Who: Prof. Paolo Melchiorre, ICIQ - Avinguda Països Catalans, 16 43007 (Tarragona, Spain), ICREA - Pg. Lluís Companys 23, 08010 (Barcelona, Spain)
When: Dec 18 2019, 1pm
Where: STEM Complex, room 224
Ce séminaire est présenté en anglais uniquement.
The chemical reactivity of electronically excited molecules differs fundamentally from that in the ground state. This is the underlying reactivity concept of photochemistry,1 which has traditionally allowed the development of unique chemical transformations not achievable via conventional ground-state pathways.2 For example, an excited-state molecule is both a better electron-donor (i.e. a better reductant) and electron-acceptor (i.e. a better oxidant) than in the ground state. This explains why the light excitation of organic molecules can unlock unconventional reactivity manifolds. In this context, our laboratory has been exploring the potential of some organocatalytic and organometallic intermediates to directly reach an electronically excited state upon visible-light absorption to then switch on novel catalytic functions that are unavailable to ground-state organocatalysis.3 Studying the mechanism of these photochemical approaches allowed us to expand the synthetic possibilities offered by the excited-state reactivity of organocatalytic intermediates.4
- Balzani, V.; Ceroni, P.; Juris, A. Eds. in Photochemistry and Photophysics, Wiley-VCH, 2014.
- Albini, A.; Fagnoni, M. Eds. in Handbook of Synthetic Photochemistry, Wiley-VCH, 2010.
- (a) Arceo, E.; Jurberg, I. D.; Álvarez-Fernández, A.; Melchiorre, P. Nature Chem. 2013, 5, 750–756. (b) Murphy, J. J.; Bastida, D.; Paria, S.; Fagnoni, M.; Melchiorre, P. Nature 2016, 532, 218–222.
- Silvi, M.; Melchiorre, P. Nature 2018, 554, 41-49.
- 1999, MSc in Chemistry - University of Bologna, Italy
- 2000-2003, PhD in Chemical Sciences - University of Bologna, Italy
- 2002, Research period - University of Århus, Denmark
- 2010-2012, Postdoctoral fellow - University of Bologna, Italy
- 2007 – Assistant Professor - University of Bologna, Italy
- 2009 – ICREA Research Professor at ICIQ – Tarragona, Spain
- Asymmetric Photochemistry;
- Radical Chemistry
- 2007: “G. Ciamician” Gold Medal of the Italian Chemical Society
- 2008: “Liebig Lecturer” of the German Chemical Society
- ERC Starting Grant (2011) and ERC Consolidator Grant (2015)
- 2016: Prize for Scientific Excellence (Royal Spanish Chemical Society, RSEQ)
- 2019: “Giorgio Modena” Medal of the Italian Chemical Society