THE PERMANENT ELECTRIC DIPOLE MOMENT OF 3D-MONOHYDRIDES: CrD1
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Date
2007
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Ohio State University
Abstract
A description of the bonding in the ground and low-lying electronic states of the first-row transition metal monohydrides becomes complicated because of the simultaneous involvement of the \ 3d$^n\ 4s$^2, 3d$^{n+1}\ 4s$^1$\ and, to some extent, \ 3d$^n\ 4s$^1\ 4p$^1$\ electron configurations of the metal. The permanent electric dipole moment can provide insight into this complicated bonding. Here we report on the determination of \mu_{e}$ for chromium CrD. A number of low-N lines of the X$^6\Sigma - A$^6\Sigma$ (0,0) band of chromium monodeuteride, CrD, have been recorded at near the natural line width limit by combining a supersonic molecular beam with high resolution laser excitation spectroscopy. The analysis gives the permanent electric dipole moment of the X$^6\Sigma$(v=0) state as 3.51(3)D and 1.152(5)D for the A$^6\Sigma$(v=0) state can be measured with higher precision because of some interesting near degeneracies in its level structure. A comparison with theoretical predictions for CrH} \textbf(85), 2850(1986).}'} \textbf{161}, 455(1993).}'} \textbf{110}, 2560(2006).}'} \textbf{121}, 8194(2004).} and experimental values other 3d transition metal monohydrides will be given.
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Author Institution: Department of Chemistry and Biochemistry, Arizona State University, Tempe, AZ 85287