DFG Research Grant

​Title: "Neutral and cationic Metallaphosphenes of Group 13 - Synthesis, Structure and Reactivity"Dfg Images

Goal: In this research project we want to develop a general route for the synthesis of neutral homo- and heterobimetallic metallaphosphenes L(X)MPM'L (M, M' = Al, Ga In) with π-bonding contribution as well as the corresponding cationic species [LMPML]+ and will investigate their capability in bond activation reactions of small molecules.

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DFG Research Grant

​Title: "Synthesis of electron-rich metal-substituted silylenes and their potential in small molecule bond activation"Dfg Images

Goal: The synthesis of metal-substituted silylenes [L(X)M]2Si and the corresponding carbonyl complexes [L(X)M]2Si-CO will be investigated and the distinct role of the ligands (L, X) and the metals (M) on their reactivity in bond activation reactions of small molecules will be evaluated. In addition, computational studies are planned in collaboration with Prof. Schreiner, Justus-Liebig-University Gießen, to gain a detailed understanding on their electronic structures.

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DFG Research Grant

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​Title: "Main group element complexes of group 15 with unusual electronic structures – synthesis, reactivity and reaction mechanism"

Goal: We will investigate the synthesis of group 13 metallapnictenes containing M=E double bonds, expecially those containing the heaviest group 15 elements, Sb and Bi. Particular attention is given to the reaction mechanism, which will be studied by in situ VT-NMR spectroscopy in order to identfy and finally stabilize reaction intermediates. In addition, the use of metallapnictenes in coordination chemistry and for small molecule activation will be investigated.

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DFG Research Grant

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Title: "Fabrication and characterization of integrated micro-thermoelectric coolers using chemical and physical vapor deposition"

Goal: In close collaboration with Dr. Gabi Schierning (IFW Dresden) we will study the deposition of high-quality thin films of thermoelectric materials and their use in micro-thermoelectric coolers. The films will be either deposited by use of the MOCVD process, which uses metal organic (single source) precursors, or by physical vapor deposition (PVD). The characterization of the thermoelectric properties and the fabrication of Peltier coolers will be investigated by the Schierning group.

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DFG Transregional Collaborative Research Centre CRC/TRR 247 "Heterogeneous Oxidation Catalysis in the Liquid Phase – Materials and Mechanism in Thermal, Electro- and Photocatalysis"

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Title: "Synthesis of Spinel-Type Materials with Tailored Composition and Morphology", Project C03

Goal: Structurally and morphologically well-defined spinel-type cobalt ferrites CoxFe3−xO4 (x = 0–3) will be synthesized by thermal decomposition of molecular precursors in organic solvents. The chemical composition will be systematically varied and the nanoparticle size and shape and, as a consequence, their real surface and defect structure, will be precisely adjusted.

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DFG Research Grant

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Title: "Verification of a new concept for stabilizing radicals with elements of group 15 and studies concerning their use in one electron transfer reactions"

Goal: The stabilization of reactive group 15 element radicals by coordination of an electropositive metal fragment L(X)M (M = Al - In) will be studied. Reaction mechanism will be studied by in situ 1H-NMR spectroscopy and the structure of the radicals will be characterized by EPR, single crystal X-ray diffraction and quantum chemical calculations. In addition, electrochemical studies (SET) as well as single electron transfer (SET) and small molecule activation reactions will be investigated.

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DFG Priority Program 1708 "Material Synthesis near Room Temperature"

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Title: "Low-temperature Synthesis of Thermoelectric Materials by Thermal Decomposition of Tailor-made Metal Organic Precursors in Ionic Liquids"

Collaborateur: Dr. G. Schierning, IWF Dresden

Goal: New synthetic routes to improved thermoelectric V2VI3 materials will be developed by treatment of specific metal organic precursors in ionic liquids by microwave irradiation. The most important thermoelectric properties such as Seebeck coefficient, power factor as well as thermal and electrical conductivity will be determined by state-of-the-art techniques.

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DFG Priority Program 1807 "Control of London Dispersion Interactions in Molecular Chemistry"

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Title: "Combined Quantum Chemical and Experimental Study on Metal-Metal Interactions of Heavy Group15 and Group16 Compounds"

Collaborateur: Prof. Dr. G. Jansen, University of Duisburg-Essen

Goal: The suitability of organometallic compounds containing the heaviest elements of groups 15 (Sb, Bi) and 16 (Se, Te) for the generation of high-density dispersion energy donors (DEDs) will be investigated by using an intertwined experimental and theoretical strategy, combining quantum chemical prediction, synthesis, and X-ray structural analysis of interacting moieties.

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​International Max Planck Research School RECHARGE

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Structured doctoral training and excellent research conditions - this is what the International Max Planck Research Schools stand for. IMPRS-RECHARGE, whichis a collaboration between Ruhr-University Bochum, University of Duisburg-Essen, University of Bonn, MPI CEC and MPI für Kohleforschung, focuses on interdisciplinary research between chemistry and physics with an emphasis on catalytic mechanisms, physical-chemical analysis and energy topics. Scientific challenges shall be looked at from different angles. Furthermore the combination of theory and practice is a vital aim of the IMPRS-RECHARGE.

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