PHOTODISSOCIATION SPECTRUM OF NAPHTHALENE DIMER CATION

The electronic spectrum of (C10H8)(2)(+) is obtained in the 455-1400 nm region by applying photodissociation spectroscopy to the ion produced by the laser-induced plasma technique, The spectrum shows a local excitation band at 580 nm and a charge resonance band at 1180 nm, The locations of these bands coincide with those reported for intramolecular dimer cations of dinaphthylpropanes with a partially overlapped conformation,suggesting that (C10H8)(2)(+) has a similar conformation in the gas phase.