Abstract
IR and Raman spectra of dihydro-9,10 anthracene and dihydroanthracene-D 4(9,10) have been investigated in the 3100 to 100 cm −1 region; an assignment is given. Spectra are interpreted in terms of a molecule composed of two ortho disubstituted benzene rings very similar to that of o-xylene. The symmetry of the dihydro-9,10 anthracene molecule in solution is discussed. The differences with respect to anthracene spectra are correlated with the electronic structure of the latter compound.
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