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PI: Dario Pasini

ERC Sectors: PE5_17 Organic chemistry; PE5_15 Polymer chemistry; PE5_16 Supramolecular chemistry

Research

Chiral nanostructures for (chir)optical sensing.
The group is using binaphthyl based derivatives, and, more recently triptycenes, both robust sources of chirality and chromophores, as molecular modules for the realization of nanostructures. Innovative procedures need to be developed for their synthesis. The incorporation of binaphthyl-based derivatives into covalent structures has given access to recognition and optical sensing of C60, and of the use of CD (Circular Dichroism) spectroscopy for the monitoring of the conformations of macrocycles. We are now dealing with the evolution of such systems into more sophisticated systems of truly chiroptical sensing, in which the CD signalling of the analyte can be orthogonal with respect to other spectroscopic techniques. The synthesis of covalent cyclic structures is also directed to the 3D supramolecular assembly of chiral nanotubes and supramolecular polymers.

Controlled polymer synthesis for functional applications.
We are interested in polymers for functionals applications in the energy, biomedical and environmental sectors, and we make them in a controlled way. We have explored cyclopolymerizations for controlling the three-dimensional macromolecular structure and regulating the sequence of monomers. We use modern techniques for controlled/living free radical polymerization. Efforts have been directed to innovative macromolecular scaffolds for solution phase synthesis, to three-dimensional polymeric scaffolds (hydrogels), and towards the postfunctionalization of a promising bacterial polymer, gamma-PGA, through "click chemistry" reactions. We have been more recently involved in novel materials for 3D printing, and in the development of sustainable and supramolecular polymers as viscosity modifiers.

π-Conjugated organic materials.
We are interested in "push-pull" conjugated organic chromophores from the point of view of the emissive properties in the solid state (AIE properties). In the area of organic photovoltaics, the sustainability and scalability of the synthesis of semiconductor polymers is approached for an effective technology transfer in the new generation photovoltaic field.

Collaborations

Luca Beverina (University of Milano Bicocca)
for green approaches to organic semiconductors,

Tim Swager (MIT)
for π-conjugated materials,

Riccardo Po (ENI) and Gabriele Bianchi (ENI)
for organic photovoltaics,

Marcello Notari (ENI)
for green and supramolecular polymers as viscosity modifiers,

Chiara Botta (CNR Milan)
for photophysical characterization of conjugated materials and Aggregation Induced Emission materials,

Giuseppe Mattioli (CNR Rome)
for computational studies,

Luigi Mariucci (CNR Rome)
for characterization of conjugated materials for OFET,

Giulia Grancini (UNIPV)
for HTL materials and non-fullerene acceptors in perovskites,

Daniele Dondi and Ferdinando Auricchio (UNIPV)
for 3D printing,

David Amabilino (University of Nottingham)
for chiral nanostructures and OPV,

Dominique Armspach (University of Strasbourg)
for chiroptical receptors based on modified cyclodextrins,

Gianmarco Griffini (Milan Polytechnic)
for luminescent solar concentrators,

Chuanlai Xu (Jangnan University)
for chiral nanostructures for sensing,

Nadia Camaioni (CNR Bologna)
for OPV,

Eliana Quartarone (UNIPV)
for self-healing materials,

Valeria Amendola (UINPV)
for supramolecular cages and chiroptical sensors.

Active projects

See group’s website: www.unipv.it/labt

Pubblicazioni

‘Biocompatible graft copolymers from bacterial poly(γ-glutamic acid) and poly(lactic acid)’,
C. L. Zaccaria, V. Cedrati, A. Nitti, E. Chiesa, A. Martinez de Ilarduya, M. Garcia-Alvarez, M. Meli, G. Colombo, D. Pasini,* 
Polym. Chem2021, 12, 3784-3793. DOI: 10.1039/D1PY00737H.

Anthradithiophene-based organic semiconductors through regiodirected double annulations,’
A. Nitti, G. Forti, G. Bianchi, C. Botta, F. Tinti, M. Gazzano, N. Camaioni, R. Po, D. Pasini,* 
J. Mater. Chem. C 2021, 9, 9302-9308. DOI: 10.1039/D1TC01887F.

‘Large-Area Semi-Transparent Luminescent Solar Concentrators Based on Large Stokes Shift Aggregation-Induced Fluorinated Emitters Obtained Through a Sustainable Synthetic Approach’,
F. Corsini, A. Nitti, E. Tatsi, G. Mattioli, C. Botta, D. Pasini,* G. Griffini,* 
Adv. Optical Mater. 2021, 2100182. DOI: 10.1002/adom.202100182.

One-Pot Regiodirected Annulations for the Rapid Synthesis of π-Extended Oligomers’, 

A. Nitti, P. Osw, G. Calcagno, C. Botta, S. Etkind, G. Bianchi, R. Po, T. M. Swager, D. Pasini,* 
Org. Lett.  2020, 22, 3263-3267. DOI: 10.1021/acs.orglett.0c01043.

‘Aggregation-Induced Circularly Polarized Luminescence: Chiral Organic Materials for Emerging Optical Technologies’, 
A. Nitti, D. Pasini,* 
Adv. Mater. 2020, 1908021.  DOI: 10.1002/adma.201908021.

‘Domino Direct Arylation and Cross-Aldol for Rapid Construction of Extended Polycyclic π-Scaffolds’,
A. Nitti, G. Bianchi, R. Po, T. M. Swager, D. Pasini,
J. Am. Chem. Soc.2017, 139, 8788-8791. doi: 10.1021/jacs.7b03412.