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Intramolecular switching between dipolar resonance structures in singlet and triplet excited states detected by TRMC |
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| Authors: | John M Warman Wouter Schuddeboom Stephan A Jonker Matthijs P de Haas Michael N Paddon-Row Klaas A Zachariasse Jean-Pierre Launay |
| Institution: | a IRI, Delft University of Technology, Mekelweg 15, 2629 JB Delft, The Netherlands b School of Chemistry, University of New South Wales, P.O. Box 1, Kensington, New South Wales 2033, Australia c Max-Planck-Institut für biophysikalische Chemie, Spektroskopie und photochemische Kinetik, Am Fassberg, Postfach 2841, W-3400 Göttingen, Germany d Centre d'Elaboration de Matériaux et d'Etudes Structurales, CNRS, 29 rue Jeanne Marvig, 31055 Toulouse Cedex, France |
| Abstract: | Transient changes in the real and imaginary component of the complex permittivity of a flash-photolyzed solution can be monitored with nanosecond time resolution using the time-resolved microwave conductivity (TRMC) technique. Effects caused by rapid (picosecond), flip—flop switching between dipolar resonance structures in the S1 and T1 states of molecules with mirror symmetry have been observed. |
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