Molecular clusters are molecules containing three or more metal atoms. As well as being of biological interest, many enzymes contain small metal clusters, they can also exhibit fascinating magnetic behaviour.
A family of particular interest are single molecule magnets (SMMs). SMMs exhibit slow relaxation of magnetization and consequently become trapped in one magnetic state. This allows them to be used as molecular switches.
In this area our group has been working Fe and Co clusters with more diverse and designed ligands in an attempt to more effectively control the shape and nuclearity of the clusters.