Abstract
Abstract Antimony(III) tris-(O,O-dialkyl phosphorodithioates) undergo ligand exchange reactions with nickel(II) chloride or nickel(II) octanoate in tetrahydrofuran solution to give nickel(II) bis-(O,O-dialkyl phosphorodithioates). The rates of the exchange reactions with nickel(II) chloride have been measured, and the rate constants can be correlated with polar substituent constants by use of the Taft-Hammett equation. The results suggest that the ligand exchange reactions occur by an initial SN2 type of attack of chloride ion on the antimony atom of the antimony(III) tris-(O,O-dialkyl phosphorodithioates).
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