Journal
CHEMISTRY OF MATERIALS
Volume 25, Issue 5, Pages 739-744Publisher
AMER CHEMICAL SOC
DOI: 10.1021/cm303749m
Keywords
catenation; metal-organic frameworks; SALE; linker exchange
Funding
- U.S. Dept. of Energy, Office of Science, Basic Energy Sciences [DE-FG2-08ER15967]
- Defense Threat Reduction Agency [HDTRA1-10-1-0023]
- Polish Ministry of Science and Higher Education
- Royal Society (U.K.)
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Control over catenation in a pillared paddlewheel metal-organic framework was achieved via solvent-assisted linker exchange. The linker exchange was demonstrated on the noncatenated structure of DO-MOF, by using 4,4'-bipyridine (L4) and 4,4'-azobis(pyridine) (L5) as linkers, leading to noncatenated materials SALEM-3 and SALEM-4. The de novo synthesized analogues of SALEM-3 and SALEM-4 can only be obtained as 2-fold interpenetrated frameworks. The reaction progress of the linker exchange was monitored by NMR spectroscopy, and structure and framework catenation were characterized by powder X-ray diffraction and thermogravimetric methods.
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