Double ionization of quaterrylene (C40H20) in water-ice at 20 K with Lyα (121.6 nm) radiation

@article{Gudipati2006DoubleIO,
  title={Double ionization of quaterrylene (C40H20) in water-ice at 20 K with Ly$\alpha$ (121.6 nm) radiation},
  author={Murthy S. Gudipati and L. J. Allamandola},
  journal={Journal of Physical Chemistry A},
  year={2006},
  volume={110},
  pages={9020-9024}
}
Polycyclic aromatic hydrocarbon (PAH) molecules undergo facile ionization in cryogenic water-ices resulting in near quantitative conversions of neutral molecules to the corresponding singly charged radical cations. Here we report, for the first time, the production and stabilization of a doubly ionized, closed shell PAH in water-ice. The large PAH quaterrylene (QTR, C40H20) is readily photoionized and stabilized as QTR2+ in a water-ice matrix at 20 K. The kinetic analysis of photolysis shows… 
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