These are preliminary reports that have not been peer-reviewed. They should not be regarded as conclusive, guide clinical practice/health-related behavior, or be reported in news media as established information. For more information, please see our FAQs.
2 files

Controlling the Polymorphism and Topology Transformation in Porphyrinic Zirconium Metal-Organic Frameworks via Mechanochemistry

submitted on 16.09.2019, 11:43 and posted on 20.09.2019, 19:06 by Bahar Karadeniz, Dijana Žilić, Igor Huskić, Luzia S. Germann, Athena M. Fidelli, Senada Muratović, Ivor Lončarić, Martin Etter, Robert E. Dinnebier, Dajana Barišić, Nikola Cindro, Timur Islamoglu, Omar K. Farha, Tomislav Friscic, Krunoslav Uzarevic
The mechanochemical approach has been used here for preparation and polymorph resolution in porphyrinic MOF-525/PCN-223 zirconium metal-organic frameworks system, achieving pure target MOF phases in 30-60 minutes milling. In specific reaction condition, MOF-525 forms rapidly by milling but transforms into PCN-223, confirming it to be the kinetic phase in this polymorphic system. ESR measurements showed a strong effect of internal MOF structure on the spin structure of paramagnetic cations coordinated into porphyrin linkers, which show potential for these polymorphic MOFs in spintronics application.


Croatian Science Foundation Grant 4744

Croatian Science Foundation Grant 3168

Defense Threat Reduction Agency HDTRA1-19-1-0007

NSERC RGPIN-2017-06467

NSERC STPGP 521582-18


Email Address of Submitting Author


Ruder Boskovic Institute



ORCID For Submitting Author


Declaration of Conflict of Interest

Authors declare no conflict of interest.