Electron Transfer Reaction of Theobromine and Permanganate Ion in Aqueous Acidic Media

Electron transfer reaction of theobromine (hereafter referred to as TB) and permanganate ion has been studied using spectrophotometric technique under pseudo first-order conditions at T = 24, [H+] 3.2 × 10–1 mol dm–3and I 1.0 dm–3 (Na2SO4). Stoichiometric study depicted that two moles TB were consumed by one mole ion. The rate the is first order in both [TB] [MnO4-] second overall. It was observed that, ionic strength respectively enhanced range studied. Michaelis-Mentens analysis showed no evidence intermediate complex formation. Added anions cations catalyze rate. conforms law shown below: -d [MnO4-]/dt (a+b [H+]) where a 0.041 dm3mol–1 s–1 b= 0.028 s–1. thus occurs an outer-sphere pathway plausible mechanism proposed for reaction.