Zukünftige Termine

Events die der OC oder GDCh zuzuordnen sind.
  • 2024-04-16T16:00:00+02:00
  • 2024-04-16T17:00:00+02:00
April 16 Dienstag

16.04.2024 von 16:00 bis 17:00

Quantum Travellers – the Role of the Radical Pair Mechanism in Avian Magnetoreception Here we report that the photochemistry of cryptochrome 4 from the night-migratory European robin (Erithacus rubecula, ErCry4) is indeed magnetically sensitive in vitro, and compare the results to those found for Cry4 from two non-migratory bird species, chicken and pigeon. Site-specific mutations of ErCry4 in combination with Electron Paramagnetic Resonance studies are used to demonstrate the roles of four successive flavin-tryptophan radical pairs in generating magnetic field effects and in stabilising potential signalling states. Reference: Xu J. et al., Nature, 2021, 594, 535-540.

  • 2024-04-30T17:00:00+02:00
  • 2024-04-30T18:00:00+02:00
April 30 Dienstag

30.04.2024 von 17:00 bis 18:00

Making, Seeing, and Using Subvalent Nitrogen Species Direct C H amination chemistry via electrophilic subvalent nitrogen intermediates could radically simplify access to nitrogen containing small molecules by providing the chemical tools to selectively convert ubiquitous C H bonds to valuable C N bonds At present, challenges in chemoselectivity sustainability, and synthetic versatility prevent realization of the synthetic potential of C H amination.This talk will describe recent efforts from the Powers Laboratory that advance 1 new strategies to structurally characterize transient intermediates in C H functionalization reactions, 2 novel metal free approaches to the sustainable generation of strong oxidants needed in C H functionalization reactions, and 3 bifunctional reagent platforms that enable rapid elaboration of the primary products of C H amination Future directions and challenges will be discussed.

  • 2024-05-21T17:00:00+02:00
  • 2024-05-21T18:00:00+02:00
Mai 21 Dienstag

21.05.2024 von 17:00 bis 18:00

Ligand Based C-H Bond Weakening for Synthesis and Electrocatalysis with Earth-Abundant Metals The selective, efficient, and sustainable activation of carbon-hydrogen bonds continues to be a critical area of research. Current synthetic methodologies heavily rely on transition metal catalysts to mediate the reactivity of C-H bonds for making medicines, fuels, agrochemicals, and materials. Broadly speaking, we are interested in leveraging C-H bonds housed within chelating ligand frameworks to understand the fundamentals of C-H activation and discover new (electro)catalytic transformations.

  • 2024-05-26T15:30:00+02:00
  • 2024-05-29T12:00:00+02:00
Mai 26 Sonntag

26.05.2024 15:30 bis 29.05.2024 12:00

KOPO 2024 CONJUGATED OLIGOMERS AND POLYMERS 12th Workshop May 26-29, 2024 Physikzentrum Bad Honnef

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