Assignments of the II%* Singlet States of p-Benzoquinone
نویسنده
چکیده
The vapor phase fluorescence spectra of p-benzoquinone-84 and & are reported and discussed in relation to the assignment of the low lying singlet states. The low temperature, polarized single crystal electronic absorption spectra of p-benzoquinone and several of its isotopic derivatives are reported. From the isotope shifts and band polarizations of the various vibronic origins, a detailed vibronic analysis is offered of the electronic absorption spectrum of p-benzoquinone which indicates a near degeneracy of the ‘A, and ‘Br, electronic states.
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