Palladium(II) complexes of tridentate bis(benzazole) ligands: Structural, substitution kinetics, DNA interactions and cytotoxicity studies
作者:Reinner O. Omondi、Rajesh Bellam、Stephen O. Ojwach、Deogratius Jaganyi、Amos A. Fatokun
DOI:10.1016/j.jinorgbio.2020.111156
日期:2020.9
Pd(II) complexes, [Pd(L1)Cl]BF4, PdL1; [Pd(L2)Cl]BF4, PdL2; [Pd(L3)Cl]BF4, PdL3; respectively, while reaction of bis[(1H-benzimidazol-2-yl)methyl]amine (L4) with [Pd(NCMe)2Cl2] afforded complex [Pd(L4)Cl]Cl, PdL4. Characterisation of the complexes was accomplished using NMR, IR, MS, elemental analyses and single crystal X-ray crystallography. Ligand substitution kinetics of these complexes by biological
2,6-双(苯并咪唑-2-基)吡啶(L 1),2,6-双(苯并恶唑-2-基)吡啶(L 2)和2,6-双(苯并噻唑-2-基)的反应)吡啶(L 3)与[Pd(NCMe)2 Cl 2 ]在NaBF 4存在下得到相应的Pd(II)配合物,[Pd(L 1)Cl] BF 4,PdL 1;[Pd(L 2)Cl] BF 4,PdL 2;[Pd(L 3)Cl] BF 4,PdL 3; 分别地,当双[(1H-苯并咪唑-2-基)甲基]胺(L 4)与[Pd(NCMe)2 Cl 2 ]反应得到配合物[Pd(L 4)Cl] Cl,PdL 4。使用NMR,IR,MS,元素分析和单晶X射线晶体学对复合物进行表征。在拟一级反应条件下研究了生物亲核试剂硫脲(Tu),L-蛋氨酸(L-Met)和鸟苷5'-二磷酸二钠盐(5-GMP)对这些配合物的配体取代动力学。配合物的反应性依次降低:PdL 1 > PdL 2 > PdL 3