Sideband optical-optical double resonance Zeeman spectroscopy. II. Studies of NiH, PdD, and PtH

Michael C. McCarthy, Hideto Kanamori, Timothy Steimle, Mingguang Li, Robert W. Field

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

Sideband optical-optical double resonance Zeeman spectroscopy is applied here to studies of the transition metal hydrides NiH, PdD, and PtH. For both NiH and PtH, in addition to obtaining Zeeman information on the ground and several excited electronic states, extremely small ground state proton hyperfine splittings have been resolved. For PdD, sub-Doppler spectra of the XΩ = 0.5 ground state have been recorded even though the upper state in the optical transition is strongly predissociated. For all three radicals, the double-resonance Zeeman studies reveal that the g values in each state deviate from their nominal Hund's coupling case (a) or (b) value with increasing rotational quantum number J. This Zeeman information, in addition to providing a sensitive confirmation of electronic assignments, also provides direct evidence of electronic state mixing (which is not present in ordinary non-Zeeman spectra) and useful in modeling the interactions between electronic states.

Original languageEnglish (US)
Pages (from-to)4179-4188
Number of pages10
JournalJournal of Chemical Physics
Volume107
Issue number11
DOIs
StatePublished - Sep 18 1997

ASJC Scopus subject areas

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

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