First observation of the B̃A11 state of SiH2 and SiD2 radicals by optical-optical double resonance spectroscopy

Autor: Yasuhiko Muramoto, Naohiko Mikami, Haruki Ishikawa
Rok vydání: 2005
Předmět:
Zdroj: The Journal of Chemical Physics. 122:154302
ISSN: 1089-7690
0021-9606
DOI: 10.1063/1.1881172
Popis: The B1A1 state of SiH2 and SiD2 was observed by the optical-optical double resonance technique for the first time. The electronic band origin of the B state of SiD2 was determined to be 27 214.11 cm(-1). A very clear exclusive behavior depending on the even/odd value of the bending vibrational quantum number was observed in the spectra, representing a quasilinear behavior of the B state. The barrier height to linearity was estimated to be approximately 125 cm(-1) by the quasilinear analysis of the bending vibrational level structure of SiD2.
Databáze: OpenAIRE