19779-48-7

In this study, adducts of Zn(II) dithiocarbamates containing different N-donor ligands (pyridine, 2,2′-bipyridine and 1,10-phenanthroline) have been synthesized. The parent dithiocarbamate complex comprise N-methyl-N-phenyl dithiocarbamate (L1) and N-ethyl-N-phenyl dithiocarbamate (L2), and the adducts are represented as [ZnL1L2py], [ZnL1L2bpy], and [ZnL1L2phen] (where py = pyridine, bpy = 2,2′-bipyridine, and phen = 1,10-phenanthroline). All the compounds have been characterized by elemental analysis and spectroscopic techniques (IR and NMR). In addition, the crystal structure of [ZnL1L2bpy] complex is also reported. The structure indicates that the two dithiocarbamate ligands are disordered in 0.67:0.33 ratio and alternatively bond as monodentate and bidentate ligands. The bipyridine acts as a bidentate ligand, and gives the structure around the Zn atom a distorted square pyramidal geometry. In order to evaluate their antimicrobial properties, the precursor complex and the adducts were screened against six pathogenic bacteria strains and two fungi organisms. The antimicrobial activities of the complexes were in the order [ZnL1L2] > [ZnL1L2py] > [ZnL1L2bpy] > [ZnL1L2phen]. The precursor complex, ZnL1L2, showed the lowest MIC and is considered as the complex with most antimicrobial activity against the selected microorganisms.

Bis(N-ethylphenyldithiocarbamato)palladium(II) was synthesized and characterized by elemental analysis, spectroscopic techniques and single crystal X-ray crystallography. The molecular structure confirmed the N-ethylphenyldithiocarbamato anions coordinate

Zn(II), Cd(II), and Hg(II) dithiocarbamate complexes were synthesize and characterized by elemental analysis, thermogravimetric analysis, UV-Vis, FTIR, and1H- and13C-NMR spectroscopy. Single-crystal X-ray crystallography revealed that the Zn complex has a centrosymmetric dimeric structure while the Hg complex crystallizes with two monomeric molecules of the mercury complex and two molecules of toluene solvent in the asymmetric unit. The compounds were used as single molecule precursors to synthesize HDA capped metal sulfides nanoparticles with average crystallite size ranging from 7 to 22 nm. The optical properties of the nanoparticles showed evidence of quantum confinement.

Ammonium N-ethyl-N-phenyl dithiocarbamate (L1) and N-butyl-N-phenyl dithiocarbamate (L2), and their group 12 metal complexes formulated as Zn2L14, CdL12, HgL12/s