Magnetic Susceptibility in Transition Metal Complexes

Magnetic susceptibility helps reveal whether a transition metal complex has unpaired electrons. Many organic molecules are diamagnetic, which means all of their electrons are paired in bonds. In contrast, many transition metal complexes are paramagnetic and have unpaired electrons in their ground state.

The Evans method is a technique for calculating the number of unpaired electrons in solution-state metal complexes.

Many transition metal complexes have unpaired electrons, making them attracted to magnetic fields. These complexes are called paramagnetic. Complexes with all paired electrons are called diamagnetic.

Knowing the number ...