Photoionization mass spectrometry of HI and DI at high resolution

Journal Article · Thu Dec 01 04:00:00 EST 1977 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.434726· OSTI ID:5367948

Eland, J H.D.; Berkowitz, J

The ionization potentials of HI and DI to the /sup 2/Pi/sub 3/2/ and /sup 2/Pi/sub 1/2/ states are redetermined by extrapolation of Rydberg series seen in photoionization, as: I.P.(HI), /sup 2/Pi/sub 3/2/=10.386 +- 0.001 eV, /sup 2/Pi/sub 1/2/ =11.0495 +- 0.001 eV; I.P.(DI), /sup 2/Pi/sub 3/2/=10.387 +- 0.001 eV, /sup 2/Pi/sub 1/2/ =11.0505 +- 0.001 eV The spin-orbit parameter A(HI) =-0.664 +- 0.002 eV. Several new Rydberg series have been identified and the first vibrationally excited levels have been located in three of the /sup 2/Pi states. The spectra of HI and DI are discussed and are contrasted with the photoionization spectrum of atomic Xe. Changes in the relative shapes and intensities of Rydberg peaks as functions of n* are ascribed to changes in angular momentum coupling schemes.

• Research Organization: Argonne National Laboratory, Argonne, Illinois 60439
• OSTI ID: 5367948
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 67:11; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640300* -- Atomic
Molecular & Chemical Physics
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION SPECTRA
ACCURACY
DEUTERIUM COMPOUNDS
HALOGEN COMPOUNDS
HYDRIODIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
IODINE COMPOUNDS
IONIZATION
IONIZATION POTENTIAL
MASS SPECTROSCOPY
PHOTOIONIZATION
RESOLUTION
SPECTRA
SPECTROSCOPY