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Reaktive und strukturell ungewöhnliche Organokomplexe mit Uebergangsmetallen

English title Reactive and Structurally Unusual Organo Transition Metal Complexes
Applicant Berke Heinz
Number 116285
Funding scheme Project funding (Div. I-III)
Research institution Institut für Chemie Universität Zürich
Institution of higher education University of Zurich - ZH
Main discipline Inorganic Chemistry
Start/End 01.04.2007 - 30.09.2009
Approved amount 579'021.00
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Keywords (6)

Transition metal complexes; Organometallic Chemistry; homogeneous catalysis; olefin metathesis molecular electronics; organometallic complexes; transition metals

Lay Summary (English)

Lay summary
This project aims at the development of specific areas of organometallic chemistry. A major area is devoted to reactive transition metal hydrides and is directed towards the general chemical aspects of energy and hydrogen technologies. Homogeneous transition metal catalysis of hydrogenations and hydrosilations are sought to transform appropriate starting materials into valuable products. In the hydrogrogenation/hydrosiliation context we mainly consider those reaction pathways operating with heterolysis of H2 and R2SiH (“Ionic Hydrogenations and Hydrosilations”) with some emphasis on enantioselective reactions of prochiral substrates. The supporting role of hydrogen bonding co-catalysts is explored. Furthermore, specific research efforts are proposed to contribute to solutions for the old problem of homogeneous hydrogenation of CO and N2.

In a second section of this proposal our long-range search is continued to find appropriate organometallic systems suitable for single-electron-devices. This area focuses on a tuning of dinuclear organometallic compounds for certain electronic properties required for the construction of such electronically functional devices on the molecular level. Based on the simple fact that appropriate systems need to show relatively high stabilities the search of this proposal is extended to systems with stronger metal-carbon or metal-X bonds.

Finally, the reactive properties of various catalysts can considerably be improved by providing them with locally relatively high concentrations of the substrates close to a reactive site. Such microscopic storage devices for instance H2, hydrocarbons, CO, N2.… are naturally connected to research efforts on the storage of such molecules in appropriate molecular frameworks. Solid state metal-organic framework (MOF) have recently been shown to enable “scavenging” of small molecules. In this part of the project the access to new multinuclear cluster complexes with closed frameworks is studied providing extra weak forces for further stabilization of small molecules in cavities.
Direct link to Lay Summary Last update: 21.02.2013

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Associated projects

Number Title Start Funding scheme
126950 Reactive and Structurally Unusual Organo Complexes of Transition Metals 01.10.2009 Project funding (Div. I-III)
126950 Reactive and Structurally Unusual Organo Complexes of Transition Metals 01.10.2009 Project funding (Div. I-III)
107731 Reaktive und strukturell ungewöhnliche Organokomplexe mit Uebergangsmetallen 01.04.2005 Project funding (Div. I-III)