Infrared Spectra in Polarized Light and Vibrational Assignment of the Infrared Active Modes of Anthracene and Anthracene-d10

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Abstract
Infrared spectra of anthracene and anthracene‐d10 of high deuterium content are reported. The spectra were measured in the gas phase, in solution, in KBr pellets, and in single crystals with polarized radiation. The experimental dichroism of the observed bands has been used to furnish a vibrational assignment of the infrared active modes. This assignment shows striking similarities with the assignment given in the literature for naphthalene.