THE OPTICAL STARK SPECTRA OF CoF AND CoH

Tomonari,M.; Okuda, R.; Nagashima, U.; Tanaka, K.; Hirano, T.;\textit {J.~Chem.~Phys.Author Institution: Department of Chemistry and Biochemistry, Arizona State University, Tempe,AZ 85287Comparing the predicted and observed permanent electric dipole moments, $\mu$$_{el}$, for simple diatomic cobalt containing molecules is a means of testing computational methodologies used for modeling cobalt-catalyzed reactions. Here we report on the experimental determination of $\mu$$_{el}$ for CoH and CoF from the analysis of the Stark shifts in the (0,0) bands of the $A^{\prime}^{3}$$\Phi_{4}-X^{3}\Phi_{4}$ system of cobalt monohydride, CoH, and the $[18.8]^{3}$$\Phi_{4}-X^{3}\Phi_{4}$ system of cobalt monofluoride, CoF. In addition, the proton magnetic hyperfine interaction in CoH is analyzed. The relative values for $\mu$$_{el}$ are rationalized using a molecular orbital correlation diagram and with high-level \textit {ab initio} predictions\underline {\textbf{126}} 144307, 2007.}