Lunedì 13 maggio 2019
Ore 10.30
Aula U3-06, Edificio U3 – Piazza delle Scienze, Milano
Relatore: Josef Michl – Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague and Departments of
Chemistry and of Physics, University of Colorado, Boulder, Colorado, United States
Titolo: Arrays of Dipolar Molecular Rotors
Abstract. We shall describe the current state of efforts to prepare regular two-dimensional triangular arrays of electrostatically interacting artificial dipolar molecular rotors, to establish their exact structure by X-ray diffraction and various spectroscopic tools, and to detect collective behavior.
Related efforts to prepare thin-layer three-dimensional analogs will also be described. Two types of two-dimensional arrays are under investigation:
(i) surface inclusions of rotors as guests partially inserted into hexagonal channels in a host solid, with dipolar rotators outside, and
(ii) LB monolayers composed of rotors that carry two axial triptycenes with a dipolar rotator between them.
Triptycenes on neighboring rotors interlock to form two decks and keep the dipolar rotators in the center. The pros and cons of the two approaches will be compared.