手性树状化合物的配位性质研究(英文)  

Study on the Properties of Chiral Dendrimers With Fluoresce Spectrophotomety*

作　　者：左国防[1] 莫尊理[2] 杨武[2] 高锦章[2] 

机构地区：[1]天水师范学院化学系,甘肃天水741001 [2]西北师范大学化学系,甘肃兰州730070

出　　处：《天水师范学院学报》2001年第5期22-24,共3页Journal of Tianshui Normal University

基　　金：theNationalNaturalScienceFoundationofChina (No :2 9875 0 18)andtheGansuprovinceNaturalScienceFoundation ;Chi na (No :ZS991-A2 5 -0 0 8-Z)

摘　　要：通过使用荧光光谱法 ,研究了新合成的化合物 2 ,6—吡啶二甲酰 (氨基酸 )胺与部分过渡金属离子及稀土离子的配位性质。发现在pH =2 0— 12 0以及溴化十六烷基吡啶存在下 ,该化合物可以和铜离子形成稳定的配合物 ,其最大激发和发射波长分别位于 310nm和 42 0nm ,组成比为 2∶1(铜离子∶配体 )。当铜离子的浓度介于 1 1μg ml— 32 0 μg ml范围时 ,配合物荧光强度与铜离子浓度呈良好的线性关系 ,线性方程为F =0 4 475 7+3 98388CCu2 +(10 - 3 mol L)。通过新化合物与铜离子的配位反应 ,初步考察了新试剂的配位特征。The complexation reaction of pyridine-2,6-dicarboxylic-(L-glutamate ethyl ester)-amide (L) and some transition metal ions or rare earth ions were studied with sqectrofluorimetry.In the pH range of 2.0-12.0 and in the prescence of CPB,copper ion could form a stable complex with L having a mole ratio of 2∶1.The maximum excitation and emission wavelengths were 310nm and 420nm,respectirely.Under selectde experimental condition,the fluorescence intensity was a linear function of the concentration of copper in the range of 1.1μg-32.0μg/ml.The regression equation of the calibration curve is F=0.44757+3.98388C Cu 2+ .Many common roreign ions were tested,and it was found that some mdtal ions interfered the determination of copper ion.

关 键 词：手性树状化合物 荧光光谱法 配位性质 配合物 铜离子 2 6-吡啶二甲酰胺 过渡金属离子 稀土离子 

分 类 号：O614.121[理学—无机化学]