Ishikawa H, Nagao C, Mikami N
Graduate School of Science, Tohoku University, Aoba-ku, Sendai, 980-8578, Japan
J Mol Spectrosc. 1999 Mar;194(1):52-60. doi: 10.1006/jmsp.1998.7757.
Rovibrational levels with one quantum of CH stretch mode, (1, v2, v3), in the Ã1A" electronic state of HCP were observed for the first time by IR-UV double resonance spectroscopy. Nine vibrational levels were identified in the energy region of 37 500-40 800 cm-1. Perturbations similar to those in the (0, v2, v3) levels were also observed in many of the vibrational levels. It was found that the CH stretch frequency in the Ã1A" state is reduced about 270 cm-1 relative to that of the electronic ground state. Copyright 1999 Academic Press.
通过红外-紫外双共振光谱首次观测到了HCP的Ã1A"电子态中具有一个CH伸缩模式量子的振转能级(1, v2, v3)。在37500 - 40800 cm-1的能量区域内识别出了九个振动能级。在许多振动能级中也观测到了与(0, v2, v3)能级中类似的微扰。研究发现，Ã1A"态中的CH伸缩频率相对于电子基态降低了约270 cm-1。版权所有1999年，学术出版社。
