1997 Volume 66 Issue 5 Pages 1321-1323
We have demonstrated the existence of metastable excited rhodamine molecular ions when created in laser desorption ionization.Rhodamine ions were stored in a rf ion trap, and photodissociation was used to probe the metastable population as a functionof trapping time. From the dependence of the population decayon buffer gas pressure and by extrapolating it to zero pressurewe have obtained the lifetime of the metastable state of the ions in isolated condition.
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