Doppler-free two-photon excitation spectroscopy and the Zeeman effect in the channel three region of C6H6

被引：0
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作者：
Dae, Youl Baek [1 ]
Chen, JinHai [1 ]
Wang, Jinguo [1 ]
Doi, Atsushi [1 ]
Kasahara, Shunji [1 ]
Baba, Masaaki [2 ]
Kato, Hajime [1 ]
机构：
[1] Molecular Photoscience Research Center, Kobe University, Nada-ku, Kobe 657-8501
[2] Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502
来源：
Bulletin of the Chemical Society of Japan | 2006年 / 79卷 / 01期
关键词：
Doppler-free two-photon excitation spectra and the Zeeman effects for the 1021401 and 10 11401 bands; whose vibrational excess energies are 3412 and 2492 cm-1; respectively; of the S1 1B2u ← S0 1A1g transition in gaseous benzene-h6 have been measured. Rotationally resolved lines up to a rotational excess energy of 945 cm-1 in the 1011401 band; whose excess energy is isoenergetic with the one of the 102140 1 band at low J; have been observed. The density of perturbation is observed to increase around the K = 0 and K = J levels in the 10 11401 band as the rotational energy increases; but line broadening is not observed. It was reported that only the K = 0 lines at low J and the K = J lines at high J were observed as a sharp line and the rest was washed out by broadening in the 10214 01 band. The assignments are confirmed by the Zeeman spectra. The character and magnitude of Zeeman splittings in both bands could be understood as originating from the electronic orbital angular momentum arising from a mixing of the S1 1B2u and S2 1B1u states via J-L coupling. The levels of the S 1 1B2u state are found not to be mixed with a triplet state by the Zeeman effect. © 2006 The Chemical Society of Japan;
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页码：75 / 79
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