Magnetic Resonance Absorption in Nitric Oxide

Robert Beringer; J. G. Castle, Jr

doi:10.1103/PhysRev.78.581

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Magnetic Resonance Absorption in Nitric Oxide

Robert Beringer^† and J. G. Castle, Jr.^*,†

Sloane Physics Laboratory, Yale University, New Haven, Connecticut

^*Dupont Company Fellow in Physics (1949-1950).
^†Assisted by the ONR.

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Phys. Rev. 78, 581 – Published 1 June, 1950

DOI: https://doi.org/10.1103/PhysRev.78.581

Abstract

The nine-line magnetic resonance spectrum of $N^{14}$ $O^{16}$ is observed at fields in the range of 8600 oersted at a frequency of 9360 megacycle/sec. The spectrum arises from magnetic-dipole transitions between Zeeman levels in the $J = \frac{3}{2}$ state of the ${}^{2}Π_{\frac{3}{2}}$ spin component. The line positions allow a determination of the magnetic $IJ$ coupling constant, which is 29.8±0.3 megacycle/sec., and the nuclear electric quadrupole coupling, which is -1.7±0.5 megacycle/sec. The line position and triplet spacings, which arise from molecular perturbations, are in good agreement with the theory of Margenau and Henry. The absolute intensity of the three stronger lines is measured to be $χ^{''} = 1.2 \times 10^{- 10}$ which also agrees with theory.

References (20)

R. Beringer and J. G. Castle, Jr., Phys. Rev. 76, 868 (1949)
Purcell, Torrey, and Pound, Phys. Rev. 69, 37 (1946) Bloch, Hansen, and Packard, 69, 127 (1946) E. Zavoisky, J. Phys. U.S.S.R. 9, 211, 245 (1945) J. H. E. Griffiths, Nature 158, 670 (1946)
H. A. Kramers, Atti Congr. Fis., Como (1927)
G. Herzberg, Molecular Spectra and Molecular Structure (Prentice-Hall, Inc., New York, 1939), pp. 241, 242, 326, 502
H. Margenau and A. Henry, Phys. Rev. 78, 587 (1950)
R. V. Pound, Rev. Sci. Inst. 17, 490 (1946)
Omitted endnote
J. M. Sturtevant, Rev. Sci. Inst. 18, 124 (1947)
R. H. Dicke, Rev. Sci. Inst. 17, 268 (1946)
J. L. Lawson and A. W. Tyler, Rev. Sci. Inst. 10, 304 (1939) W. G. Wadey, Thesis, University of Michigan (1948)
Omitted endnote
Radiation Laboratory Series (McGraw-Hill Book Company, Inc., New York, 1947), Vol. 11, p. 161
N. J. Hopkins, Rev. Sci. Inst. 20, 401 (1949)
Thomas, Driscoll, and Hipple, Phys. Rev. 75, 902 (1949)
J. H. Van Vleck and V. F. Weisskopf, Rev. Mod. Phys. 17, 227 (1945)
W. D. Hershberger, J. App. Phys. 19, 411 (1948)
Bloembergen, Purcell, and Pound, Phys. Rev. 73, 679 (1948)
F. Bloch and A. Siegert, Phys. Rev. 57, 522 (1940)
Eq. (14) of [5]
B. T. Feld, Phys. Rev. 72, 1116 (1947)

[c1] R. Beringer and J. G. Castle, Jr., Phys. Rev. 76, 868 (1949)

[c2] Purcell, Torrey, and Pound, Phys. Rev. 69, 37 (1946) Bloch, Hansen, and Packard, 69, 127 (1946) E. Zavoisky, J. Phys. U.S.S.R. 9, 211, 245 (1945) J. H. E. Griffiths, Nature 158, 670 (1946)

[c3] H. A. Kramers, Atti Congr. Fis., Como (1927)

[c4] G. Herzberg, Molecular Spectra and Molecular Structure (Prentice-Hall, Inc., New York, 1939), pp. 241, 242, 326, 502

[c5] H. Margenau and A. Henry, Phys. Rev. 78, 587 (1950)

[c6] R. V. Pound, Rev. Sci. Inst. 17, 490 (1946)

[c7] Omitted endnote

[c8] J. M. Sturtevant, Rev. Sci. Inst. 18, 124 (1947)

[c9] R. H. Dicke, Rev. Sci. Inst. 17, 268 (1946)

[c10] J. L. Lawson and A. W. Tyler, Rev. Sci. Inst. 10, 304 (1939) W. G. Wadey, Thesis, University of Michigan (1948)

[c11] Omitted endnote

[c12] Radiation Laboratory Series (McGraw-Hill Book Company, Inc., New York, 1947), Vol. 11, p. 161

[c13] N. J. Hopkins, Rev. Sci. Inst. 20, 401 (1949)

[c14] Thomas, Driscoll, and Hipple, Phys. Rev. 75, 902 (1949)

[c15] J. H. Van Vleck and V. F. Weisskopf, Rev. Mod. Phys. 17, 227 (1945)

[c16] W. D. Hershberger, J. App. Phys. 19, 411 (1948)

[c17] Bloembergen, Purcell, and Pound, Phys. Rev. 73, 679 (1948)

[c18] F. Bloch and A. Siegert, Phys. Rev. 57, 522 (1940)

[c19] Eq. (14) of [5]

[c20] B. T. Feld, Phys. Rev. 72, 1116 (1947)

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Magnetic Resonance Absorption in Nitric Oxide

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