Using a combination of transient electronic and vibrational absorption spectroscopies, we have been investigating excited state charge transfer and symmetry breaking dynamics of a series of formally centrosymmetric triads, synthetised in the group of D. Gryko in Warsaw, and consisting of a quadrupolar core substituted with two identical lateral branches. The time resolved vibrational spectra allowed us to identify three different types of symmetry-breaking charge-transfer processes depending on the nature of the end substituents on the core and branches as well as on the solvent. More details can be found in our recently published article (https://doi.org/10.1039/D4SC05419A).
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Eric Vauthey
Physical Chemistry Department - Sciences II - University of Geneva
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