锶-钐配合物的合成及光学性能表征

Preparation and properties of rare earth (Sm^(3+) and Sr^(2+))complexes

以丙烯酸甲酯、水杨酸、邻菲罗啉作为配体,锶-钐作为中心离子,合成了锶-钐配合物。采用相同的配体,以纯钐作为中心离子,制备配合物进行对比研究。差热分析显示,Sm-Sr配合物比Sm配合物具有更好的热稳定性。配合物的荧光测试发现,Sm-Sr配合物的特征发射峰位于640 nm附近,而Sm特征发射峰位于610 nm。Sm-Sr配合物的特征发射峰位与植物叶绿素光合作用吸收红光的吻合性更好。锶的掺入,导致Sm-Sr配合物的荧光峰位发生了红移,显示配合物中锶离子对钐离子的发光具有敏化作用。

The complex of rare earth ions （ Sr2＋, Sm3＋） with methyl-acrylate, salicylic acid, and 1,10- phenanthroline was synthesized. The complex of pure Sm3＋ with methyl-acrylate, salicylic acid, and 1,10- phenanthroline was also prepared for comparison. The TGA-DSC tests show the complex of Sm3 ＋ -Sr2 ＋ has better thermal stability than that of Sm3 ＋. Fluorescence spectra of the complex of Sm3＋ locates at 610 nm, however, that of Sm3＋ -Sr2＋ shifts to 640 nm, which is most closed to the photosynthesis spectra of vegeta- bles. The red shift occurred means that fluorescence of the complex of Sm3 ＋ was strongly sensitized by Sy2 ＋.