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以α位单取代2,4,5-三苯基吡喃盐和取代伯胺为原料,一步合成出相应的α位单取代吡啶盐.在此基础上研究了α位单取代吡啶盐的光化学反应,成功合成出具有较高共平面结构的菲啶盐.通过测定吡啶盐和菲啶盐的荧光光谱发现,N位苯环上取代基供电性的增强使得吡啶盐荧光发射光谱发生明显的红移,荧光强度减弱,而菲啶盐由于分子共平面性增强极大提高了分子的荧光强度.
The α-position monosubstituted 2,4,5-triphenylpyrylium salt and substituted primary amine were used as the starting materials to synthesize the corresponding α-position monosubstituted pyridinium salts on the basis of which the photochemistry , The phenanthridinium salt with high coplanar structure was synthesized successfully.The fluorescence spectra of pyridine salt and phenanthridine salt were found that the enhancement of the chargeability of the substituents on the N-position benzene ring resulted in obvious red fluorescence emission spectra Shift, the fluorescence intensity weakened, and phenanthridine salt due to the molecular co-planarity greatly enhance the molecular fluorescence intensity.