Electronic Transitions of Some Polyacene Mononegative and Dinegative Ions
- 1 May 1964
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 40 (9), 2501-2504
- https://doi.org/10.1063/1.1725554
Abstract
Absorption spectra of the pentacene mono and dinegative ions in the 5–42 kK region were measured. To determine the relative directions of polarization of the electronic transitions a glassy solution of the dinegative ion was photo-oxidized with plane-polarized ultraviolet light and extinctions of this dichroic solution were measured for plane-polarized light parallel and perpendicular to the vector of the photo-oxidizing light. The experimental spectra are compared with those of the mono and dinegative ions of some other polyacenes. A qualitative interpretation of the spectra is given.Keywords
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