Zinc, dithiocarbamate complexes applications

The thermochemistry of dithiocarbamate complexes is of considerable interest, primarily since they can be used as molecular precursors for the synthesis of a range of technologically important metal sulfides, especially those of copper and zinc (see Sections III.H.l.g.ii and III.I.Lh.i). The successful application of this approach relies on the volatility of the metal complexes and the strength of the metal-sulfur and metal-carbon bonds since the latter must be cleaved, while the former is retained (at least to some extent). Consequently, a large number of studies have focused on the thermochemical properties of transition metal dithiocarbamate complexes and HiU and co-workers (22, 562, 563) and others (23, 564) reviewed aspects of these. 

V. Other Applications. In other potential applications, zinc bis(diamyl-dithiocarbamate) has been shown to be a better antioxidant for motor oils than zinc dithiophosphates (2047), and other bis(dithiocarbamate) complexes have been shown to have liquid-crystal properties (1485). 

Willis (W12) has recently summarized the principles and applications of this method. A short note appeared recently regarding the use of atomic absorption spectrometry for serum and urine copper analysis (B15). The sensitivity of this method for copper is rather less than for such other biologically important trace metals as magnesium, zinc, and sodium. The sensitivity can be improved by extracting the copper as dithiocarbamate or pyrollidinedithiocarbamate complex (A7) into methyl isobutyl ketone. While this method is less sensitive than some others, it is nevertheless very specific and the apparatus is only moderately expensive. 

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