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机构地区:[1]陕西省大分子科学重点实验室陕西师范大学化学与材料科学学院,陕西西安710062
出 处:《陕西师范大学学报(自然科学版)》2007年第3期69-73,共5页Journal of Shaanxi Normal University:Natural Science Edition
基 金:陕西省自然科学基金资助项目(98H02)
摘 要:采用醛与有机胺缩合反应合成了19种希夫碱及其5种配合物,并对其进行了荧光光谱研究.结果发现,单希夫碱具有激发光谱与荧光光谱对称的特点,而双希夫碱相应的光谱则对称性较差.同时发现双希夫碱配合物其激发光谱与荧光光光谱具有完美的对称性.上述极富规律的荧光现象对于希夫碱及配合物表征具有一定借鉴意义.19 kinds of Schiff-bases and 5 kinds of their complexes have been synthesized, and their fluorescence spectra were determined. Regularity in the spectra has been found. For mono-Schiff base, there is the symmetry in spectra between the exited spectrum and emission spectrum. However, this symmetry in the spectra for bis-Schiff base is poor. For both complexes of mono-Schiff base and bis- Schiff base, the symmetry of spectra between the exited spectrum and emission spectrum is perfect. These phenomena are attributed to the degree of molecular conjugation, which have been explained in this paper.
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