The stretching vibrational overtone bands (3000), (4000) and (5000) of silane are recorded on a Fourier transform spectrometer with a specially made multipass cell at a resolution of 0.01 cm-1. The spectra show a stri...The stretching vibrational overtone bands (3000), (4000) and (5000) of silane are recorded on a Fourier transform spectrometer with a specially made multipass cell at a resolution of 0.01 cm-1. The spectra show a striking symmetrical top rotational structure, which has been predicted as the limiting case of a spherical top exhibiting local mode behavior, and provides an excellent chance to study the local mode rotational structures in detail. This article reviews the interpretation and analysis of the spectra in both local mode and normal mode pictures. The intramolecular dynamics following initial single bond excitation is also discussed.展开更多
基金Project supported by the National Natural Science Foundation of China and the Chinese Academy of Sciences.
文摘The stretching vibrational overtone bands (3000), (4000) and (5000) of silane are recorded on a Fourier transform spectrometer with a specially made multipass cell at a resolution of 0.01 cm-1. The spectra show a striking symmetrical top rotational structure, which has been predicted as the limiting case of a spherical top exhibiting local mode behavior, and provides an excellent chance to study the local mode rotational structures in detail. This article reviews the interpretation and analysis of the spectra in both local mode and normal mode pictures. The intramolecular dynamics following initial single bond excitation is also discussed.
