Novel Porous Materials
Metal Organic Frameworks, or MOFs, are an emerging class of materials characterized by regular crystalline structures and a high degree of porosity. Although these materials have found many applications in gas storage, separation, and sensing, one area which has seen less progress is the development of MOFs that display strong magnetic coupling. One of the distinct challenges to strong magnetic coupling in MOFs is that large lengths between nodes that gives rise to porosity in MOFs also decreases the magnetic coupling between those nodes.
One strategy that has the potential to alleviate this problem is the incorporation of radical based linkers between paramagnetic nodes. By inserting an S =1/2 linker, direct exchange between the paramagnetic node and the radical can be realized, allowing for much stronger coupling over longer distances. Towards this end, we are developing stable radical bridged MOF scaffolds that display strong magnetic coupling.