Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/14718
Title: Synthesis and characterization of antimony (III) dithiocarbamate, xanthate, dithiophosphate complexes and nano stibnite
Authors: LIU YU
Keywords: Dithiocarbamate Xanthate Dithiophosphate Nano Stibnite Anti-tumour
Issue Date: 31-May-2005
Source: LIU YU (2005-05-31). Synthesis and characterization of antimony (III) dithiocarbamate, xanthate, dithiophosphate complexes and nano stibnite. ScholarBank@NUS Repository.
Abstract: This thesis reports the systematic synthesis and characterization (including X-ray crystallographic) of a range of antimony(III) dithiocarbamate (-S2CNR2), xanthate (-S2COR), and dithiophosphate (-S2P(OR)2) complexes and, using these as synthetic precursors, the generation of nano-sized stibnite, Sb2S3.Based on thermogravimetric analysis, a selection of these compplexes were thermally decomposed by i) solvothermal techniques and ii) hydrothermal methods so as to ascertain their utility as single-source precursors for the generation of stibinite (Sb2S3). The nano-sized products of stibnite were characterized by X-ray powder diffraction (Rietveld analysis), Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). It showed that the size, homogeneity and morphology of the stibinite are controlled by the nature of the synthetic precursors and the decomposition conditions.Based on previous study, the preliminary biological data of diethyl and pyrrolidyl dithiocarbamate coupled arsenic(III) and antimony(III) compounds were obtained. All the compounds efficiently inhibited the growth of human cancer cell lines at micromolar concentrations. Generally, the arsenic(III) compounds are more cytotoxic than the corresponding antimony(III) compounds.
URI: http://scholarbank.nus.edu.sg/handle/10635/14718
Appears in Collections:Master's Theses (Open)

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