HYPERFINE STRUCTURE OF THE ROTATIONAL SPECTRUM OF HDO

Journal Article · Thu Mar 15 04:00:00 EST 1962 · Journal of Chemical Physics (U.S.)

DOI:https://doi.org/10.1063/1.1732766· OSTI ID:4782333

Treacy, E B; Beers, Y

The hyperfine structure of the 3/sub 2/ yields 3/sub 3/ and 5/sub 2/ yields 5/sub 3 / rotational transitions of HDO, which fall at about 825 and 487 Mc, respectively, were studied using microwave cavities as spectrometers. The experiments illustrated the usefulness of large Q cavities as spectrometers for this kind of work. The 3/sub 2/ yields 3/sub 3/ transition was resolved into a symmetrical pattern consisting of a strong central line with six weak satellites on each side. The minimum full linewidth between half-power points that was achieved was about 10 or 12 kc. The spectrum was fitted with CH = -46.6 plus or minus 0.3 kc, C /sub D/= -1.66 plus or minus 0.3kc, and (eqQ/sub OD/= 310 3 plus or minus 3kc, The 5/sub 2/ yields 5/sub 3/ transition was resolved into a symmetrical pattern also, with a strong central line and three weak satellites on each side. The minimum full linewidth between half-power points was about 6 kc. The spectrum was fitted with C/sub H/= -47.38 plus or minus 0.lkc, C/sub D/=-2.42 plus or minus 0.1kc, and (eqQ)/sub OD/=3l4.3 plus or minus l.5kc. A systematic comparison of the results with those obtained elsewhere on the 2/sub 1/ yields 2/sub 2/ transition in HDO is made. The qualitative features of the spectra are consistent with what one would expect on the basis of existing theory, but the present state of the theory may be inadequate for explaining some of the quantitative details of the magnetic structure. (auth)

• Research Organization: New York Univ., New York
• Sponsoring Organization: USDOE
• NSA Number: NSA-16-016355
• OSTI ID: 4782333
• Journal Information: Journal of Chemical Physics (U.S.), Journal Name: Journal of Chemical Physics (U.S.) Vol. Vol: 36; ISSN JCPSA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CHEMISTRY
CONFIGURATION
DEUTERIUM COMPOUNDS
HYPERFINE STRUCTURE
MAGNETIC FIELDS
MICROWAVES
ROTATION
SPECTRA
SPECTRAL SHIFT
SPECTROMETERS
SYMMETRY
WATER