O'Brien LC, Cao H, O'Brien JJ
Department of Chemistry, Southern Illinois University at Edwardsville, Edwardsville, Illinois, 62026-1652
J Mol Spectrosc. 2000 Jan;199(1):100-108. doi: 10.1006/jmsp.1999.7999.
The near-infrared electronic transition of CuCl, occurring in the region of 745 nm, was recorded using intracavity laser absorption spectroscopy. The (0, 0), (1, 1), and (2, 2) vibronic bands were analyzed, and from this the molecular constants for the two electronic states were derived. Originally assigned as A' (3)Sigma(+)-X(1)Sigma(+), we have confirmed that this transition does not connect to the ground state, but occurs between two unknown excited states. The excited CuCl molecules were produced in a copper hollow cathode, operated using argon and a small amount of CCl(4). Line positions were referenced to iodine spectra observed from a heated extracavity cell using the broadband spectral output of the intracavity laser as the light source. Copyright 2000 Academic Press.
利用腔内激光吸收光谱记录了CuCl在745nm区域发生的近红外电子跃迁。对（0, 0）、（1, 1）和（2, 2）振转带进行了分析，并由此推导出两种电子态的分子常数。最初被指定为A'（3）Σ⁺-X（1）Σ⁺，我们已经证实该跃迁不与基态相连，而是发生在两个未知的激发态之间。激发的CuCl分子在铜空心阴极中产生，使用氩气和少量CCl₄进行操作。谱线位置以从加热的腔外池中观察到的碘光谱为参考，使用腔内激光的宽带光谱输出作为光源。版权所有2000年学术出版社。
