Fine structure of the (S(1)<--S(0)) band origins of phthalocyanine molecules in helium droplets.

@article{Lehnig2004FineSO,
  title={Fine structure of the (S(1)<--S(0)) band origins of phthalocyanine molecules in helium droplets.},
  author={Rudolf Lehnig and Mikhail N Slipchenko and Susumu Kuma and Takamasa Momose and Boris G. Sartakov and A F Vilesov},
  journal={The Journal of chemical physics},
  year={2004},
  volume={121 19},
  pages={9396-405}
}
The laser-induced fluorescence (LIF) excitation spectra of free base phthalocyanine (Pc), Mg-Pc, and Zn-Pc molecules in superfluid helium droplets at T=0.38 K have been studied. The spectra reveal the rich vibronic structure of the S(1)<--S(0) electronic transitions. The band origins of the transitions consist of zero phonon lines accompanied by phonon wings, which originate from simultaneous electronic excitation of the molecule and excitation of the collective modes of the helium surrounding… CONTINUE READING

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