ELECTRONIC SPECTROSCOPY OF A CYCLIC POLYENE, 2,2-DIETHYLISOINDENE
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Date
1978
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Ohio State University
Abstract
Electronic excited states of the recently reported unusual cyclic tetraene, $2,2-dimethylisoindene,^{1}$ have been investigated by a variety of spectroscopic techniques and are compared with those of the parent, $o-quinodimethane,^{2}$ and related o-quinoid hydrocarbons. The compounds of this series show strong fluorescence as well as significant photochemical reactivity (conversion to benzocyclobutenes, e.g., $1 \rightarrow 3$). The results are discussed in terms of n-electron calculations which suggest the presence of a low-lying predominantly doubly excited state similar to those discussed in recent years in linear polyenes.[FIGURE]
Description
Author Institution: Department of Chemistry, University of Utah