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Metal-organic framework compounds (MOFs) consist of inorganic and organic groups and are characterised by a large number of pores into which other molecules can be incorporated. MOFs are therefore interesting for many applications, for example for the storage of gases, but also for substance separation, sensor technology or catalysis. Some of these MOF structures react to different guest molecules by changing their structures. They are thus considered switchable.
One of these is "DUT-8", a material that has now been studied at the MX beamlines of BESSY II. "MOF crystals can be analysed very well at the MX beamlines," says HZB expert Dr. Manfred Weiss, who heads the MX team. "MOF crystals have many things in common with protein crystals. For example, both are interspersed with large pores, which are filled with liquid in the protein crystals, while those in MOFs provide space for guest molecules," Weiss explains.