Microwave spectra of SiH2DF and SiHD2F: Harmonic force field and molecular structure |
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Authors: | AG Robiette C Georghiou JG Baker |
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Institution: | Department of Chemistry, The University, Reading RG6 2AD, England;Atomic, Molecular and Polymer Physics Group, Schuster Laboratory, The University, Manchester M13 9PL, England |
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Abstract: | The ground vibrational state rotational spectrum of SiH2DF and SiHD2F has been studied in the frequency region 24–58 GHz. The observed transitions have been used to obtain the A, B, C rotational constants and three of the five quartic distortion constants present in the reduced Hamiltonian of Watson.The A, B, C rotational constants obtained in this work in combination with the B constants of the six symmetric isotopes were used to determine accurate substitution and average structures. An approximate equilibrium structure is also estimated.The general harmonic force field of silyl fluoride has been redetermined using all existing data. |
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