Molecular beam Zeeman effect and dipole moment sign of ClF
- 15 June 1977
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 66 (12), 5274-5277
- https://doi.org/10.1063/1.433908
Abstract
Molecular beam electric resonance spectroscopy has been used to observe hyperfine, Stark, and Zeemanproperties of chlorine monofluoride. The dipole moment from Zeeman data is 0.85(15), −FCl+, in agreement with the known magnitude. The sign obtained here is the opposite of earlier, less precise, Zeeman results but agrees with calculations and van der Waals molecule experiments. Hyperfine, Stark, and Zeemanproperties for 35ClF and 37ClF are reported, including polarizabilityanisotropy, α∥−α⊥=1.32(8) Å3, molecular quadrupole moment, ϑ∥=1.54(7) ×10−26 esu⋅cm2, and the chlorine quadrupole coupling constant derivative, d e Q q/d R=−90(20) MHz/Å.Keywords
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