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Hamburg 2009 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 24: Elektronische Spektroskopie

MO 24.9: Vortrag

Freitag, 6. März 2009, 12:45–13:00, VMP 6 HS-G

A simple method to obtain information on the conformation of dipole-dipole coupled dimers — •Alexander Eisfeld — MPI-PKS Dresden, Finite Systems

A dimer is considered where the two monomers are coupled by dipole-dipole interactions. Upon electronic excitation the interaction leads to a drastic change of the dimer absorption spectrum compared to that of the non-interacting monomers. The method presented here uses sum rules, to obtain information on the interaction strength between the monomers and the conformation of the dimer directly from the measured spectra [1]. Comparison with previous results [2], obtained by diagonalisation of the dimer Hamiltonian, shows remarkable agreement.

[1] Chem. Phys. Lett. 445, (2007) 321

[2] J. Chem. Phys. 122 (2005) 134103

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