fluorescence emission intensity and the concentration of the solution in dilute solution is discussed, Effects of fluorescence spectra.