The quest for modular nanocages: Tbo -MOF as an archetype for mutual substitution, functionalization, and expansion of quadrangular pillar building blocks
AuthorsEubank, Jarrod F.
Al Kordi, Mohamed
KAUST DepartmentAdvanced Membranes and Porous Materials Research Center
Physical Sciences and Engineering (PSE) Division
Chemical Science Program
Functional Materials Design, Discovery and Development (FMD3)
Permanent link to this recordhttp://hdl.handle.net/10754/561875
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AbstractA new blueprint network for the design and synthesis of porous, functional 3D metal-organic frameworks (MOFs) has been identified, namely, the tbo net. Accordingly, tbo-MOFs based on this unique (3,4)-connected net can be exclusively constructed utilizing a combination of well-known and readily targeted [M(R-BDC)]n MOF layers [i.e., supermolecular building layers (SBLs)] based on the edge-transitive 4,4 square lattice (sql) (i.e., 2D four-building units) and a novel pillaring strategy based on four proximal isophthalate ligands from neighboring SBL membered rings (i.e., two pairs from each layer) covalently cross-linked through an organic quadrangular core (e.g., tetrasubstituted benzene). Our strategy permits the rational design and synthesis of isoreticular structures, functionalized and/or expanded, that possess extra-large nanocapsule-like cages, high porosity, and potential for gas separation and storage, among others. Thus, tbo-MOF serves as an archetypal tunable, isoreticular MOF platform for targeting desired applications. © 2011 American Chemical Society.
SponsorsThis work is dedicated to the memory of I. Dale Shellhammer (1924-2010). The authors gratefully acknowledge funds from NSF (DMR 0548117) and KAUST as well as beamline 151D-C of ChemMatCARS Sector 15 at APS, ANL (DOE DE-AC02-06CH11357, NSF CHE-0822838).
PublisherAmerican Chemical Society (ACS)