Notizen: Synthese und Eigenschaften des Oktafluorodirhenat(III) -anions, [Re2F8]2- / Synthesis and Properties of the Octafluorodirhenate(III) Anion, [Re2F8]2-
Open Access
- 1 December 1979
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung B
- Vol. 34 (12) , 1767-1768
- https://doi.org/10.1515/znb-1979-1226
Abstract
The reaction of [Re2Cl8]2- and F-, both dissolved as ion pairs with [(n-C4H9]+ in nearly anhydrous CH2Cl2 gives elder-coloured [(n-C4H9)4N]2[Re2F8] · 4H2O. On Laser irradiation of the solid complex at 80 K resonance Raman spectra are observed, exhibiting up to five overtones of v1 = 320 cm-1 (Re-Re, A1g) and combination tones with V2 = 625 cm-1 (Re-F, A1g). The spectroscopic constants are ω1 = 319,6 ± 0.6 cm-1, and x11 = -0,45 ± 0,05 cm-1. The Re-Re bond energy is estimated to be 162 ± 20 kcal/mol.Keywords
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