徐州工程学院学报（自然科学版）
徐州工程學院學報（自然科學版）
서주공정학원학보（자연과학판）
JOURNAL OF XUZHOU INSTITUTE OF TECHNOLOGY(NATURAL SCIENCES EDITION)
2015年
2期
38-45
,共8页
荧光光谱%牛血清白蛋白%Eu和Tb配合物
熒光光譜%牛血清白蛋白%Eu和Tb配閤物
형광광보%우혈청백단백%Eu화Tb배합물
luminescence spectra%BSA%Eu(Ⅲ)and Tb(Ⅲ)complexes
合成并表征1种新型配体及配合物Na2 EuLCl5·4H2 O和Na2 TbLCl5·4H2 O 。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。
閤成併錶徵1種新型配體及配閤物Na2 EuLCl5·4H2 O和Na2 TbLCl5·4H2 O 。研究結果錶明這2種配閤物有較高的熱穩定性，配體L性能優良。紫外可見吸收和Stern‐Volmer分析顯示牛血清白蛋白熒光的猝滅機製為靜態猝滅。通過Van＇t Hoff方程計算齣鍵閤常數和鍵閤位點數，併錶明範德華力和氫鍵是BSA‐complex形成的主要動力。
합성병표정1충신형배체급배합물Na2 EuLCl5·4H2 O화Na2 TbLCl5·4H2 O 。연구결과표명저2충배합물유교고적열은정성，배체L성능우량。자외가견흡수화Stern‐Volmer분석현시우혈청백단백형광적졸멸궤제위정태졸멸。통과Van＇t Hoff방정계산출건합상수화건합위점수，병표명범덕화력화경건시BSA‐complex형성적주요동력。
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'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 .
