✦ LIBER ✦

Determination of Nuclear Quadrupole Coupling Constants of NaOH, KOH, RbOH, and CsOH and Electric Dipole Moment of NaOH

✍ Scribed by Yoshiyuki Kawashima; Richard D. Suenram; Eizi Hirota

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 133 KB
Volume: 175
Category: Article
ISSN: 0022-2852
DOI: 10.1006/jmsp.1996.0013

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✦ Synopsis

The J Å 1 R 0 rotational transitions of NaOH, KOH, RbOH, and CsOH were observed using a Fourier transform microwave spectrometer coupled with a laser ablation source. Well resolved hyperfine structure has been observed, yielding precise values of the nuclear quadrupole coupling constants eQq for alkali metal atoms. The excited vibrational state, v 2 Å 2 and l Å 0, was also observed for all species. The resulting values of eQq's for the excited vibrational states differ little from those of the ground vibrational states. When the long-pulse mode of the Nd:YAG laser was used instead of the Q-switched mode, the Stark effect of NaOH was successfully observed. The dipole moment of NaOH was determined to be 22.79(3) 1 10 030 Cm [6.832(9) D] from the Stark effect. The uncertainties shown are three standard deviations.

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