稀土二膦酸配合物的合成、结构和荧光性质(英文)  

Syntheses, Crystal Structure and Luminescent Properties of Lanthanide Diphosphonates

作　　者：张载超[1] 鲍松松[1] 郑丽敏[1] 

机构地区：[1]南京大学化学化工学院,配位化学国家重点实验室,南京210093

出　　处：《无机化学学报》2007年第11期1851-1856,共6页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金资助项目(No.20325103)。

摘　　要：合成并表征了3个同构的稀土二膦酸化合物Ln(hpyedpH2)(hpyedpH3)·2H2O[Ln=Gd(1),Eu(2),Tb(3);hpyedpH4=1-hydroxy-2-(3-pyridyl)ethylidene-1,1-diphosphonic acid,C7H11NO7P2],测定了化合物1的单晶结构。发现它们具有链状结构,其中Ln通过3个或4个O-P-O基团交替连接,链与链之间存在氢键和π-π堆积作用。探讨了化合物2和3的荧光性质。Three isomorphous complexes Ln（hpyedpH2）（hpyedpH3）·2H2O [Ln=Gd （1）, Eu （2）, Tb （3）], where hpyedpH4 is 1-hydroxy-2-（3-pyridyl）ethylidene-1,1-diphosphonic acid （C7H11NO7P2）, have been prepared under hydrothermal conditions. All show a one-dimensional linear chain structure in which the Ln atoms are alternatively bridged by four and three O-P-O units. The chains are held together through extensive hydrogen bond interactions and π-π contacts between the pyridyl groups, hence generating a three-dimensional network. The luminescent properties of complexes 2 and 3 are investigated. CCDC： 642506.

关 键 词：稀土 二膦酸 链状结构 荧光性质 

分 类 号：O614.339[理学—无机化学] O614.338[理学—化学]