ISSN:
0377-0486
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
The Raman spectrum of hydrogen peroxide in the vapor phase has been measured for the first time by means of an Ar+ laser source. Three parallel bands were found at 3607 (v1), 1393.5 (v2), and 863.5 (v3) cm-1, with relative intensities of about 10:3:12. In deuterium peroxide the corresponding frequencies are 2668.5, 1028.5, and 867.0 cm-1, and the relative intensities, 20:3:12. Thus, the O—O stretching frequency is appreciably lower in the free molecule than in condensed phases (880 cm-1). The shift corresponds to a bond shortening of about 0.01 Å in the latter, in agreement with X-ray and neutron diffraction data for various crystals. The slight shift to higher frequency of the O—O vibration in D2O2 is due primarily to coupling with the OD bending, as indicated by a normal coordinate analysis.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jrs.1250020203
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