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Croatian researchers participate in discovery of new material

Author: mses
ZAGREB, March 25 (Hina) - An international team of researchers including Croatian scientists from the Rudjer Boskovic Institute have discovered a new unusual material named "katsenite", and the journal "Nature Communications" has reported about this discovery.

The discovery is the proof that mechanochemical synthesis enables the provision of new materials, the Zagreb-based Institute stated in a press release.

The team that discovered "katsenite", was led by Ivan Halasz from the Croatian institute as well as Tomislav Friscis of McGill University and researches from the Max Planck Institute and the European Synchrotron, CS in Grenoble.

"Chemical and physical transformations by milling are attracting enormous interest for their ability to access new materials and clean reactivity, and are central to a number of core industries, from mineral processing to pharmaceutical manufacturing. While continuous mechanical stress during milling is thought to create an environment supporting nonconventional reactivity and exotic intermediates, such speculations have remained without proof. Here we use in situ, real-time powder X-ray diffraction monitoring to discover and capture a metastable, novel-topology intermediate of a mechanochemical transformation. Monitoring the mechanochemical synthesis of an archetypal metal-organic framework ZIF-8 by in situ powder X-ray diffraction reveals unexpected amorphization, and on further milling recrystallization into a non-porous material via a metastable intermediate based on a previously unreported topology, herein named katsenite (kat). The discovery of this phase and topology provides direct evidence that milling transformations can involve short-lived, structurally unusual phases not yet accessed by conventional chemistry," reads the Abstract on this topic in "Nature Communications".

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