Project Details
Projekt
Gate opening behaviour of structurally flexible porous coordination polymers - characterization by combined X-ray diffraction and sorption studies
Subject Area
Solid State and Surface Chemistry, Material Synthesis
Inorganic Molecular Chemistry - Synthesis and Characterisation
Inorganic Molecular Chemistry - Synthesis and Characterisation
Term
from 2015 to 2019
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 270107402
Out of the class of porous coordination polymers (metal-organic frameworks, MOFs) some MOFs exhibit so-called gate opening behaviour which is dependent on the degree of loading of the pores with guest molecules. In these structurally flexible materials the crystal structure responds on external stimuli such as differences in presence of certain gases, and therefore they are regarded as promising switchable materials with various potential applications. However, up to now only for a few examples it is known, how their structures change. One aim of this project are detailed investigations of structural changes in order to understand origin and consequences of the gate opening effect. For that purpose a combination of sorption experiments, including pure and mixed gas sorption studies and break through experiments, and structure determination studies will be performed based on X-ray powder diffraction patterns collected at the conditions of the sorption studies. Besides that, it is an central task within the project, to improve the home-built in situ (sorption / X-ray diffraction) sample holder for our laboratory diffractometer in order to extend the experimental possibilities for investigation of structurally flexible materials - independent of access to synchrotron beam lines. The proposed project requires a close cooperation of the involved research groups with their individual expertise in sorption and structural characterization.
DFG Programme
Research Grants
International Connection
Bulgaria
Cooperation Partner
Professor Plamen K. Georgiev, Ph.D.
