title: Electronic spectroscopy of the 3d Rydberg states of NO-Rg (Rg=Ne,Ar,Kr,Xe) van der Waals complexes.
abstract: 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.
authors.affiliation: School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom.
authors.forename: Denis E
authors.initials: DE
authors.lastname: Bergeron
authors.forename: Adam
authors.initials: A
authors.lastname: Musgrave
authors.forename: Robert T
authors.initials: RT
authors.lastname: Gammon
authors.forename: Victoria L
authors.initials: VL
authors.lastname: Ayles
authors.forename: James A E
authors.initials: JA
authors.lastname: Silber
authors.forename: Timothy G
authors.initials: TG
authors.lastname: Wright
authors.forename: Bo
authors.initials: B
authors.lastname: Wen
authors.forename: Henning
authors.initials: H
authors.lastname: Meyer