Comparative Studies of Some Novel Cu(II) Polymeric Complexes Derived from Cyanoacetylhydrazine (CAH;L). The Role of Solvents Used on the Structure and Geometry of the Isolated Cu²⁺Complexes  

作　　者：Mohsen M. Mostafa Mohsen M. Mostafa(Chemistry Departments, Faculty of Science, Mansoura University, Mansoura, Egypt)

机构地区：[1]Chemistry Departments, Faculty of Science, Mansoura University, Mansoura, Egypt

出　　处：《Open Journal of Inorganic Chemistry》2021年第4期111-130,共20页无机化学期刊（英文）

摘　　要：Novel polymeric Cu²⁺ complexes derived from the reaction of cyanoacetylhydrazine (<strong>CAH</strong>;<strong>L</strong>) with CuCl₂•2H₂O in different solvents were synthesized and characterized. The isolated solid polymeric complexes were investigated using modern conventional physicochemical and spectral (IR, ¹H-NMR, UV-Vis. ESR, Raman), magnetic and thermal studies. The results revealed that <strong>CAH</strong> behaves in different ways towards the coordination of the Cu²⁺ ion. The promotion of solvents to the cyano group was discussed on the basis of the solvent and the Cu²⁺ ion used. Magnetic and spectral studies suggest octahedral geometry is proposed for the Cu²⁺ complexes. EPR studies indicate the existence of polymeric complexes depending on the results of <i>g</i>-values. The results suggest that the number of copper atoms ranges from three to twelve atoms. The molecular modeling is drawn and some chemical characteristics are calculated such as chemical reactivity and energy components are investigated between the different types of the ligands.Novel polymeric Cu²⁺ complexes derived from the reaction of cyanoacetylhydrazine (<strong>CAH</strong>;<strong>L</strong>) with CuCl₂•2H₂O in different solvents were synthesized and characterized. The isolated solid polymeric complexes were investigated using modern conventional physicochemical and spectral (IR, ¹H-NMR, UV-Vis. ESR, Raman), magnetic and thermal studies. The results revealed that <strong>CAH</strong> behaves in different ways towards the coordination of the Cu²⁺ ion. The promotion of solvents to the cyano group was discussed on the basis of the solvent and the Cu²⁺ ion used. Magnetic and spectral studies suggest octahedral geometry is proposed for the Cu²⁺ complexes. EPR studies indicate the existence of polymeric complexes depending on the results of <i>g</i>-values. The results suggest that the number of copper atoms ranges from three to twelve atoms. The molecular modeling is drawn and some chemical characteristics are calculated such as chemical reactivity and energy components are investigated between the different types of the ligands.

关 键 词：Polymeric Cu(II) Complexes ESR Studies Cyanoacetylhydrazine DFT Studies 

分 类 号：O62[理学—有机化学]