Binuclear half-sandwich ruthenium(II) Schiff base complexes: Synthesis, characterization, DFT study and catalytic activity for the reduction of nitroarenes
The binuclear ruthenium(II) p-cymene complexes containing Schiff base ligands of general composition [(Ru(p-cymene)Cl)2L1-6] (1-6) have been synthesized. The complexes were characterized by analytical and spectral (FT−IR, UV–Vis & 1H NMR) methods. The molecular structure of the representative complex [(Ru(p-cymene)Cl)2(L6)] (6) was determined by single-crystal X-ray diffraction and density functional
合成了具有一般组成[(Ru(对-cymene)Cl)2 L 1-6 ](1-6)的席夫碱配体的双核钌(II)对-cymene配合物。通过分析和光谱(FT-IR,UV-Vis和1 H NMR)方法对复合物进行了表征。通过单晶X射线衍射和密度泛函理论(DFT)计算来确定代表性络合物[(Ru(p- cymene)Cl)2(L 6)] (6)的分子结构。此外,这些半三明治钌络合物是在NaBH存在下将硝基芳烃温和氢化为芳族苯胺的活性催化剂在乙醇中加4。发现最有效的催化剂6与各种官能团的硝基芳烃相容。
Cation sensing by luminescent high-nuclearity Zn–Eu Schiff base nanoscale complexes: high sensitivity to Ag<sup>+</sup> and Cd<sup>2+</sup> ions at the ppm level
Two types of Zn–Ln nanoscale complexes were constructed using Schiff base ligands, and the 12-metal Zn–Eu complex shows interesting luminescent sensing of metal cations.
372 nm on binding with the Zn(II) cation from pH = 6 to 14. No such significant change was observed for other metal ions. Fluorescence intensity was linear with concentration of Zn (II) cation in a range from 1 × 10− 7 mol·L− 1 to 1.2 × 10− 5 mol·L− 1. This Schiff base compound is a promising system for the development of newfluorescentprobes for the detection of Zn (II) cation.