将二水合氯化铜(II)和金刚烷胺与5-卤代水杨醛的配体在无水甲醇中的混合物生成两种新型络合物C 34 H 38 Cl 2 CuN 2 O 2(I)和C 34 H 38 Br 2 CuN 2 O 2(二)。配合物的特征在于熔点,元素分析,摩尔电导,IR,UV-Vis和单晶X射线衍射(CIF文件编号1435429(I),1435430(II))。X射线单晶衍射分析表明,两种配合物均在单斜晶系P 2 1 / c空间群中结晶。每个不对称单元由两个单核铜(II)配合物分子组成,每个配合物分子包括一个铜(II)原子和两个相应的去质子化的配体。中心的铜(II)原子通过来自相应席夫碱配体的两个氮原子和两个氧原子进行四配位,形成扭曲的四面体几何形状。通过循环伏安法研究了配合物的电化学性能。
将二水合氯化铜(II)和金刚烷胺与5-卤代水杨醛的配体在无水甲醇中的混合物生成两种新型络合物C 34 H 38 Cl 2 CuN 2 O 2(I)和C 34 H 38 Br 2 CuN 2 O 2(二)。配合物的特征在于熔点,元素分析,摩尔电导,IR,UV-Vis和单晶X射线衍射(CIF文件编号1435429(I),1435430(II))。X射线单晶衍射分析表明,两种配合物均在单斜晶系P 2 1 / c空间群中结晶。每个不对称单元由两个单核铜(II)配合物分子组成,每个配合物分子包括一个铜(II)原子和两个相应的去质子化的配体。中心的铜(II)原子通过来自相应席夫碱配体的两个氮原子和两个氧原子进行四配位,形成扭曲的四面体几何形状。通过循环伏安法研究了配合物的电化学性能。
Spectroscopic analyses on interaction of Amantadine-Salicylaldehyde, Amantadine-5-Chloro-Salicylaldehyde and Amantadine-o-Vanillin Schiff-Bases with bovine serum albumin (BSA)
作者:Zhiqiu Wang、Jingqun Gao、Jun Wang、Xudong Jin、Mingming Zou、Kai Li、Pingli Kang
DOI:10.1016/j.saa.2011.08.076
日期:2011.12
In this work, three Tricyclo [3.3.1.1(3,7)] decane-1-amine (Amantadine) Schiff-Bases, Amantadine-Salicylaldehyde (AS), Amantadine-5-Chloro-Salicylaldehyde (AS-5-C) and Amantadine-o-Vanillin (AS-o-V), were synthesized by direct heating reflux method in ethanol solution and characterized by infrared spectrum and elementary analysis. Fluorescence quenching was used to study the interaction of these Amantadine Schiff-Bases (AS, AS-5-C and AS-o-V) with bovine serum albumin (BSA). According to fluorescence quenching calculations the bimolecular quenching constant (K-q), apparent quenching constant (K-SV), effective binding constant (K-A) and corresponding dissociation constant (K-D), binding site number (n) and binding distance (r) were obtained. The results show that these Amantadine Schiff-Bases can obviously bind to BSA molecules and the binding strength order is AS < AS-5-C= AS-o-V. Synchronous fluorescence spectroscopy reveals that these Amantadine Schiff-Bases adopt different way to bind with BSA molecules. That is, the AS and AS-5-C are accessibility to tryptophan (Trp) residues more than the tyrosine (Tyr) residues, while the AS-o-V is equally close to the Tyr and Trp residues. (C) 2011 Elsevier B.V. All rights reserved.