# THE FOURIER TRANSFORM MICROWAVE SPECTRUM OF YOH AND YOD (\ {X}$^1\Sigma^+$)

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 Title: THE FOURIER TRANSFORM MICROWAVE SPECTRUM OF YOH AND YOD (\ {X}$^1\Sigma^+$) Creators: Halfen, D. T.; Ziurys, L. M. Issue Date: 2012 Publisher: Ohio State University Abstract: The pure rotational spectra of YOH and YOD (\~{X}$^1\Sigma^+$) have been recorded in the 4 - 40 GHz range using Fourier transform microwave (FTMW) techniques. These species were created in a supersonic jet expansion of laser ablated yttrium vapor and either H$_2$O or D$_2$O vapor. The J = 1 $\rightarrow$ 0 and 2 $\rightarrow$ 1 rotational transitions have been measured for both YOH and YOD. The data have been analyzed, and rotational and centrifugal distortion constants have been determined. Metal hydroxides can possess either a linear or bent geometry. The structure of this species has been determined from these data to be linear, in agreement with previous electronic spectra. YOH is only the second 4d transition metal hydroxide, after AgOH - a bent species, to have its pure rotational spectrum measured. Description: Author Institution: Department of Chemistry, Department of Astronomy, and Steward Observatory, University of Arizona, Tucson, AZ 85721 URI: http://hdl.handle.net/1811/52370 Other Identifiers: 2012-FC-03