Chemical Society Reviews· 2014Q1· Review
Tuning the structure and function of metal–organic frameworks via linker design
- 2,233citations
- Q1SCImago
- 2014year
Short summary
This review highlights how designing the organic linkers used in metal-organic frameworks (MOFs) allows precise control over their structure and properties. By adjusting linker geometry, length, and functional groups, researchers can tune MOFs for specific applications.
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Key points
- MOF structure and porosity are primarily determined by the design of organic linkers.
- Adjusting linker geometry, length, ratio, and functional groups tunes MOF size, shape, and surface properties.
- Linker design enables MOFs with unprecedented surface area, pore aperture, molecular recognition, stability, and catalysis.
- Linkers are categorized by their connectivity (ditopic, tritopic, tetratopic, etc.) and type (metallo, N-heterocyclic).
AI-generated from the title and abstract; the full text is not read.
Abstract
Metal-organic frameworks (MOFs) are constructed from metal ions/clusters coordinated by organic linkers (or bridging-ligands). The hallmark of MOFs is their permanent porosity, which is frequently found in MOFs constructed from metal-clusters. These clusters are often formed in situ, whereas the linkers are generally pre-formed. The geometry and connectivity of a linker dictate the structure of the resulting MOF. Adjustments of linker geometry, length, ratio, and functional-group can tune the size, shape, and internal surface property of a MOF for a targeted application. In this critical review, we highlight advances in MOF synthesis focusing on linker design. Examples of building MOFs to reach unique properties, such as unprecedented surface area, pore aperture, molecular recognition, stability, and catalysis, through linker design are described. Further search for application-oriented MOFs through judicious selection of metal clusters and organic linkers is desirable. In this review, linkers are categorized as ditopic (Section 1), tritopic (Section 2), tetratopic (Section 3), hexatopic (Section 4), octatopic (Section 5), mixed (Section 6), desymmetrized (Section 7), metallo (Section 8), and N-heterocyclic linkers (Section 9).
The authors' abstract, as published at the source. Chemical Society Reviews, 2014 · DOI ↗
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Field: Inorganic Chemistry
Inorganic ChemistryChemistry