Syntheses and structural characterization of divalent metal complexes (Co, Ni, Pd and Zn) of sterically hindered thiourea ligand and a theoretical insight of their interaction with SARS-CoV-2 enzyme
作者:Awal Noor、Sadaf Qayyum、Zafar Ali、Niaz Muhammad
DOI:10.1016/j.molstruc.2022.134442
日期:2023.2
[L2ZnI2] (4.2CH3CN) complexes. Compound 1, 2 and 4.2CH3CN are tetrahedral whereas Pd complexes (3a and 3b) are square planar. In solution, palladium complexes are dominated by cis-isomers. Structural characterization shows inter- and intramolecular hydrogen bonding. Hirshfeld surface and fingerprint plots indicated significant intermolecular interactions in the crystal network. Molecular docking analysis
将两当量的位阻 1,3-双(2,6-二乙基苯基)硫脲配体 (L) 与 CoCl 2、NiBr 2、PdX 2 (X = Cl; Br) 和 ZnI 2在乙腈中反应,得到相应的大体积硫脲配体稳定的四个配位单体 [L 2 CoCl 2 ] ( 1 )、[L 2 NiBr 2 ] ( 2 )、[L 2 PdX 2 ] ( 3a : X = Cl; 3b : X = Br) 和 [L 2 ZnI 2 ] ( 4.2CH 3 CN ) 络合物。化合物1, 2和4.2CH 3 CN是四面体,而 Pd 配合物(3a和3b)是方形平面。在溶液中,钯配合物以顺式异构体为主。结构表征显示分子间和分子内氢键。Hirshfeld 表面和指纹图表明晶体网络中存在显着的分子间相互作用。分子对接分析显示,与游离配体相比,合成复合物的 SARS-CoV-2 酶相互作用能力相对较高。所有化合物都通过元素分析、核磁共振光谱和单晶