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Infrared absorption spectra (4000—400 cm -1 ) and RAMAN spectra of the pentaerythritol halides have been examined. By comparison with spectra of similar compounds and by a normal coordinate analysis with the aid of the GF-Matrix-Method of WILSON and on the basis of a modified valence force field it was possible to assign a great deal of the normal vibrations. The influence of the halogen atoms on the frequency of characteristic vibrations has been discussed.

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Schwingungsspektren von Derivaten des Pentaerythrits: 1. Mitteilung: Schwingungsspektren und Normalkoordinatenbehandlung der Tetrahalogenide des Pentaerythrits