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.
Structure and methyl groups internal rotation of difluorodimethylsilane / SCHNELL M.; GRABOW J.-U.; HARTWIG H.; HEINEKING N.; MEYER M.; STAHL W.; CAMINATI W.. - In: JOURNAL OF MOLECULAR SPECTROSCOPY. - ISSN 0022-2852. - STAMPA. - 229:(2005), pp. 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.
