Accession Number:

AD0421813

Title:

THE DETERMINATION OF THE HINDERED MOTION IN HYDROGEN PEROXIDE FROM ITS FAR INFRARED SPECTRUM,

Descriptive Note:

Corporate Author:

MICHIGAN UNIV ANN ARBOR COLL OF LITERATURE SCIENCE AND THE ARTS

Personal Author(s):

Report Date:

1963-06-01

Pagination or Media Count:

69.0

Abstract:

The torsional oscillation between the two OH groups of the hydrogen peroxide molecule has been investigated by a study of the absorption spectrum of the vapor in the far infrared. A one meter focal length vacuum grating monochromator was used to scan the region from 15 to 700 reciprocal cm with an average resolution of 0.3 reciprocal cm. The spectrum could be analyzed into a number of perpendicular type bands of which only the Q branches delta K 1, delta J 0 transitions could be identified. The centers of the seven bands that could be recognized were at 11.43, 116.51, 198.57, 242.76, 370.70, 521.68, and 557.84 reciprocal cm. These bands result from transitions between different states of the internal rotation and their identification made it possible to construct the internal rotation energy level scheme complete through the first five excited states. Relative to the ground state, these levels occur at 11.43, 254.2, 370.7, 569.3, and 775.9 reciprocal cm. Leacock and Hecht have concurrently developed a treatment of the internal motion, expressing the hindering potential function as a Fourier series in x where x is the dihedral angle between the two OH groups. Author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE