Spectroscopic studies and biological evaluation of some transition metal complexes of Schiff-base ligands derived from 5-arylazo-salicylaldehyde and thiosemicarbazide

Preparation, spectral characterization and antimicrobial activity of binary and ternary Fe(III), Co(II), Ni(II), Cu(II), Zn(II), Ce(III) and UO2(VI) complexes of a thiocarbohydrazone ligand

“…The first two bands may be assigned to p-p à transitions of the aromatic benzene ring while the last band may be assigned to p-p à and n-p à transitions of the (C@N) and (C@S) groups. 1 H and 13 C NMR spectral data (d ppm) of the ligand relative to TMS (0 ppm) in DMSO-d 6 , Fig. 1, lend further support of the suggested structure of the ligand.…”

“…Metal complexes of ligands containing ONS donors have antibacterial [1][2][3], antifungal [4,5] and antitumour activities [6][7][8]. Metal complexes of thiocarbohydrazones have attracted much attention due to their biological activity [9][10][11].…”

Spectroscopic and thermal characterization of Cu(II), Co(II), Ni(II) and Mn(II) complexes of fluorescent dye 4-N,N-dimethyl-ethanolamine-N-allyl-1,8-naphthalimide (4DMEAN)

“…Conductivity measurements provide a method of testing the degree of ionization of the complexes, the molecular ions that a complex liberates in solution (in case of presence anions outside the coordination sphere), the higher will be its molar conductivity and vice versa [31][32][33][34]. It is clear from the obtained data that the complexes present seem to be non-electrolytes.…”

Synthesis and Biological Studies of Some Lanthanide Complexes of Schiff Base

“…[17] Schiff bases have been applied in many fields (e.g., anticancer, antibacterial, antiviral, antifungal, and other biological properties). [18][19][20][21][22][23] Schiff bases have practical importance in biology due to the presence of N, S, O, and P donor groups, which inhibit the growth of bacteria. [3] Those containing -NDCform a strong chelated ring giving delocalization associated with extended conjugation.…”