Laughlin, K. B. and Blake, Geoffrey A. and Cohen, R. C. and Hovde, D. C. and Saykally, R. J. (1987) Determination of the dipole moment of ArH+ from the rotational Zeeman effect by tunable far infrared laser spectroscopy. Physical Review Letters, 58 (10). pp. 996-999. ISSN 0031-9007 http://resolver.caltech.edu/CaltechAUTHORS:LAUprl87
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The first determination of the electric dipole moment of a molecular ion is reported. A tunable far-infrared laser was used to measure the Zeeman effect in low-J rotational transitions of ArH+ and ArD+, and the dipole was determined from the isotopic dependence of gr. The result (μ=1.4±0.4 D) is in marginal agreement with ab initio calculations (2.2 D). It is shown that this method can ultimately provide molecular-ion dipole moments accurate to within a few percent. The adiabatic internuclear separations of both isotopes were also determined from the gr values.
|Additional Information:||©1987 The American Physical Society Received 17 November 1986 This work was supported by the National Science Foundation under Grant No. CHE-84-02861. One of us (K.B.L.) would like to thank the National Science Foundation for a fellowship. Another of us (G.A.B.) is a Berkeley Miller Research Fellow, 1985-1987. Another of us (R.J.S.) was a Berkeley Miller Research Professor, 1985-1986.|
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|Deposited On:||23 Dec 2006|
|Last Modified:||26 Dec 2012 09:25|
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