Dresden 2009 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 39: POSTERS Colloids and Liquids
CPP 39.26: Poster
Donnerstag, 26. März 2009, 17:00–19:30, P3
Directed Growth of Metal Organic Frameworks — •Florian Wieland1, Michael Paulus1, Christian Sternemann1, Florian Evers1, Osama Shekhah2, Hui Wang2, Metin Tolan1, and Christof Wöll2 — 1Fakult'at Physik/Delta, TU Dortmund, D-44221 Dortmund, Germany — 2Ruhr-Universit'at Bochum, Physikalische Chemie I, D-44780 Bochum Germany
Metal organic frameworks (MOFs) are a new class of advanced materials which may be used for various applications. In contrast to the usual synthesis protocol a new approach for the synthesis of MOFs was developed in order to investigate the dynamics and the process of the structural formation. Thin films of the MOF [CU3BTC2(H2)O)n] (HKUST-1) are grown by layer-by-layer deposition on top of functionalized organic surfaces which serve as a two dimensional nucleation site [1]. The samples were investigated by x-ray diffraction at the synchrotron source DELTA. Two dimensional scattering patterns were obtained giving information about the structural order of the films. Comparing x-ray diffraction data of the corresponding bulk material with our data we find that layers of HKUST-1 grow in different preferred directions depending on the functional group of the self-assembled monolayer. The structural behavior under temprature load was investigated up to a temprature of 250∘C. The data shows a change of the HKUST-1 orientation.
[1] O. Shekhah et al, J.AM.CHEM.SOC. 2007,129,15118-15119