LOW RESOLUTION OPTICAL SPECTROSCOPY OF RETINYL POLYENES: LOW LYING ELECTRONIC LEVELS AND SPECTRAL BROADNESS*
- 1 October 1973
- journal article
- Published by Wiley in Photochemistry and Photobiology
- Vol. 18 (4) , 293-301
- https://doi.org/10.1111/j.1751-1097.1973.tb06424.x
Abstract
Abstract— Optical absorption and emission spectra of retinal, axerophtene, anhydrovitamin A, and 2,10‐dimethylundecapentaene in rigid glass matrixes at 77°K are presented. An interpretation of the observed spectra which provides a rationalization on the basis of electronic structure for the diffuse nature of the retinal spectrum is discussed. For the undecapentaene a weakly absorbing 1Ag state was found 3250 cm‐1 lower in energy than the level responsible for the strong visible absorption.Keywords
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