Syntheses, Structures, and Bioactivity Evaluation of some Transition Metal Complexes with Aroylbis(<i>N</i>,<i>N</i>‐diethylthioureas) Derived from Natural Compounds
作者:Chien Thang Pham、Thu Thuy Pham、Viet Ha Nguyen、Thi Nguyet Trieu、Hung Huy Nguyen
DOI:10.1002/zaac.202100063
日期:2021.7.13
the metal ions oxidized presumably by atmospheric dioxygen. X-ray crystallography and spectroscopic characterization reveal a cis square-planar coordination in the bis-complexes and facial octahedral geometry in the tris-complexes. In all of metal complexes, the deprotonated organic compounds (L1}− and L2}−) serve as (S,O)-bidentate ligands. The ligand HL1 and its Ni(II) and Cu(II) complexes exhibit
从没食子酸衍生的两种新型benzoylthioureas,(三ø -乙酰基)galloyl- Ñ,Ñ -diethylthiourea HL 1,和肉桂酸,肉桂酰Ñ,Ñ -diethylthiourea HL 2已被成功地制备和表征通过元素分析的手段,红外、核磁共振、高分辨率 MS 和 X 射线晶体学。有机配体在MeOH中与Ni(AcO) 2和Cu(AcO) 2 反应形成双配合物,其组成为[M(L) 2 ] (M=Ni 2+ , Cu 2+ ; L=L 1 , L 2)。然而,与 Co(AcO) 2 的类似反应会产生 Co(III)三复合物 [Co(L) 3 ] (L=L 1 , L 2 ),其中金属离子可能被大气分子氧氧化。X 射线晶体学和光谱表征揭示了双复合物中的顺方平面配位和三复合物中的面部八面体几何。在所有金属络合物中,去质子化的有机化合物(L 1 } -和 L 2 } -)充当