TY  - JOUR
AU  - Karadeniz, Bahar
AU  - Žilić, Dijana
AU  - Huskić, Igor
AU  - Germann, Luzia S.
AU  - Fidelli, Athena M.
AU  - Muratović, Senada
AU  - Lončarić, Ivor
AU  - Etter, Martin
AU  - Dinnebier, Robert E.
AU  - Barišić, Dajana
AU  - Cindro, Nikola
AU  - Islamoglu, Timur
AU  - Farha, Omar K.
AU  - Friscic, Tomislav
AU  - Užarević, Krunoslav
TI  - Controlling the Polymorphism and Topology Transformation in Porphyrinic Zirconium Metal–Organic Frameworks via Mechanochemistry
JO  - Journal of the American Chemical Society
VL  - 141
IS  - 49
SN  - 1520-5126
CY  - Washington, DC
PB  - American Chemical Society
M1  - PUBDB-2019-05166
SP  - 19214 - 19220
PY  - 2019
N1  - © American Chemical Society
AB  - Tetratopic porphyrin-based metal−organicframeworks (MOFs) represent a particularly interestingsubclass of zirconium MOFs due to the occurrence ofseveral divergent topologies. Control over the targettopology is a demanding task, and reports often showproducts containing phase contamination. We demonstratehow mechanochemistry can be exploited forcontrolling the polymorphism in 12-coordinated porphyriniczirconium MOFs, obtaining pure hexagonal PCN-223and cubic MOF-525 phases in 20−60 min of milling. Thereactions are mainly governed by the milling additives andthe zirconium precursor. In situ monitoring by synchrotronpowder X-ray diffraction revealed that specificreaction conditions resulted in the formation of MOF-525 as an intermediate, which rapidly converted to PCN-223 upon milling. Electron spin resonance measurementsrevealed significant differences between the spectra ofparamagnetic centers in two polymorphs, showing apotential of polymorphic Zr-MOFs as tunable supports inspintronics applications.
LB  - PUB:(DE-HGF)16
C6  - pmid:31747754
UR  - <Go to ISI:>//WOS:000502687800005
DO  - DOI:10.1021/jacs.9b10251
UR  - https://bib-pubdb1.desy.de/record/429646
ER  -