MICROWAVE SPECTRUM, INTERNAL BARRIER, MOLECULAR STRUCTURE AND DIPOLE MOMENT OF DISILANYL FLUORIDE.
MALLINCKRODT CHEMICAL LAB HARVARD UNIV CAMBRIDGE MASS
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The microwave spectra of five isotopic species of disilanyl fluoride Si2H5F were studied in the region 12-38 Gcsec. Several of the ground state transitions are split into doublets, some into triplets, due to the coupling of internal and overall rotation. Analysis of the splittings gives a barrier value V-3 1048 plus or minus 40 calmole. Rotational constants were determined for molecules containing silicon-28, -29 and -30 isotopes in each positions, and were used to calculate the structure. Stark effect measurements yield mu-A 0.934 D, mu-B 0.850 D and a total dipole moment mu 1.26 plus or minus 0.01 D inclined at an angle of 10 degrees to the SiF bond. Author
- Inorganic Chemistry
- Atomic and Molecular Physics and Spectroscopy