A further investigation of the A1Pu state of dicarbon
A further investigation of the A1Pu state of dicarbon
复制标题
二碳A1Pu态的进一步研究
DOI：
10.1016/j.jms.2018.11.003
复制
发表时间：
2019
影响因子：
1.4
通讯作者：
Masakazu Nakajima
中科院分区：
文献类型：
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作者：
Zhang Jun;Kosaka Wataru;Miyasaka Hitoshi;堤龍介，吉永智大，齊藤勝彦，郭其新，池田茂，田中徹;Masakazu Nakajima
在室温下，记录了二碳的多普勒限制吸收光谱的菲利普斯带 (A 1 Π u–X 1 Σ g+)，涉及 v′= 9–11。在 A 1 Π u 态的 v= 10 能级中发现了旋转能级的小能量变化。 A 1 Π u (v= 10) 和 c 3 Σ u+(v= 7) 之间的自旋轨道相互作用导致了能级移动。除了 A 1 Π u (v= 10) 中的扰动之外，还重新研究了先前在 A 1 Π u 的 v= 2 和 6 水平中识别的扰动。根据这些振动能级的微扰分析，A 1 Π u 和 c 3 Σ u+ 态之间的自旋轨道相互作用的大小估计约为 4 cm− 1。
Doppler-limited absorption spectra of dicarbon are recorded for Phillips bands (A 1 Π u–X 1 Σ g+) involving v′= 9–11 at a room temperature. Small energy shifts of rotational levels are identified in the v= 10 level of the A 1 Π u state. The spin-orbit interaction between A 1 Π u (v= 10) and c 3 Σ u+(v= 7) is responsible for the level shifts. In addition to the perturbations in A 1 Π u (v= 10), those previously identified in the v= 2 and 6 levels of A 1 Π u are re-investigated. The magnitude of the spin-orbit interaction between the A 1 Π u and c 3 Σ u+ states is evaluated to be approximately 4 cm− 1 from perturbation analyses for these vibronic levels.