[seminar] Seminar: Mattia Anzola, 25.09. (srijeda) 14h (c.t.), seminar ZTF-a

[Oleg Antipin]

Modelling interacting chromophores:
aggregates and energy transfer

Mattia Anzola
University of Parma, Italy

Datum: Srijeda, 25.09 2019.
Vrijeme : 14 sati c.t.
Mjesto: IRB, seminar ZTF-a


Sažetak

In molecular systems intermolecular forces are much weaker than the  
chemical bonds inside each individual molecular unit. I will present  
two examples of system where weak intermolecular interactions can  
markedly affect optical properties. In molecular aggregates, optical  
spectra cannot be calculated as the sum of molecular spectra: I will  
focus on models to describe J and H aggregates both in one and two  
dimensions, and calculate absorption and emission spectra. In the  
second part of the talk I will show how different molecules can  
interact at large distances (10-100 A) in the so called Förster  
Resonance Energy Transfer
(FRET), in which the excitation can "jump" from a molecule (Donor), to  
another one (Acceptor) through non-radiative dipole-dipole coupling.  
Here I will present preliminary results of a Molecular Dynamics study  
with the aim of rationalize the role of slow degrees of freedom during  
resonant energy transfer mechanism.
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