Syntheses, Structures, and Biological Activities of Pd(II) and Pt(II) Complexes with some 1-picolinoyl-4-substituted Thiosemicarbazides
作者:Hung Huy Nguyen、Quang Trung Pham、Quan Manh Phung、Canh Dinh Le、Thu Thuy Pham、Thi Ngoc Oanh Pham、Chien Thang Pham
DOI:10.1016/j.molstruc.2022.133871
日期:2022.12
thiosemicarbazides H2L, namely H2LEt, H2LCy, and H2LPh, with equimolar amounts of common Pd(II) or Pt(II) complexes [M(PPh3)2Cl2] (M = Pd, Pt) bring about the formation of stable heteroleptic complexes with the compositions [M(L)(PPh3)] (M = Pd, Pt). Their molecular structures show mononuclear square planar complexes in which the acyl thiosemicarbazides are doubly deprotonated and serve as tridentate ligands
三种 1-picolinoyl-4-取代氨基硫脲H 2 L,即H 2 L Et、H 2 L Cy和H 2 L Ph与等摩尔量的常见 Pd(II) 或 Pt(II) 配合物 [M( PPh 3 ) 2 Cl 2 ] (M = Pd, Pt) 与组成 [M( L )(PPh 3 )形成稳定的杂配络合物)] (M = Pd, Pt)。它们的分子结构显示出单核方形平面配合物,其中酰基氨基硫脲被双重去质子化,并作为三齿配体通过 ( N吡啶, N 1 , S ) 供体组与金属离子中心键合。有机配体H 2 L Et和H 2 L Ph以及它们的所有金属配合物对所检测的微生物菌株仅表现出微弱的抑制作用,而H 2 L Cy的金属配合物对枯草芽孢杆菌和发酵乳杆菌表现出良好的抑制作用MIC值低于氨苄青霉素。此外,针对癌细胞系 MCF7 和 HepG2 测试了H 2 L和复合物的体外细胞毒性。对于两种细胞系,有机配体表现出适度的抗增殖作用,活性H