Dialkyl- and alkylenedithiophosphates of gallium(III)

Abstract

Gallium(III) tris-dialkyldithiophosphates, Ga[S 2P(OR) 2] 3 (R = C 2H 5, n-C 3H 7, i-C 3H 7, n-C 4H 9 and i-C 4H 9) and gallium(III) tris-alkylenedithiophosphates, Ga(S 2 POGO ) 3 [G = -CH 2C(C 2H 5) 2CH 2-, -C(CH 3) 2C(CH 3) 2 and -C(CH 3) 2CH 2CH(CH 3)] have been synthesized for the first time by the reactions of gallium(III) chloride with the alkali metal salt of the corresponding ligand in anhydrous benzene in 1:3 molar ratio respectively. These compounds are crystalline solids or viscous liquids and are soluble in common organic solvents, in which they show monomeric behaviour. Based on elemental analyses, molecular weight determinations, IR and NMR ( 1H and 31P) spectral data, chelate octahedral structures have been proposed for these derivatives.