Bergeron Denis E, Musgrave Adam, Gammon Robert T, Ayles Victoria L, Silber James A E, Wright Timothy G, Wen Bo, Meyer Henning
School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom.
J Chem Phys. 2006 Jun 7;124(21):214302. doi: 10.1063/1.2198200.
We have employed (2+1) resonance-enhanced multiphoton ionization spectroscopy to record electronic absorption spectra of NO-Rg (Rg=Ne,Ar,Kr) van der Waals complexes. The nitric oxide molecule is the chromophore, and the excitation corresponds to an electron being promoted from the 2ppi* orbital to 3dsigma, 3dpi, and 3ddelta Rydberg states. We review the ordering of the 3dlambda states of NO and use this as a basis for discussing the 3d components in the NO-Rg complexes, in terms of the interactions between the Rydberg electron, the core, and the Rg atom. Predissociation of the H' 2Pi state occurs through the F2Delta state for NO-Ar and NO-Kr, and this will be considered. We shall also outline problems encountered when trying to record similar spectra for NO-Xe, related to the presence of atomic Xe resonances.
我们采用（2+1）共振增强多光子电离光谱法记录了NO-Rg（Rg = Ne、Ar、Kr）范德华复合物的电子吸收光谱。一氧化氮分子是发色团，激发对应于一个电子从2ππ*轨道跃迁到3dσ、3dπ和3dδ里德堡态。我们回顾了NO的3dλ态的排序，并以此为基础，根据里德堡电子、核心和Rg原子之间的相互作用，讨论NO-Rg复合物中的3d成分。对于NO-Ar和NO-Kr，H' 2π态通过F2δ态发生预解离，对此将予以考虑。我们还将概述在尝试记录NO-Xe的类似光谱时遇到的问题，这些问题与原子Xe共振的存在有关。
