C_(24)H_(16)N_7O_9Sm的晶体合成、结构与性质研究  

Synthesis,structure and properties of Sm(phen)_2(NO_3)_3

作　　者：严回[1] 孙晓刚[2] 王栋[2] 吕萍[2] 郑长征[2] 

机构地区：[1]蚌埠玻璃工业设计研究院,安徽蚌埠233010 [2]西安工程大学环境与化学工程学院,陕西西安710048

出　　处：《江苏师范大学学报（自然科学版）》2013年第3期42-45,共4页Journal of Jiangsu Normal University：Natural Science Edition

基　　金：陕西省自然科学基金资助项目(2009JM2012)

摘　　要：用水热合成法合成了配合物C24H16N7O9Sm,并通过X单晶衍射测定了晶体结构.该配合物是以单核零维分子形式存在,中心离子Sm3+分别与邻菲啰啉上的氮原子和硝酸根上的氧原子以双齿螯合方式配位,配位数是10.通过红外、紫外、荧光光谱分析及热重分析,表明标题配合物具有良好的热稳定性,在292cm-1处有一强的紫外吸收峰,在634nm处的荧光发射峰强度最大,为Sm3+的4 G5/2→6 H9/2的电荷跃迁的特征发射光谱.The complex was synthesized by hydrothermal,and its crystal structure was determined by X-ray diffrac- tion method. It is mononuclear with zero-dimensional molecular form of Sma＋. The central Sm3＋ is connected with four nitrogen atoms of two phen molecules and six oxygen atoms of three nitrate anions, bidentate chelating mode re- spectively with the coordination number is 10. The complex was characterized by IR, UV, fluorescence analysis and thermogravimetric analysis. The results indicate that the complex has fine thermal stability,a strong UV absorption peak of 292 cm land the emission peak of 634 nm is the most intensive,which lies in the transitions from 4Gs/z to 6 H9/2 of Sm3＋ charge transfer.

关 键 词：稀土 配合物 晶体结构 X射线衍射 热重分析 荧光 

分 类 号：O614.33[理学—无机化学] O614.4[理学—化学]