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A metal-organic framework with covalently bound organometallic complexes
Kounosuke Oisaki1, Qiaowei Li, Hiroyasu Furukawa
1Center for Reticular Chemistry, Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, USA. oisaki@mol.f.u-tokyo.ac.jp
Journal of the American Chemical Society
|June 19, 2010
Summary
Researchers developed a new method for creating covalently linked organometallic complexes in metal-organic frameworks (MOFs). While initial attempts with IRMOF-76 failed, the IRMOF-77 structure successfully incorporated these complexes, demonstrating permanent porosity.
Area of Science:
- Materials Science
- Supramolecular Chemistry
- Coordination Chemistry
Background:
- Metal-organic frameworks (MOFs) offer tunable porous structures for various applications.
- Incorporating organometallic complexes into MOFs can enhance their functionality.
- Previous methods for covalent linkage within MOF pores have faced challenges.
Purpose of the Study:
- To develop a procedure for synthesizing covalently linked organometallic complexes within MOF pores.
- To investigate the feasibility of incorporating metalated linkers into MOF structures.
- To characterize the resulting MOF materials and their properties.
Main Methods:
- Synthesis of an N-heterocyclic carbene precursor with linker L0.
- Construction of MOF-5-type structures (IRMOF-76 and IRMOF-77).
- Characterization using single-crystal X-ray diffraction, porosity measurements, and coligand substitution studies.
Main Results:
- Attempts to form covalently bound organometallic complexes in IRMOF-76 were unsuccessful.
- A successful alternative method was developed using a metalated linker (L1) to form IRMOF-77.
- IRMOF-77 exhibited permanent porosity and demonstrated successful substitution of the pyridine coligand.
Conclusions:
- The study presents a viable strategy for creating covalently linked organometallic complexes within MOFs.
- IRMOF-77 serves as a successful example of a metalated MOF with potential for further functionalization.
- The findings open avenues for designing advanced MOF-based materials with tailored catalytic or electronic properties.
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