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Zeeman measurements of a hyperfine resolved infrared transition of D35Cl2+

Lookup NU author(s): Simon Cox, Dr Iain McNab

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Abstract

We report the first measurement of effective electron g-factors in a doubly positively charged molecule (molecular dication); the measurements were made using a fast-ion-beam/laser-beam spectrometer. We measured Zeeman splittings of a rotational line within the v = 2 ← 1 vibrational band of the X3Σ- electronic ground state of D35Cl2+. The Zeeman splittings allowed us to assign the line as a PQ23(6) fine structure transition and to measure the effective upper and lower state effective electron g-factors as g(v′ = 2, N′ = 5, J′ = 5) = 1.0 ± 0.4 and g(v″ = 1, N″ = 6, J″ = 5) = 1.85 ± 0.05. The large differences in the g-factors arise from vibrationally dependent spin-orbit coupling with a repulsive A3Π state.

Publication metadata

Author(s): Cox SG, McNab IR

Publication type: Article

Publication status: Published

Journal: Journal of Physics B: Atomic, Molecular and Optical Physics

Year: 2002

Volume: 35

Issue: 11

Pages: L237-L244

ISSN (print): 0953-4075

ISSN (electronic): 1361-6447

Publisher: Institute of Physics Publishing Ltd.

URL: http://dx.doi.org/10.1088/0953-4075/35/11/103

DOI: 10.1088/0953-4075/35/11/103

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