The infrared absorption spectra of p-benzoquinone in carbon disulfide and carbon tetrachloride solutions in rock salt region are measured and interpreted together with the Raman data reported by Stammreich and Forneris. A complete, although more or less tentative, assignment of the fundamental frequencies to modes of vibrations is proposed.
A semi-empirical MO method proposed by Pariser and Parr was extended, taking account of the non-bonding electrons at the heterotoms explicitly as well as π-electorns. The electronic states of p-benzoquione were calculated neglecting cinfiguration insteractions.
for constructing the special Raman tubes used. Mr. Edward Chait of the Chemistry Department of Purdue University obtained the mass spectral data reported herein.
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