Rotational-resolved pulsed field ionization photoelectron study of NO[sup +](a [sup 3][Sigma][sup +],v[sup +]=0[endash]16) in the energy range of 15. 6[endash]18. 2 eV

Journal Article · Sun Aug 01 00:00:00 EDT 1999 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.479462· OSTI ID:6325549

Jarvis, G K ^[1]; Song, Y; Ng, C Y ^[2]

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1. Chemical Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 4720 (United States)
2. Ames Laboratory, USDOE (United States) Department of Chemistry, Iowa State University, Ames, Iowa 50011 (United States)

We have obtained rotationally resolved pulsed field ionization photoelectron (PFI-PE) spectra of NO in the energy range of 15.6[endash]18.2 eV, covering ionization transitions of NO[sup +](a hthinsp;[sup 3][Sigma][sup +],v[sup +]=0[endash]16,J[sup +])[l arrow]NO(X hthinsp;[sup 2][Pi][sub 3/2,1/2],v[sup [double prime]]=0,J[sup [double prime]]). The PFI-PE bands for NO[sup +](a hthinsp;[sup 3][Sigma][sup +],v[sup +]=1[endash]5,7[endash]10,12[endash]14,16) obtained in this experiment represent the first rotationally resolved spectroscopic data for these states. The simulation of these PFI-PE bands provides accurate molecular constants for NO[sup +](a hthinsp;[sup 3][Sigma][sup +],v[sup +]=0[endash]5,7[endash]10,12[endash]14,16), including ionization energies, vibrational constants ([omega][sub e][sup +]=1295.2[plus minus]0.1 hthinsp;cm[sup [minus]1], [omega][sub e][sup +][chi][sub e][sup +]=15.198[plus minus]0.002 hthinsp;cm[sup [minus]1]), and rotational constants (B[sub e][sup +]=1.3501[plus minus]0.0070 hthinsp;cm[sup [minus]1], [alpha][sub e][sup +]=0.0206[plus minus]0.0001 hthinsp;cm[sup [minus]1]). As observed in the PFI-PE study of NO[sup +](X hthinsp;[sup 1][Sigma][sup +]), this experiment reveals a generally increasing trend for the maximum [Delta]J value and intensities of higher [Delta]J branches as v[sup +] (or bond distance) for NO[sup +](a hthinsp;[sup 3][Sigma][sup +]) is increased. This observation can be taken as strong support of the electron-molecular-ion-core scattering model for angular momentum and energy exchanges in the threshold photoionization of NO. [copyright] [ital 1999 American Institute of Physics.]

• OSTI ID: 6325549
• Journal Information: Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Vol. 111:5; ISSN JCPSA6; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

664200* -- Spectra of Atoms & Molecules & their Interactions with Photons-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
BREMSSTRAHLUNG
CATIONS
CHALCOGENIDES
CHARGED PARTICLES
ELECTROMAGNETIC RADIATION
ELECTRON SPECTROSCOPY
ENERGY LEVELS
EXCITED STATES
IONIZATION
IONIZATION POTENTIAL
IONS
MOLECULAR IONS
MOLECULAR STRUCTURE
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
PHOTOELECTRON SPECTROSCOPY
PHOTOIONIZATION
RADIATIONS
ROTATIONAL STATES
SPECTROSCOPY
SYNCHROTRON RADIATION