THE MICROWAVE SPECTRUM OF DICHLOROSILYLENE $SiCl_{2}$ EXCITED VIBRATIONAL STATES
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Date
1994
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Ohio State University
Abstract
The microwave spectrum of dichlorosilylene in excited vibrational states has been measured in the millimeter-and submillimeter-wave regions, Rotational and centrifugal distortion constatnts were determined for the $\nu_{1}, \nu_{2}, 2\nu_{2}$, and $\nu_{3}$ excited states of the $Si_{25}Cl_{2}$ isotopic species and for the $\nu_{2}$ and $2\nu_{2}$ state of $Si^{35}Cl^{37}Cl$. Analysis of the Coriolis resonance between the $\nu_{1}$ and $\nu_{3}$ states of $Si^{35}Cl_{2}$ yielded values of the {D} Coriolis interaction constant with {F} constrained and of two higher-order terms and also an accurate value [$5,402338(95) cm^{-1}$] of the energy difference between the two excited vibrational states. The rotational constants of $Si^{35}Cl_{2}$ in the first excited states of the three normal vibrations were combined with those of the ground vibrational state reported in a previous $paper^{1}$ to obtain the equilibrium structure, harmonic and cubic/third-order anharmonic potential constants.
Description
1. M. Tanimoto, H. Takeo, C. Matsumura, M. Fujitake, and E. Hirota, J. Chem. Phys. 91, 2102 (1989).
Author Institution: Department of Physics, Faculty of Science, Kanazawa Unviersity; Department of Physics, The Graduate University for Advanced Studies
Author Institution: Department of Physics, Faculty of Science, Kanazawa Unviersity; Department of Physics, The Graduate University for Advanced Studies