# Knowledge Bank

## University Libraries and the Office of the Chief Information Officer

The Knowledge Bank is scheduled for regular maintenance on Sunday, April 20th, 8:00 am to 12:00 pm EDT. During this time users will not be able to register, login, or submit content.

# FOURIER TRANSFORM MICROWAVE SPECTRUM OF THE FeCN RADICAL (X$^4\Delta_i$) AND CONFIRMATION OF THE GROUND ELECTRONIC STATE

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/49439

Files Size Format View
abstract.gif 55.02Kb GIF image
TC09_osu2011_FeCN-FTMW.pptx 1.784Mb Microsoft PowerPoint 2007 View/Open
Slide1.GIF 73.59Kb GIF image
Slide2.GIF 117.4Kb GIF image
Slide3.GIF 97.05Kb GIF image
Slide4.GIF 38.24Kb GIF image
Slide5.GIF 78.57Kb GIF image
Slide6.GIF 62.53Kb GIF image
Slide7.GIF 175.0Kb GIF image
Slide8.GIF 66.52Kb GIF image
Slide9.GIF 77.05Kb GIF image
Slide10.GIF 79.45Kb GIF image
Slide11.GIF 132.3Kb GIF image
Slide12.GIF 83.07Kb GIF image

 Title: FOURIER TRANSFORM MICROWAVE SPECTRUM OF THE FeCN RADICAL (X$^4\Delta_i$) AND CONFIRMATION OF THE GROUND ELECTRONIC STATE Creators: Halfen, D. T.; Flory, M. A.; Harris, B. J.; Ziurys, L. M. Issue Date: 2011 Abstract: The pure rotational spectrum of the FeCN radical (X$^4\Delta_i$) has been measured using Fourier transform microwave (FTMW) techniques in the 4 - 40 GHz frequency range and a laser ablation source. The species was produced using Discharge Assisted Laser Ablation Spectroscopy (DALAS) in a supersonic jet expansion of iron vapor and (CN)$_2$, diluted in argon carrier gas. The fundamental rotational transition, J = 9/2 $\rightarrow$ 7/2 ($\Omega$ = 7/2), was recorded near 36 GHz. Three hyperfine transitions, due to the nitrogen nuclear spin of I = 1, were observed in the spectrum. These data were combined with the previous millimeter/submillimeter measurements of FeCN in a global fit and nitrogen hyperfine constants were determined. These measurements confirm that the ground state of FeCN is $^4\Delta_i$, as suggested by previous millimeter/submillimeter measurements of Flory \& Ziurys. Theoretical calculations have predicted that the ground state of this radical is $^6\Delta_i$. In a $^6\Delta_i$ state, the J = 9/2 $\rightarrow$ 7/2 transition does not exist in the lowest energy ladder ($\Omega$ = 9/2). URI: http://hdl.handle.net/1811/49439 Other Identifiers: 2011-TC-09