Some new IIB group complexes of an imidazolidine ligand: Synthesis, spectral characterization, electrochemical, thermal and antimicrobial propert

Journal of Chemical Sciences

Morteza Montazerozohori1²  Somayeh Veyseh¹  Sayed Alireza Musavi²  Asghar Naghiha³ 

[1] Applied Geological Research Center of Iran, No 7, Sarbazane Gomnam Blvd, Samad Naghdi 31746-74841, Iran$$;Department of Chemistry, Yasouj University, Yasouj 75918-74831, Iran$$;Department of Animal Sciences, Faculty of Agriculture, Yasouj University, Yasouj 75918-74831, Iran$$

关键词: Schiff base;    spectroscopic;    cyclic voltammetry;    antibacterial;    antifungal;    thermogravimetry.;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

An imidazolidine Schiff base ligand, (E)-N-(4-nitrobenzylidene)-2-(2-(4-nitrophenyl) imidazolidine-1-yl) ethaneamine (L) has been synthesized by a condensation reaction between N'-(2-aminoethyl)-ethane-1,2-diamine and 4-nitrobenzaldehyde in 1:2 ratio and then characterized by physical and spectral data. Some new complexes with general formula of MLX2(wherein M is Zn(II),Cd(II) and Hg(II) and X is chloride, bromide and/or iodide) have been prepared and characterized by physical and spectroscopic studies such as elemental analysis, molar conductance measurements, FT-IR, 1H and 13C NMR and UV-Visible electronic spectra. The spectral data indicate that the ligand is coordinated to zinc(II) as a bidentate ligand in imidazolidine form but it binds to other metal salts as bis-imine tridentate ligand. Furthermore, cyclic voltammetry technique was applied for recording the electrochemical behaviour of the ligand and its complexes. Cyclic voltamogram of the ligand showed that it is reduced at four cathodic potentials and then oxidized only in two anodic potentials in reverse direction. The electrochemical behaviour of ligand is affected by coordination. Thermal analysis of ligand and its complexes revealed that they are decomposed via 3-4 thermal steps. Moreover, some activation thermodynamic parameters such as A, E∗, 𝛥H∗, 𝛥S∗ and 𝛥G∗ were calculated based on TG/DTA plots using Coats-Redfern relation. The Schiff base ligand and its complexes have also been tested in vitro to evaluate their antimicrobial activities.

【 授权许可】

Unknown