Resonance Raman spectrum and vibrational analysis of the ozonide ion in the argon matrix-isolated M+O3− species
Beams of alkali metal atoms and ozone molecules at high dilution in argon were condensed on a tilted copper wedge at 16°K and were examined by argon and krypton plasma laser excitation. Very intense bands shifted 1010 cm−1 below the exciting lines showed small alkali metal effects and appropriate ox...
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Veröffentlicht in: | The Journal of chemical physics 1973-08, Vol.59 (4), p.1863-1871 |
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Hauptverfasser: | , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Beams of alkali metal atoms and ozone molecules at high dilution in argon were condensed on a tilted copper wedge at 16°K and were examined by argon and krypton plasma laser excitation. Very intense bands shifted 1010 cm−1 below the exciting lines showed small alkali metal effects and appropriate oxygen-18 shifts for assignment to the v1 symmetric oxygen-oxygen mode of the ozonide ion in the M+O3− species. The intense fundamental and a regular progression of overtones out to 4v1 suggest that these spectra are probably due to the resonance Raman effect. Vibrational analysis for six isotopic ozonide species produced the oxygen-oxygen force constant 4.18 ± 0.11 mdyn/Å. The spectroscopic value for the heat of atomization of the ozonide ion calculated from the vibrational constants ω1 = 1028.2 cm−1 and X11 = 4.95 cm−1 for Cs+O3− is 153 kcal/mole, which agrees well with the thermodynamic value. |
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ISSN: | 0021-9606 1089-7690 |
DOI: | 10.1063/1.1680271 |