From symmetry breaking to symmetry swapping: is Kasha's rule violated in multibranched phenyleneethynylenes?
K. Swathi, Meleppatt Sujith, P. S. Divya, Merin Varghese P., Andrea Delledonne, D. K. Andrea Phan Huu, Francesco Di Maiolo, Francesca Terenziani, Andrea Lapini, Anna Painelli, Cristina Sissa, K. George Thomas
Abstract
, the swapping of excited states occurring as a consequence of symmetry breaking. Thus, symmetry swapping explains quite naturally the observation of an intense fluorescence emission in molecular systems whose lowest vertical excited state is a dark state. In short, symmetry swapping is observed in highly symmetric molecules having multiple degenerate or quasi-degenerate excited states that are prone to symmetry breaking.
Topics & Concepts
Symmetry (geometry)Symmetry breakingExcited statePhysicsPoint reflectionTheoretical physicsSpontaneous symmetry breakingLyingExplicit symmetry breakingChemistryQuantum mechanicsCondensed matter physicsGeometryMathematicsMedicineRadiologyLuminescence and Fluorescent MaterialsOrganic Electronics and PhotovoltaicsMolecular Junctions and Nanostructures