Synthesis, structures, and spectral properties of biomimetic azomethine metal chelates with chromophores CuN2S2, CuN2O2, and CuN2Se2. Crystal structure of bis[4-(benzyl)aldimino-3-methyl-1-phenyl-5-pyrazolothiolato]copper(II)
作者:A. I. Uraev、A. L. Nivorozhkin、G. I. Bondarenko、K. A. Lysenko、O. Yu. Korshunov、V. G. Vlasenko、A. T. Shuvaev、V. P. Kurbatov、M. Yu. Antipin、A. D. Garnovskii
DOI:10.1007/bf02494925
日期:2000.11
Copper(II) chelates of composition CuL2 were synthesized based on 4-aminomethylene derivatives of 5-thiopyrazoles (LH). The complexes were studied by UV, IR, ESR, and EXAFS spectroscopy, magnetochemistry, and X-ray diffraction analysis. The coordination polyhedra in the complexes are pseudotetrahedra or octahedra of the types CuN2S2 or CuN4S2, respectively, which are distorted due to the Jahn—Teller
基于 5-噻唑 (LH) 的 4-氨基亚甲基衍生物合成了组成为 CuL2 的铜 (II) 螯合物。通过紫外、红外、ESR 和 EXAFS 光谱、磁化学和 X 射线衍射分析研究了配合物。配合物中的配位多面体分别是 CuN2S2 或 CuN4S2 类型的假四面体或八面体,由于 Jahn-Teller 效应而扭曲。与由偶氮甲碱配体的 N 和 S 原子以及 C=NR 片段的喹啉取代基 (R) 的氮原子形成的六配位金属环的铜螯合物的 UV 和 ESR 光谱与光谱最相似观察到参与天然金属酶活性中心的金属(“蓝色”铜蛋白)。