Zukünftige Termine
- 2024-12-03T14:30:00+01:00
- 2024-12-03T16:00:00+01:00
BIGS Chemistry Lecture: Dr. Markus Bursch
Dr. Markus Bursch, FACCTs Visions to FACCTs - Working at a Quantum Chemistry Start-Up In the last decade, quantum chemistry became an integral part of modern chemical sciences. It represents a valuable tool and methodological toolkit to investigate a vast space of chemical compounds, their properties, and possible applications. While QM is still mostly considered a specialists-only field, we at FACCTs work on software solutions to bring convenient QM to every scientist, being it theoretical, computational, or experimental chemists. In my talk, I will give some insights into my time at FACCTs, what we are doing, and how every chemist may profit from our work.
- 2024-12-10T17:00:00+01:00
- 2024-12-10T18:30:00+01:00
GDCh-Kolloquium: Professor Dr. Karl Gademann, Universität Zürich
Professor Dr. Karl Gademann, Universität Zürich Microbiome Metabolites: Syntheses and Surprises The microbiome is composed of different microorganisms such as bacteria that live on or in a complex host, such as e.g. humans or plants. Estimates suggest that bacterial cells outnumber their human host cells by as much as 10:1, leading directly to the question: Who is in control? Interactions, and ultimately control of the microbiome with their host might involve the trading and trafficking of chemicals. We will present recent studies from our group investigating small molecule chemicals that serve as signals for bacterial communication, cyclitols for chemical offense, and a recent total synthesis of peyssonnoside A which might be produced by the microbiome of red algae, complemented with other terpene syntheses.
- 2024-12-17T11:15:00+01:00
- 2024-12-17T13:00:00+01:00
OC-Kolloquium: Prof. Dr. Alex Plajer, Universität Bayreuth
Prof. Dr. Alex Plajer, Universität Bayreuth Ring-Opening Terpolymerisation of Elemental Sulfur Waste via Lithium Catalysis Elemental sulfur, a waste product of the oil refinement process, represents a promising raw material for the synthesis of degradable polymers. We show that simple lithium alkoxides facilitate the polymerisation of elemental sulfur S8 with industrially relevant propylene oxide (PO) and CS2 (a base chemical sourced from waste S8 itself) to give poly(monothiocarbonate-alt-Sx) in which x can be controlled by the amount of supplied sulfur. The in situ generation of thiolate intermediates obtained by a rearrangement, which follows CS2 and PO incorporation, allows to combine S8 and epoxides into one polymer sequence that would otherwise not be possible.
- 2025-01-07T17:15:00+01:00
- 2025-01-07T19:00:00+01:00
GDCh: Junge Forscher/innen der Bonner Chemie stellen sich vor
GDCh-Kolloquium: Junge Forscherinnen und Forscher der Bonner Chemie stellen sich vor ..............................
- 2025-01-28T17:00:00+01:00
- 2025-01-28T18:30:00+01:00
GDCh-Kolloquium: Prof. Dr. Erwin Reisner, University of Cambridge
Prof. Dr. Erwin Reisner, University of Cambridge, UK: Sunlight-Powered Circular Chemistry Solar panels are well established to produce electricity as photovoltaic cells and are already in advanced development to photo-catalyse overall water splitting to produce green hydrogen as artificial leaves or photocatalyst sheets. This presentation will introduce solar chemistry panels as an emerging technology to enable sunlight-powered circular carbon chemistry. Our progress in designing and constructing prototype solar devices for the direct conversion of carbon dioxide as well as the coupling to the valorisation of biomass and plastic waste streams into renewable fuels and higher-value chemicals will be presented.
- 2025-02-14T10:15:00+01:00
- 2025-02-14T12:00:00+01:00
BIGS Chemistry Lecture: Dr. Simon Rickert
Dr. Simon Rickert, ETH Zürich (Title to be announced) ...............................................
- 2025-02-18T11:15:00+01:00
- 2025-02-18T13:00:00+01:00
OC-Kolloquium: Prof. Dr. Amandine Guérinot, EPSCI Paris
Prof. Dr. Amandine Guérinot, EPSCI Paris: Earth-abundant metal (photo)catalysis: radical games Over the last decades, earth-abundant metal complexes (Fe, Co, Cu, Ni) emerged as an attractive alternative to precious metal catalysts, especially for C-C bond formation through cross-coupling reactions. Beside their natural abundance, iron, cobalt, nickel or copper catalysts exhibit a complementary reactivity compared to other transition metal catalysts. In particular, when 2e- processes are favored in Pd-catalyzed cross-coupling reactions, single-electron transfers are prevalent when first row transition metals are used. The transient formation of radical intermediates thus marked a divergence of reactivity opening new synthetic opportunities.