Vanadium dithiocarbamates

Vanadium dithiocarbamates are reported with the metal in the oxidation states + 3 and + 4. 

The first examples of vanadium dithiocarbamate complexes were the eight-coordinate vanadium(IV) species [V(S2CNR2)4] prepared in the late 1960s by... 

Figure 65. Examples of heterocubane clusters containing vanadium dithiocarbamate groups.

Vanadium Co-precipitation with ferric hydroxide, cobalt ammonium pyrrolidine dithio carbarn ate or ammonium pyrrolidine dithiocarbamate Miscellaneous [920]... 

The formation of chloroimino ligands has been proposed solely on weak v(C=N) vibrations in the 1600-1750 cm-1 IR region. A repeat of the vanadium reaction by other workers (109) found the product of their reaction to be VC13(CNBu )3, so some caution should be applied to the formulation of the proposed vanadium dimer at least. Substitution reactions on these compounds with a series of mono- and bidentate tertiary phosphorus ligands and metathetical replacements with lithium quinolin-8-olate and sodium diethyl dithiocarbamate have given a range of neutral and cationic products (204, 483). 

Small amounts of heavy metals can be separated from aluminium by extraction as dithiocarbamates and dithizonates. Ti and Zr can be stripped from chloroform extracts of Al, Ti, and Zr oxinates by shaking with ammoniacal solution at pH 9.2 [9]. Vanadium and titanium can be separated from Al by extracting the cupferronates from a 1 M H2SO4 medium with CHCI3. 

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