THE ABSOLUTE POLARIZATION AND THE ASSIGNMENT OF THE ELECTRONIC TRANSITIONS OF $trans-AZOBENZENE^{\ast}$
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Date
1964
Journal Title
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Volume Title
Publisher
Ohio State University
Abstract
The experimental determination of the absolute polarizations of the electronic absorption bands of trans-azobenzene has been complicated by the fact that its crystal structure is such that direct absorption measurements on at least two faces are required for unambiguous assignments, while the crystal geometry has precluded direct absorption measurements on more than one face. Single crystal specular reflection studies on several faces, in combination with more conventional thin film and single crystal work, have allowed these polarizations to be obtained, however, and have in general provided a much more detailed picture of the electronic structure than has heretofore been available. The most important of these new results have been confirmed by mixed-crystal absorption studies. A resonance force model provides a reasonably detailed explanation of the observed spectra and polarizations.
Description
$^{\ast}$ Partially supported by a grant from the National Science Foundation. $^{\dag}$ Support partially provided by a National Science Foundation Undergraduate Research Participation Grant.
Author Institution: Sterling Chemistry Laboratory, Yale University
Author Institution: Sterling Chemistry Laboratory, Yale University