Syntheses,Crystal Structures and Property of Pyridine Zinc(Ⅱ)Complexes Based on Halogenated Salicylaldehyde Schiff Base

• 作者: JIANG Wu-Jiu NI Peng-Hui MAO Fang-Fang TAN Yu-Xing
• 来源期刊: 结构化学
• 年，卷（期）: 2022,（3）
• 页码范围: 12-18
• 页数: 7页
• 语种: 英文
• DOI: 10.14102/j.cnki.0254-5861.2011-3285

摘要

Schiff base pyridine zinc(Ⅱ)complexes 1～4 were synthesized by the reaction of the 2-((2-hydroxybenzylidene)amino)phenol Schiff base with appended donor functionality,zinc acetate,and pyridine.The results of the structural characterization of the complex show that they have the same coordination mode and similar steric structure.Complexes 1 and 3 form a one-dimensional chain structure and two-dimensional grid struc-ture by lots of hydrogen bonds,respectively.Thermogravimetric analysis shows complexes 1～4 can exist stably be-low 150℃.The results of the fluorescence quenching experiments between the complexes and DNA-EB show that the interaction between them is intercalation,and the effect of complex 1 is the most obvious.It is speculated that the steric hindrance of complex 1 is relatively small,and the aromatic ring on the ligand is more likely to inserted into the base pair of DNA.