The dipole moment of water. I. Dipole moments and hyperfine properties of H sub 2 O and HDO in the ground and excited vibrational states

Journal Article · Wed May 01 04:00:00 EDT 1991 · Journal of Chemical Physics; (USA)

DOI:https://doi.org/10.1063/1.460471· OSTI ID:5595232

Shostak, S L; Ebenstein, W L; Muenter, J S ^[1]

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1. Department of Chemistry, University of Rochester, Rochester, New York 14627 (USA)

Molecular beam electric resonance spectroscopy has been used to study H{sub 2}O in its ground state and in each of its singly excited vibrational states. HDO was studied in its ground state and first excited O--H stretching state. Precise dipole moments have been obtained for a total of 14 rotational levels of six vibrational states. Centrifugal distortion corrections to the Stark coefficients were made and rotationless moments were calculated for each vibrational state. The magnitude of the H{sub 2}O moment can be written {mu}({ital v}{sub 1}{ital v}{sub 2}{ital v}{sub 3}) =1.857 04+0.005 08({ital v}{sub 1}+ (1)/(2) ) {minus}0.031 66({ital v}{sub 2}+ (1)/(2) ) +0.022 46({ital v}{sub 3}+ (1)/(2) ). Individual components of the HDO moment were obtained for the ground and excited states. Hyperfine properties were also determined for each of the vibrational states studied. In the following paper, the dipole moments are combined with infrared transition moments to obtain an improved dipole moment function for water.

• DOE Contract Number: FG02-87ER60514
• OSTI ID: 5595232
• Journal Information: Journal of Chemical Physics; (USA), Journal Name: Journal of Chemical Physics; (USA) Vol. 94:9; ISSN JCPSA; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
DEUTERIUM COMPOUNDS
DIPOLE MOMENTS
ELECTRIC DIPOLE MOMENTS
ELECTRIC MOMENTS
ENERGY LEVELS
EXCITED STATES
GROUND STATES
HYDROGEN COMPOUNDS
HYPERFINE STRUCTURE
OXYGEN COMPOUNDS
STARK EFFECT
VIBRATIONAL STATES
WATER