稀土与苯甲酰丙酮和二安替吡啉甲烷配合物的合成及性质  

Synthesis and Properties of the Coordination Compounds of Rare Earth with Benzoylacetone and Diatipyrylmetane

作　　者：齐玉兰[1] 闫兰[1] 杨汝栋[1] 杨立[1] 

机构地区：[1]兰州大学化学系,兰州730000

出　　处：《兰州大学学报（自然科学版）》1993年第3期170-174,共5页Journal of Lanzhou University(Natural Sciences)

摘　　要：本文在乙醇体系中合成了稀土三价离子(Ce除外)与苯甲酰丙酮(简作B)及二安替吡啉甲烷(简作D)的三元配合物—REB_3D。研究了它们的UV,IR光谱,荧光,热谱,核磁共振位移性能及其它性质。观察到Sm(Ⅲ),Eu(Ⅲ)及Tb(Ⅲ)的相应配合物在紫外光激发下,呈现出各自的特征荧光:SmB_3D—橙黄色(较弱),EuB_3D—鲜红色(强),TbB_3D—绿(弱)。核磁共振位移性能的研究结果表明:Pr(Ⅲ),Eu(Ⅲ)和Yb(Ⅲ)的三元配合物均有较明显的位移性能,PrB_3D导致向高场位移,而EuB_3D及YbB_3D则向低场位移,其中YbB_3D的位移效果最好。REB_3D不溶于水,乙醚及苯,易溶于乙醇,氯仿。在甲醇体系中的摩尔电导证明它们均为非电介质。差热分析证明配合物均无熔点。In this paper, we report the synthesis, characterization and properties of coordination compounds resulting from benzoylacetone (B) and diantipyrylmethane (D) with rare earth elements (except for Ce) in the alcohol system. These new compounds were characterized by elemental analyses, IR, UV, fluorimetric spectra, TG and DTA meth-ods. The data indicate all the new compounds are composed of REB_3D,and have no melt-ing points.The Study on the NMR shifting effects indicates that PrB_3D makes shift upfield whereas EuB_3D and TbB_3D downfield. YnB_3D results in the most prominent downfield NMR shifting effect. SmB_3D,EuB_3D and TbB_3D exhibit fluorescence.

关 键 词：苯甲酰丙酮 稀土族 络合物 

分 类 号：O614.33[理学—无机化学]