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Research Group Powell

Research Group Powell
contact:

Prof. Dr. Annie K. Powell

Inorganic chemistry

ferromagnetisch gekoppeltes Mn19 Aggregat
Annie Powell
Prof. Dr. Annie K. Powell

 

 

Members:

              

                                    Dr. Ahmed Soliman Abouelwafa

Dr. Manase Ako Ayuk

Dr. Andreas Eichhöfer

Dr. Olaf Fuhr

Priv.- Doz. Dr. Carsten von Hänisch

Dr. George E. Kostakis

Dipl. Chem. Andreas Kracke

Nico Metz

Dr. Heino Sommer

Sven Stahl

Dipl. Chem. Stephan Traut

Emma Tröster

 

Previous Group Leader                                   

                                    Prof. Dr. D. Fenske

 

Research Topics

We are an inorganic chemistry group at the Institute of Nanotechnology Forschungszentrum Karlsruhe. We aim to produce molecular building blocks which can be processed into nanoscale devices or else already show useful properties at the nanoscale level. In order to characterise these building blocks we gain precise structural information at atomic resolution using X-ray diffraction as well as measuring a range of physical properties such as magnetism and electron transport. The systems under study include ligand-stabilised metal cluster compounds; metal-organic frameworks (MOFs); the use of crystal engineering to tailor properties and build multifunctional materials.  

 

Outlook

The compounds we synthesise will be further processed to build into devices. Thermal processing allows access to materials with a range of possible applications, such as anode materials for batteries or else stoichiometrically precise oxide nanoparticles. The deposition of nanoclusters as films or ordered arrays allows for the addressing of systems.

 

Current Projects

I. Dr. Ahmed Soliman Abouelwafa

Synthesis, characterization and photochemistry of viologen-cyanometallate charge transfer complexes

 

II. Dr. Manase Ako Ayuk

Molecular magnetic materials

 

III. Dr. George E. Kostakis

Coordination Polymers, Crystal Engineering and Water structures

 

IV. Andreas Eichhöfer, Olaf Fuhr, Heino Sommer, Emma Tröster, Nico Metz

The research target is the synthesis of metal chalcogenide cluster molecules. Main issues are the investigation of the quantum size effect, the functionalisation of the ligand shell and the fabrication of metastable nanoscopic binary and ternary solids from cluster molecules through low temperature thermolysis.

 

V. PD Dr. C. von Hänisch, Dipl. Chem. S. Traut, Dipl. Chem. A. Kracke

Investigation of the structural variety and the bonding properties of molecular main group element compounds as well as there use in coordination chemistry.

For further information see:  http://www.aoc.uni-karlsruhe.de/1061.php