First observation of the B1A1 state of SiH2 and SiD2 radicals by optical-optical double resonance spectroscopy |
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| Authors: | Muramoto Yasuhiko Ishikawa Haruki Mikami Naohiko |
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| Institution: | Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan. |
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| Abstract: | 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. |
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