Size-Dependent Behavior of Porous Nanocrystals

Producing metal-organic frameworks as nanoparticles could make them easier to process at industrial scale and change properties such as transport. Controlled synthesis and the effects of particle size remain insufficiently understood. Carl K. Brozek presents synthetic methods and mechanistic models for preparing MOF nanoparticles whose electrical conduction, magnetism, optical response and dynamic bonding differ from bulk frameworks. Solution-state spectroscopy and electrochemistry expose size-dependent and interfacial effects that conventional framework materials do not reveal. The work provides approaches for scalable MOF manufacture while raising broader questions about relationships among structure, size and properties.