Projects (22)

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  • Activation of SF6 at Rhodium and Platinum Complexes

    Braun, Thomas, Prof. Dr. (Inorganic Chemistry)

    Duration of Project: 03/2019 - 02/2022

    Financer: DFG: Sachbeihilfe

    The proposal deals with the activation of SF6 at rhodium and platinum compounds. Based on stoichiometric model reactions and mechanistic studies, the development of catalytic processes is envisaged. For the degradation or derivatization of SF6 at rho ...

  • CRC 1078/1: Structural Basis of Proton Release in Water Oxidation by Photosystem II (SP A05)

    Zouni, Athina, (Experimental Biophysics)

    Duration of Project: 01/2013 - 03/2021

    Financer: DFG: Sonderforschungsbereich - Beteiligungen

    In oxygenic photosynthesis, water is oxidized and dioxygen is formed at the Mn4Ca complex of photosystem II (PSII), a 750 kDa protein-cofactor complex embedded in the thylakoid membrane of plants and cyanobacteria. Reliable structural models of PSII ...

  • CRC 1109 / 1 : Understanding of Metal Oxide/Water Systems at the Molecular Scale. Structural Evolution, Interfaces, and Dissolutions

    Limberg, Christian, Prof. Dr. (Inorganic and General Chemistry I)

    Duration of Project: 04/2014 - 12/2017

    Financer: DFG: Sonderforschungsbereich

    The Collaborative Research Centre 1109 is an interdisciplinary research platform bringing together scientists from four universities and three non-university institutions. It comprises 18 research projects led by 23 principal investigators (PIs) with ...

  • CRC 1349/1: Controlling Fluorination Reactions by Hydrogen-Bridges in the Coordination Sphere of Au and Pt Complexes (SP A01)

    Braun, Thomas, Prof. Dr. (Inorganic Chemistry)

    Duration of Project: 01/2019 - 12/2022

    Financer: DFG: Sonderforschungsbereich - Beteiligungen

    In the subproject A1|Braun, hydrogen bonds in the coordination sphere of gold and platinum complexes will be used to develop hydrofluorination or difluorination reactions with HF sources or XeF2, respectively. The Fluorospecific Interactions will all ...

  • CRC 1349/1: Cooperating Lewis Pairs Based on Fluorinated Bismuth and Aluminium Acceptor Moieties (SP B01)

    Limberg, Christian, Prof. Dr. (Inorganic and General Chemistry I)

    Duration of Project: 01/2019 - 12/2022

    Financer: DFG: Sonderforschungsbereich - Beteiligungen

    Fluoride and fluorinated organic and inorganic residues will be utilized to create Lewis-acidic bis-muth and aluminium centres linked via organic spacer units (xanthene/dibenzofurane) to phos-phane or electron-rich transition metal moieties. These co ...

  • CRC 1349/1: Fluorinated Aluminum Compounds as Lewis-Acids for the Activation of Small Molecules (SP B04)

    Braun, Thomas, Prof. Dr. (Inorganic Chemistry)

    Duration of Project: 01/2019 - 12/2022

    Financer: DFG: Sonderforschungsbereich - Beteiligungen

    In the subproject B4|Braun/Riedel small molecules such as HSiEt3, HGeEt3 or H2, and FSiEt3, FGeEt3, HF or F2 will be activated at the nanoscopic aluminum chloro fluoride ACF (AlClxF3-x, x = 0,05-0,30) as well as at molecular aluminum pentafluoroortho ...

  • CRC 1349/1: Indigo Switch for the Quantification of Fluorine-Specific Interactions (SP C01)

    Hecht, Stefan, Prof. (Organic Chemistry and Functional Materials)

    Duration of Project: 01/2019 - 12/2022

    Financer: DFG: Sonderforschungsbereich - Beteiligungen

    In this project indigo derivatives with (partially) fluorinated residues will be synthesized and the equilibrium (ratio of E and Z isomers) as well as the thermal half-life of the photogenerated meta-stable Z isomer will be measured under various con ...

  • CRC 765/3: Spacer Structure (SP A03)

    Hecht, Stefan, Prof. (Organic Chemistry and Functional Materials)

    Duration of Project: 01/2008 - 12/2019

    Financer: DFG: Sonderforschungsbereich - Beteiligungen

    In this project functional host-guest systems will developed by exploiting multivalent and cooperative effects in combination with photoswitchable non-covalent interactions. Thus light will be used to externally control the supramolecular polymerizat ...

  • Design of Photoswitchable Organocatalysts, Their Immobilization, and Application to Chemical Surface Patterning

    Hecht, Stefan, Prof. (Organic Chemistry and Functional Materials)

    Duration of Project: 03/2007 - 06/2009

    Financer: DFG: Sachbeihilfe

    The combination of photochromism and molecular property changes promises an exquisite external control over chemical function with high temporal and spatial resolution. The development of photoswitchable catalysts, which possess two optically indepen ...

  • Elucidation of the photo-assembly mechanism of the light-driven water oxidizing complex in photosystem II

    Zouni, Athina, PD Dr. (Honorary Chairs / Professors by Special Appointment / Part-Time Lecturers)

    Duration of Project: 11/2017 - 12/2018

    Financer: DFG-Exzellenzinitiative: Cluster

    Oxygen photosynthesis in green plants, algae and cyanobacteria is catalyzed by the two large membrane protein complexes Photosystem I (PSI) and Photosystem II (PSII). Both complexes contain a reaction center (RC) that conducts a light-driven charge t ...

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