Volume 65, 1969

Ion recombination in γ-irradiated naphthalene solutions

Abstract

Ultra-violet absorption spectroscopy shows that C10H+8, (C10H8)+2, C10H8 and C10H9 are produced when solutions of naphthalene in hydrocarbon glasses at 77°K are irradiated with γ-rays. Thermoluminescence is produced on warming and is correlated with the presence of ions. The reaction between C10H+8 and C10H8 gives monomer emission only, not excimer emission : therefore, electron transfer must take place before the ions come into contact; excimers are formed from the dimer cations. Addition of electron scavengers (SF6, CO2, O2,N2O, NO) partially quenches the emission and alters the fluorescence/phosphorescence ratio : N2 and CF4 have no effect. “Glow curves” are interpreted in terms of the distribution of ion separations : ion pairs trapped close together recombine first : luminescence in the later part of the glow curves is due to ion pairs with greater separations and these are more likely to be affected by scavengers.

Article information

Article type
Paper

Trans. Faraday Soc., 1969,65, 2159-2167

Ion recombination in γ-irradiated naphthalene solutions

B. Brocklehurst and R. D. Russell, Trans. Faraday Soc., 1969, 65, 2159 DOI: 10.1039/TF9696502159

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Spotlight

Advertisements