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Transition metal dithiophosphate complexes are coordination compounds containing dithiophosphate ligands, i.e. ligands of the formula 2PS2. The homoleptic complexes have formulas M2]2 and M2]3. These neutral complexes tend to be soluble in organic solvents, especially when R is branched.
Perhaps the most important members are zinc dialkyldithiophosphates, which are oil additives. Such compounds are prepared by the reaction of dialkoxydithiophoric acid with metal oxides, chlorides, and acetates.
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