Microwave measurements of cobalt and nitrogen quadrupole coupling in Co(CO)3NO

S. G. Kukolich; M. A. Roehrig; S. T. Haubrich; J. A. Shea

doi:10.1063/1.460377

Microwave measurements of cobalt and nitrogen quadrupole coupling in Co(CO)₃NO

S. G. Kukolich, M. A. Roehrig, S. T. Haubrich, J. A. Shea

Chemistry and Biochemistry

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Abstract

J = 2→3, 3→4, 4→5, and 5→6 transitions in the oblate symmetric top molecule cobalt tricarbonyl nitrosyl were measured using a Flygare-Balle type pulsed beam microwave spectrometer. K = 0 and K = 3 transitions were observed for J = 3→4 and 4→5. Hyperfine structure due to ⁵⁹Co and ¹⁴N nuclear quadrupole coupling interactions was well resolved. The measured quadrupole coupling strengths are eQq _cc. (⁵⁹Co) = 35.14(30) MHz and eQq_cc ( ¹⁴N) = -1.59(10). Measured rotation and distortion constants are B₀ = 1042.1590(4) MHz and D_j = 0.17(8) kHz. The measured B value is 4% smaller than the B value calculated from electron diffraction data. Spin-rotation and a quadrupole distortion term were also obtained for ⁵⁹Co.

Original language	English (US)
Pages (from-to)	191-194
Number of pages	4
Journal	The Journal of chemical physics
Volume	94
Issue number	1
DOIs	https://doi.org/10.1063/1.460377
State	Published - 1991

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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title = "Microwave measurements of cobalt and nitrogen quadrupole coupling in Co(CO)3NO",

abstract = "J = 2→3, 3→4, 4→5, and 5→6 transitions in the oblate symmetric top molecule cobalt tricarbonyl nitrosyl were measured using a Flygare-Balle type pulsed beam microwave spectrometer. K = 0 and K = 3 transitions were observed for J = 3→4 and 4→5. Hyperfine structure due to 59Co and 14N nuclear quadrupole coupling interactions was well resolved. The measured quadrupole coupling strengths are eQq cc. (59Co) = 35.14(30) MHz and eQqcc ( 14N) = -1.59(10). Measured rotation and distortion constants are B0 = 1042.1590(4) MHz and Dj = 0.17(8) kHz. The measured B value is 4% smaller than the B value calculated from electron diffraction data. Spin-rotation and a quadrupole distortion term were also obtained for 59Co.",

author = "Kukolich, {S. G.} and Roehrig, {M. A.} and Haubrich, {S. T.} and Shea, {J. A.}",

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T1 - Microwave measurements of cobalt and nitrogen quadrupole coupling in Co(CO)3NO

AU - Kukolich, S. G.

AU - Roehrig, M. A.

AU - Haubrich, S. T.

AU - Shea, J. A.

PY - 1991

Y1 - 1991

N2 - J = 2→3, 3→4, 4→5, and 5→6 transitions in the oblate symmetric top molecule cobalt tricarbonyl nitrosyl were measured using a Flygare-Balle type pulsed beam microwave spectrometer. K = 0 and K = 3 transitions were observed for J = 3→4 and 4→5. Hyperfine structure due to 59Co and 14N nuclear quadrupole coupling interactions was well resolved. The measured quadrupole coupling strengths are eQq cc. (59Co) = 35.14(30) MHz and eQqcc ( 14N) = -1.59(10). Measured rotation and distortion constants are B0 = 1042.1590(4) MHz and Dj = 0.17(8) kHz. The measured B value is 4% smaller than the B value calculated from electron diffraction data. Spin-rotation and a quadrupole distortion term were also obtained for 59Co.

AB - J = 2→3, 3→4, 4→5, and 5→6 transitions in the oblate symmetric top molecule cobalt tricarbonyl nitrosyl were measured using a Flygare-Balle type pulsed beam microwave spectrometer. K = 0 and K = 3 transitions were observed for J = 3→4 and 4→5. Hyperfine structure due to 59Co and 14N nuclear quadrupole coupling interactions was well resolved. The measured quadrupole coupling strengths are eQq cc. (59Co) = 35.14(30) MHz and eQqcc ( 14N) = -1.59(10). Measured rotation and distortion constants are B0 = 1042.1590(4) MHz and Dj = 0.17(8) kHz. The measured B value is 4% smaller than the B value calculated from electron diffraction data. Spin-rotation and a quadrupole distortion term were also obtained for 59Co.

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Microwave measurements of cobalt and nitrogen quadrupole coupling in Co(CO)₃NO

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