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

S. G. Kukolich; W. H. Flygare

doi:10.1080/00268976900100871

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

S. G. Kukolich, W. H. Flygare

Chemistry and Biochemistry

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18 Scopus citations

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 (image found) 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 language	English (US)
Pages (from-to)	127-133
Number of pages	7
Journal	Molecular Physics
Volume	17
Issue number	2
DOIs	https://doi.org/10.1080/00268976900100871
State	Published - 1969

ASJC Scopus subject areas

Biophysics
Molecular Biology
Condensed Matter Physics
Physical and Theoretical Chemistry

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10.1080/00268976900100871

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

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 (image found) 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.",

author = "Kukolich, {S. G.} and Flygare, {W. H.}",

year = "1969",

doi = "10.1080/00268976900100871",

language = "English (US)",

volume = "17",

pages = "127--133",

journal = "Molecular Physics",

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T1 - Molecular g values, magnetic susceptibilities, molecular quadrupole moment, and spin-rotation interaction in 15NH3

AU - Kukolich, S. G.

AU - Flygare, W. H.

PY - 1969

Y1 - 1969

N2 - 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 (image found) 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.

AB - 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 (image found) 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.

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JO - Molecular Physics

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

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