Comparative Effects of Water, Acid and Sodium Benzoate as Additives on the Micelle-Influenced Aquation Reactions of Some Iron (II) Phenanthroline Complexes in Acetone

Abstract

The relative effects of water, sulphuric acid and sodium benzoate as additives on the micelle-catalyzed aquation reactions of the complexes:Fe(Me2Phen)3 2+ and FE(Me4Phen) were studied in acetone using Triton X-100 (TX-100), as the surfactant-catalyst. FE(Me4Phen)2+ equates faster than FE(Me2Phen)2+ in the presence of H+ and PhCOONa while the reverse holds when H20 is the additive. And with the exception of some high surfactant concentration: (45.0=[TX-100]=- 71.25% v/v) in the case of Fe(Me4Phen)2+, the aquation rates of both complexes in the presents of the three additives generally follow the order:k o(water)>k o(benzoate)>k o(acid) for additive concentration ranges considered.

UNISWA Research Journal of Agriculture, Science and Technology Vol 3 (2) 2000: pp 71-76