Collect. Czech. Chem. Commun. 1982, 47, 1549-1555

Vibrational spectra of ammonium ammine-oxo-diperoxovanadate

Peter Schwendta and Miloslav Pisárčikb

a Department of Inorganic Chemistry, 816 31 Bratislava
b Institute of Inorganic Chemistry, Slovak Academy of Sciences, 809 34 Bratislava


Infrared and Raman spectra of solid NH4[VO(O2)2NH3], ND4[VO(O2)2ND3], 14/15NH4[VO(O2)214/15NH3] (about 50% 15N) and Raman spectrum of solution of NH4[VO(O2)2NH3] have been measured. Interpretation of the spectra was complemented by normal coordinate analysis in the approximation of point mass model (NH3). The results have shown that there exists coupling of vibrations of two V(O2) groups, which enables an explanation of differences between spectra of the mono- and diperoxo complexes. The vibrational coupling of VO and OO bonds within one V(O2) group probably causes small sensitivity of wave number of v(O-O) band to changes of d(O-O) bond length.