Dissociation of platinum(II) nucleobase complexes—evidence for a three-path mechanism via a five-coordinate intermediate
Abstract
In thiourea assisted dissociation of [Pt(dien)(Guo-N7)]2+(Guo = guanosine, dien = diethylenetriamine) in aqueous solution (pH =ca. 3) the nucleophile dependent reaction follows a three-path mechanism, in which the initial binding of the nucleophile to the complex and the ring-opening step of the terdentate dien ligand are reversible.