Infra-red absorption of heteroaromatic and benzenoid six-membered monocyclic nuclei—XI: Pyr-4-ones and pyr-4-thiones

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Abstract

The infra-red spectra of six pyrones and pyrthiones in the region 2000–800 cm−1 are discussed and tentative assignments for most of the bands are suggested by analogy with other heteroaromatic compounds.

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