Kinetics of the aquation of cis-chlorocyanobis(2,2′-bipyridine)cobalt(III) and cis-chlorocyanobis(1,10-phenanthroline)cobalt(III) cations

We have studied the kinetics of aquation of cis-chlorocyanobis(2,2′-bipyridine)Co(III), and cis-chlorocyanobis(1,10-phenanthroline)Co(III) cations, and determined activation parameters, in order to compare the labilities of these cations with the lability of the analogous compounds containing ethylenediamine and other non-participating ligands such as Cl^? and NO₂^?.