SNO donor Schiff bases and their Co(II), Ni(II) and Cu(II) complexes: synthesis, characterization, electrochemical and antimicrobial studies

作者：Kulkarni Ajaykumar D; Patil Sangamesh A^*; Badami Prema S

来源：Journal of Sulfur Chemistry, 2009, 30(2): 145-159.

DOI：10.1080/17415990802663133

• antimicrobial
• electrochemical
• isatin
• NMR
• spectral
• triazoles

A series of Co(II), Ni(II) and Cu(II) complexes have been synthesized with newly synthesized Schiff bases derived from 3-substituted-4-amino-5-mercapto-1,2,4-triazole and isatin. The elemental analyses of the complexes are confined to the stoichiometry of the type ML(2) [M=Co(II), Ni(II) and Cu(II)], respectively, where L acts as a deprotonated ligand in which sulfur plays an important role in coordination. In view of analytical, spectroscopic, magnetic and thermal studies, it has been concluded that the Co(II), Ni(II) and Cu(II) complexes possess octahedral geometry. The redox behavior of the complexes investigated with the aid of cyclic voltammetry indicated the two-electron transfer process. The antimicrobial studies of Schiff bases and their complexes against various antibacterial (Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa and Bacillus subtilis) and antifungal (Aspergillus niger and Pencillium chrysogenum) species by the minimum inhibitory concentration method revealed that the Schiff bases and some of their metal complexes possess more healing antibacterial activity.

• 出版日期2009