Synthesis, Structure, and Magnetic and Biological Properties of Copper(II) Complexes with 1,3,4-Thiadiazole Derivatives
作者:Lyudmila G. Lavrenova、Taisiya S. Sukhikh、Lyudmila A. Glinskaya、Svetlana V. Trubina、Valentina V. Zvereva、Alexander N. Lavrov、Lyubov S. Klyushova、Alexander V. Artem’ev
DOI:10.3390/ijms241613024
日期:——
with L1 were determined. The structures of the coordination core of complexes Cu(L2)Cl2 and Cu(L2)Br2 were determined by Extended X-ray absorption fine structure (EXAFS) spectroscopy. Magnetization measurements have revealed various magnetic states in the studied complexes, ranging from an almost ideal paramagnet in Cu(L1)2Br2 to alternating-exchange antiferromagnetic chains in Cu(L1)(C2N3)2, where double
铜(II)与2,5-双(乙硫基)-1,3,4-噻二唑(L1)和2,5-双(吡啶基甲硫基)-1,3,4-噻二唑(L2)的新配位化合物及其组合物制备Cu(L1)2Br2、Cu(L1)(C2N3)2、Cu(L2)Cl2和Cu(L2)Br2。通过 CHN 分析、红外 (IR) 光谱、粉末 X 射线衍射 (XRD) 和静磁化率对配合物进行了鉴定和研究。确定了 Cu(II) 与 L1 配合物的晶体结构。通过扩展X射线吸收精细结构(EXAFS)光谱测定了配合物Cu(L2)Cl2和Cu(L2)Br2的配位核结构。磁化测量揭示了所研究的配合物中的各种磁态,从 Cu(L1)2Br2 中几乎理想的顺磁体到 Cu(L1)(C2N3)2 中的交替交换反铁磁链,其中双氰胺桥提供了异常强的交换相互作用Cu(II) 离子之间(J1/kB ≈ -23.5 K;J2/kB ≈ -20.2 K)。铜 (II) 与 L2 复合物的细胞毒活性在人乳腺癌