Stopped-flow kinetics of the base hydrolysis of the cis-[Co(L)2(NH2Bun)-Cl]2+ ion (L = ethylenediamine)

Abstract

The base hydrolysis cis-[Co(en)₂(NH₂Buⁿ)CI]²⁺+ OH^– [graphic omitted] [Co(en)₂(NH₂Buⁿ)OH]²⁺+ CI^– has been studied at 25° and l= 0·5 mol l^–1 over the range of base concentrations 0·025–0·50 mol l^–1 using a stopped-flow technique. In contrast to some previous reports, the rate law –d[complex]/dt=k₂[complex][OH^–] is obeyed over the whole basicity range employed with k₂= 6·5 ± 0·3 mol^–1 I s^–1.