Infrared and ultraviolet–visible spectroscopic studies on manganese heptoxide (Mn2O7)
- 1 January 1983
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 12,p. 2699-2702
- https://doi.org/10.1039/dt9830002699
Abstract
Infrared and u.v.–visible spectra are reported for Mn2O7 both in the solid phase and as a monomeric species isolated in low-temperature matrices. The i.r, spectra are consistent with the expected bridged structure, and indicate a relatively wide O3Mn–O–MnO3 angle. Characteristic i.r. absorptions are found at ca. 955 cm–1[νasym(MnO)], ca. 890 cm–1[νsym(MnO)], and ca. 775 cm–1[νasym(Mn–O)]. The electronic spectrum of Mn2O7 shows a number of charge-transfer bands with partially resolved vibrational progressions, and their features are compared with those of related manganese(VII) oxo-species.Keywords
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