화학공학소재연구정보센터
Journal of Chemical Physics, Vol.109, No.20, 8940-8947, 1998
Two-photon spectroscopy of the NO-Ne complex
Electronic states of the NO-Ne complex correlating with several low lying Rydberg states of the NO molecule are investigated using (2+1) resonance enhanced multiphoton ionization. The observed band systems for the states F (2)Delta, E (2)Sigma, and C (2)Pi consist of at least two vibrational bands assigned to the stretching mode. For the H (2)Pi state five members of the stretch progression are observed. Binding energies range from 120 to 280 cm(-1). The rotational structure of the observed. bands is analyzed using a rigid rotor Hamiltonian. Jacobi bond angles between 50 degrees and 85 degrees are found for the vibrationally averaged structures. Spectra for the NO-X complexes (X=Ar, Ne) correlating with the vibrational levels C (2)Pi upsilon' (NO)=0, 1, and 4 exhibit a constant red shift. The anomalous red shift found for the levels upsilon' (NO)=2, 3 indicates a change in the degree of mixing with the state B (2)Pi upon complexation.