title: Group 12 dithiocarbamate complexes: synthesis, spectral studies and their use as precursors for metal sulfides nanoparticles and nanocomposites.
abstract: Zn(II), Cd(II) and Hg(II) dithiocarbamate complexes have been synthesized and characterized by elemental analysis, thermogravimetric analysis, UV-Vis, FTIR, (1)H- and (13)C NMR spectroscopy. The complexes were thermolysed at 180 °C and used as single molecule precursors for the synthesis of HDA capped ZnS, CdS and HgS nanoparticles and polymethylmethacrylate (PMMA) nanocomposites. The optical and structural properties of the nanoparticles and nanocomposites were studied by UV-Vis, PL, XRD and SEM. The crystallites sizes of the nanoparticles varied between 3.03 and 23.45 nm. SEM and EDX analyses of the nanocomposites confirmed the presence of the nanoparticles in the polymer matrix.
authors.affiliation: Department of Chemistry, University of Fort Hare, Private Bag X1314, Alice 5700, South Africa. pajibade@ufh.ac.za
authors.forename: Peter A
authors.initials: PA
authors.lastname: Ajibade
authors.forename: Benjamin C
authors.initials: BC
authors.lastname: Ejelonu
mesh_terms: D056831:Coordination Complexes / Q000737:chemistry; D003460:Crystallization; D004050:Ditiocarb / Q000138:chemical synthesis* / Q000737:chemistry*; D004583:Electrons; D009682:Magnetic Resonance Spectroscopy; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D008670:Metals / Q000737:chemistry*; D053761:Nanocomposites / Q000737:chemistry* / Q000648:ultrastructure; D055620:Optical Phenomena; D010316:Particle Size; D019904:Polymethyl Methacrylate / Q000737:chemistry; D013050:Spectrometry, Fluorescence; D017550:Spectroscopy, Fourier Transform Infrared; D013440:Sulfides / Q000737:chemistry*; D013818:Thermogravimetry; D014961:X-Ray Diffraction
chemical_list: D056831:Coordination Complexes; D008670:Metals; D013440:Sulfides; D019904:Polymethyl Methacrylate; D004050:Ditiocarb
keywords: Dithiocarbamate complexes; Nanocomposites; Nanoparticles; Precursors; Spectral studies; Synthesis