The electric dipole moment of magnesium deuteride, MgD

Timothy Steimle, Ruohan Zhang, Hailing Wang

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Abstract

The (0,0) A2Π-X 2Σ+ band of a cold molecular beam sample of magnesium monodeuteride, MgD, has been recorded field-free and in the presence of a static electric field of up to 11 kV/cm. The lines associated with the lowest rotational levels are detected for the first time. The field-free spectrum was analyzed to produce an improved set of fine structure parameters for the A2Π (v = 0) state. The observed electric field induced splittings and shifts were analyzed to produce permanent electric dipole moments, μel of 2.567(10)D and 1.31(8)D for A 2Π (v = 0) and X2Σ+(v = 0) states, respectively. The recommended value for μel(X2Σ + (v = 0)) for MgH, based upon the measured value for MgD, is 1.32(8)D.

Original languageEnglish (US)
Article number224308
JournalJournal of Chemical Physics
Volume140
Issue number22
DOIs
Publication statusPublished - Jun 14 2014

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ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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