Journal Article

PUBDB-2019-05166

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Controlling the Polymorphism and Topology Transformation in Porphyrinic Zirconium Metal–Organic Frameworks via Mechanochemistry

Karadeniz, B. ; Žilić, D. ; Huskić, I. ; Germann, L. S. ; Fidelli, A. M. ; Muratović, S. ; Lončarić, I. ; Etter, M.DESY* ; Dinnebier, R. E.Extern* ; Barišić, D. ; Cindro, N. ; Islamoglu, T. ; Farha, O. K. ; Friscic, T.Extern* ; Užarević, K.

2019
American Chemical Society Washington, DC

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Please use a persistent id in citations: doi:10.1021/jacs.9b10251  doi:10.3204/PUBDB-2019-05166

Abstract: 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.

Note: © American Chemical Society

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)
2. Experimentebetreuung PETRA III (FS-PET-D)

Research Program(s):

1. 6G3 - PETRA III (POF3-622) (POF3-622)
2. 6213 - Materials and Processes for Energy and Transport Technologies (POF3-621) (POF3-621)
3. FS-Proposal: I-20150196 (I-20150196) (I-20150196)

Experiment(s):

1. PETRA Beamline P02.1 (PETRA III)

Appears in the scientific report 2019

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Database coverage:
; ; BIOSIS Previews ; Clarivate Analytics Master Journal List ; Current Contents - Life Sciences ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF >= 10 ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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