Molecule of the Month January 2010 |
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S1/S2 Excitonic Splitting in the Excited State of the Jet-Cooled 2-Aminopyridine Dimer |
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The vibronic band structure of the excitonically coupled S1←S0 and S2←S0 excitations of the 2-aminopyridine self-dimer (2AP)2 is analyzed using a linear vibronic coupling model . A major vibronic coupling contribution arises from the intramolecular 6a’ vibration. However, the low energy intermolecular shear (χ’) and stretching (σ’) vibrational excitations also exhibit excitonic splittings, which is not explained by theory.
This work was carried out in the group of Prof. Samuel Leutwyler. References:
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