|
Type |
Symposium |
Area |
Recent Trends in Metal-Organic Frameworks |
Room No. |
Room 401+402 |
Time |
THU 15:40-16:10 |
Code |
INOR1-1 |
Subject |
Symmetry-Guided Syntheses of Mixed-Linker Zr-MOFs with Precise Linker Locations |
Authors |
Myoung Soo Lah Department of Chemistry, Ulsan National Institute of Science and Technology, Korea |
Abstract |
The construction of multifunctional mixed-linker metal-organic frameworks (MOFs) with precise linker locations in the framework is a challenging task. A series of new Zr-MOFs with 12-c fcu topology containing the two linkers with different linker symmetries and lengths at well-defined locations are prepared. While one-pot reactions of zirconium metal ion with mixtures of dicarboxylate heterolinkers result in only hybrid Zr-MOFs with fcu topology, symmetry-guided stepwise reactions produce a series of Zr-MOFs with fcu topology containing two different dicarboxylate linkers with precise locations in the framework. The symmetry-guided insertions of linear terephthalic acid (H2BDC) derivatives with mmm symmetry into the mmm symmetry-sites of the flexible 8-c bcu Zr-MOF (termed ZRN-bcu) composed of zigzag 2,6-naphthalenedicarboxylic acid with 2/m symmetry result in a series of new Zr-MOFs with 12-c fcu topology. Even though the length of the BDC2- derivatives is much shorter than the distance between the unlinked closest neighboring Zr-clusters in ZRN-bcu, the symmetry-matching BDC2 derivatives are induced-fit into the framework of ZRN-bcu to form a series of stable 12-c fcu Zr-MOFs containing two different dicarboxylate linkers at well-defined locations. |
E-mail |
mslah@unist.ac.kr |
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