NH3 and PH3 molecular quadrupole moments and the signs of molecular g-values

J. Combariza, W. R. Salzman, S. G. Kukolich

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2 Scopus citations


Molecular Zeeman effect data for NH3 and PH3 was reviewed and reanalyzed to obtain molecular quadrupole moments. Since the signs of molecular g-values were not directly measured, molecular quadrupole moments were also calculated using ab initio SCF programs to remove ambiguities in the signs of g-values. For NH3, Qcc (measured) = -3.4(4) buckingham and Qcc (calculated) = -2.8 buckingham. For PH3, Qcc (measured) = -2.3(12) buckingham and Qcc (calculated) = -2.4 buckingham. These values support positive g-values for NH3 (gaa=gbb=0.568(2), gcc=0.500(2)), and for PH3 gaa=gbb=-0.325(9), and gcc=0.011(1).

Original languageEnglish (US)
Pages (from-to)607-608
Number of pages2
JournalChemical Physics Letters
Issue number6
StatePublished - Apr 13 1990


ASJC Scopus subject areas

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

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