Bis(4-(4-nitrobenzyl)pyridine)dichloropalladium(II), [PdCl$_2}$L$^1}$$_2}$], bis(2-amino-5-bromopyridine)dichloropalladium(II), [PdCl$_2}$L$^2}$$_2}$], bis(2,4-dimethylpyridine)dichloropalladium(II), [PdCl$_2}$L$^3}$$_2}$], bis(3,4-dimethylpyridine)dichloropalladium(II), [PdCl$_2}$L$^4}$$_2}$] were prepared. The spectroscopic techniques (FT-IR and $^1}$H-NMR, $^13}$C-NMR) were used to characterize the compounds. Theoretical calculations were used to validate the experimental results. The LanL2DZ-based DFT/B3LYP method was used to define the most stable possible molecular structure for the complexes. Potential energy distribution analysis was performed to determine the theoretical vibration bands of the complexes. Molecular electrostatic potential maps, boundary molecular orbitals and Mulliken charge distribution were used to determine the active sites of the molecules. The interaction mechanisms between the complexes and liver cancer protein were investigated via molecular docking. The study on the antiproliferative effects of these complexes on hepatocellular carcinoma cells (HepG2) showed that they are potent candidates for use against this liver cancer cell line.
双(
4-(4-硝基苄基)吡啶)二
氯化钯(II),[PdCl$_2}$L$^1}$_2}$],双(2-
氨基-5-
溴吡啶)二
氯化钯(II),[PdCl$_2}$L$^2}$_2}$]、制备了双(2,4-二
甲基吡啶)二
氯化钯(II)、[PdCl$_2}$L$^3}$_2}$]、双(3,4-二
甲基吡啶)二
氯化钯(II)、[PdCl$_2}$L$^4}$_2}$]。利用光谱技术(傅立叶变换红外光谱和 $^1}$H-NMR、$^13}$C-NMR)对化合物进行了表征。理论计算用于验证实验结果。使用基于 Lan
L2DZ 的 DFT/B3LYP 方法确定了复合物最稳定的分子结构。通过势能分布分析,确定了复合物的理论振动带。分子静电位图、边界分子轨道和 Mulliken 电荷分布被用来确定分子的活性位点。通过分子对接研究了复合物与肝癌蛋白之间的相互作用机制。关于这些复合物对肝癌细胞(HepG2)的抗增殖作用的研究表明,这些复合物对这种肝癌
细胞系具有很强的抗癌作用。