| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Synthesis, Characterization, Modeling and Applications of Functional Porous Materials
|
| Presentation Title |
Small Molecules as Guests in Metal-organic Frameworks |
| Author(s) |
Craig M. Brown |
| On-Site Speaker (Planned) |
Craig M. Brown |
| Abstract Scope |
Adsorption of molecules in functionalized and high surface area metal-organic frameworks (MOFs) is of emergent technological importance ranging from chemical separations to energy storage. We study the properties of MOFs and other porous materials for storage and separations of industrially important small molecules such as hydrogen, oxygen, carbon dioxide, noble gases, and short chain organics. Besides the geometrical and porosity control available in MOF chemistry, the properties of the frameworks can be tweaked to elevate electrostatic interactions by exposing open metal cation sites or through enhanced van der Waals contacts via functionalizing ligands and introducing flexibility. Here, we discuss the information accessible from neutron and X-ray scattering experiments on a selection of nominally rigid MOFs and those with some flexibility that respond to guests in specific ways dependent upon the exact guest-framework interactions. The results illustrate the governing characteristics of these material properties and the interactions with the guest molecules. |