Molecular g values, magnetic susceptibilities, molecular quadrupole moment, and spin-rotation interaction in 15NH3

Stephen G Kukolich, W. H. Flygare

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The first-order Zeeman effect was observed at 25 kg on the inversion transition in 15NH3 for seven different rotational states. The measured g values are g = 0·563±0·001 and g = 0·500±0·001. The upper limit on the magnetic susceptibility anisotropy in ammonia is determined to be The molecular quadrupole moment is Q = - (1·9±1·0) × 10-26 e.s.u. cm2. The diagonal elements in the diamagnetic and paramagnetic susceptibility tensors are given along with the second moment of the electronic charge distribution. The molecular g values are combined with the nitrogen and hydrogen spin-rotation constants to obtain values of 1/r3 matrix elements between ground and excited states. The results for NH3 are compared to the recent results in H2O.

Original languageEnglish (US)
Pages (from-to)127-133
Number of pages7
JournalMolecular Physics
Volume17
Issue number2
DOIs
StatePublished - Jan 1 1969
Externally publishedYes

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Charge distribution
Anisotropy
Magnetic susceptibility
Ammonia
Excited states
Ground state
Tensors
Hydrogen
Nitrogen
quadrupoles
moments
magnetic permeability
Zeeman effect
rotational states
charge distribution
ammonia
interactions
tensors
inversions
nitrogen

ASJC Scopus subject areas

  • Biophysics
  • Molecular Biology
  • Physical and Theoretical Chemistry
  • Condensed Matter Physics

Cite this

Molecular g values, magnetic susceptibilities, molecular quadrupole moment, and spin-rotation interaction in 15NH3 . / Kukolich, Stephen G; Flygare, W. H.

In: Molecular Physics, Vol. 17, No. 2, 01.01.1969, p. 127-133.

Research output: Contribution to journalArticle

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