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SRP. 2021; 12(1): 107-115

Cupper (II) and Mercury (II) Complexes with Schiff Base ligands from Benzidine with Isatin and Benzoine: Synthesis, Spectral Characterization, Thermal Studies and Biological Activities

Hiyam Hadi Alkam, Eman Mutar Atiyah, Noor Mohammed Majeed, Wasan Mohammed Alwan.


The antimicrobial study, characterization and synthesis of cupper (II) and mercury (II) complexes from the Schiff base ligands (L1) as well as (L2) were indicated in the presented work. Also, the ligand (L1),[ 2,2-(biphenyl-4,4diylbis(azan-1-yl-1-ylidene))bis(1,2-diphenylethanol)]is acquired via the condensation benzidine and benzoine, whereas the ligand (L2), [3,3-(biphenyl-4,4-diylbis(azan-1yl-1-ylidene))diindolin-2-one] was acquired via the condensation of the benzidine and isatin. Complexes and ligands have been specified via Infrared spectra, vibration electronic, molar conductance, NMR spectrum as well as other studies. In addition, such complexes molar conductance is conveying their ionic character, while the spectral data is showing that the composition related to metal complexes as [Cu2(L1)(L2)]Cl2 and [Hg2(L1)(L2)(H2O)4]Cl2, (L1 and L2 were schiff base ligands).Antifungal and antibacterial activities of such complexes of cupper (II) and mercury (II)with Schiff bases were done via disc diffusion approach. Lastly, the results of biological activities and characterization are provided in the presented work.

Key words: characterization, benzidine, biological activity, copper, structure

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