中文摘要：

合成并表征1种新型配体及配合物Na2EuLCl5·4H2O和Na2TbLCl5·4H2O.研究结果表明这2种配合物有较高的热稳定性,配体L性能优良.紫外可见吸收和Stern-Volmer分析显示牛血清白蛋白荧光的猝灭机制为静态猝灭.通过Van＇t Hoff方程计算出键合常数和键合位点数,并表明范德华力和氢键是BSA-complex形成的主要动力.

英文摘要：

A novel ligand （L） and its corresponding complexes Na2 EuLCl5 · 4H2 O and Na2 TbLCl5 · 4H2 O ,were prepared and characterized .The thermogravimetric analysis shows the two complexes have good thermal stabilities with decomposition temperatures 373 and 385 ℃ ,respectively .The luminescence spectra showed that the ligand L was an efficient sensitizer for Eu（Ⅲ）and Tb（Ⅲ）luminescence .The UV‐vis absorbance and the Stern‐Volmer analysis indicate that the main quenching mechanism is a static quenching procedure .The binding constants ,binding site number at different temperatures were calculated by Van＆#39;t Hoff equation ,w hich confirms that the Van der Waals and hydrogen bond interactions are mainly impulse to the formation of complexes BSA‐L coordination compound .