Lunedì 15 settembre 2025 - Ore 11:00 - Aula 22
Dr.ssa Francesca Di Turo, recente vincitrice di uno starting grant ERC
  Seminario  

Martedì 16 settembre 2025 - Ore 14:30 - Aula 22
Prof. Matteo Palma - Department of Chemistry, Queen Mary University of London
  Seminario  

The controlled organization of individual molecules and nanostructures with nanoscale accuracy is key for the investigation of nanoscale and single-molecule events in optoelectronic, biosensing and biomimicking platforms. In this regard, we developed different strategies based on the selective functionalization of 0 dimensional (D; Quantum Dots), 1D (carbon nanotubes) and 2D (MoS2) based mixed-dimensional heterostructures towards the development of novel hybrids for single-molecule studies and different technological applications, from photo-responsive devices to nanoscale biosensing chips. We further employ DNA nanostructures as static and dynamic building blocks for the construction of the aforementioned functional nanohybrids, and for the fabrication of biomimetic nanoarrays that permit the multivalent investigation of ligand−receptor molecule interactions in cancer, with nanoscale spatial resolution and single-molecule control.

Venerdì 19 settembre 2025 - Ore 11:30 - Aula Magna
Prof. Rinaldo Poli, Laboratoire de Chimie de Coordination, Toulouse, France
  Seminario  

Homogeneous catalysis has advantages in terms of activities and selectivities, but suffers from poor catalyst recovery and recycle. An interesting approach for catalyst recovery is confinement onto a solid surface (heterogenized homogeneous catalysis) or in a different liquid phase (liquid/liquid biphasic catalysis). In the latter case, water is the most attractive catalyst phase. A large-scale, industrially implemented process based on an aqueous liquid/liquid biphasic protocol is the Rh-catalyzed hydroformylation of light olefins. Extension to higher olefins, however, is hampered by the insufficient olefin solubility in water, which limits mass transport. This problem can be alleviated by anchoring the catalyst in the hydrophobic core of micelles, where the water-insoluble substrates can migrate and accumulate at high concentrations. We have introduced a new catalyst support, which consists of core-crosslinked micelles with a hydrophilic shell and a hydrophobic core where the catalyst is firmly anchored. I’ll present the advantages, pitfalls and improvements of this support. I’ll describe the synthesis and characterization of the organized polymers and their application to aqueous biphasic transformations catalyzed by both molecular metal complexes and metallic nanoparticles

Venerdì 19 settembre 2025 - EVENTO ANNULLATO
Dott. Marc Mauduit
École Natonale Supérieure de Chimie de Rennes, Rennes Insitute of Chemical Sciences
  Seminario  

In 2007, a new class of carbenes, namely cyclic (alkyl) (amino) carbenes (CAACs), emerged as a competitor to NHCs as ligands for olefin metathesis catalysts. Since then, CAACs have been intensively studied, demonstrating exceptional productivity in ethenolysis processes (Turnover number up to 2.6 million at 100 ppb catalyst loading) while achieving remarkable catalytic performances in a number of other metathesis transformations. Despite these impressive results, the use of CAAC ligands in asymmetric catalysis is still in its infancy. This lecture will present pioneering developments in optically pure CAAC-Ruthenium complexes and their evaluation in asymmetric olefin metathesis. Additionally, thanks to density functional theory models, mechanistic insights highlighting the origin of enantioselectivity will also be discussed.