We have reported the synthesis of a novel salen ligand and its mononuclear Pdâsalen complexes derived from 2-[2-hydroxy-3-[(E)-(2-hydroxyphenyl)methylidene]amino}propyl)imino]methyl}phenol. The newly synthesized and isolated Pd(II) complexes have been identified and fully characterized by various physico-chemical studies viz., elemental analyses, IR, UV-Vis, 1H, 13C NMR spectroscopy, electron spray ionization mass spectrometry (ESI-MS) and TGA/DTA studies. The molecular structure of the salen ligand has been ascertained by single-crystal XRD and it is coordinated to Pd(II) ion through two nitrogen and two oxygen atoms. The UV-Vis data clearly suggest a square-planar environment around both the Pd(II) ions. The DNA binding studies of the synthesized compounds has been investigated by electron spectroscopy and fluorescence measurements. The results suggest that Pd(II) complexes bind to DNA strongly as compared to the free ligand. The free salen ligand and its Pd(II) complexes have also been tested against human hepatoma cancer cell line (Huh7) and results manifested exceptional anti-proliferative effects of the Pd(II) complexes. The anti-proliferative activity of Pd(II) complexes has been modulated by specific regulatory genes.
我们报道了一种新型salen
配体的合成及其单核Pd-salen复合物,这些复合物来源于2-[2-羟基-3-[(E)-(2-羟基苯基)亚甲基]
氨基}丙基)亚
氨基]甲基}
酚。新合成并分离的Pd(II)复合物已通过多种物理
化学研究方法(如元素分析、红外光谱、紫外-可见光谱、1H和13C核磁共振波谱、电喷雾电离质谱(ESI-MS)和热重/差示扫描量热法(TGA/DTA))进行鉴定和全面表征。通过单晶X射线衍射(XRD)确认了salen
配体的分子结构,它通过两个氮原子和两个氧原子与Pd(II)离子配位。紫外-可见光谱数据明确表明,两个Pd(II)离子周围呈现方形平面环境。合成化合物的DNA结合研究通过电子光谱和荧光测量进行。结果表明,与游离
配体相比,Pd(II)复合物对DNA的结合能力更强。游离salen
配体及其Pd(II)复合物亦对人肝癌
细胞系(Huh7)进行测试,结果显示Pd(II)复合物表现出卓越的抗增殖效果。Pd(II)复合物的抗增殖活性受到特定调控
基因的调节。