Exchange Rates of Ligands in Complex Ions

Abstract

Abstract It is possible to study the very rapid exchange rates between molecules or ions, L, coordinated to paramagnetic ions and the free molecules or ions, L * , in the body of the solution by measuring the line width of the NMR signal of L * . Lifetimes of coordinated ligands that can be measured fall into the range of milliseconds to microseconds. The lifetime, or an upper limit to the lifetime, can be measured directly.