A. S. C. Cheung. Hyperfine Structure of the[14. 6]2Δ5/2-X 2Δ5/2(9,0)Band of NiI[J]. Chinese Journal of Chemical Physics , 2004, 17(3): 279-282. doi: 10.1088/1674-0068/17/3/279-282
Citation: A. S. C. Cheung. Hyperfine Structure of the[14. 6]2Δ5/2-X 2Δ5/2(9,0)Band of NiI[J]. Chinese Journal of Chemical Physics , 2004, 17(3): 279-282. doi: 10.1088/1674-0068/17/3/279-282

Hyperfine Structure of the[14. 6]2Δ5/2-X 2Δ5/2(9,0)Band of NiI

doi: 10.1088/1674-0068/17/3/279-282
  • Received Date: 2004-01-23
  • The(9,0)band of the[14. 6]2Δ5/2 - X2Δ5/2 transition of NiI in the visible region has been studied at high resolution using laser vaporization / reaction supersonic free jet expansion and laser induced fluorescence spectroscopy. Spectrum taken at a resolution of about 80 MHz shows the resolved hyperfine structure which is caused by an unpaired electron in the excited state interacting with the large magnetic moment of the I nucleus with nuclear spin I = 5/2. The rapid decrease in hyperfine width of the low J lines in the v=9 level suggests that the hyperfine coupling in the[14. 6]2Δ5/2 state conforms to the Hund's Case aβ coupling scheme. Accurate rotational and hyperfine parameters for the[14. 6]2Δ5/2 state have been obtained,which indicate that the v=9 level is perturbed.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Hyperfine Structure of the[14. 6]2Δ5/2-X 2Δ5/2(9,0)Band of NiI

doi: 10.1088/1674-0068/17/3/279-282

Abstract: The(9,0)band of the[14. 6]2Δ5/2 - X2Δ5/2 transition of NiI in the visible region has been studied at high resolution using laser vaporization / reaction supersonic free jet expansion and laser induced fluorescence spectroscopy. Spectrum taken at a resolution of about 80 MHz shows the resolved hyperfine structure which is caused by an unpaired electron in the excited state interacting with the large magnetic moment of the I nucleus with nuclear spin I = 5/2. The rapid decrease in hyperfine width of the low J lines in the v=9 level suggests that the hyperfine coupling in the[14. 6]2Δ5/2 state conforms to the Hund's Case aβ coupling scheme. Accurate rotational and hyperfine parameters for the[14. 6]2Δ5/2 state have been obtained,which indicate that the v=9 level is perturbed.

A. S. C. Cheung. Hyperfine Structure of the[14. 6]2Δ5/2-X 2Δ5/2(9,0)Band of NiI[J]. Chinese Journal of Chemical Physics , 2004, 17(3): 279-282. doi: 10.1088/1674-0068/17/3/279-282
Citation: A. S. C. Cheung. Hyperfine Structure of the[14. 6]2Δ5/2-X 2Δ5/2(9,0)Band of NiI[J]. Chinese Journal of Chemical Physics , 2004, 17(3): 279-282. doi: 10.1088/1674-0068/17/3/279-282

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