The modulator driven polymorphism of Zr(IV) based metal-organic frameworks
Publikation: Beitrag in Fachzeitschrift › Forschungsartikel › Beigetragen › Begutachtung
Beitragende
Abstract
The reaction of ZrCl4 and 2,5-thiophenedicarboxylic acid (H2tdc) in the presence of trifluoroacetic acid (Htfa) as modulator results in the formation of the new metal-organic framework (MOF) named DUT-126 (DUT= Dresden University of Technology). The nature and concentration of modulators are found to be decisive synthetic parameters affecting the topology of the formed product. DUT-126 (hbr) extends the series of polymorphs differing in topology, namely DUT-67 (reo), DUT-68 (bon) and DUT-69 (bct) to four, where DUT-67 and DUT-68 show the same eight-connected secondary building units as in DUT-126. In DUT-126, linker molecules have a peculiar orientation, resulting in hbr topology, which is described for the first time in this work for MOFs. DUT-126 contains three pore types, including two micropores surrounding mesoporous channels. DUT-126 is stable against hydrolysis and features permanent porosity with a specific surface area of 1297 m2 g-1 and a total pore volume of 0.48 cm3 g-1, calculated from the nitrogen physisorption isotherm measured at 77 K. This article is part of the themed issue 'Coordination polymers and metal-organic frameworks: materials by design'.
Details
Originalsprache | Englisch |
---|---|
Aufsatznummer | 27 |
Fachzeitschrift | Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
Jahrgang | 375 |
Ausgabenummer | 2084 |
Publikationsstatus | Veröffentlicht - 13 Jan. 2017 |
Peer-Review-Status | Ja |
Externe IDs
PubMed | 27895257 |
---|
Schlagworte
ASJC Scopus Sachgebiete
Schlagwörter
- 2,5-thiophenedicarboxylic acid, Metal-organic framework, Polymorphism, Topology, Zirconium