Spectral and biocidal studies of palladium(II) and platinum(II) complexes with monobasic bidentate Schiff bases

Abstract

The monobasic bidentate Schiff base complexes of palladium(II) and platinum(II) derived from 1H-indol-2,3-dione thiosemicarbazone (L 1 H) and 1H-indol-2,3-dione semicarbazone (L 2 H) have been characterized on the basis of elemental analysis, molecular weight determinations, i.r., 1 H n.m.r. and u.v. spectral studies. Based on these studies a square planar environment around the metal atoms has been proposed. Antimicrobial effects of both the ligands and their complexes on different species of pathogenic fungi and bacteria have been recorded and these are found to possess significant fungicidal and bactericidal properties.

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

“…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].…”

Comparative spectral and thermal studies of [Pt(DioxH)2] chelates

“…Pt(II) also reacts with non--substituted monoximes (e.g., acetaldoxime, propion-aldoxime) and appears in coordination compounds of other bi-and polydentate azomethines (hydrazones, semi-and thiosemicarbazones, Schiff-bases, etc. [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]). Ni(II) and Pd(II) also form [M(DioxH) 2 ] type coplanar chelates.…”

Schiff bases: An emerging potent class of pharmaceuticals

“…Systems of this kind play a significant role in many biological processes due to their coordinating ability to the metal ion . Bioinorganic and biomimetics, containinga C=N bond, are widely represented (Biyala et al, 2008). Schiff bases have been intensively investigated recently owing to their strong coordination capability and diverse biological activities, such as antibacterial and antitumor activities (Ren et al, 2002).…”