The rotational spectra of the normal and 13C isotopomers of difluorodimethylsilane have been measured by molecular beam Fourier-transform microwave (FTMW) and free-jet absorption millimeter-wave (FJ-AMMW) spectroscopy. Each rotational transition is split into several component lines due to the two methyl groups internal rotations. The corresponding V3 barrier has been determined to be 5.256(3) kJmol1. A r0 structure of the heavy atoms skeleton has been obtained. The silicon atom lies—accidentally— on the center of mass of the molecule.
SCHNELL M., GRABOW J.-U., HARTWIG H., HEINEKING N., MEYER M., STAHL W., et al. (2005). Structure and methyl groups internal rotation of difluorodimethylsilane. JOURNAL OF MOLECULAR SPECTROSCOPY, 229, 1-8 [10.1016/j.jms.2004.08.005].
Structure and methyl groups internal rotation of difluorodimethylsilane
CAMINATI, WALTHER
2005
Abstract
The rotational spectra of the normal and 13C isotopomers of difluorodimethylsilane have been measured by molecular beam Fourier-transform microwave (FTMW) and free-jet absorption millimeter-wave (FJ-AMMW) spectroscopy. Each rotational transition is split into several component lines due to the two methyl groups internal rotations. The corresponding V3 barrier has been determined to be 5.256(3) kJmol1. A r0 structure of the heavy atoms skeleton has been obtained. The silicon atom lies—accidentally— on the center of mass of the molecule.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
