Spectroscopic Study of the Interaction of Bu_2SnCl_2 with EHPG  

作　　者：Chun Ying WEI Pin YANG 

机构地区：[1]Institute of molecular Science,Shanxi University,Taiyuan 030006

出　　处：《Chinese Chemical Letters》2001年第2期165-166,共2页中国化学快报(英文版)

基　　金：the National Natural Science Foundation of China and Provincial Natural Foundation of Shanxi.

摘　　要：The difference UV spectra and fluorescence of Bu2SnCl2 and ethylene bis (o-hydroxyphenylglycine) (EHPG), a ligand used previously for mimicking Fe3+ binding of transferrins, was first studied in Tris-HCl buffer solution (pH7.4). Difference UV spectral studies show that the binding of Bu2SnCl2 to EPHG takes twelve hours and gives rise to 1:1 complex. The binding constant for Bu2SnCl2-EHPG complex is estimated to be 1.65 X 10(3) M-1. Fluorescence studies also show an increase in intensity of EHPG after interaction with Bu2SnCl2.The difference UV spectra and fluorescence of Bu2SnCl2 and ethylene bis (o-hydroxyphenylglycine) (EHPG), a ligand used previously for mimicking Fe3+ binding of transferrins, was first studied in Tris-HCl buffer solution (pH7.4). Difference UV spectral studies show that the binding of Bu2SnCl2 to EPHG takes twelve hours and gives rise to 1:1 complex. The binding constant for Bu2SnCl2-EHPG complex is estimated to be 1.65 X 10(3) M-1. Fluorescence studies also show an increase in intensity of EHPG after interaction with Bu2SnCl2.

关 键 词：EHPG SPECTROSCOPY TRANSFERRIN 

分 类 号：O657.3[理学—分析化学]