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UID:20250928T215853EDT-82960W605R@132.216.98.100
DTSTAMP:20250929T015853Z
DESCRIPTION:Via Zoom:  https://mcgill.zoom.us/j/97975485389\n\nAbstract:\n
 \nThe importance of transition metals (TMs) in modern catalysis cannot be 
 overstated. TM-based catalysts enable processes that are of tremendous hum
 an and economic importance\; they have innumerable applications in many in
 dustrial sectors. However\, the toxicity\, price and natural scarcity of m
 any elements that are used in TM catalysis fuel an interest for the develo
 pment of metal-free catalysts based on the main-group elements.\n\nHowever
 \, contrary to many catalytically relevant TM complexes\, classical main-g
 roup compounds do not possess the combination of empty and filled orbitals
  that is crucial for the complex electronic processes involved in the elem
 ental steps of catalytic cycles. The development of catalysts based on the
  p-block elements thus requires the design and application of unique strat
 egies. In this seminar\, I will present an approach for the rational desig
 n of such strategies: combining predictive computational calculations with
  a bottom-up experimental investigation of metal-free reactions. Results o
 btained through this method include the use of boron compounds for small-m
 olecule activation\, reduction processes\, organic functionalization react
 ions and polymerization of inorganic monomers. I will discuss systems that
  involve the combination of single and multiple active sites in order to m
 imic the electronic environment of TM complexes. Similarities and differen
 ces in the reactivity of main-group compounds and TM complexes will also b
 e highlighted.\n\nBio:\n\nProf. Marc-André Légaré was born in Morges\, Swi
 tzerland\, and grew up in Quebec City\, Canada. He received his Ph.D. degr
 ee from Université Laval in Quebec City\, Canada\, in 2015\, advised by Pr
 of. Frédéric-Georges Fontaine. He subsequently took up a NSERC postdoctora
 l fellowship in the group of Prof. Holger Braunschweig at the Julius-Maxim
 ilians Universität Würzburg\, in Germany.\n\nMarc-André is the author of o
 ver 30 publications and two patents\, including three papers as first auth
 or in the prestigious journal Science. His accomplishments include the dev
 elopment of metal-free C-H activation protocols and pioneering the field o
 f main group dinitrogen chemistry.\n\nHe has received a number of awards\,
  including the Star Student-Researcher Award from the Fond de Recherche Qu
 ébécois and the CAS Future Leader Award. He has been Assistant Professor o
 f Green Chemistry at 91Ö±²¥ since 2020.\n
DTSTART:20200901T170000Z
DTEND:20200901T183000Z
SUMMARY:Chemical Society Seminar: Marc-André-Légaré - Main-Group Metallomim
 etics:  A Computational - Experimental Approach for Metal-Free Catalysis a
 nd Nitrogen Fixation
URL:/chemistry/channels/event/chemical-society-seminar
 -marc-andre-legare-main-group-metallomimetics-computational-experimental-3
 23997
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