Normalschwingungen und Rotationsisomerie von Polysulfidionen S^2- _n(n=4 - 8) / Fundamental Vibrations and Rotational Isomers of Polysulfide Anions, S_n ^2- (n = 4 - 8)

Open Access

1 November 1977

journal article
research article
Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung A

Vol. 32 (11) , 1313-1319
https://doi.org/10.1515/zna-1977-1118

Abstract

Raman spectra of (NH₄)₂S₅ and S₄Cl₂ (dichlorotetrasulfane) have been recorded, and force constants have been calculated for the pentasulfide ion using an extended Urey-Bradley force field with six independent force constants. K₂S₅ like (NH₄)₂S₅ is shown to contain helical S₅ ^2-(symmetry C₂) but Na₂S₅ consists of cis-S₅ ^2-of symmetry C₅. The force constants of S₄ ^2-and S₅ ^2-agree well with those of S₈ and have been used to calculate the fundamental vibrations of S₆ ^2-) S₇ ^2-, and S₈ ^2-in different isomeric rotational conformations. The Raman spectrum of S₄Cl₂ is compared with the vibrations calculated for isoelectronic S₆ ^2-.

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Normalschwingungen und Rotationsisomerie von Polysulfidionen S2- n(n=4 - 8) / Fundamental Vibrations and Rotational Isomers of Polysulfide Anions, Sn 2- (n = 4 - 8)

Abstract

Keywords

Normalschwingungen und Rotationsisomerie von Polysulfidionen S^2- _n(n=4 - 8) / Fundamental Vibrations and Rotational Isomers of Polysulfide Anions, S_n ^2- (n = 4 - 8)