Christopher R. Murdock

Isoreticular synthesis of 2D MOFs with rotating aryl rings

A series of isoreticular two-dimensional metal–organic frameworks (MOFs) was synthesized with group 11 metals and semirigid ligands that bind in a syn conformation. The modular synthetic approach allows the pore to be expanded based on the aryl moiety in the center of the linker from 11.0 A to 15.5 A. When there is an axis of rotation, each aryl ring can act independently as a rotating gate as a function of guest molecules. For the two aryl ring system, all three states (open/open, open/closed, and closed/closed) are observed by single crystal X-ray diffraction (SCXRD). The guest dependent nature of the aryl rings makes this two-pillared topology a logical choice for breathing MOFs.

Utilization of Metal-Organic Frameworks for the Management of Gases Used in Ion Implantation

Metal-Organic Frameworks (MOFs) are porous extended crystalline structures comprised of organic ligands and metal units. By changing the identity of the organic ligand and metal unit utilized in the MOF synthesis, the structure, surface area, pore size, and reactivity of the MOF can be modulated. This structural flexibility means that MOFs can potentially be used in a wide range of storage, separation, and catalytic applications. There is a high level of interest in the storage, delivery, capture, and purification of ultra high-purity hazardous gases used in electronics manufacturing (electronic gases). This paper will discuss the use of MOFs as an ideal platform for product and process innovation in the electronic gas sector.