Equilibrium nuclear quadrupole coupling constants from the rotational spectrum of BrCl: a source of the electric quadrupole moment ratios Q(79Br)/Q(81Br) and Q(35Cl)/Q(37Cl)
✍ Scribed by A.C. Legon; J.C. Thorn
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 526 KB
- Volume
- 215
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
The nuclear hyperfine structure m the J= 1 +O transItions of the four lsotopomers 79Br3sC1, 79Br37Cl, 81Bti3'C1 and "'B?'Cl has been observed m the mbrational states u=O and u= 1 by pulsed-nozzle, Founer-transform microwave spectroscopy Accurate values of the nuclear quadrupole coupling constants XL(X), where X=Br or Cl, and the spin-rotation coupling constants Mib(X) are determined from the spectra Eqmhbnum values x,&(X) and Mib(Br) are denved from the vibrationally averaged quantities and the former lead to precise lsotopx ratios, Q( "Br)/Q( *'Br) = 1 197048(3) and Q( W)/Q( "Cl) = 1 26889(3), for the nuclear electnc quadrupole moments