Fourier-transform microwave spectroscopy of FeCN (X4Δ i): Confirmation of the quartet electronic ground state

L. N. Zack; J. Min; B. J. Harris; M. A. Flory; L. M. Ziurys

doi:10.1016/j.cplett.2011.08.040

Fourier-transform microwave spectroscopy of FeCN (X⁴Δ _i): Confirmation of the quartet electronic ground state

L. N. Zack
, J. Min
, B. J. Harris
, M. A. Flory
, L. M. Ziurys

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

Spectra of the FeCN radical have been measured using Fourier-transform microwave (FTMW) techniques. This species was created in a supersonic jet by laser-ablation of iron, coupled with a dc discharge, in the presence (CN) ₂. The lowest rotational transition of FeCN near 36 GHz was recorded. The observation of this transition, the J = 9/2 → 7/2 line in the Ω = 7/2 spin-orbit component, conclusively establishes that FeCN has a ⁴Δ_i ground electronic state, rather a ⁶Δ state, as predicted by theory. The FTMW spectrum of NiCN (X²Δ_i) was also measured; small nitrogen hyperfine splitting was observed in both molecules.

Original language	English (US)
Pages (from-to)	202-206
Number of pages	5
Journal	Chemical Physics Letters
Volume	514
Issue number	4-6
DOIs	https://doi.org/10.1016/j.cplett.2011.08.040
State	Published - Oct 6 2011

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/j.cplett.2011.08.040

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title = "Fourier-transform microwave spectroscopy of FeCN (X4Δ i): Confirmation of the quartet electronic ground state",

abstract = "Spectra of the FeCN radical have been measured using Fourier-transform microwave (FTMW) techniques. This species was created in a supersonic jet by laser-ablation of iron, coupled with a dc discharge, in the presence (CN) 2. The lowest rotational transition of FeCN near 36 GHz was recorded. The observation of this transition, the J = 9/2 → 7/2 line in the Ω = 7/2 spin-orbit component, conclusively establishes that FeCN has a 4Δi ground electronic state, rather a 6Δ state, as predicted by theory. The FTMW spectrum of NiCN (X2Δi) was also measured; small nitrogen hyperfine splitting was observed in both molecules.",

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T1 - Fourier-transform microwave spectroscopy of FeCN (X4Δ i)

T2 - Confirmation of the quartet electronic ground state

AU - Zack, L. N.

AU - Min, J.

AU - Harris, B. J.

AU - Flory, M. A.

AU - Ziurys, L. M.

PY - 2011/10/6

Y1 - 2011/10/6

N2 - Spectra of the FeCN radical have been measured using Fourier-transform microwave (FTMW) techniques. This species was created in a supersonic jet by laser-ablation of iron, coupled with a dc discharge, in the presence (CN) 2. The lowest rotational transition of FeCN near 36 GHz was recorded. The observation of this transition, the J = 9/2 → 7/2 line in the Ω = 7/2 spin-orbit component, conclusively establishes that FeCN has a 4Δi ground electronic state, rather a 6Δ state, as predicted by theory. The FTMW spectrum of NiCN (X2Δi) was also measured; small nitrogen hyperfine splitting was observed in both molecules.

AB - Spectra of the FeCN radical have been measured using Fourier-transform microwave (FTMW) techniques. This species was created in a supersonic jet by laser-ablation of iron, coupled with a dc discharge, in the presence (CN) 2. The lowest rotational transition of FeCN near 36 GHz was recorded. The observation of this transition, the J = 9/2 → 7/2 line in the Ω = 7/2 spin-orbit component, conclusively establishes that FeCN has a 4Δi ground electronic state, rather a 6Δ state, as predicted by theory. The FTMW spectrum of NiCN (X2Δi) was also measured; small nitrogen hyperfine splitting was observed in both molecules.

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VL - 514

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JO - Chemical Physics Letters

JF - Chemical Physics Letters

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ER -

Fourier-transform microwave spectroscopy of FeCN (X⁴Δ _i): Confirmation of the quartet electronic ground state

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