【摘要】 由苯并噻唑基及苯并咪唑基取代的吡唑林类化合物是一类新型荧光化合物。此类荧光化合物可用于多种领域 ,但一直发展较缓慢。依据Schellhammer经验中化学结构与荧光性关系 ,在吡唑林的 1 位引入了苯并噻唑基或苯并咪唑基 ,3 位引入苯基衍生物 ,使其具有荧光性 ,5 位引入苯基作为助色团 ,可使荧光谱红移 ,增加荧光性。作者设计出新型荧光化合物的结构式 ,新合成了两种苯并咪唑及苯并噻唑吡唑林荧光化合物 ,用元素分析确定其结构。两种化合物具有较好的荧光性 ,荧光发射波长处在蓝绿光的范围内。经红外光谱分析 ,找出由苯并噻唑基或苯并咪唑基取代的吡唑林类化合物具有的典型特征吸收峰 ,可由此作为基准 ,推断化合物的结构。两种化合物的合成与光谱分析研究可为吡唑林类荧光化合物的研究开拓新途径。更多还原

【Abstract】 Benzothiazole compounds with byrazoline group or benximidazole group are new fluorescent compounds. The fluorescent compounds have been used in many fields, but their development has beeo slow. According to Schellhammer theory on the relation between chemical structure and fluorescent quality, the authors designed now fluorescent compounds with benximidazole group or the byrazoline group in the 1-benzothiazole and with biphenyl in the 3,5-benzothiazole, and their possess fluorescent nature. Two new benximidazole and benzothiazole fluorescent compounds were synthesized. All these compounds were characterized by elemental analysis and infrared spectroscopy. The excitation wavelength of the two compounds is about 441-446 nm. The fluorescence spectra show that the compounds have good blue and green fluorescence. The characteristic peaks of the absorption spectra of these compounds were found by IR spectral analysis, which can be used to deduce the structures of chemical compounds.更多还原