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SUMMARY:The Evolution of Electronic Complexity in Biology: Advanced X-ray 
 Spectroscopic Studies of Iron Sulfur Clusters
DTSTART:20210304T171500
DTEND:20210304T190000
DTSTAMP:20260929T050146Z
UID:4439b8fd7f1bfaaa215a58e4d60c1bb3ac6b43509e0393dc4e5585a8
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Serena DeBeer\nMax Planck Institute/MPI  for Chemical E
 nergy Conversion\nMühlheim\, GERMANY\nThe Evolution of Electronic Complex
 ity in Biology: Advanced X-ray Spectroscopic Studies of Iron Sulfur Cluste
 rs\n\nSerena DeBeer\n\nMax Planck Institute for Chemical Energy Conversion
 \, Stiftstr. 34-36\, Mülheim an der Ruhr\, D-45470\, Germany\ne-mail: ser
 ena.debeer@cec.mpg.de\n\nIron sulfur proteins are ubiquitous in nature\, p
 erforming essential roles in electron transfer processes\, redox chemistry
 \, regulatory sensing and catalysis. The metal active sites of these prote
 ins range from simple single iron sites to complex eight iron clusters. Pe
 rhaps the most complex iron sulfur cluster that has been identified to dat
 e is the iron molybdenum cofactor (or FeMoco) of nitrogenase\, which is ca
 pable of cleaving the strong triple bond of dinitrogen. The fundamental qu
 estion that arises is how does nature evolve complexity in order to enable
  challenging transformations? In our view\, a deeper understanding of the 
 complex geometric and electronic structure of iron sulfur clusters require
 s the pursuit of novel experimental approaches for integrating their elect
 ronic structure in a detailed and quantitative fashion. To this end\, we a
 re applying both 2p3d and 1s3p resonant inelastic X-ray scattering (2p3d R
 IXS)\, in order to obtain deeper insights into the electronic structure of
  these important clusters. These data provide an experimental measure of t
 he d-d transitions and allow for more detailed insights into the nature of
  the multiplet structure. The utility of these methods for understanding t
 he electronic structure of nitrogenase will be highlighted. The challenges
  that RIXS spectroscopy presents for theoretical modeling will also be dis
 cussed.\n\n\n\n \n\n\n 
LOCATION:Zoom https://epfl.zoom.us/j/98057582302
STATUS:CONFIRMED
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