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Large pores
Date:12/5/2012

cal analysis by the group of Professor Heine of Jacobs University Bremen revealed that the interactions between the organic rods are responsible for the stability of these frameworks with large pores. In the Nature Scientific Reports journal, the researchers from IFG and the Institute of Organic Chemistry (IOC) of KIT, Jacobs University Bremen, and other institutions in Mainz, Bielefeld, and Thuwal/Saudi Arabia present a series of structurally related, highly symmetric frameworks with very large pores, which were produced by means of the LPE method.

These novel MOFs that are referred to as "SURMOFs 2" are produced by synthesizing various special organic molecules of variable lengths. The pore size of the new metal-organic frameworks is three times three nanometers. Hence, the pores have sufficient space for small proteins. Now, the researchers are working on increasing the length of the organic rods in order to be able to store even larger proteins and possibly also metallic nanoparticles in the next step. This will allow for interesting applications in optics and photonics.

"We think that SURMOFs 2 will have considerable potentials as optical materials. In the next step, we plan to produce heterolayers, in which different materials will be stacked on top of each other," explains Professor Christof Wll from the IFG. "The application potential of metal-organic frameworks can hardly be predicted at the moment. MOFs are composed structures. Chemists have learned how the components may be combined in a framework. Now, it will be important to use the variety of molecules known in chemistry to develop new materials with new application potentials that might revolutionize catalysis, sensor technology, or logical storage materials. Computer simulations are ideal to determine the components to be used for producing frameworks with optimum properties at the laboratory," explains Professor Thomas Heine from Jacobs University Bremen.


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Contact: Monika Landgraf
presse@kit.edu
49-721-608-47414
Helmholtz Association of German Research Centres
Source:Eurekalert  

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