Synthesis and properties of N-bromosuccinimide derivatives of ammonium dialkyl/alkylene dithiophosphates.

Reaction of N-bromosuccinimide with ammonium salt of alkylene (dialkyl) dithiophosphates, [OGOPS2NH4; G=−CMe2CMe2−CH2CMe2CH2−, CMe2CH2CHMe2−, CH2CH2CHMe2−; (RO)2PS2NH4; R=C2H5, n−C3H7, i−C3H7], in 1 : 1 molor ratio in refluxing benzene solution yields red/brown-colored sticky liquids. These newly synthesized complexes have been characterised by physicochemical and spectroscopic techniques (MW, IR, NMR [1H and 31P]). The computational semiempirical calculations (MOPAC6P/c) have also been studied for these complexes. On the basis of the above studies, the formation of P−S−N chemical linkage has been established.