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Diversity of coherences and origin of electronic transitions of supermolecular nanoring


Structure of porphyrin nanoring.

After applying electronic two-dimensional spectroscopy technique on six-porphyrin nanorings with an inner template we could clearly observe and analyse the coexistence of electronic, vibrational and mixed coherences in a single system. Analysis of quantum coherences untangled the energy level structure of the excited states and their cooperativity. Such coherent quantum properties of a supermolecular system were reported for the first time, but should be general for molecular aggregates. 

Groups Involved


  • Department of Theoretical Physics, Faculty of Physics, Vilnius University, Lithuania
  • Center for Physical Sciences and Technology, Vilnius, Lithuania
  • Department of Chemistry, University of Oxford, Chemistry Research Laboratory, United Kingdom